资源简介

(共34张PPT)
Developing ideas & Other parts—Language points
Unit 5　A delicate world
Learn some important language points：absorb；break down；comparison; 状语从句的省略.(重点难点)
Learn some important language points：on behalf of；secure.(重点)
Learning Objectives
核心考点
一
1
absorb
吸收；理解；吸引；使专心；吞并
(absorbing adj.十分吸引人的；引人入胜的absorbed adj.精神集中的)
导练1　一词多义
①After absorbing polluted water, the plants grow worse and worse.
_____
②Though I am strict with the students, they can’t still absorb that much. _____
③However，when something did interest me，I could become absorbed. _______
④Most little shops have been absorbed into big businesses due to the influence of the global financial crisis. _____
吸收
理解
使专心
吞并
导读
①The trap absorbed his attention the instant the specialist arrived at the clinic.
②It was such an absorbing book that I was absorbed in/absorbed myself in it immediately.
③As is known to us all，trees and plants absorb water and nutrients from soil.
导思
(1)absorb one’s attention 吸引某人的注意力
absorb... ...从……中吸收……
(2)be absorbed /absorb oneself 专心致志于；全神贯注于
from
in
in
导练2　一句多译
汤姆如此专心于工作以至于他忘了告知我调查的结果。
→Tom that he forgot to inform me of the result of the investigation.(absorbed)
→ that he forgot to inform me of the result of the investigation.(so ...that ...引导的倒装句)
→ ,Tom forgot to inform me of the result of the investigation.(形容词短语作状语)
was so absorbed in his work
So absorbed was Tom in his work
Absorbed in his work
[名师点津]　be absorbed in结构在句中作状语或定语时，常省略be动词，直接用absorbed in...。类似的结构还有：be lost in，be caught in，be buried in，be devoted to，be occupied in，be involved in等。
2
break down
(机器或车辆)出故障，抛锚，损坏；(讨论、关系或系统)失败，破裂，失灵；分解；感情失控(痛哭起来)；(身体)垮掉；捣毁；拆除；消除，破除(障碍或偏见)
导练　一词多义
①The van must break down just when I was about to depart.
____________
②Talks with the business leaders broke down last night. _____
③Because he was so kind and considerate to me，I broke down and cried. ________
④Women’s sports are breaking down the barriers in previously male-dominated(男士主宰的) fields. _____
⑤Lead does not break down in the body，but builds up in it. _____
出故障，抛锚
失败
感情失控
破除
分解
导读
①His computer broke down so he couldn’t hand in his homework.
②They had escaped to America shortly before the tragic war broke out in 1939.
③It was wrong of the journalist to break away from the masses.
④Scientists think they are beginning to break through in the fight against cancer.
⑤Looking at the erosion of this land，the young man broke into tears.
⑥While the specialist was conceiving how to protect the vegetation，a parakeet broke in.
导思
break 挣脱，脱离
break 破门而入；打断(谈话等)
break 闯入；突然……起来(后接 tears，laughter等)
break (战争)爆发；(火灾)发生
break 突围；突破；冲垮；克服
break up拆开；结束；解散
away (from)
in
into
out
through
3
comparison
n.比较
(compare v.& n.比较；对比)
导读
①By comparison，the expense on education decreased last year.
②By/In comparison with other animals，this species is more endangered and mysterious.
→Compared with/to other animals，this species is more endangered and mysterious.
③The specialist compared the copy with the original，but there was not much difference.
④Kids can test their skills and compare their abilities to the animals of Yellowstone.(2023·新课标Ⅱ)
导思
(1)by/in comparison 与……相比
comparison相比之下
(2)compare... ...把……比作/喻为……
compare... ...与……相比
compared with/to和……比起来
beyond compare无与伦比；举世无双
with
by
to
with
导练　单句语法填空/单句写作
①They were living well，in (compare)with people elsewhere in the world.
② comparison，the brains of apes(类人猿) require only 8%of rest-time energy.
③It is said that about 20%of 25-34-year-olds live with their parents，
(compare) with 16% in 1991.(2020·全国Ⅲ)
④人们总把人生比作长河。
_______________________________________________________
comparison
By
compared
People often compare life to a long river.
Although endangered elsewhere in China due to the invasion of foreign species，the bees of Shennongjia have coexisted with the local people for centuries.
4
导读
①When (you are) in doubt，ask the moderator himself.
②Once (they are) disturbed by the noise，the elderly won’t have a sound sleep the whole night.
③If (it is) possible，we’ll build another clinic in this area.
导思
如果状语从句的主语和主句的主语一致或从句主语为it，而且从句谓语中有be动词的某种形式，可以将状语从句的主语连同be动词一起省略。
导练　单句语法填空/完成句子
①While (discuss) the plan，they found it suitable for the place.
② ，we experienced the joy of picking peaches.
虽然很累很渴，但我们体验到了采摘桃子的乐趣。
③ ，please set a trap to catch the rat in the house.
如果必要的话，请在房子里安个夹子，抓住那只大老鼠。
discussing
Although tired and thirsty
If necessary
易学考点
二
1
on behalf of(＝on one’s behalf)
代表
represent v.代表；象征；描绘
stand for代表；象征
①The educator can’t be here today，so I’m going to speak on behalf of him/on his behalf.
今天教育专家不能到这里来，所以我将代表他发言。
②In the Western countries，“V” often victory.
在西方国家，“V”通常代表胜利。
stands for
③Representing my government，I have the honour to submit the following statistics to you.
→ my government，I have the honour to submit the following statistics to you.
我荣幸地代表我国政府向你提交如下统计数据。
On behalf of
2
secure
adj.稳固的；可靠的；安全的 v.保护；保卫
(security n.安全；保证；证券；抵押品)
secure...against/from...保护……使免于……
①We shall make sure these endangered species are as secure as possible.
我们应该确保这些濒危物种尽量安全。
②Some measures are needed to secure the necessities ___________
terrorists.
需要采取措施保护这些必需品不被恐怖分子抢劫。
③If an alarm gives you that feeling of (secure)，then it’s worth carrying.
如果带着闹钟让你感到心里踏实，那就值得携带。
from/against
security
达标检测
三
Ⅰ.单句语法填空
1.A family full of love can give children a sense of (secure) and happiness.
2. (compare) with the size of the whole earth，the highest mountain doesn’t seem high at all.
3.While (serve) as a volunteer at the Olympics，she made friends with the famous golf player.
4.It’s my honour to deliver this speech here behalf of all the students in my school.
security
Compared
serving
on
5.In the botanical garden，we can find (vary) of plants that range from tall trees to small flowers.
6. (absorb) in his work，Tom forgot to ask for his exact time for departure.
7.The young girl tried to break away her family after graduation.
varieties
Absorbed
from
Ⅱ.完成句子
1. ，I’m not going to participate in this investment.
即使受到邀请，我也不去参加这项投资。
2.I’m writing to express their thanks for your comics.
我代表我的孩子们写信，表达他们对你的漫画的感谢。
Even if/though invited
on behalf of my children
3.I and found I had made a mistake.
我把自己的答案与老师的进行对比，发现我犯了一个错误。
compared my answers with the teacher’s(共42张PPT)
Developing ideas—
Reading Comprehension
Unit 5　A delicate world
1. Find out why Shennongjia has been chosen as a UNESCO World Heritage Site.
2. Work out the structure of a lecture and make a lecture, applying some data, examples and comparisons to serve the lecture.
3. Talk about the differences and similarities of two things.
读前清障
一
Ⅰ.匹配单词
1.herbal A.not done，seen，happening，etc.very often
2.fossil 　 B.connected with or made from herbs
3.rare 　　 C.the fact of a large number of people or things arriving
somewhere
4.thrive D.to exist together in the same place or at the same time，
especially in a peaceful way
5.coexist　 E.the remains of an animal or a plant which have become hard
and turned into rock
6.invasion　 F.to become，and continue to be，successful，strong，
healthy，etc.
Ⅱ.选词填空
1. our class，I will deliver a speech on the importance of liberty.
