资源简介

(共17张PPT)
Unit 5 Amazing nature
单元学习目标
单元内容导览
单元主题：Amazing nature
主题导入 Starting out 导入单元主题
主题理解 Understanding ideas 主题阅读 Reading 课文“Colours of my hometown”
语法学习 Grammar 比较级和最高级
单元主题：Amazing nature
主题拓展 Developing ideas 听说运用 Listening and speaking 听 音标/s/、/z/、/θ/、/ /；一则自然历史博物馆的新展览广告
说 描述一种自然界中奇妙的生物
读写训练 Reading for writing 读 课文“Natural wonders crying aloud for help”
写 一篇关于另一个正在呼救的自然奇观的短文
主题实践 Presenting ideas 制作一张关于一个自然奇观的海报
单元写作训练
目 录
CONTENTS
02
书面表达
01
写作赏析
写作赏析
【写作主题】本单元的话题是“神奇的大自然”，要求学生学会运用本单元所学知识及语法(比较级和最高级)写一篇描写一个自然奇观的文章。
【范文赏析】
The Yangtze River is the longest river in Asia and it's also the third longest river in the world. It is about 6,300 kilometres long. It starts from Qinghai Province and goes into the Pacific Ocean. There are many kinds of fishes in the river and some of them are endangered species. (长江的基本情况)
However, now its water becomes dirty and it has fewer and fewer fish. (面临的问题) We should try our best to protect it because it is very important to China. We should stop putting rubbish and pouring waste water into it. (保护措施)
I hope the Yangtze River will become more and more beautiful. (表达希望)
体裁：____________ 人称：_______________
时态：_____________________________________
佳词佳句积累：
1. 起源于 ______________________
2. 汇入 _______________________
3. 濒危物种 ____________________________
4. 尽某人全力做某事 ____________________________________
5. 停止做某事 _______________________
6. 把……倒入…… _______________________
说明文
第一人称、第三人称
一般现在时
start from
go into
endangered species
try one's best to do sth.
stop doing sth.
pour … into …
7. 废水 ____________________________
8. 长江是亚洲最长的河流，也是世界上第三长的河流。______________________________________________________________
______________________________________________________________
9. 我们应该尽全力保护它，因为它对中国非常重要。
______________________________________________________________
______________________________________________________________
waste water
The Yangtze River is the longest river in Asia and it's also the third longest river in the world.
We should try our best to protect it because it is very important to China.
写作提升：使用所给短语并参考其在范文中的句子，根据中文提示，翻译句子。
1. 你可以在这片森林里看到一些濒危物种。(endangered species)
______________________________________________________________
2. 人们应该停止在这个湖里捕鱼。(stop doing sth.)
______________________________________________________________
You can see some endangered species in this forest.
People should stop fishing in this lake.
书面表达
写作创新·根据导图写作 黄河是中华民族的母亲河。保护黄河是事关中华民族伟大复兴和永续发展的千秋大计。你校英文报拟发布保护黄河的倡议书。请你根据以下思维导图的提示，用英文写一篇文章，介绍黄河并倡导大家共护母亲河。
参考词汇：水土流失 water and soil loss制定法律 make laws
注意：(1)可在思维导图内容提示的基础上适当拓展信息。
(2)不能照抄原文；不得在作文中出现真实校名和学生的真实姓名。
(3)语句连贯，词数60左右。作文的开头和结尾已经给出，不计入总词数。
【巧列提纲】(以下 部分仅供参考，希望同学们可以多开动脑筋、发散思维)
【实战演练】
Dear students,
____________________________________________________________________________________________________________________________
______________________________________________________________
______________________________________________________________
______________________________________________________________
______________________________________________________________
______________________________________________________________
The Yellow River is known as China's “mother river”. It's 5,464 kilometres long. It is the second longest river in China and runs through many cities.
However, the Yellow River is in a difficult situation. The water and soil loss is very serious.The water pollution is also a big problem. So it's important for us to protect it.
____________________________________________________________________________________________________________________________
______________________________________________________________
______________________________________________________________
______________________________________________________________
Let's work together and protect our beautiful mother river!
The School English Newspaper
First of all, our government must make laws to protect our mother river. Secondly, people should stop fishing. Thirdly, we should never throw rubbish into the river.
