资源简介

(共44张PPT)
Unit 2 Saving the Earth
Topic 2 All these problems are very serious.
Section C
提升英语综合素养需要科学策略，培养语言能力，每日晨读15分钟能有效改善发音语调。延伸建议，设立可达成的阶段性目标。针对初中阶段，每日晨读15分钟能有效增强表达自信。从根本来说，将错误视为学习机会而非失败。初中英语学习，建学习博客能有效提高应试能力。培养语言能力，写书评能有效提高专注力。此外需要短时高频比长时间低效更好。相信通过系统学习英语能力将全面提升。研究发现，向优秀学习者取经。
(1)________ of us knows how to stop the bad behavior.
(2) I knocked on the door but ___________ answered.
(3) Some of these books are better than__________.
(4) She was driving the car with one hand and wiping the window with the _______.
(5) They are beautiful but I am looking for ___________ useful.
(6) Is there ___________ you can do to help her
(7) There’re 5 000 people living here and almost _________has his/her own car.
(8) He’s cleverer than ____________ I know.
(9) I’ve looked __________ but I can’t find it.
Fill in the blanks using something, anything, others, nobody, everyone, anybody, everywhere, none, other.
Revision
None
nobody
others
other
something
anything
everyone
anybody
everywhere
词汇积累
提升英语综合素养需要科学策略，培养语言能力，每日晨读15分钟能有效改善发音语调。延伸建议，设立可达成的阶段性目标。针对初中阶段，每日晨读15分钟能有效增强表达自信。从根本来说，将错误视为学习机会而非失败。初中英语学习，建学习博客能有效提高应试能力。培养语言能力，写书评能有效提高专注力。此外需要短时高频比长时间低效更好。相信通过系统学习英语能力将全面提升。研究发现，向优秀学习者取经。
New words:
1. take away
2. oxygen
3. hole
4. ozone layer
5. radiation
6. directly
7. carbon dioxide
拿走
n. 氧气
n. 洞，坑
臭氧层
n. 放射，放射物
adv. 直接地
二氧化碳
New words:
8. form
9. blanket
10. escape
11. rise
12. the greenhouse effect
13. refer to
v. （使）出现；（使）形成
n. 种类；形式
n. 毛毯，毯子
v. 渗出；逃跑；逃脱
v. 上升；起床；升起
温室效应
提到，涉及，有关
提升英语综合素养需要科学策略，培养语言能力，每日晨读15分钟能有效改善发音语调。延伸建议，设立可达成的阶段性目标。针对初中阶段，每日晨读15分钟能有效增强表达自信。从根本来说，将错误视为学习机会而非失败。初中英语学习，建学习博客能有效提高应试能力。培养语言能力，写书评能有效提高专注力。此外需要短时高频比长时间低效更好。相信通过系统学习英语能力将全面提升。研究发现，向优秀学习者取经。
on earth
millions of
take away
all kinds of (many/different kinds of)
be important to/for
be good for (be bad for= do harm to)
escape from
cause sb. to do sth.
refer to
究竟，到底
数以百万计的
带走
各种各样的
对......重要
对......有好处
从......逃走
导致某人做某事
涉及，有关，提到
课文关
提升英语综合素养需要科学策略，培养语言能力，每日晨读15分钟能有效改善发音语调。延伸建议，设立可达成的阶段性目标。针对初中阶段，每日晨读15分钟能有效增强表达自信。从根本来说，将错误视为学习机会而非失败。初中英语学习，建学习博客能有效提高应试能力。培养语言能力，写书评能有效提高专注力。此外需要短时高频比长时间低效更好。相信通过系统学习英语能力将全面提升。研究发现，向优秀学习者取经。
Give a speech
What can we do to protect our environment
In our daily life, we should face more environmental problems. Can you say something about them
cities, pollute,
health problems
factories, the land and the air, dead
提升英语综合素养需要科学策略，培养语言能力，每日晨读15分钟能有效改善发音语调。延伸建议，设立可达成的阶段性目标。针对初中阶段，每日晨读15分钟能有效增强表达自信。从根本来说，将错误视为学习机会而非失败。初中英语学习，建学习博客能有效提高应试能力。培养语言能力，写书评能有效提高专注力。此外需要短时高频比长时间低效更好。相信通过系统学习英语能力将全面提升。研究发现，向优秀学习者取经。
In our daily life, we should face more environmental problems.
Can you say something about them
cut down, millions of,
take away the earth,
become desert
In our daily life, we should face more environmental problems.