2. the fact that he had a bad cold，he lost his appetite.
3.The activity a rewarding and meaningful activity by all of us students.
On behalf of
on behalf of，coexist with，due to，in return，be regarded as
Due to
is regarded as
4.These are gestures of genuine friendship with no favours expected __________.
5. Apparently driverless cars will human-driven cars in the long run.
in return
on behalf of，coexist with，due to，in return，be regarded as
coexist with
精读课文
二
Lead-in
What are the UNESCO World Heritage Sites in China
the Dujiangyan Irrigation System
都江堰水利系统
the Great Wall长城
the Potala Palace布达拉宫
Imperial Palaces of the Ming and Qing Dynasties皇宫
Huanglong Scenic and Historic Interest Area黄龙风景名胜区
Sichuan Giant Panda Sanctuaries
四川大熊猫基地
South China Karst
喀斯特地貌
Qinghai Hoh Xil
青海 可可西里
Those are some Cultural and Natural World Heritage sites.
Do you know what World Heritage Site it is
Shennongjia
Watch the video and answer the questions.
1. Who is Shennong
2. Where is Shennongjia and what is it famous for
Pre-reading
1. Who is Shennong
A mythical figure in ancient China who brought agriculture and the use of herbal medicine to China and who invented agricultural tools and techniques, and the Chinese calendar with its 24 solar terms.
2. Where is Shennongjia and what is it famous for
Shennongjia lies in the north west of Hubei Province and is famous for its beauty and diversity.
Look at the title of the passage and think about what it means.
The title raises a question：Why did Shennongjia make it onto the UNESCO World Heritage List
Let’s come to our text.
While-reading
1.What’s the main idea of the passage
A. The beautiful scenery of Shennongjia.
B. Rare animal and plant resources in Shennongjia.
C. People’s efforts to protect Shennongjia.
D. The reason why Shennongjia was onto the UNESCO World Heritage List.
Fast-reading
√
Learning to learn
The lecture is one of the oldest teaching methods, and is still widely used today. A typical lecture often starts with addressing the topic directly. Data, examples and comparisons are then used to support the main ideas. Both verbal and visual information is used in order to maintain the audience’s interest. The end of a lecture is often followed by a short question-and-answer session.
2.The genre(体裁) of the passage is ________.
lecture
Read the passage and match the main idea with each part.
Part 1 (Paras.1－2)　 A. The summary of the speech.
Part 2 (Paras.3－5) B. Efforts of scientists and local people’s
protection to Shennongjia.
Part 3 (Paras.6－7) C. The reasons why Shennongjia was added
to the UNESCO World Heritage List.
Part 4 (Paras.8－9) D. Introduction to the topic of the speech.
3. The structure of the passage:
Good morning, everyone. It is my great pleasure to give a lecture here on behalf of the Be at One with Nature Association.
1. Para 1 is the __________of the lecture.
greeting
Careful-reading
Part. 1 (Paras.1－2)
As we know, in 2016, Shennongjia made it onto the UNESCO World Heritage List. But there are so many important places not yet on this list. So you might ask: why Shennongjia Is it its forests that stretch on and on like great green seas Is it the legendary father of Chinese herbal medicine, Shennong, after whom the park is named Or is it the mysterious creature called “Yeren” (wild man) that has captured the imagination of the world
Introduction（Para. 2)
What roles do the questions play
To interest the audience and introduce the topic of the lecture.
3. When was Shennongjia listed on the UNESCO World Heritage List
A．In 2014. B．In 2015.
C．In 2016. D．In 2017.
2. What roles do the questions play
√
Why is Shennongjia awarded this status
It contains a ____________________________ and it is also one of the _____________ in the world where scientists can observe in real time.
Because it meets two criteria required by the list.
naturally-balanced environment
rare locations
Part. 2 (Paras.3－5)
Reasons: two criteria for selection
the first criteria
the second criteria
______________
natural balance
__________________
incredible biodiversity
Deep thinking:
Can you find some evidence to illustrate the two cirteria
Efforts to protect Shennongjia
To take things from nature without causing damage
To look after species
Result: The monkey’s population has__________.
Measure: Scientists supply ________ to the Golden Snub- nosed Monkey.
food
doubled
People live in __________
with nature.
harmony
Deep thinking:
Can you find some evidence to illustrate the results of the protective measures
Part. 3 (Paras.6－7)
To make the description more accurate and vivid, there are three techniques in writing:
giving data;
taking examples;
making comparisons
① 引用数据是用具体的数据对事物的特征或事理加以说明，使说明更准确、更有说服力。
②举例是通过具体的实例对事物的特征或事理加以说明，使说明更加生动形象、易于理解。
③作比较是将两个事物放在一起比较，呈现事物的相同点和不同点。
Read the sentences from the passage and decide if they serve to give data(D), examples(E) or make comparisons(C)．
1.The region rises from about 400 metres to over 3,000 metres above sea level,... _______
2....over 3,000 plant species have been recorded there. This represents more than ten per cent of China’s total floral richness. _______
3.Shennongjia supports more than 600 vertebrate species，including the Golden Snub -nosed Monkey and the Clouded Leopard. _______
4. In winter, scientists brave heavy snow and freezing temperatures to supply food to the Golden Snub -nosed Monkey. _______
5. Although endangered elsewhere in China due to the invasion of foreign species，the bees of Shennongjia have coexisted with the local people for centuries. _______
D
D
D&E
E
C
The summary of the speech
1. It ___________________ on the UNESCO World Heritage List.
2. It contributes to
_________________________________
of our natural world.
Part. 4 (Paras.8－9)
deserves its place
protecting a unique and wonderful part
1.In order to be onto the UNESCO World Heritage List, how many criteria should be met
A. Four. B. Three. C. Two. D. One.
2. Why is Shennongjia one of the most “complete” natural areas in the world
A. The region rises from about 400 meters to over 3,000 meters above sea level.
B. The region has a great variation in climatic conditions.
C. There are a wide variety of species to thrive in this region.
D. All above.
the whole passage
√
√
3. Which of the following sentences is WRONG
A. Shennongjia is named after the legendary father of Chinese herbal medicine, Shennong.
B. Before the 1980s，the number of the Golden Snub-nosed Monkeys is below 700.
C. The fact that the bees of Shennongjia have coexisted with the local people shows that people live in harmony with nature.
D. The wild animals in Shennongjia live naturally without human care.
√
4. What does “this” refer to in Para.5
A. Over 3,000 plant species found in Shennongjia.
B. 4,300 insect species recorded in Shennongjia.
C. All the creatures in Shennongjia.
D. More than 600 vertebrate species.
√
5. Repeat the speech again according to the mind map.
To protect the ecology of Shennongjia, scientists make every effort to look after the species. In winter, scientists brave heavy snow and freezing temperatures to supply food to the Golden Snub- nosed Monkey. More importantly, the local people live in harmony with nature. They take things from nature without damaging it.
1. According to the passage, what has been done to protect the ecology of Shennongjia What do you think of these measures (Critical thinking)
Post-reading
Discussion
Share your own answers.
2.Which part of Shennongjia interests you most Why (Creative thinking)
WHY SHENNONGJIA
In 2016，Shennongjia made it onto the UNESCO World Heritage List. It was awarded this status because it meets two criteria 1.__________(require) by the list.
To begin with, it contains a naturally balanced environment that allows the many and various species to live and prosper. The region rises from about 400 metres 2.___ over 3,000 metres above sea level, 3.________(result) in a great variation in climatic conditions. Some of the plants and animals 4._____________(regard) as living fossils.
required
to
resulting
are regarded
Summary
What’s more, it is also one of the rare 5._________(location) in the world where scientists can observe the 6.__________(ecology) and biological processes that occur as the plants and animals develop and evolve. According to official statistics, over 3,000 plant species and about 4,300 insects have been recorded. Shennongjia also supports more than 600 vertebrate species. Therefore, 7.____ is a challenge to look after so many species. Thanks to people’s efforts, the Golden Snub -nosed Monkey’s population has doubled since the 1980s. The most impressive aspect is the local people, 8._______ take things from nature without 9.________(cause) damage. All of this highlights how understanding, 10._________(aware) and hard work have contributed towards protecting the unique natural world.
locations
ecological
it
who
causing
awareness
Good morning, everyone. It is my great pleasure to give a lecture here on behalf of the Be at One with Nature Association.
