资源简介

(共76张PPT)
外研版 选择性必修第二册
unit 2 Improving yourself
Period 3
Developing ideas & Presenting ideas
金句背诵
1.Everyone throws paper and rubbish; Everyone picks paper and it's spotless.
人人丢纸，垃圾一片；人人拣纸，一尘不染。
2.Relying on scientific and technological progress to promote environmental protection.
依靠科技进步促进环境保护。
词汇积累
①pleasure n．[C]乐事，快事
②on behalf of代表
③association [ s si'eI n] n.
[C]协会，社团，联盟
④make it获得成功
⑤stretch [stret ] vi.延伸，绵延
⑥legendary['led ndri]adj.传说的，传奇的
⑦be named after...以……命名
⑧capture the imagination启发想象力
capture vt.引起(注意、想象、兴趣)
⑨meet criteria符合标准
criterion[kraI'tI ri n]n.[C](pl.criteria)标准，准则
⑩rare locations罕见的地方
rare[re ]adj.稀有的，罕见的
rarely adv.罕有，很少，不常
biological processes生物过程
biological [ baI 'l d Ik( )l]adj.生物的，与生物有关的
biology n．[U]生物学；生理
biologist n．[C]生物学家
apparently[ 'p r ntli]adv.据说；看来，似乎
apparent adj.显而易见，明白易懂，显然
rise vi.[熟词生义]凸起，隆起
the vast range巨大的变动范围
vast [vɑ st] adj.巨大的；广大的
range n．(变动或浮动的)范围，界限，区间
altitude[' ltItju d]n.[C，usually sing.]海拔(高度)
variation[ ve ri'eI ( )n]n.[C，U]差异；变化
climatic conditions气候条件
climatic changes气候变化
climatic[klaI'm tIk]adj.与某一地区气候有关的
conditions n．[pl.](影响某事发生的)物质环境，状态，条件
a variety of各种各样的
variety n．[sing.](同一事物的)不同种类，多种式样
slide n．[C]幻灯片
a slide show 幻灯放映
[文化采风]
神农架
　　神农架林区是湖北省直辖林区，地处湖北省西北部，1970年经国务院批准建制，是中国唯一以“林区”命名的行政区。
　　神农架是中国首个获得联合国教科文组织人与生物圈自然保护区、世界地质公园、世界遗产三大保护制度共同录入的“三冠王”名录遗产地。2016年，神农架被列入《世界遗产名录》，成为湖北省第1处、中国第11处世界自然遗产。2018年9月，神农架荣获“中国天然氧吧”称号。
WHY SHENNONGJIA
　　Good morning, everyone. It is my great pleasure① to give a lecture here on behalf of② the Be at One with Nature Association③.
　　[1]As we know, in 2016, Shennongjia made it④ onto the UNESCO World Heritage List. But there are so many important places not yet on this list. So you might ask: why Shennongjia [2]Is it its forests that stretch⑤ on and on like great green seas？Is it the legendary⑥ father of Chinese herbal medicine, Shennong, after whom the park is named⑦ ？Or is it the mysterious creature called“Yeren” (wild man) that has captured the imagination⑧ of the world
[1]此处是as引导的非限制性定语从句，意为“众所周知”。
[2]本句用来回答why Shennongjia这个问题。that在此引导定语从
句，并在从句中作主语，修饰先行词its forests。
　　UNESCO awarded Shennongjia this status because it meets two criteria⑨ [3]required by the list．It contains a naturally balanced environment that allows the many and various species to live and prosper. [4]It is also one of the rare locations⑩ 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.
[3]此处是过去分词短语作后置定语，修饰two criteria。
[4]本句是主从复合句。where在此引导定语从句，修饰先行词one of the rare locations，该定语从句中又包含了一个that引导的定语从句,修饰先行词the ecological and biological processes。在that引导的定语从句中，又包含了一个as引导的时间状语从句。
　　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.
　　For the second criterion, we can see that Shennongjia has incredible biodiversity. 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.
　　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 their efforts, the monkey's population has doubled since the 1980s. Their number reached over 1，300 in 2015 and continues to grow.
　　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. 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.