【写作评价】（评分原则与方法可参考本书最后一页）
分项 自评分 互评分 老师评分
内容分 黄河的基本信息(2分)
黄河的现状(2分)
保护措施(2分)
语言分(9分)
总分(15分)
THANKS!(共45张PPT)
Unit 5 Amazing nature
单元学习目标
单元内容导览
单元主题：Amazing nature
主题导入 Starting out 导入单元主题
主题理解 Understanding ideas 主题阅读 Reading 课文“Colours of my hometown”
语法学习 Grammar 比较级和最高级
单元主题：Amazing nature
主题拓展 Developing ideas 听说运用 Listening and speaking 听 音标/s/、/z/、/θ/、/ /；一则自然历史博物馆的新展览广告
说 描述一种自然界中奇妙的生物
读写训练 Reading for writing 读 课文“Natural wonders crying aloud for help”
写 一篇关于另一个正在呼救的自然奇观的短文
主题实践 Presenting ideas 制作一张关于一个自然奇观的海报
Starting out & Reading（教材P67~P70）
目 录
CONTENTS
02
课前预习
03
语篇理解
04
名师点拨
05
能力提升
01
学习目标
学习目标
读懂文章，发现身边的自然美；能够描述自己家乡的色彩美。
课前预习
核心单词
名词
advise
核心单词
名词 1. 高原 ________________
2. 云 ________________
3. 天，天空 ________________
4. 草原 ________________
5. 田地，田野 _________________
6. 饭店，餐馆 ________________
7. 礼物，赠品 ________________
8. 日记，日志 ________________
plateau
cloud
sky
grassland
field
restaurant
present
diary
核心单词
动词 9. 表达；表示；表现 _________________
10. 描述，描写 _________________
形容词 11. 柔软的 _________________
12. 镇静的，沉着的；心平气和的 _________________
13. 很少，不多 _________________
14. 更好的，较好的 _________________
15. 自豪的，得意的 _________________
副词 16. 最 ________________
17. 明亮地 _________________
介词 18. 在（……）上方 _________________
19. 比 _________________
express
describe
soft
calm
few
better
proud
most
brightly
above
than
20. 自然奇观 _________________
21. 因……出名 _________________
22. 充满 _________________
23. 在大自然中 _________________
24. 映入眼帘 _________________
25. 周围；到处 _________________
常考短语
natural wonder
be famous for
be full of
in nature
meet one's eyes
all around
26. 贯穿于某事物之中 _________________________
27. 在某人心里 ___________________________
28. 对做某事而感到骄傲 ___________________________
29. ……之一 ______________________________
run through sth.
in one's heart
be proud to do sth.
one of
30. 它因拥有世界上最高的山脉而闻名。
It is famous for ____________________________ mountain.
31. 但这个地区也充满了大自然中最令人惊叹的色彩。
But this area is also full of ________________________ colours in nature.
32. 天空那可爱的蓝色总给我一种平静的感觉。
The lovely blue of the sky always __________________________.
典型句子
the world's highest
the most amazing
gives me a calm feeling
33. 高原比大城市更安静。
The plateau _________________________ the big cities.
34. 我为自己来自世界上最美丽的地方之一而感到骄傲。
I'm proud to say that I'm from _________________________
_________________________ in the world.
is quieter than
one of the most
beautiful places
语篇理解
【知识背景】
自然景观指自然界中未经人为改造或干预而形成的、具有独特审美价值的自然景色。这些景色由大地、山川、湖泊、森林、草原等自然元素构成，以其特有的形态和风貌展现出无穷的魅力。
青藏高原，这一世界著名的自然景观，横跨西藏自治区、青海省等地，以其雄伟的姿态被誉为“世界屋脊”。其地形复杂，雪山巍峨，草原广袤，生态系统独特。自然环境寒冷干燥，日照充足，昼夜温差大，冰川与湖泊点缀其间，成为长江、黄河等大江大河的生命之源，展现了自然之奇美与壮丽。
【课文探究】
一、阅读教材P68~P69的课文，选出下列各题的最佳选项
( )1. What is the Qinghai-Tibet Plateau famous for
A. The world's biggest forest.
B. The world's longest river.
C. The world's highest building.
D. The world's highest mountain.
D
( )2. How are the clouds on the plateau according to the passage
A. White, clean and soft. B. Grey, soft and high.
C. White, clean and light. D. Grey, low and heavy.
( )3. What is the writer's favourite colour
A. White. B. Blue. C. Green. D. Black.
A
C
二、阅读教材P68~P69的课文，回答下列问题
1. What are the mountains like when they shine brightly in the sun
______________________________________________________________
______________________________________________________________
2. How does the writer feel when seeing the lovely blue of the sky
______________________________________________________________
3. Why does green mean hope
______________________________________________________________
The mountains / They are like white sea waves. / White sea waves.
The writer feels calm. / Calm.
Because green / it is the colour of life.
三、阅读教材P68~P69的课文，完成短文填空
请从方框内选择适当的词，并根据需要用其正确形式填空，使文章语法正确、完整连贯。注意：每空一词，每词仅用一次，有两词为多余项。
above quiet cloud I express wind calm most under high mean though
My hometown, the Qinghai-Tibet Plateau, is an amazing place. It is famous for the world’s 1__________ mountain. It is also full of the 2__________ amazing colours in nature.
The white, clean and soft 3__________ will catch your eyes firstly. They are like white sheep. And the mountains are like white lotus flowers under the sun.
highest
above quiet cloud I express wind calm most under high mean though
most
clouds
The lovely blue of the sky always makes me feel 4__________. It is like a great sea 5__________ the plateau. The rivers and lakes are full of different kinds of blue. No words can 6__________ my love for them.