As we know, in 2016, Shennongjia made it onto the UNESCO World Heritage List. But there are so many important places not yet on this list. So you might ask : why Shennongjia Is it its forests that stretch on and on like great green scas Is it the legendary father of Chinese herbal medicine, Shennong, after whom the park is named Or is it the mysterious creature called “Yeren” (wild man) that has captured the imagination of the world
it 作形式主语，to do 不定式为真正主语
代表
众所周知
定语从句
“介词+关系代词”引导非限制性定语从句
过去分词作后置定语
强调句的一般疑问句
获得成功或达到
Analyze the key points of the text
Paragraphs 1-2
UNESCO awarded Shennongjia this status because it meets two criteria required by the list.It contains a naturally-balanced environment that allows the many and various species to live and prosper. It is also one of the rare locations in the world where scientists can observe
in real time the ecological and biological processes that occur as the plants and animals develop and evolve.
过去分词短语作后置定语
谓语 “拥有”
定语从句
关系副词引导定语从句
实时
that引导定语从句
as引导时间状语从句
Paragraph 3
For the first criterion, Shennongjia is apparently one of the most “complete” natural areas in the world.The region rises from about 400 metres to over 3,000 metres above sea level, giving it the name the “Roof of Central China”.The vast range in altitude results in a great variation in climatic conditions.This allows a wide variety of species to thrive. Some of the plants and animals have survived millions of years, and
are regarded as living fossils.
副词修饰谓语
现在分词短语作状语
rise from...to...从······上升到······
导致（结果）
各种各样的
be regarded as被认为是
Paragraph 4
For the second criterion, we can see that Shennongjia has incredible biociversity. Look at this slide. According to official statistics, over 3,000 plant species have been recorded there.This represents more than ten per cent of China’s total floral richness.Shennongjia supports more than 600 vertebrate species, including the Golden Snub-nosed Monkey and the Clouded Leopard.Additionally, around 4,300 insect species have been recorded.
引导宾语从句
丰富的生物多样性
根据，按照
超过，多于
“包含······在内”
副词修饰句子
Paragraph 5
It is a challenge to look after so many species.In winter, scientists brave heavy snow and freezing temperatures to supply food to the Golden Snub-nosed Monkey. Thanks to theire fforts, the monkey’s population has doubled since the 1980s.Their number reached over1,300 in 2015 and continues to grow.
动词，勇于置身（恶劣或危险境地）
严寒
多亏了，由于
since常和现在完成时连用
持续，继续
Paragraph 6
But the most impressive aspect of Shennongjia is the local people, who take things from nature without causing damage.I visited a local village which is known for its home-made honey.What is special about the honey is that it is produced by the earliest species of Chinese bee.Every spring, the villagers place beehives around their houses
to attract these wild bees from the forest.
定语从句
“介词+动词-ing形式”作状语
be known for...因······而闻名
主语从句
表语从句
目的状语
Paragraph 7
Although endangered elsewhere in China due to the invasion of foreign species,the bees of Shennongjia have coexisted with the local people for centuries.By providing the bees with a secure home, the villagers collect their honey in return.This is just one of the ways in which people of Shennongjia live and work in harmony with nature.
让步状语从句（省略了主语和系动词）
因为，由于
与·····共生，共存
给·····提供·····
作为回报
定语从句修饰ways
与自然和谐共存
Paragraph 7
All of this explains why Shennongjia earned—and deserves—its place on the UNESCO World Heritage List, as well as highlighting how understanding,awareness and hard work have contributed towards protecting a unique and wonderful part of our natural world.
Thank you for listening. Now, does anyone have any questions
why引导宾语从句
介词短语
how引导宾语从句
Paragraphs 8-9
Give a talk comparing Macquarie Island and Shennongjia.
Macquarie Island
Shennongjia
Homework(共35张PPT)
Starting out & Understanding ideas—Language points
Unit 5　A delicate world
Learning Objectives
Learn the following language points：decrease；trap；owe；现在分词短语作结果状语；否定词置于句首的部分倒装.(重点难点)
Learn the following language point：remove...from...(重点)
核心考点
一
1
decrease
v.(使)减少；减小 n.减少
导读
①Through the 20th century，forested area in the Philippines decreased from 70 percent to 20 percent.
②The number of specialists of the province has decreased to one hundred so far.
③As many as 10 of the 17 kinds of penguins may be in danger of disappearing，the number of which has decreased by 30% since 1987.
④Fortunately，the number of cyclists running against traffic lights is on the decrease.
(1)decrease sth. sth. 从……减少到……
decrease ... 减少到……
decrease ... 降低了……
(2) the decrease 在减少
导思
from
to
by
on
to
导练　单句语法填空/句型转换
①By the end of last year，the number of people buying Japanese cars had decreased 20%.
②The number of new students decreased from 210 160 this year.
③According to the statistics，this species of parakeets is decreasing in number every year.
→According to the statistics，this species of parakeets is _______
in number every year.
by
to
on the
decrease
[名师点津]　decrease的反义词increase的用法如下：
increase to... 增加(长)到……
increase by... 增加(长)了……
increase from...to...从……增加到……
on the increase 正在增加
2
trap
n.夹子；陷阱 v.诱捕；诱骗；使陷入困境
导读
①We set traps in the cafeteria for the rat in order to catch it.
②Some days later，the lion fell into a trap and it tried to get out of it，but in vain.
③The rabbit was trapped in a trap set by the hunter.
④He felt he had been trapped into accepting the compensation terms(补偿条款).
导思
(1)set/lay/place a trap 设陷阱捕捉……
fall a trap 落入圈套
(2)be trapped sth. 困在……中；陷在……里
trap sb. doing... 诱骗某人做……
for
into
in
into
导练　单句语法填空/单句写作
①When answering questions online，you may be trapped _____
giving away very important personal information.
②If you choose this way，you’re likely to fall ____ a trap.
③那时小型货车司机被困在着火的小型货车里。
_______________________________________________________________
into
into
The van driver was trapped in the burning van at the moment.
3
owe
v.应该做；对……负有……的义务
导读
①I owe my success to my social studies teacher who is a beacon in my life on the road to writing.(2022·新课标Ⅰ)
②The comrade has helped you a lot，so you owe it to him to treat him to dinner.
③I owe it to you that this incident has obtained the media’s attention.
④I certainly owe you an apology for my wife’s sudden intervention.
⑤Owing to the infectious virus，his immunity has decreased dramatically.
导思
(1)owe sth. sb. (＝owe sb. sth. ) 把……归功于某人；欠某人……
owe to sb. to do sth. (为了感谢某人)应该做……，有义务做……
owe to sb. that...把……归功于某人
owe sb. an apology 该向某人道歉
(2) (＝because of/on account of/due to) 由于
to
it
it
owing to
导练　单句语法填空/单句写作/句式升级
①My specialist is such a great soul, ___whom I owe many thanks.
②I owe __ to you that I could keep the balance of ecology here.
③占用你那么多的时间，我非常抱歉。
_______________________________________________________
to
it
I owe you an apology for occupying too much of your time.
④Owing to the severe environmental pollution，this species of bird is decreasing in numbers every year.
→ the severe environmental pollution this species of bird is decreasing in numbers every year.(强调句型)
It is owing to
that
The green grass and bare rock of its landscape contrast dramatically，giving it a wild and natural beauty.
4
导读
①The sunlight is white and blinding，throwing hard-edged shadows on the ground.
②He worked hard，only to fail in the competition.
③European football is played in 80 countries，making it the most popular sport in the world.
＝European football is played in 80 countries，which makes it the most popular sport in the world.