　　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？
为何选择神农架？
　　大家上午好。我很荣幸在这里代表融入自然协会做演讲。
　　众所周知，神农架在2016年成功进入联合国教科文组织《世界遗产名录》。但是还有许多重要的地方不在这个名录上。因此你可能会问：为什么选择神农架？是因为它那绵延不绝的像广阔的碧海一样的森林吗？是因为它是以传说中的“中草药之父”——神农命名的吗？或是因为被称为“野人”并激发全世界想象的神秘生物吗？
　　联合国教科文组织授予神农架这样的地位，是因为它符合该名录要求的两个标准。它包含一个自然平衡的环境，这使得许多不同的物种可以生存和繁衍；它也是世界上罕见的科学家可以在那里实时观察动植物成长和进化时的生态和生物过程的地方之一。
　　就第一个标准而言，神农架据说是世界上最“完整”的自然区域之一。该地区高出海平面约400米到3 000多米，因此它被称为“华中屋脊”。海拔高度的巨大范围导致当地的气候条件千差万别，这使得种类繁多的物种得以茁壮成长。一些动植物已经存活了数百万年，被视为活化石。
　　就第二个标准而言，我们可以看到，神农架有着令人难以置信的生物多样性。请看这张幻灯片。根据官方统计数据，这里有3 000多种植物已经纳入记载，这相当于中国丰富植物资源总数的10%以上。神农架生活着600多种脊椎动物，包括川金丝猴和云豹。此外，大约有4 300种昆虫已经纳入了记载。
　　照料如此多的物种是个挑战。在冬天，科学家们要冒着大雪和经受冰冻的温度，为川金丝猴提供食物。多亏了他们的努力，自20世纪80年代以来，川金丝猴的数量翻了一番。2015年，它们的数量达到1 300多只，并且还在继续增加。
　　但是神农架最令人印象深刻的方面是当地的人。他们从自然中获取资源，但不造成破坏。我曾走访当地一个以家庭自制蜂蜜而闻名的村庄。这种蜂蜜的特殊之处在于，它由中国最早的蜜蜂品种产出。每年春天，村民们在他们的房子周围放置蜂箱，来吸引森林中的野生蜜蜂。尽管由于外来物种的入侵，这些蜜蜂在中国其他地方濒临灭绝，但神农架的蜜蜂和当地人共存了几个世纪。村民们给蜜蜂提供安全的家园，收集它们的蜂蜜作为回报。这只是神农架的人与自然和谐相处的方式之一。
　　所有这些解释了神农架为什么能够进入联合国教科文组织《世界遗产名录》，这项荣誉实至名归；这也凸显了理解、意识和努力是如何增进对我们独特而精彩的自然世界的保护的。
　　谢谢大家的倾听。现在有人有什么问题吗？
Ⅰ.Match the main idea with each part.
Part 1 (Paras. 1－2)____　A．Other information about Shennongjia.
Part 2 (Paras. 3－5)____ B．Make a conclusion.
Part 3 (Paras. 6－7)____ C．Raise the question—why Shennongjia
Part 4 (Paras. 8－9)____ D．Reasons for selection.
答案：CDAB
Ⅱ.Read the text and choose the best answer to each question.
1．What's the main idea of the text
A．The history of Shennongjia.
B．Introduce the UNESCO World Heritage List.
C．Why Shennongjia made it onto the UNESCO World Heritage List.
D．The plants and animals in Shennongjia.
√
2．How does the author introduce the topic
A．By listing data. B．By asking questions.
C．By comparison. D．By quotation.
√
3．Which of the following is NOT true about Shennongjia
A.Shennongjia made it onto the UNESCO World Heritage List in 2016.
B．It contains a naturally balanced environment.
C．Shennongjia supports 3, 000 vertebrate species.
D．Some of the plants and animals have survived millions of years.
√
4．What can we infer from the text
A．Many species have disappeared.
B．Great efforts have been made by scientists and the natives．
C．Golden Soub nosed Monkey is in danger of dying out.
D．The bees are endangered because of the invasion of foreign species.
√
Ⅰ.核心词汇·练通
根据课文语境及汉语提示写出正确的单词
1．a short question and answer ________
一个简短的问答环节
2．award Shennongjia this _______
授予神农架这样的地位
session
status
3．the _____ range in altitude 海拔高度的巨大范围
4．a great __________ in climatic conditions
气候条件千差万别
5．although endangered __________ in China
尽管在中国其他地方濒临
灭绝
vast
variation
elsewhere
Ⅱ.拓展词汇·用活
根据提示写出相应的单词
1．___________ n．比较→compare v．比较
2．_______ adj.视觉的→vision n．视力；念头→visible adj.看得见的
3．___________ adj.神秘的→mystery n．奥秘；神秘
4．__________ n．标准，准则→criteria n．(pl.)标准，准则
5．_____ adj.稀有的，罕见的→rarely adv.罕有；很少；不常
comparison
visual
mysterious
criterion
rare
6．___________ adj.生物的，与生物有关的→biology n．生物学
7．___________ adv.据说；看来，似乎→apparent adj.显而易见的
8．___________ adj.濒临灭绝的→endanger v．危及；使……处于危险
9．_________ n．涌入→invade v．侵犯→invader n．侵略者
10．_______ adj.稳固的；安全的→security n．安全
11．_________ n．问候，招呼→greet v．欢迎；打招呼
biological
apparently
endangered
invasion
secure
greeting
Ⅲ.重点短语·再现
根据课文语境及汉语提示填入合适的短语
1．It is my great pleasure to give a lecture here _____________ (代表) the Be at One with Nature Association.