Our grasslands, forests and fields are all green. It’s 7__________ favourite colour. Green 8__________ hope because it’s the colour of life. There are also green trains running through the plateau now.
calm
above quiet cloud I express wind calm most under high mean though
above
express
my
means
The plateau is 9__________ than the big cities. 10__________ we have fewer shops and restaurants, we have the best presents from nature. In my heart, my hometown is the best place in the world. I’m proud that I come from one of the most beautiful places in the world.
above quiet cloud I express wind calm most under high mean though
quieter
Though
1. __________ 2. __________
3. __________ 4. __________
5. __________ 6. __________
7. __________ 8. __________
9. __________ 10. _________
highest
most
clouds
calm
above
express
my
means
quieter
Though
课外技法专练
名师点拨
be famous for的用法
一
It is famous for the world's highest mountain. 它因拥有世界上最高的山脉而闻名。(教材P68)
be famous for意为“因……出名”，强调某人或某物因为特定的原因而被广泛熟知，后接名词或动词-ing形式。如：
He is famous for his great works. 他因伟大的作品而闻名。
France is famous for its wine.法国以葡萄酒闻名。
The local cafe is famous for serving the best coffee in town. 这家当地咖啡馆以供应镇上最好的咖啡而闻名。
【辨析】 be famous as意为“作为……而出名”，强调某人或某物以某种身份或特点而被广泛熟知。
She is famous as an actress.她作为一名演员而出名。
( )1. Sanya is famous its beautiful beaches.
A. of B. for C. as
( )2. He is famous a singer.
A. for B. to C. as
B
根据汉语意思完成句子，每空一词
专练
C
above，on与over的区别
二
It is like a great sea above the plateau. 它就像高原上的大海。(教材P68)
比较项 词性及词义 用法 举例
above prep.在(……)上方 表示某物的位置高于另一个物 体，但不一定在垂直正上方， 其反义词是below The plane is flying above theclouds.飞机正在云层上方飞行。
on prep.在……上面 指某物接触另一个物体的表面 或构成物体表面的一部分 There is a book on the desk.书桌上有一本书。
over prep.在……上方 多指某物在另一个物体的正上 方，两者不接触，强调垂直关 系，其反义词是under The lamp is right over our heads.灯就在我们头顶上方。
1. He put up his hand __________ his head.
2. There is a bridge __________ the river.
3. There is a big blackboard __________ the front wall in the classroom.
above
用above, on或over 填空
专练
over
on
express的用法
三
And words can't express my love for the rivers and lakes. 语言无法表达我对河流和湖泊的热爱。(教材P68)
Bill is not afraid to express his opinions. 比尔并不害怕表达自己的观点。
Teenagers often have difficulty expressing themselves. 青少年在表达自己的思想情感方面常常有困难。
I decided to go to the meeting as an expression of support. 我决定去参加会议以示支持。
1. He wrote Lucy a poem as an _______________ （express） of his love. （用所给单词的适当形式填空）
2. 他可以清晰地表达自己的想法。（根据汉语意思完成句子，每空一词）
He can __________ __________ __________________________ clearly.
expression
专练
express
his
views / opinions / ideas
few的用法
四
We have fewer shops and restaurants. 我们的商店和餐馆较少。(教材P69)
The problem is very difficult, and few people know the answer. 这个问题很难，很少有人知道答案。
The problem is very difficult, but a few people know the answer. 这个问题很难，但有些人知道答案。
Unfortunately, I had little money on me. 很不巧，我身上没带什么钱。
Fortunately, I had a little money on me. 幸好我身上带着一点钱。
( )1. He has ______ friends, so he always feels lonely.
A. few B. a few C. little
( )2. Don't worry. There are still ______ minutes left.
A. few B. a few C. a little
( )3. There is ______ food in the fridge. Let's buy some at the supermarket.
A. few B. little C. a few
A
专练
B
B
describe的用法
五
What three colours will you use to describe your hometown 你会用哪三种颜色来描述你的家乡呢 (教材P70)
Can you describe him to me 你能向我描述一下他的样子吗？
Eriksson described him as“the best player on the pitch”. 埃里克森称他是“场上最好的球员”。
The book gives a description of each place. 这本书对每一个地方都作了介绍。
( )1. The girl saw the thief (小偷) yesterday, so the police asked her to ______ the man.
A. express B. explore
C. notice D. describe
2. Write a ______________________ （describe）of your favourite beach. （根据汉语意思完成句子，每空一词）
D
根据汉语意思完成句子，每空一词
专练
description
一、用方框内所给单词的适当形式填空，有两词为多余项
能力提升
than express field above soft sky diary present brightly proud cloud calm
1. I want to get a nice __________ carpet (地毯) for the bedroom.
2. At the party, we will give _____________ to each other.
3. Keeping _____________ is really a good way to improve your writing.
soft
presents
diaries
4. The weather is hot in summer. The sun shines __________.
5. The sheep are eating grass in the __________.
6. A few white __________ drifted （飘）across the sky.
7. We were really _____________ that we cooked all the delicious dishes by ourselves.
than express field above soft sky diary present brightly proud cloud calm
brightly
field
clouds
proud
8. A large bird flew __________ Mike. Then he saw the bird flying away.
9. These trees are much taller __________ they were three years ago.
10. Words can't __________ how happy I am.
than express field above soft sky diary present brightly proud cloud calm
above
than
express
二、阅读理解
配对阅读。左栏是对五种动物的描述，右栏是七条信息，请为每种动物匹配对应的信息，并将其字母编号填写在题号前的括号内。
A. Some farmers usually get help from them in the fields. So they can act as a great helper for farmers.
B. They are black and white. They usually eat a special kind of bamboo in Sichuan.
C. They are friendly to people. They usually eat some other ocean animals.
D. Most of the people in Western countries see them as popular pets. People usually go to have a walk with them after work.
E. They eat some other animals. They are very strong and can fly high in the sky.
F. They live in the forest in southern China. They eat some other animals in the forest. They are fierce （凶猛的）. They are often active at night.