导思
(1)现在分词短语作结果状语，表示一个自然而然的结果，其逻辑主语往往是前面的句子；如果表示一个出乎意料的结果，常用动词不定式表示。
(2)现在分词短语作结果状语，有时可以改为一个which引导的非限制性定语从句。
导练　单句语法填空/完成句子
①The civil war lasted nearly a month， (leave)nothing valuable.
②He was busy with the reconstruction of his house，only
(stop) to have a smoke.
③The twins hurried to the train station， the train had left.
双胞胎匆忙到了火车站，结果被告知火车早已开走了。
leaving
stopping
only to be told
Nor would they fail to imagine how its native inhabitants，including royal penguins，king penguins，and elephant seals，existed in perfect harmony with their natural habitat for thousands of years.
5
导读
①Never have I seen an incident which made him so disheartened.
②Not until recently did they encourage the development of tourist activities in the rural districts.
③At no time did they actually break the rules of the game，so it was unfair to punish them.
导思
当含有否定意义的词或短语never，hardly，seldom，little，few，not until，not，not only，no sooner，no longer，nowhere，by no means，at no time，on no account，in no case，under no circumstances等置于句首时，其后用部分倒装。
导练　完成句子/句型转换
① a pay increase，but they want reduced working hours as well.
女销售员们不仅想要加薪，而且还要求减少工作时间。
②He couldn’t hear criticism；he could neither hear praise.
→He couldn’t hear criticism； hear praise.
Not only do the saleswomen want
nor could he
易学考点
二
remove...from...
从……移开/去掉……
remove sth. from... 从……搬走某物
remove sb. from...开除某人
remove one’s doubt/trouble 消除某人的疑虑/烦恼
①When fat and salt are removed from food，the food tastes as if it is missing something.
当脂肪和盐被从食物中去除时，食物尝起来好像缺少了一些东西。
②It was surprising that he was removed from the company for being late.
他因为迟到而被公司开除了，这真令人惊讶。
③We tried to and let her tell the truth.
我们试图消除她的疑虑，让她说出真相。
remove her doubt
达标检测
三
Ⅰ.单句语法填空
1.As is known to us all，ten (multiply) by two is twenty.
2.What made his parents annoyed was that he was removed _____
school for bad behavior.
3. (trap) in the traffic jam，the specialist was late for the finance meeting.
4.There exists a problem between my parents and me， (make)
it impossible for me to concentrate on my study.
multiplied
from
Trapped
making
5.My mother has no appetite food，so I cook some dishes easy to digest for her.
6.For the machine，this quality is not inborn， is it something introduced by mankind.
7.Most parents owe to the school when asked the reason for their children’s change.
8.A local newspaper remarked that the number of literary masterpieces was the decrease.
for
nor
it
on
9.He narrowly lost his life a consequence of not obeying the traffic rules.
as
Ⅱ.完成句子
1. the days when you were with us.
我永远不会忘记你和我们一起的日子。
2. ，the match was cancelled.
由于大雨，比赛取消了。
3.He a no-win situation.
他陷入必败的处境。
Never shall I forget
Owing to the rain
was trapped in
4.The population 1 million last year.
人口去年减少到100万。
5.The news shocked the public，____________________________
students’ safety at school.
这条新闻使广大民众感到震惊，引起了人们对在校生安全的高度关注。
decreased to
leading to great concern about(共46张PPT)
Understanding ideas—
Reading Comprehension
Unit 5　A delicate world
1.To learn how the chaos was caused in Macquarie Island and how people tried to conserve the island.
2.To use “cause and effect” structure to describe a story.
3.To realize the great effect of humans’ actions on ecology and the importance of ecological balance.
读前清障
一
Ⅰ.匹配单词
1.chaos　　　 A.physical desire for food
2.appetite B.the relation of plants and living creatures to each
other and to their environment
3.explode C.to increase suddenly and very quickly in number
4.departure D.a piece of equipment for catching animals
5.ecology E.a state of complete confusion and lack of order
6.trap F.the act of leaving a place
Ⅱ.选词填空
1.For decades，we have dedicated ourselves to building a society ________________ nature.
2.I you get the opportunity to collaborate with that big company.
3.The incident showed that the problems needed to be settled _____
___________.
in harmony with
fail to do，in harmony with，develop an appetite for，once
and for all，owe it to sb to do
owe it to
to
once
and for all
4.He helped me tackle the tricky problem，and words ___________ express how grateful I was to him.
5.What made us amazed was that the twins from Africa __________
_____________ Sichuan cuisine.
failed to
fail to do，in harmony with，develop an appetite for，once
and for all，owe it to sb to do
developed
an appetite for
精读课文
二
Lead-in
Do you know food chain look at the pictures and their connection.
Are humans part of Earth’s ecosystms Why
Yes, because all living things live in ecosystems and humans are living things.
Free talk:
We are all connected.
From the smallest ant to the tallest tree.
Each and every creature is part of the ecosystem(生态系统).
Look at the picture and answer the questions.
What animals can you see in the picture
2.What kind of changes would take place if cats, rats and rabbits were introduced to an environment like this
They would hunt the birds and eat the native vegetation, thus upsetting the local ecological balance.
Penguins, an elephant seal and a wild bird.
Pre-reading
Let’s enjoy a video to learn about Macquarie Island
Macquarie Island—UNESCO World Heritage Centre
Macquarie Island (34 km long x 5 km wide) is an oceanic island in the Southern Ocean, lying 1,500 km south-east of Tasmania and approximately halfway between Australia and the Antarctic continent. The island is the exposed crest of the undersea Macquarie Ridge, raised to its present position where the Indo-Australian tectonic plate meets the Pacific plate. It is a major geoconservation significance, being the only place on earth where rocks from the earth’s mantle (6 km below the ocean floor) are being actively exposed above sea-level. These unique exposures include excellent examples of pillow basalts and other extrusive rocks.
Background Information
Let’s read the passage and find out what happened to Macquarie island.
Background Information
While-reading
1.What’s the main idea of the passage
How Macquarie Island was saved from destruction.
Fast-reading
Part 1 Para._____　　
Part 2 Paras.　 　
Part 3 Paras.　　
the _________ of the island
the_______________ of the island
the ________________ of the island
1
beauty
2-3
chaos
4-6
conservation
2. Look through the passage, divide it into three parts, and get the main idea of each part.
3.When did Macquarie Island’s tragic story begin
A．In 1870.
B．When humans arrived on the island.
C．When humans planted many different plants there.
D．When people raised rabbits there.
√
4. Which of the following animals weren’t brought to the island by humans
A．Parakeets. B．Cats.
C．Mice. D．Rabbits.
5.Which way was mentioned to remove the rabbits
A．Using traps and dogs.
B．Raising more cats.
C．Releasing a virus onto the island.
D．Killing them.
√
√
6.According to the passage, which of the following is right
A．Macquarie Island became a nature reserve in the 1980s.
B．The last Macquarie Island cat disappeared in 1990.
C．The virus solved the rabbit problem.
D．Rabbits developed an immunity to the virus and their numbers exploded once again.
√
1.From what aspects does the author introduce the island in Para.1
Location
1486km
1294km
Shape
Inhabitants
Royal penguins ; king penguins; elephant seals
long and thin
Why
Strong winds and stormy seas
In the ______________________, ________ between Australia and Antarctic.
South-west Pacific ocean
halfway
Landscape
Green grass; bare rock; a wild and natural beauty
Careful-reading
Part. 1
The beauty of the island
long and thin shape
green grass and bare rocks
_________________
_________________
__________________
wild
natural
harmonious
2.In what ways can we find Macquarie Island is beautiful
World Heritage Site
beauty
native inhabitants
natural habitat
thousands of years
a short time
Read part 2(Paras.2－3) and answer the questions.
1. What animals were brought to the island
2. What happened after they reached the island
Tips: Pay attention to the causes and effects when reading.
Part. 2(Paras.2－3)
To live there
To control rats and mice
To provide food for humans
took over the island
eat the birds’ eggs
attack baby birds
develop an appetite for the birds
multiplied quickly
eat the native vegetation
digging holes
cause soil erosion
more rabbits means more cats
more cats hunted the birds and parakeets died out
Humans arrived in1810
Purposes
Results
Humans _________ actions have a ______ effect on ecology.
bad
careless
Try to use your own words to summarize the two paragraphs.