2．Is it its forests that stretch __________(持续地) like great green seas
on behalf of
on and on
3．It is also one of the rare locations in the world where scientists can observe _____________(即时地) the ecological and biological processes that occur as the plants and animals develop and evolve.
4．The vast range in altitude ___________(导致) a great variation in climatic conditions.
5．I visited a local village which _____________(因……而出名) its home made honey.
in real time
results in
is known for
6．Although endangered elsewhere in China due to the invasion of foreign species, the bees of Shennongjia have _______________(与……共存) the local people for centuries.
7．By providing the bees with a secure home, the villagers collect their honey __________(作为回报).
coexisted with
in return
Ⅳ.重点句型·呈现
根据课文语境及汉语提示补全句子
1．it作形式主语
__________________________________________(我很荣幸做演讲) here on behalf of the Be at One with Nature Association.
2．过去分词作后置定语
UNESCO awarded Shennongjia this status because it meets two criteria _____________________(该名录要求的).
It is my great pleasure to give a lecture
required by the list
3．where引导定语从句
It is also one of the rare locations in the world __________________________________________________________________________________(科学家可以在那里实时观察生态和生物过程) that occur as the plants and animals develop and evolve.
where scientists can observe in real time the ecological and biological processes
4．what引导主语从句
________________________________(这种蜂蜜的特殊之处) is that it is produced by the earliest species of Chinese bee.
5．way后接定语从句
This is just _________________________(方式之一) people of Shennongjia live and work in harmony with nature.
What is special about the honey
one of the ways in which
[词汇知识过关]
comparison　 n.比较
(教材P56)Data, examples and comparisons are then used to support the main ideas.
然后使用数据、示例和比较来支持主要观点。
(1)in comparison with 和……相比较
by comparison 相比之下
without/beyond comparison 无与伦比；举世无双
(2)compare vt. 比较；把……比作
vi. 相比
compared with/to 和……比起来，
与……相比
compare...with... 把……和……相比
compare...to... 把……比作……
①(2019·江苏卷)By comparison, the brains of apes require only 8% of rest time energy.
相比之下，类人猿在休息时，大脑只需要8%的能量。
②The height of the new building is without/beyond comparison in the world.
这座新大楼的高度在世界上是无与伦比的。
[练通]——单句语法填空
(1)Shakespeare compared the world ___ a stage.
(2)(2018·江苏卷)Children's __________ (compare) themselves to others online may lead to lower self identity and confidence.
(3)(2019·江苏卷)The first unique human characteristic is that humans have extraordinarily large brains _________ (compare) with other animals.
to
comparing
compared
[写美]——句式升级
(普通表达)If you compare Columbia with Charleston, you will find the former is a young city.
(4)(高级表达)___________________________，Columbia is a young city. (过去分词作状语)
(5)(高级表达)_____________________________________，you will find the former is a young city.(现在分词作状语)
(6)(高级表达)_______________________________，Columbia is a young city.(介词短语)
Compared with Charleston
Comparing Columbia with Charleston
In comparison with Charleston
on behalf of (＝on one's behalf)　 代表
(教材P56)It is my great pleasure to give a lecture here on behalf of the Be at One with Nature Association.
我很荣幸在这里代表融入自然协会做演讲。
represent v. 代表；象征；描绘
stand for 代表；象征
①(天津卷)On behalf of my school, I would like to express my feelings.
我谨代表我的学校表达我的感受。
②He was chosen to represent our school at the meeting.
他被选为我们学校的代表出席会议。
[练通]——单句语法填空
(1)The letter A can stand ____ several sounds in English.
(2)The educator can't be here today, so I'm going to speak ___ behalf of him.
for
on
[写美]——同义替换
(3)Representing 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.
On behalf of
rare　 adj.稀有的；罕见的
(教材P56)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.