G. They are furry (毛茸茸的) enough to keep out in the cold areas. They are all white and only live in the North Pole.
( )11. Pandas are lovely animals and they mainly live in China. They always live on the ground in damp（潮湿的）, cold weather.
( )12. People can find South China Tigers in the south of China and some countries nearby.
( )13. Polar bears mainly live near the North Pole（北极）. It's cold there and the ground is mostly covered in ice.
B
F
G
( )14. Dogs are cute animals. We can see them almost everywhere in the world.
( )15. Dolphins usually live in the oceans. They swim by moving their tails.
D
C
THANKS!(共24张PPT)
Unit 5 Amazing nature
单元学习目标
单元内容导览
单元主题：Amazing nature
主题导入 Starting out 导入单元主题
主题理解 Understanding ideas 主题阅读 Reading 课文“Colours of my hometown”
语法学习 Grammar 比较级和最高级
单元主题：Amazing nature
主题拓展 Developing ideas 听说运用 Listening and speaking 听 音标/s/、/z/、/θ/、/ /；一则自然历史博物馆的新展览广告
说 描述一种自然界中奇妙的生物
读写训练 Reading for writing 读 课文“Natural wonders crying aloud for help”
写 一篇关于另一个正在呼救的自然奇观的短文
主题实践 Presenting ideas 制作一张关于一个自然奇观的海报
Listening and speaking （教材P73~P75）
目 录
CONTENTS
02
课前预习
03
名师点拨
05
能力提升
01
学习目标
04
口语无忧
学习目标
掌握音标/s/、/z/、/θ/、/ /的发音及例词；能够描述自然界中奇妙的生物及掌握礼貌打断他人的话的交际用语。
课前预习
核心单词
名词 1. 展览(会) _________________
2. 肺鱼 _________________
3. 肺 _________________
4. 科学家 _________________
5. 陆地 _________________
动词 6. （使）成长，（使）发展 _________________
exhibition
lungfish
lung
scientist
land
develop
7. 自然历史博物馆 ______________________________________
8. 世界各地 ______________________________
9. 在旱季 ______________________________
10. 在雨季 ______________________________
11. 很久以前 ______________________________
12. 在陆地上 ______________________________
常考短语
natural history museum
all over the world
in the dry season
in the rainy season
long ago
on the land
13. 对不起，你能更详细地解释一下吗？
Sorry, but __________________________________ about it
典型句子
could you explain more
课外技法专练
名师点拨
one作代词的用法
一
The National Natural History Museum of China, the American Museum of Natural History, and the Natural History Museum in London are among the most famous ones in the world. 中国国家自然历史博物馆、美国自然历史博物馆和伦敦自然历史博物馆都是世界上最著名的
博物馆。(教材P73)
one作代词时，表示“（同一群人或物中）一个”。one用来指代单数可数名词，既可以指人，也可以指物。当one单独使用时，通常表示泛指；如要表示特指时，可以使用“a / an / the+形容词+one”的结构，也可以在one前面加this，that，the等限定词。指代复数名词时，要用ones。如：
I'd like an ice cream. Would you like one, too 我想买份冰激凌。你也要一份吗
This apple is small. Please give me a big one. 这个苹果太小了。请给我一个大的。
I don't like the green apples. Give me the red ones. 我不喜欢绿苹果。给我红色的。
( )1. The red apples are the sweetest ______ in the market.
A. one B. ones C. the one
2. 我丢失了我的钢笔，所以我想买一支新的。(根据汉语意思完成句子，每空一词)
I lost my pen，so I want to buy ______ ______ __________.
B
专练
a
new
one
develop的用法
二
People developed from fish. 人类是从鱼进化而来的。(教材P75)
It developed from a small seed to a big tree. 它从一颗小种子长成了一棵大树。
This is the latest development of science. 这是科学的新发展。
1. Doctors think too much pressure (压力) is not good for children's ________________________ (develop). （用所给单词的适当形式填空）
2. 这个地方由一个小村庄发展成为一个大城市。（根据汉语意思完成句子，每空一词）
This place ___________________ __________ a small village __________ a big city.
development
专练
developed
from
into
口语无忧
一、语音梳理
摩擦音/s/、/z/、/θ/、/ /
【读一读】
Be swift to hear, slow to speak.
His house is about the same size as ours.
They will stick together through thick and thin.
This is smoother than that.
二、口语特训
如何描述自然界中奇妙的生物及礼貌地打断他人的话
自然界中存在着许多奇妙的生物，主要包括植物、动物和微生物三大类。它们以各种独特的方式适应环境，展现出惊人的生存能力和奇特的生理特征。通过探索这些奇妙的生物，不仅可以提高我们的观察能力和认知能力，还可以激发我们对生命和生活更加深刻的思考。现在，让我们一起围绕“如何描述自然界中奇妙的生物及礼貌地打断他人的话”这一话题展开口语练习吧！
描述自然界中奇妙的生物 礼貌地打断他人的话
… is an amazing animal. One surprising thing about … is … Actually, it can … Did you know that … It is a kind of … Usually it lives in … People can see it in / on … Sorry, but could you explain …
May I ask something
Excuse me. Why …
Sorry to interrupt, but …
Excuse me, could you explain …
Sorry for the interruption, but could you …
能力提升
一、选出每组单词中画线部分发音不同的一项
(　 　)1. A. mother B. thank C. thirty D. think
(　 　)2. A. stay B. singer C. saying D. rise
(　 　)3. A. some B. seldom C. lazy D. nurse
(　 　)4. A. tooth B. then C. them D. these
(　 　)5. A. zoo B. amazing C. swim D. zero
A
D
C
A
C
二、口语训练
(一)信息获取（根据教材P74的听力，口头回答问题）
1. When will the exhibition start？
______________________________________________________________
2. How much is the ticket for the exhibition
______________________________________________________________
It will start on 1 April. / On 1 April.