(Use “cause and effect” structure(因果结构) to describe the chaos.)
“cause”:
表“原因” 的表达:
due to, because of, owing to,
because, since, as…
“effect”:
表 “结果”的 表达:
therefore, so, thus, as a result,
lead to…, unfortunately，subsequently, in turn…
Time In the 1970s In the 1980s
Actions The island became an 1.___________________. A 2._____ was released to control the rabbits. 4.________________ were used to catch the cats.
Results Rabbit population were reduced to 10,000.The 3.______ killed more native birds. The last cat was caught in 2000.5.______ started to increase.
The large number of mice and rats
The remaining 10,000 rabbits
Disastrous results in 2006
Caused some land to collapse
Killed a substantial number of penguins
Remove all the invading species once and for all.
Part. 3(Paras.4－5)
Fill in the following blanks with information in Paras.4－5.
official nature reserve
virus
cats
Traps and dogs
Rats
1. What’s the author’s mission on the island
Remove the last remaining invading species.
2.How do you understand the sentence “...we humans owe it to the island to give it a happy ending.” at the end of the passage
It is humans that have caused great damage to the island and it is our duty to help it return to normal.
the last paragraph
Rats & mice
cats
rabbits
human’s careless behaviors
Human’s improper measures
“We humans owe it to the island to give it a happy ending.”
Deep thinking:
What do you think is to blame for the chaos in Macquarie Island
Human
beauty
Summary
chaos
conservation
harmony
Postscript:
In 2014, Macquarie Island is pest-free and its ecology is on the road to recovery.
In 2016, the permanent scientific research station was closed down.
Better late than never！
Match the main idea with each paragraph.
Para.1
Para.2
Para.3
Para.4
Para.5
Para.6
A. The rabbit problem resulted in parakeets’ dying out.
B. The rat, mouse and rabbit problem made people realise that problems should be solved once and for all.
C. The author participated in a programme to tackle this very problem.
D. Native inhabitants on Macquarie Island were once in perfect harmony with their natural habitat.
E. People released a virus to kill rabbits and used traps and dogs to catch the cats.
F. Rats and mice brought to the island caused harm.
the whole passage
2.Match the events with the year when they happened.
1. In 1810　　　A. Parakeets died out.
2. In 1891 B. Humans arrived on the island.
3. In the 1970s C. The last Macquarie Island cat was caught.
4. In the 1980s D. Traps and dogs were used to catch the cats.
5. In 2000 E. Macquarie Island became an official nature reserve.
6. In 2006 F. The rabbits’ digging caused some land to collapse，and
killed a substantial number of penguins.
7. In 2014 G. Macquarie Island was declared pest -free and the island’s
ecology is finally on the road to recovery.
Time cue
1810
meanwhile
1891
1970s
According to the time order, can you retell the passage
1980s
2000
2006
now
“Chaos” means the harmonious ecosystem of the island was badly damaged by the non -native species.
“Conservation” means humans made great efforts to recover it.
The author aims to tell us how Macquarie Island was saved from destruction.
Deep thinking:
Why does the author use the title “from Chaos to Conservation”
1.Do you think it was right to eradicate the “pests” from Macquarie Island Give your reasons.(Critical thinking)
Share your own answers.
Post-reading
Discussion
To avoid similar situations in the future, we should protect the natural ecosystem and be aware of the potential impact that human activities can have on ecosystems.
2.How could similar situations be avoided in the future (Creative thinking)
Macquarie Island was a beautiful place 1._______its native inhabitants, including royal 2.________(penguin), king penguins, and elephant seals, existed 3._____ harmony with their natural habitat for thousands of years. However, in 1810, humans 4.________(arrive) on the island with rats and mice. They quickly took over the island, eating birds’ eggs and 5._________(attack) baby birds. Cats 6._____________(bring) to control the rats and mice, but they also liked eating birds. Meanwhile, rabbits were introduced to the island but the exploding rabbit population provided food for cats, meaning that the number of cats also increased 7._________(rapid).
where
penguins
in
arrived
attacking
were brought
rapidly
Summary
This in turn led to more cats hunting birds. The end result was that parakeets, once large in number and native to the island, died 8.______in 1891.
A virus 9.________(release) onto the island caused rabbit population to decrease, but the cats, without enough rabbits to eat, killed native birds for food. Although all the cats were caught in 2000，rats and mice exploded once again. Besides, the rabbits’ 10._______(dig) caused some land to collapse and killed many penguins.
A programme was started to tackle this problem. This intervention is a long process, but we humans owe it to the island to give it a happy ending.
out
released
digging
I am standing on Macquarie Island, in the South-west Pacific Ocean, halfway between Australia and Antarctica.Strong winds and stormy seas have helped sculpt its long, thin shape. The green grass and bare rock of its landscape contrast dramatically, giving it a wild and natural beauty. No visitor would think it surprising that the island is a UNESCO World Heritage Site. Nor would they fail to imagine how its native inhabitants, including royal penguins, king penguins, and elephant seal, existed
in perfect harmony with their natural habitat for thousands of years.
副词修饰contrast
形式宾语
宾语从句
否定副词放在句首引起句子部分倒装
没能做成
how引导的宾语
和谐共存
Analyze the key points of the text
Paragraph 1
But the island’s more recent history tells a different story. It’s a tragic story that began in 1810 when humans arrived on the island. In their ships they unknowingly brought rats and mice. These small animals quickly took over the island, eating the birds’ eggs and attacking baby birds. Cats were brought to the island to control the rats and mice. Unfortunately, the cats subsequently developed an appetite for the birds, too.
定语从句
定语从句
占领
现在分词短语作结果状语
副词修饰整个句子
对······产生兴趣
Paragraph 2
Meanwhile, rabbits were introduced to the island as a source of food for humans. Loose on the island, they did what rabbits do best— they multipled rapidly and began eating the native vegetation and digging holes, which caused soil erosion. The exploding rabbit population provided plentiful food for the cats, meaning that the number of cats also increased. This in turn led to more cats hunting the birds. The end result was that parakeets, once large in number and native to the island, died out in 1891.
副词，与此同时
作为
形容词短语作状语，逻辑主语为they
宾语从句
非限制性定语从句
分词短语作状语
宾语从句
结果
表语从句
“导致”， to为介词，后接名词或动词 -ing形式
Paragraph 3
Even after Macquarie Island became an official nature reserve in the 1970s, the rabbis remained out of control. Experts felt it nccessary to come up with a plan to remove all the rabbits from the island. With this goal in mind, a virus was released onto the island. But although the virus caused the rabbit population to decrease from 1 30,000 to around 10,000, it also meant less food for the cats. The rats in consequence turned their attention—and their stomachs—back to the native birds, killing up to 60,000 each year. In the 1980s，traps and dogs were used to catch the cats. The last Macquarie Island cat was caught in 2000.
仍然不受控制
it作形式宾语
to do不定式为真正宾语
with复合宾语结构作状语
让步状语从句
从······下降到······
结果
分词短语作状语
被用来做······
Paragraph 4
But as the saying goes, “While the cat’s away, the mice will play.” With the departure of the cats from the island, the mouse and rat population started to increase. And remember those 10,000 or so rabbits It turned out that they developed an immunity to the virus, and their numbers exploded once again. Then, in 2006, the rabbits’ digging caused some land to collapse, and killed a substantial number of penguins. This incident made it clear that the rat, mouse and rabbit problem needed solving once and for all.
正如谚语所说
山中无老虎，猴子称大王
with复合宾语结构作状语
结果，证明
主语从句
大量的
形式宾语
宾语从句
sth. need doing某事需要被做
Paragraph 5
So, I am here on Macquarie Island to participate in the programme to tackle this very problem. The first step involved poison
being dropped from helicopters. The next step is to remove the last remnaining invading species, and that’s where I come in—with my dogs. They have been trained to find every last one, without harming the native animals. This intervention is a long, much-delayed ending to a sad story, but we humans owe it to the island to give it a happy ending.