它也是世界上罕见的科学家可以在那里实时观察动植物成长和进化时的生态和生物过程的地方之一。
(1)It is rare for sb.to do...　某人做……是罕见的。
(2)rarely adv. 很少；难得；极好地
①(2020·新高考全国卷Ⅰ)It's rare to hear someone say，“I wish that speaker had spoken longer.”
很少听到有人说，“我希望那个演讲者说得长一点。”
②I deal with customers on the phone and rarely meet them face to face.
我用电话和客户打交道，很少和他们见面。
[练通]——单句语法填空
(1)It is rare for her _________(speak) up in a crowd.
(2)I very _______(rare) wear a raincoat because I spend most of my time in a car.
[写美]——完成句子
(3)我们很少考虑它对环境和人类的影响。
______________________ how it all affects the environment and mankind.
to speak
rarely
Rarely do we think of
rarely作状语置于句首时，句子往往采用部分倒装结构。
greeting　 n.问候；招呼
(1)greet sb. with... 以……和某人打招呼
greet sb./sth. as... 某人/事被看作……
(2)greeting n. 问候；迎接
①He greeted me in the street with a friendly wave of the hand.
他在街上友好地向我挥手致意。
②She was greeted as a guest.
她被当作客人来受到欢迎。
[练通]——单句语法填空
(1)The good news ____________(greet) with great excitement among the faculty and staff.
(2)When he was sent back to his own country, he was greeted ___ a hero.
was greeted
as
[写美]——完成句子
(3)她一见到我就打招呼。
She ________________________________．
(4)让我们以更大的成就来庆贺新年。
Let's ________________________ greater achievements.
greets me whenever she meets me
greet the new year with
[经典句式过关]
way后接定语从句
(教材P57)This is just one of the ways in which people of Shennongjia live and work in harmony with nature.
这只是神农架的人与自然和谐相处的方式之一。
(1)way表示“方式、方法”时，其后常接in which或that引导的定语从句，也可以将in which或that省略掉， 此时that或in which在从句中作状语。
(2)way后接定语从句时，如果关系词在从句中作主语或宾语则用关系代词that/which，作宾语时还可以省略。
(3)way表示“方式、方法”时，其后还可接不定式或“of ＋doing sth.”的形式。
①I think you hurt his pride by laughing at the way that/in which he speaks English.
我认为你嘲笑他说英语的方式伤害了他的自尊心。
②(2020·全国卷Ⅱ)An easy way to bring all work generations together is with a chat platform.
将所有年龄的工作人员聚集在一起的一个简单方法就是使用一个聊天平台。
[练通]——单句语法填空
(1)The way ___ which we work has undergone a complete transformation in the past decade.
(2)The way ___________ was put forward at the meeting was impractical.
(3)(2018·全国卷Ⅲ)For many of them, it's a way ___ meeting people and having a social life.
in
that/which
of
[写美]——同义替换
(4)Can you show us the way to keep apples
→Can you show us the way ___________________
of keeping apples
Ⅰ.品句填词
1．What we need now is the _________(安全) of drinking water in habitats.
2．The museum displays more than just the _______(视觉的) delights of art.
3．If she marries a foreigner, will her _______(地位) as a British citizen be affected
security
visual
status
4．Urban development has led to the ruin of _____(巨大的) districts of the countryside.
5．In the last ________(阶段；时期) of the operation, she told me that she felt much better.
6．If you don't meet these _________(标准), you won't be cast as a lawyer in his latest movie.
vast
session
criteria
7．The survey found a wide __________(差别) in the prices charged for canteen food.
8．(2018·全国卷Ⅲ改编)The main reason for many people to leave Dawson was that they wanted to try their luck __________(在别处).
9．The car had ___________(明显地) hit a traffic sign before skidding out of control.
10．(2019·全国卷Ⅲ)We were first ________(迎接；问候) with the barking by a pack of dogs, seven to be exact.
variation
elsewhere
apparently
greeted
Ⅱ.选词填空
on behalf of, in return, be known for, in comparison with, a variety of
1．The department store carries _____________ leather shoes.
2．A train is slow ___________________ a plane.
3．The city _____________ its beautiful scenery, and it is also abundant in traveling resources.
a variety of
in comparison with
is known for
4．He's always ready to help others and asking for nothing __________．
5．_____________ our office staff, I wish to extend our warm to welcome to the friends who have come to visit the company.
in return
On behalf of
生如蝼蚁当立鸿鹄之志
命如纸薄应有不屈之心
谢谢
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