It's five pounds. / Five pounds.
(二)信息转述（根据教材P75的听力，转述听力内容）
你的转述可以这样开始：Lungfish are from __________________
______________________________________________________________
______________________________________________________________
______________________________________________________________
______________________________________________________________
______________________________________________________________
______________________________________________________________
Africa. They have lungs and can breathe air. In the dry season, they go into the wet earth and sleep. And in the rainy season, they go back into the water. Scientists study lungfish's bodies and behaviour. They believe people developed from fish. Long ago, some fish left the sea. They grew lungs and walked on the land. Lungfish are like those fish.
THANKS!(共45张PPT)
Unit 5 Amazing nature
单元学习目标
单元内容导览
单元主题：Amazing nature
主题导入 Starting out 导入单元主题
主题理解 Understanding ideas 主题阅读 Reading 课文“Colours of my hometown”
语法学习 Grammar 比较级和最高级
单元主题：Amazing nature
主题拓展 Developing ideas 听说运用 Listening and speaking 听 音标/s/、/z/、/θ/、/ /；一则自然历史博物馆的新展览广告
说 描述一种自然界中奇妙的生物
读写训练 Reading for writing 读 课文“Natural wonders crying aloud for help”
写 一篇关于另一个正在呼救的自然奇观的短文
主题实践 Presenting ideas 制作一张关于一个自然奇观的海报
Reading for writing （教材P76~P79）
目 录
CONTENTS
02
课前预习
03
语篇理解
04
名师点拨
05
能力提升
01
学习目标
学习目标
读懂文章，了解一些正在消失的自然奇观，培养保护大自然的意识。
课前预习
核心单词
名词 1. 表面，面 ________________
2. 水平高度；相对高度 ________________
3. 蛇 ________________
4. 木头；木材，木料 ________________
5. 冰川 ________________
6. 气候 ________________
surface
level
snake
wood
glacier
climate
核心单词
动词 7. 消失，不复存在 ________________
8. 躺，平卧 ________________
9. 流，流动 ________________
10. 暗示，暗指 ________________
11. 消失，不见 ________________
die
lie
flow
suggest
disappear
核心单词
形容词 12. 咸的，含盐的 ________________
13. 唯一的，仅有的 __________________
副词 14. 出声地 __________________
15. 然而，不过，但是 __________________
连词 16. 假若，要是，如果 __________________
限定词 17. 不那么多，更(较)少 __________________
salty
only
aloud
however
if
less
18. 呼救 ______________________
19. 事实上 ______________________
20. 躺在……上 ______________________
21. 流入 ______________________
22. 太多 ______________________
23. 水位 ______________________
24. 下降；下跌 ______________________
25. 年复一年 ______________________
常考短语
cry for help
in fact
lie on
flow into
too much
water level
go down
year by year
26. 干涸；耗尽，枯竭 _________________
27. 正如某人的名字所示 ________________________
28. 像，诸如，例如 ________________________
29. 砍倒 ________________________
30. 为……让出空间 ________________________
31. 气候变化 ________________________
32. 变成；转变 ________________________
dry up
as one's name suggests
such as
cut down
make space for
climate change
turn into
33. 我变得一年比一年小了。
I ____________________________ year by year.
34. 少抽些水吧，不然用不了一百年我就干涸了。
______________________________, or I'll dry up within the next 100 years.
35. 这是一片冰雪覆盖的土地。
It's a land __________ ice and snow.
36. 200年前，这里大约有150座冰川。
____________________________, there were about 150 glaciers.
典型句子
am becoming smaller
Take less water
full of
Two hundred years ago
语篇理解
【知识背景】
自然奇观消失的主要原因包括气候变化、人类活动和地质变化等。全球变暖和气候变化是导致许多自然奇观消失的主要原因之一。例如，南北极的冰川融化速度加快，威胁着全球生态系统。人类活动对自然环境的破坏也是自然奇观消失的重要原因。亚马孙雨林的过度开发、死海的过度利用等，都导致了这些地方的生态环境恶化。这些自然奇观的消失不仅对生态环境造成严重影响，也对人类文化和历史遗产构成威胁。
【课文探究】
一、阅读教材P76~P77的课文，选出下列各题的最佳选项
( )1. What is the Dead Sea
A. A sea. B. A river. C. A lake. D. An ocean.
( )2. Why the rainforest of Madagascar is disappearing
A. Because people are cutting down its trees.
B. Because there is less rainfall.
C. Because many animals run away.
D. Because the trees are sick.
C
A
( )3. How many glaciers were there 200 years ago
A. About 25.
B. About 80.
C. About 150.
D. About 250.
C
二、阅读教材P76~P77的课文，回答下列问题
1. Why can people lie on the Dead Sea
______________________________________________________________
2. What does the rainforest make for its plants and animals
______________________________________________________________
______________________________________________________________
3. What is the glacier turning into
______________________________________________________________
Because the Dead Sea / it is saltier than any sea.