参加，参与
目的状语
后置定语
现在分词作前置定语
表语从句
应该为······做······
相当于all
Paragraph 6
Please design a poster to call on the students in your school to protect our living conditions. In the poster you are required to list 10 practical dos and don’ts.
Homework
Small action, but big chaos！
Protect the nature, and keep ecological balance！(共20张PPT)
Using language—Grammar
Unit 5　A delicate world
Grammar—It as an empty object.(重点难点)
Learning Objective
语法感悟
一
阅读以下短文，找出含有形式宾语it的句子。
Learning that you feel it difficult for you to get along with your new classmates in the new school，I am writing to offer you some practical suggestions.I think it a waste of time waiting for others to make friends with you.Never should we take it for granted that others will always be active and optimistic.I consider it useful to take part in after-class activities so that you can find friends with similar interests.Besides，everyone likes it when you can generously help them whenever your new classmates are in trouble.
答案　Learning that you feel it difficult for you to get along with...
I think it a waste of time waiting for others...
Never should we take it for granted that others will always be...
I consider it useful to take part in...
Besides，everyone likes it when you are generously help them...
语法精讲
二
1.动词＋it＋形容词/名词＋(for/of sb)＋to do/that...
We make it a rule to visit the old every weekend.
我们规定每个周末都去看望那些老人们。
I don’t feel it difficult for me to tackle the problem.
我觉得解决这个问题并不难。
They considered it vital that they should keep their natural habitat.
他们认为保持它们的自然栖息地很重要。
2.动词＋it＋no good/no use/useless/a waste of time/worthwhile＋doing...
I’ll make it worthwhile telling me about his secret.
告诉我他的秘密，我会酬谢你的。
He thought it no use trying to multiply their number.
他认为企图增加它们的数量没有用。
3.动词appreciate/hate/love/like/dislike后面接if 或when引导的从句作宾语时，中间需用形式宾语it，构成“appreciate/hate/love/like/dislike＋it＋if/when从句”。
He will appreciate it if they assist him to tackle the difficult problem.
如果他们帮他解决这个难题，他将非常感激。
She hated it when he bragged that he was the most influential man in the district.
她讨厌他吹嘘自己是这个地区最有影响力的人。
4.一些“动词＋介词”构成的短语，如depend on，rely on，see to，stick to，take...for granted，owe...to sb/sth等后接that 从句时，须用it作形式宾语。
Would you see to it that she gets home early
你负责保证她早点到家，好吗？
You can’t depend on it that he will keep his promise that he will mount the top of the mountain.
你不能指望他会遵守他要登上山顶的诺言。
He owes it to his comrade’s help that he has made great progress in English.
他把在英语方面取得的巨大进步归功于朋友的帮助。
达标检测
三
Ⅰ.单句语法填空
1.We think it no use (argue) with him.
2.Many people think it necessary (learn) English.
3.We took for granted that they would accept the proposal，so we think it no use convincing them eagerly.
4.You must depend on it we can contact your relatives in case anything occurs.
arguing
to learn
it
that
5.Technology makes possible that millions more people have been able to experience a digital version of the world-famous painting.
6.Most advanced countries will find more and more difficult to keep up with the demand for change.
7.She made it her duty (look) after all the other people’s affairs in that town.
it
it
to look
8.We owe it to you we all passed the exam successfully.
9.He thinks important for us to try to do some housework after school.
10.I think best that you should stay here and wait for his return.
that
it
it
Ⅱ.根据汉语提示补全句子
1.I without full understanding.
我认为没有充分的理解，阅读是没有用的。
2.It’s really noisy outside.I you raise your voice in order to make yourself heard in the back.
外面真的很吵。如果你能提高声音以便后面的人能听到你的话，我将不胜感激。
believe it no use reading
would appreciate it if
3.I you would stay with us for 3 weeks.
我把你会与我们一起待三周认为是理所当然的事。
4.We to move the big stone.
我们觉得移动那块大石头是不可能的。
5.I people talk about me behind my back.
我讨厌人们在背后议论我。
6.I find it interesting .我觉得学习英语很有趣。
took it for granted that
feel it impossible
hate it when
to learn English
7.I we drink plenty of water every day.
我认为我们每天喝足够的水是必要的。
8.Why don’t you you are too ill to continue to work
为什么你不让他注意到你病得太严重了以至于不能继续工作了呢？
think it necessary that
bring it to his attention that
Ⅲ.语段填空
I think 1. important to protect the environment.But some people take it for granted 2. the resources are endless，which has caused great harm to nature.Other people feel 3. urgent 4.___
(protect) the environment and save resources.Therefore，we should see to 5. that effective measures should be taken to prevent pollution.At last，I think 6. our duty to protect the earth.
it
that
it
protect
it
it
to(共12张PPT)
Using language—Listening
Unit 5　A delicate world
1.Get the main idea of the listening material;
2.Understand the relationships between different species and the importance of ecological balance.
Look at the diagram and answer the questions.
5
1. What does the diagram show
2. What are the relationships between the living things
The diagram shows a food chain—the connection between the living things.
The living things are closely connected with each other by the food they eat.
Secondary consumers prey on primary consumers, primary consumers feed on producers, and producers absorb light from the sun, and water and dissolved nutrients from the soil, which are provided by decomposers.
In a woodland ecosystem, trees and other plants are producers. They 1._______ water, and take in nutrients from the soil and energy from the sun. Insects are an example of a primary consumer. They 2. _______ the producers to provide food for them, and are 3. _______ by secondary consumers: small mammals and birds. They 4. _______ the primary consumers. Worms, fungi and bacteria are decomposers. They
5. __________ animal waste and the remains of living things. The chemicals these decomposers 6. ________ fertilise the soil and give the plants the nutrients they need to grow.
absorb
rely on
fed on
prey on
break down
release
6
Complete the speech with the correct form of the words and expressions in Activity 5.
One of the oldest species in the ecosystem, the honey bee has been in existence for millions of years.
A honey bee can fly as fast as 24 kilometres per hour and its wings can beat 200 times per second.
In just one journey to collect pollen and nectar,
one single honey bee can pollinate as many as
50 to 100 flowers.
7
Listen to the conversation and choose the true statements.
1 Bees are very important to our food supply because they provide honey.
2 The bee population is declining.
3 Without bees, humans would die out.
4 All human crops depend on bees for pollination.
5 If bees became extinct, other insects could pollinate enough crops.
6 Humans are responsible for the decline in the bee population.
√
√
√
8
Listen again and complete the flow chart.
A combination of things damages bee habitats, mainly 1.____________________________.
pesticides and climate change
The bee population is 2.______________________. According to statistics, bee numbers in the US 3.___________________ in just one year.
declining very quickly
have fallen by 17%
Without bees, crops would 4.___________________.
5._____________ would not be able to compensate for the loss of bees, because 6.__________________________________________of the species of crops.
be unable to reproduce
Other insects
bees are responsible for pollinating about 70%
Animals that live on the crops 7._______________.
Humans have nothing to eat and die out.
would die out
Expressing doubt Responding to doubt
You must be kidding! Are you sure about...
I don’t believe it! Check it out for yourself...
It’s a fact! According to statistics...
Don’t forget that…
You must be kidding!
I don’t believe it!
Are you sure about ...
It’s a fact!
Don’t forget that…
Check it out for yourself... According to statistics...
9
Complete the boxes with the expressions from the conversation.
Meg: Hey Ollie, have you heard that the bee population is declining
Ollie: No, I haven’t. But, thinking about it, I hardly ever see bees these days. When I was little, they seemed to be everywhere!
Meg: If bees die out, humans will die out too.
Ollie: What ! You must be kidding! I don’t believe it!
Meg: It’s a fact!! I watched a nature documentary all about it the other evening. Bees are very important to our food supply.
Ollie: How can that be possible Humans won’t die out just because there’s no honey!
Meg: Bees don’t just make honey. Don’t forget that bees are also responsible for pollinating plants. Without them, crops would be unable to reproduce.
Ollie: But surely there are other ways of getting these crops to reproduce. Does it have to be bees
Meg: Well, there are other insects that pollinate plants, but it’s unlikely that they would be able to fully compensate for the loss of bees. Bees are responsible for pollinating about 70% of the species of crops.
Listening materials
Ollie: Are you sure about that data It sounds rather exaggerated.
Meg: Watch the documentary and check it out for yourself if you don’t believe me. Without bees, numerous plant species would die out. Animals that live on the crops would die out, and we wouldn’t have enough to eat.
Ollie: Seriously That’s scary! But looking on the bright side, there are millions and millions of bees. They’re not going to die out any time soon.
Meg: I’m afraid you’re wrong. The bee population is declining very quickly. According to statistics, bee numbers in the US have fallen by 17% in just one year.
Ollie: Gosh! What caused that
Meg: A combination of things, really, but it’s mainly due to damage to their habitats caused by pesticides and climate change.
Ollie: So human activity is the main cause
Meg: That’s right.
Ollie: Well, in that case, we’d better do something before it’s too late.
Work in pairs. Talk about what would happen to the ecosystem if another species died out. Use the words and expressions in this section.
10(共24张PPT)
Vocabulary & Starting out
Unit 5　A delicate world
1. Learn the new words of Unit 5.
2. Learn about the diversity of the Earth’s ecosystems and the interdependence of all living things.
3. Consider the impact of human activities on ecosystems.
Activity 1　Read the words after listening.
1. dramatically
2. heritage
3. habitat
4. subsequently
5. multiply
6. conservation
7. virus
adv. 显著地
n. 遗产；传统
n. 栖息地
adv. 后来，随后
v. （使）大大增加，（使）倍增
n. 保护
n. 病毒
Activity 2　Say the meaning of the following words and then read them together loudly.
8. decrease
9. trap
10. departure
11. explode
12. incident
13. intervention
14. owe
15. ecology
v. （使）变小，（使）减少
n. 夹子，陷阱
n. 离开
v. 突然增加
n. 事件
n. 干预，介入
v. 应该做；对……负有……的义务
n. 生态
Activity 2　Say the meaning of the following words and then read them together loudly.
parison
17. visual
18. rare
19. biological
20. apparently
21. vast
22. secure
23. greeting
n. 比较
adj. 视觉的
adj. 稀有的，罕见的
adj. 生物的，与生物有关的
adv. 据说；看来，似乎
adj. 巨大的；广大的
adj. 稳固的；安全的
n. 问候，招呼
Activity 2　Say the meaning of the following words and then read them together loudly.
1.dramatically adv. 显著地→dramatic adj. 显著的，剧烈的
2.conservation n. 保护→conserve vt.保存；保护
3.departure n. 离开→depart v. 离开，出发
4.explode v. 突然增加→explosion n. 爆炸，爆发
5.comparison n. 比较→compare v. 比较，对比
6.rare adj. 稀有的，罕见的→rarely adv. 难得，罕有地
7.apparently adv. 据说；看来，似乎→apparent adj. 显然的，表面上的
8.endangered adj. 濒临灭绝的→endanger vt. 危及，使遭到危险→danger n.危险
9.greeting n. 问候，招呼→greet vt.欢迎，迎接
Activity 3　Learn other forms of some words.
1.Entering a supermarket, I was warmly________ by the greengrocer. His cheery__________ made me feel at home. (greet)
2. A bomb_________ in the pit（坑）. The ___________ was heard a mile away. (explode)
3. Do you know of any other__________ animals Why are they in ________ (danger)
4. If you ________ the buildings between London and New York, you can see the tallest buildings in London are smaller in __________ with the skyscrapers in New York. (compare)
greeted
greetings
exploded
explosion
endangered
danger
compare
comparison
Activity 4　Fill in the blanks with the correct form of the words in brackets.
1.___________________未能做某事
2.___________________与……协调，与……和睦
3.___________________对……产生食欲
4.___________________失去控制，无法管理
5.___________________使……从……消失
6.___________________代表
7.___________________结果
8.___________________原来是，证明是，结果是
9.___________________与……共存
10.__________________作为回报
fail to do sth.
in harmony with
develop an appetite for
out of control
remove...from...
on behalf of
in consequence
turn out
coexist with
in return
Activity 5　Learn some phrases.
1.A truck went ________________ and crashed into the back of a bus．
2.The competition ____________ to be a great success.
3.I was lucky enough to speak at the opening ceremony ___________our class．
4. Human life is regarded as part of nature and the only way for us to survive is to live _________________ nature.
out of control
on behalf of
in harmony with
turned out
Activity 6　Fill in the blanks with the phrases above.
Before you watch
　What is happening in the pictures
Activity 1: Watch the video and answer the questions.
While you watch
1. Are humans part of Earth’s ecosystems Why
Yes. Humans are part of Earth’s ecosystems. Because all the living things live in ecosystems and people are living things.
1. Are humans part of Earth’s ecosystems Why
2. Describe the wooden puzzle game.
The whole thing represents an ___________. The woods stand for ________, including _______ who fit all together and ___________ each other to live. If a species go ______，it will disappear from the ecosystem. Losing few of them ______ cause too much trouble.
But losing too many will make the __________ rickety(摇晃的)．Humans have to manage the ecosystem extremely _________. If not, it will _____ and there won’t be any place for human beings.
ecosystem
species
humans
extinct
will not
depend on
2. Describe the wooden puzzle game.
ecosystem
carefully
fall
Activity 2: Watch and think.
In what ways can humans affect ecosystems
Humans can affect ecosystems in __________________ ways. For example, to have a positive influence on ecosystems, people can _____________________________
____________ etc. However,_________________________ _________________________ affect ecosystems in a negative way.
positive and negative
plant trees, feed and protect animals,
deforestation, air and water
recycle things,
In what ways can humans affect ecosystems
pollution and excessive waste
Satellite Images of Aral Sea, Central Asia
1.What is happening to the area according to the satellite images
Aral Sea is becoming ______ and ______.
smaller
smaller
After you watch
Task 1　Look and Answer
2. What do you think a later satellite image would show
3.What do you think caused these changes
Connected Together
Between where I am standing and wherever you are sitting, there are millions of different 1._____(type) of plants and animals, millions of different species, all living together in the environment, in something we call an ecosystem. Now in order for an ecosystem to be successful, in order for it to be healthy, it has to have different kinds of plants and animals—lots of different kinds of plants and animals...something we call “biodiversity”. Now biodiversity sounds kind of complicated. But if you listen, it also 2._______(sound) kind of nice.
This is the Earth, our world. All the living things that we know of live here, and they live in ecosystems, places like tundras, taigas, savannahs, grasslands, prairies, deserts, steppes, intertidal zones, subtidal zones, continental shelves, deep ocean zones, estuaries, deciduous forests, temperate rain forests, tropical rain forests, Artic ice packs, wetlands, marine mud flats and cities.
sounds
types
Task 2　Complete the passage and read it carefully
That’s a lot of environments but there are a lot of living things 3._____(fill)
them up. The Earth’s environments are just crowded with life. Living things take hold everywhere they can.
Here’s an insect 4._____(live) right on top of blades of grass. It’s a living thing that lives on other living things. See, environments always have living parts and non- living parts. Some animals live on top of plants, some animals live in the water, some plants grow on rocks. It’s all part of the ecosystem.
Nearly three -quarters of the world’s surface is covered 5.____ water. So most of the world’s living things live here, just one ecosystem after another. Now as near as we can tell, all the living things depend on other living things. So the more different kinds of living things in an ecosystem, the 6.______________(success)it is. We call this “biodiversity”—different kinds of life.
living
with
to fill
more successful
We can think of an ecosystem as this wooden puzzle game. See all the different species They all fit together and they depend on each other to live. And you know, once in a while a species will go extinct, it’ll disappear from the ecosystem. You can see how you can lose...a few of those without too much trouble. But if you start to lose too many, the whole thing becomes...becomes a little...rickety. Now, 7._______ do people fit in Oh, they fit in just about everywhere. Just about anywhere you can walk, you’ll find people living because people are living things and they are part of the ecosystem. So when we go to manage 8.___ecosystem, we have to be careful about how things fit together or there won’t be a place for us. We have to be very careful...9.__________(extreme) careful.