The rainforest / It makes rain for its plants and animals. / Rain.
The glacier / It is turning into Waterworld. / Waterworld.
三、阅读教材P76~P77的课文，完成短文填空
请从方框内选择适当的词，并根据需要用其正确形式填空，使文章语法正确、完整连贯。注意：每空一词，每词仅用一次，有两词为多余项。
as because lie they level suggest wood full disappear aloud be dry
Three natural wonders are crying for help.
The Dead Sea has got many plants and animals. People can 1__________ on it because it’s saltier than any sea. Rivers flow into it. But now, people take too much water from the rivers, so the water 2__________ of the Dead Sea is going down. It’s becoming smaller and smaller year by year. It will 3__________ up within the next 100 years if people don’t stop taking too much water.
as because lie they level suggest wood full disappear aloud be dry
lie
level
dry
The rainforest of Madagascar makes rain for plants and animals, such 4__________ monkeys, snakes and many kinds of flowers. For most of them, the rainforest is 5__________ only home. However, people are cutting down its trees for 6__________ and to make space for farming. So the rainforest is 7________________.
as because lie they level suggest wood full disappear aloud be dry
as
their
wood
disappearing
A glacier at the Glacier National Park in America is asking for help, too. It’s a land 8__________ of ice and snow. Two hundred years ago, there 9__________ about 150 glaciers. But there are around 25 now 10_________ of climate change. The glacier is turning from Frozen into Waterworld!
as because lie they level suggest wood full disappear aloud be dry
full
were
because
1. __________ 2. __________
3. __________ 4. __________
5. __________ 6. __________
7. _______________ 8. __________
9. __________ 10. __________
lie
level
as
dry
their
wood
disappearing
full
were
because
课外技法专练
名师点拨
lie的用法
一
I'm saltier than any sea, so people can lie on my surface. 我比任何海都咸，所以人们可以躺在我的湖面上。(教材P76)
lie作动词，意为“躺，平卧”，过去式为lay，现在分词为lying。常见搭配：lie in / on 躺在……，lie down 躺下。如：
She saw a man lying on the ground. 她看见一个男人躺在地上。
He lay down on the bed. 他躺在床上。
1. They __________ (lie) down under the stars and talked about their dreams.(用所给单词的适当形式填空)
2. 那只狗正躺在地板上。(根据汉语意思完成句子，每空一词)
The dog __________ __________ __________ the floor.
lay
专练
is
lying
on
suggest的用法
二
As my name suggests, I make rain for my plants and animals, such as monkeys, snakes and
many kinds of flowers. 正如我的名字所示，我为我的植物和动物制造雨水，比如猴子、蛇和各种花朵。(教材P77)
词性及词义 用 法 举 例
v.暗示， 暗指 suggest sth.暗示某事 suggest+that从句暗示 …… Are you suggesting(that) I'm lazy 你言下之意是说我懒
v.建议； 提议 suggest sth. (to sb.)向某人提议某物 suggest doing sth.建议做某事 I suggested going in my car.我提议坐我的车去。
( )1. Her yawn（哈欠） ______ that she is sleepy.
A. suggests B. invites
C. discovers D. describes
2. 琼建议问问她父亲的看法。（根据汉语意思完成句子，每空一词）
Joan ______________________________ __________ her father for his opinion.
A
专练
suggests / suggested
asking
such as与for example的区别
三
As my name suggests, I make rain for my plants and animals, such as monkeys, snakes and
many kinds of flowers. 正如我的名字所示，我为我的植物和动物制造雨水，比如猴子、蛇和各种花朵。(教材P77)
比较项 含义及用法 举 例
such as 意为“比如”,后面接所列举的事物，用于列举同类人或事物中的几个例子 The shop has lots of fruit,such as apples,
bananas and oranges.这个商店有许多水果，比如苹果、香蕉和橘子。
for example 意为“例如”,一般以同类人或事物中的“一个”为例，常以句子形式进行举例，作插入语，用号与后面的内容 隔开，可置于句首、句中或句末 For example,he is a good student.=He,for
example,is a good student.=He is a good
student,for example.例如，他是一个好学生。
1. Every country has its capital.______________________, Beijing is the capital of China.
2. She can speak several languages （语言）, __________ English and Chinese.
For example
用such as或for example填空
专练
such as
cut down的用法
四
However, people are cutting down my trees for wood and to make space for farming. 然而，人们为了木材和为了给农业腾出空间而砍伐我的树木。(教材P77)
cut down意为“砍倒”，用于表示将树木或其他物体砍倒。如：
We can't cut down so many trees. 我们不能砍倒那么多树。
【拓展】与cut相关的短语：
cut up 切碎
cut off 切除
cut sth.into sth. 把某物切成某物
cut out 删除；删去
cut in 插嘴；插队
( )1. Please ______ the vegetables with a knife. I want to make salad.
A. cut down B. cut up C. cut off D. cut out
( )2. Don't ______ the trees because they are home to many birds.
A. cut up B. cut out C. cut off D. cut down
B
专练
D
disappear的用法
五
The rocket disappeared into the sky. 火箭消失在天空中。
Stars may appear in the sky. 星星可能会出现在天空中。
I'm disappearing. 我正在消失。(教材P77)
专练
1. The black car drove away from them and _______________ (appear).（用所给单词的适当形式填空）
2. 月亮消失在了云后面。（根据汉语意思完成句子，每空一词）
The moon ____________________ ________________ a cloud.
disappeared
disappeared
behind
turn into的用法
六
I'm turning into Waterworld! 我正在变成《未来水世界》。(教材P77)
turn into 意为“变成；转变”，与change into同义。turn into 还可以分开使用，turn … into … 意为“把……变成……；使……变成……”。如：
The sunny morning turned into a rainy day. 晴朗的早晨变成了雨天。
Can you turn an egg into a flower 你能把一个鸡蛋变成一朵花吗？
【拓展】与turn相关的短语：
turn up 调高
turn down 调低; 拒绝
turn on 打开
turn off 关掉
turn around 转身
turn in 上交
turn to 转向；翻到(某页)；求助于
( )1. There was a river in front of the house, but now it ______ farmland.
A. turns on B. turns in
C. turns up D. turns into
( )2. Please ______ the tap （水龙头） when you brush your teeth.
A. turn down B. turn off
C. turn on D. turn up
D
专练
B
一、根据汉语意思完成句子，每空一词
1. 它们的数量在逐年下降。
The number of them is dropping __________ __________ __________.
2. 事实上，我对那场表演不感兴趣。
__________ __________, I'm not interested in that show.
3. 我们在手机上花费了太多的时间。
We spent__________ __________ time on the phones.
能力提升
year
by
year
In
fact
too
much
4. 如果你加热冰，它会慢慢变成水。
If you heat the ice, it slowly__________ __________ water.
5. 正如它们的名字所示，这些画是用糖做的。
__________ __________ __________ __________, the paintings are made from sugar.
turns
into
As
their
name
suggests
二、小语篇专练(短文填空)
请从方框内选择适当的词，并根据需要用其正确形式填空，使文章语法正确、完整连贯。注意：每空一词，每词仅用一次，有两词为多余项。
fact wood suggest little level about disappear
Are you interested in learning about people and places of different countries You can learn that by studying geography. When we hear the word “geography”, we talk 6_________ mountains, rivers and maps. But in 7_________, geography is about the world around us. If people live in a place for a long time, they want to change it.
fact wood suggest little level about disappear
about
fact
These people cut down lots of trees and use the 8________ to build their houses. So there is 9__________ land for the forests. Some farmland 10___________ and a town becomes a small city. Soon, people develop small cities around the big city. Finally, these cities become a big area with a lot of people.
fact wood suggest little level about disappear
wood
less
disappears
These changes are not good. We should use our knowledge of geography to maintain （维持） ecological balance (生态平衡)，or the world will become worse and worse.
fact wood suggest little level about disappear
6. __________
7. _________
8. __________
9. __________
10. ________________
about
fact
wood
less
disappears
THANKS!(共27张PPT)
Unit 5 Amazing nature
单元学习目标
单元内容导览
单元主题：Amazing nature
主题导入 Starting out 导入单元主题
主题理解 Understanding ideas 主题阅读 Reading 课文“Colours of my hometown”
语法学习 Grammar 比较级和最高级
单元主题：Amazing nature
主题拓展 Developing ideas 听说运用 Listening and speaking 听 音标/s/、/z/、/θ/、/ /；一则自然历史博物馆的新展览广告
说 描述一种自然界中奇妙的生物
读写训练 Reading for writing 读 课文“Natural wonders crying aloud for help”
写 一篇关于另一个正在呼救的自然奇观的短文
主题实践 Presenting ideas 制作一张关于一个自然奇观的海报
Grammar （教材P71~P72）
目 录
CONTENTS
02
课前预习
03
名师点拨
04
能力提升
01
学习目标
学习目标
学会用比较级和最高级描述一处自然景观。
课前预习
核心单词
名词 1. 海潮，潮汐
2. 米，公尺
tide
metre
3. 黄河 ____
4. 长江 ____
5. 10米高 ____
常考短语
the Yellow River
the Yangtze River
ten metres high
6. 黄河比长江短。
The Yellow River the Yangtze River.
7. 泰山很高。峨眉山更高。珠穆朗玛峰最高。
Mount Taishan is . Mount Emei is . Mount Qomolangma is the ____.