Now this hasn’t happened yet, but it could.
Ecosystems are a little bit like this game of sticks. You can’t take one stick out without disturbing most of the other ones. The things that live in ecosystems depend on each other. They 10.____________( connected). It’s kind of cool！
extremely
where
an
are connected(共31张PPT)
Writing
Unit 5　A delicate world
1.Understand the drafting of a lecture.(重点难点)
2.Learn how to draft a lecture.
3.Practice writing one.(重点难点)
Learning Objectives
细读文本
一
Activity 1　Read for some details.
Read the passage on P78 and choose the best answer.
1.Why is Fanjing Mountain so significant
A.Because it represents one of China’s great achievements in
environmental protection.
B.Because it is in Guizhou Province.
C.Because of the number of UNESCO sites.
D.Because it’s a must in China.
√
2.Which is the main reason for its inclusion
A.Its biological diversity.
B.50 endangered plant and animal species.
C.The land which was protected.
D.It’s a nature reserve.
√
3.Which statement is TRUE according to the passage
A.The reserve has gained popularity all over the world.
B.It’s a summer resort with breathtaking scenery.
C.It’s renowned for the mountain with animals.
D.It represents China’s greatest achievements.
√
Introduction of the topic A 1.“ ” for anyone visiting Guizhou Province，Fanjing Mountain has now been added to the UNESCO World Heritage List，bringing the total number of UNESCO sites in China to 2.____.
Reasons for selection The main reason for its inclusion is its 3.__________
_________.
Activity 2　Read for the structures.
Read the passage on P78 again and fill in the blanks.
53
biological
diversity
must
Other information It is renowned for its 4. as a summer resort.
breathtaking scenery
Activity 3　Read for some good sentences.
1.Please find out the sentence that is used to introduce the topic.
答案　If you haven’t already heard of Fanjing Mountain，you soon will!
2.Please find out the sentence that shows biological diversity.
答案　The main reason for its inclusion is its biological diversity，with approximately 50 endangered plant and animal species found in its protected area.
3.Please find out the sentences that are used to show other information about Fanjing Mountain.
答案　One of the first national nature reserves in China，Fanjing Mountain represents one of the country’s greatest achievements in environmental protection.
It is also renowned for its breathtaking scenery as a summer resort.
技法指导
二
本单元的写作任务是写发言稿。发言稿是在公共场合向一群人宣告某件事情的文稿，可以分为欢迎辞、欢送辞、演讲稿等形式。
【常用表达】
1.开头部分
I’m more than glad/honored to be here to give you a lecture on...
我很高兴/荣幸能在这里给大家做一场关于……的演讲。
It’s my pleasure to give a lecture on behalf of...
我很荣幸代表……做演讲。
I would like to introduce ...to you.
我想向大家介绍一下……
2.主体部分
The topic of my speech today is “Thoughts on environment”.
我今天演讲的主题是“对环境的思考”。
The climate there is very mild and can make you feel very relaxed and comfortable.
那里的气候非常温和，可以让你感到非常放松和舒适。
It is famous for its beautiful scenery and long history.
它以美丽的风景和悠久的历史而闻名。
It’s rich in natural resources such as coal and gold，and has mild climate.
它有着丰富的煤和黄金等自然资源，而且气候温和。
3.结尾部分
You’re welcome to pay a visit to...
欢迎你来参观……
I think you will have a good time in...
我想你会在……玩得很开心。
Thanks for listening/for your attention.
感谢你们的聆听/关注。
分步演练
三
请根据以下要点写一篇发言稿，介绍梵净山：
1.梵净山位于贵州省铜仁市，海拔约2 570米，是中国西南部武陵山脉的最高峰。
2.梵净山保护区成立于1978年，是我国在环境保护方面取得的最伟大成就之一。
3.梵净山因其丰富的生物多样性于2018年被联合国教科文组织列入世界遗产名录。
4.在这里可以找到的濒危动物包括中国大鲵、森林麝和灰塌鼻猴。
5.站在梵净山的顶峰，可以欣赏无与伦比的风景。
注意：1.词数80左右；
2.可适当增加细节，以使行文连贯；
3.题目和开头已给出，不计入总词数。
第一步　审题谋篇
第二步　遣词造句
【核心词汇】(含本单元词汇)
1.位于 _____________
2.建立 __________
3.代表 ___________________
4.环境保护 _______________________
5.由于 _________
6.把……添加到……上 _________
be located in
establish
represent/stand for
environmental protection
owing to
add...to...
7.濒临灭绝的 ____________
8.物种；品种 ________
9.喜欢 ___________________
10.无与伦比 __________________
endangered
species
have an appetite for
beyond compare
【连词成句】(含本单元句型)
1.我敢保证，你再也找不到比梵净山更吸引人的地方了。
I guarantee that nowhere else _____________________________ than Fanjing Mountain.
2.梵净山位于贵州省铜仁市，海拔约2 570米，是中国西南部武陵山脉的最高峰。
Fanjing Mountain which Tongren，Guizhou Province with an elevation of about 2,570 meters is the highest peak of the Wuling Mountain range in the south-west of China.
can you find a more attractive place
is located in
3.梵净山保护区成立于1978年，是我国在环境保护方面取得的最伟大成就之一。
The Fanjingshan Reserve which _____________________________
___________ one of the country’s greatest achievements in _______________________.
4.梵净山因其丰富的生物多样性于2018年被联合国教科文组织列入世界遗产名录。
，Fanjing Mountain ___________
the UNESCO World Heritage List in 2018.
was established in 1978 represents/
stands for
environmental protection
Owing to the rich biodiversity
was added to
5.在这里可以找到的濒危动物包括中国大鲵、森林麝和灰塌鼻猴。
include the Chinese giant salamander，forest musk deer and grey snub-nosed monkey.
6.当你站在梵净山的顶峰时，你一定会喜欢这无与伦比的风景。
While you are standing on the peak of Fanjing Mountain，you are certain to .
Endangered animal species that can be found here
have an appetite for the scenery which is beyond compare
第三步　句式升级
1.用过去分词短语作定语改写句2
_________________________________________________________________________________ is the highest peak of the Wuling Mountain range in the southwest of China.
2.用过去分词短语作定语改写句3
The Fanjingshan Reserve __________________________________
______________________________________________________________________________________________________________.
Fanjing Mountain located in Tongren，Guizhou Province with an
elevation of about 2,570 meters
established in 1978 represents/stands for
one of the country’s greatest achievements in environmental
protection
3.用状语从句的省略改写句6
______________________________________________________________________________________________________________
While standing on the peak of Fanjing Mountain，you are certain
to have an appetite for the scenery which is beyond compare.
第四步　组句成篇
用适当的过渡词语，把以上词汇和句式，再加上联想内容，组成一篇英语短文。
【参考范文】
The Wonders of Fanjing Mountain
Good afternoon，everyone! ___________________________
__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
I am more than delighted to be here to give a short speech.
I guarantee that nowhere else can you find a more attractive place than Fanjing Mountain.Fanjing Mountain located in Tongren，Guizhou Province with an elevation of about 2,570 meters is the highest peak of the Wuling Mountain range in the southwest of China.
__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
_____________________________________________________________________________________________________________________________________________________________________
The Fanjingshan Reserve established in 1978 represents one of the country’s greatest achievements in environmental protection.Owing to the rich biodiversity，Fanjing Mountain was added to the UNESCO World Heritage List in 2018.Endangered animal species that can be found here include the Chinese giant salamander，forest musk deer and grey snub-nosed monkey.Besides，while standing on the peak of Fanjing Mountain，you are certain to have an appetite for the scenery which is beyond compare.
______________________________________________________________________________________________________________
Thank you for listening！Now，does anyone have any questions？

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