典型句子
is shorter than
high
higher
highest
课外技法专练
名师点拨
形容词、副词的比较级和最高级
一
1. 定义
比较级就是将二者进行比较产生的词形，是由形容词和副词的原级转化而来。相对二者的比较，还有三者及以上的比较，这时就产生了最高级。
2. 形容词、副词的比较级和最高级的规则变化
规 则 举 例
一般情况下，比较级在词尾直接加-er，最高级加-est small→smaller→smallest
clean→cleaner→cleanest
hard→harder→hardest
fast→faster→fastest
以不发音的字母e结尾的词，在词尾加-r构成比较级，在词尾加-st构成最高级 nice→nicer→nicest
wise→wiser→wisest
late→later→latest
以“辅音字母+y”结尾的双音节词，先变y为i,再分别加-er， -est构成比较级和最高级 happy→happier→happiest
easy→easier→easiest
early→earlier→earliest
规 则 举 例
以一个辅音字母结尾的重读闭音节词，双写辅音字母，再分别加-er, -est构成比较级和最高级 big→bigger→biggest
hot→hotter→hottest
fat→fatter→fattest
thin→thinner→thinnest
多音节词和部分双音节词，以及带有前缀或后缀的词，分别在词前加more, most构成比较级和最高级 tired→more tired→most tired
carefully→more carefully→most carefully
3. 形容词、副词的比较级和最高级的不规则变化
原级 比较级 最高级
good,well better best
bad/ill,badly worse worst
many,much more most
little less least
far farther/further farthest/furthest
4. 比较级的用法
(1)比较级的常见标志词为than，意为“比”。如：
In Jim's opinion, he is cleverer than his younger brother. 在吉姆看来，他比他的弟弟聪明。
(2)比较级前可用a bit, a little, much, far, a lot, even等词来修饰，表示程度。如：
China is much larger than Japan. 中国比日本要大得多。
(3)“比较级+and+比较级”或“more and more+多音节形容词原级”，意为“越来越……”。如：
Our country is becoming stronger and stronger . 我们的国家变得越来越强大。
Chinese is becoming more and more important . 中文变得越来越重要了。
(4)“the+比较级，the+比较级”，意为“越……越……”。如：
The more careful you are, the fewer mistakes you will make. 你越细心，你犯的错误就会越少。
(5)“比较级+than+any other+单数可数名词”意为“比任何其他都……”，有最高级的含义。如：
Lucy is taller than any other student in her class. 露西比她班上的其他任何一个学生都高。
【注意】比较对象应为同类。如:
错误： Your classroom is smaller than us .
正确： Your classroom is smaller than ours . (ours=our classroom) 你们的教室比我们的小。
5.最高级的用法
(1)形容词的最高级前通常加定冠词the，但当最高级前已有名词所有格或物主代词时，则可省略the;而副词的最高级前则可省略the。如：
She is my best friend. 她是我最好的朋友。
We can have the best service in this restaurant and sit (the) most comfortably here. 在这家餐馆我们可以享受最好的服务，而且坐得最舒服。
(2)最高级指三者或三者以上的比较，所以句中通常包括范围词in(一般接表示单位或场所的名词)，of / among(一般接表示一群人或事物的代词或名词)。如：
The Great Wall is the longest wall in the world. 长城是世界上最长的城墙。
Tom is the tallest boy of the five boys. 汤姆是五个男生中最高的。
(3)“one of the+形容词最高级+名词复数”意为“最……之一”，此时谓语动词要用单数形式。如：
One of the oldest houses is 300 years old. 其中最古老的房子之一有300年的历史。
( )1. —How about your life now
—It is ______ than a year ago.
A. colourful B. more colourful
C. the most colourful
( )2. Of the four seasons, the ______ time to come to Beijing is in autumn.
A. good B. better C. best
B
专练
C
3. 用所给单词的适当形式填空。
（1）The __________（old）I get, the __________ （strong）I seem to feel.
（2）He is one of______________________(young) engineers in the company.
（3）It is __________(easy) for a 10-year-old child to sweep the floor than to cook.
(4)I work hard this term, but Peter works much __________ (hard).
(5)Tina is the winner of the long jump. She jumps __________________ (far) in her school.
older
stronger
the youngest
easier
harder
(the) farthest
长、宽、高的英文表达方式
二
Many tides are two metres high. 许多潮汐有两米高。(教材P71)
在英语中，我们可以用“基数词+表示度量的单位名词(如metre，kilometre)+形容词(long / wide / high / tall)”的结构来描述物体的长、宽、高。如：
The desk is three metres long. 这张桌子3米长。
The room is five metres wide. 这个房间5米宽。
The building is sixty metres high. 这栋楼60米高。
1. 这个盒子1米宽。
The box is __________ __________ __________.
2. 这座塔200米高。
This tower is __________ __________ __________.
one / 1
根据汉语意思完成句子，每空一词
专练
metre
wide
200
metres
high
一、根据要求改写句子，每空一词
1. Larry is older than any other boy in his class. (改为同义句)
Larry is __________ __________ boy in his class.
2. John gets up early. But Kate gets up earlier.(合并为一句)
Kate gets up __________ __________ John.
3. Taking a bus is usually cheaper than taking a taxi. (改为同义句)
Taking a taxi is usually __________ _____________ than taking a bus.
能力提升
the
oldest
earlier
than
more
expensive
4. My favourite subject is science. (改为同义句)
I like science __________ than any other __________.
5. Miss Li is popular in our class. Mr Wang is more popular. (合并为一句)
Mr Wang __________ __________ __________ than Miss Li in our class.
better
subject
is
more
popular
二、小语篇专练(语法选择)
There are three noodle houses near our school. They are Xu's, Zhang's and Wang's noodle houses. There are some differences among them. Xu's noodle house is _____6_____, only 8 yuan per bowl. Wang's noodle house is _____7_____ than the other two noodle houses.
( )6. A. cheap B. cheaper C. the cheapest
( )7. A. expensive B. more expensive
C. much expensive
C
B
But its noodles taste the best. And its waiters are much friendlier than the other two. But the service in Zhang's is _____8_____ in three of them. So I don't recommend (推荐) you to go there _____9_____ meals. As for me, I love Wang's best _____10_____ I just need to pay a little more money for a better taste and a more comfortable experience.
( )8. A. bad B. worse C. the worst
( )9. A. have B. to have C. having
( )10. A. because B. when C. although
C
B
A
THANKS!

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