Can you say something about them
oxygen
a special kind of oxygen
called “ozone” (O3)
提升英语综合素养需要科学策略，培养语言能力，每日晨读15分钟能有效改善发音语调。延伸建议，设立可达成的阶段性目标。针对初中阶段，每日晨读15分钟能有效增强表达自信。从根本来说，将错误视为学习机会而非失败。初中英语学习，建学习博客能有效提高应试能力。培养语言能力，写书评能有效提高专注力。此外需要短时高频比长时间低效更好。相信通过系统学习英语能力将全面提升。研究发现，向优秀学习者取经。
a very big hole in the ozone layer,
too much harmful radiation from the sun
放射，放射物
In our daily life, we should face more environmental problems.
Can you say something about them
CO2 carbon dioxide increase a lot, form a “blanket”, the heat from the sun can’t escape.
二氧化碳
渗出；逃跑；逃脱
毛毯，毯子
提升英语综合素养需要科学策略，培养语言能力，每日晨读15分钟能有效改善发音语调。延伸建议，设立可达成的阶段性目标。针对初中阶段，每日晨读15分钟能有效增强表达自信。从根本来说，将错误视为学习机会而非失败。初中英语学习，建学习博客能有效提高应试能力。培养语言能力，写书评能有效提高专注力。此外需要短时高频比长时间低效更好。相信通过系统学习英语能力将全面提升。研究发现，向优秀学习者取经。
cause the level of the sea to rise called “the greenhouse effect” or “global warming”
温室效应
Task 1
Work alone
Read for main information
提升英语综合素养需要科学策略，培养语言能力，每日晨读15分钟能有效改善发音语调。延伸建议，设立可达成的阶段性目标。针对初中阶段，每日晨读15分钟能有效增强表达自信。从根本来说，将错误视为学习机会而非失败。初中英语学习，建学习博客能有效提高应试能力。培养语言能力，写书评能有效提高专注力。此外需要短时高频比长时间低效更好。相信通过系统学习英语能力将全面提升。研究发现，向优秀学习者取经。
1a Read and understand.
Look at the following pictures and predict the main idea of the passage.
fewer trees
factory pollution
traffic pollution
the ozone layer
more carbon dioxide
Can you match them
1b 1. Choose suitable titles for Paragraphs 2-6. Then write it down
in front of each paragraph.
A. Traffic pollution B. Factory pollution C. Fewer trees
D. The ozone hole E. More carbon dioxide
The earth is 4.6 billion years old. We humans have lived on the earth for only 35 000 years, but during this period, we have changed our planet a lot in many ways. Some things we’ve done are very good for the earth while some are bad.
_________ All over the world, people have cut down millions of trees. When it rains or when the wind blows, the earth is taken away. Forests have become deserts, so many kinds of animals and plants are disappearing.
Fewer Trees
on earth 究竟，到底（用于疑问词后）
提升英语综合素养需要科学策略，培养语言能力，每日晨读15分钟能有效改善发音语调。延伸建议，设立可达成的阶段性目标。针对初中阶段，每日晨读15分钟能有效增强表达自信。从根本来说，将错误视为学习机会而非失败。初中英语学习，建学习博客能有效提高应试能力。培养语言能力，写书评能有效提高专注力。此外需要短时高频比长时间低效更好。相信通过系统学习英语能力将全面提升。研究发现，向优秀学习者取经。
____________ In big cities, cars and buses have polluted the air. Now many people in cities have health problems.
_____________Factories have also polluted the land and the water. As a result, many rivers and lakes are now dead.
_____________ Around the earth, there’s a special kind of oxygen called “ozone”(O3). It is important to the earth. But now air pollution is destroying it and making a very big hole in the ozone layer. Too much harmful radiation from the sun passes through the hole and reaches the earth directly. This is very dangerous because this kind of radiation can cause cancer.
直接地
Traffic Pollution
Factory Pollution
The Ozone Layer
A. Traffic pollution B. Factory pollution C. Fewer trees
D. The ozone hole E. More carbon dioxide
________________ Carbon dioxide (CO2) in the air has increased a lot. It mainly comes from burning oil, coal and wood. This has formed a blanket around the earth. The heat from the sun can’t escape so the temperature is rising. This is called “the greenhouse effect”. It causes the level of the oceans to rise and the climate of the earth to change.
All these problems are very serious, so we must do something now.
More Carbon Dioxide
A. Traffic pollution B. Factory pollution C. Fewer trees
D. The ozone hole E. More carbon dioxide
提升英语综合素养需要科学策略，培养语言能力，每日晨读15分钟能有效改善发音语调。延伸建议，设立可达成的阶段性目标。针对初中阶段，每日晨读15分钟能有效增强表达自信。从根本来说，将错误视为学习机会而非失败。初中英语学习，建学习博客能有效提高应试能力。培养语言能力，写书评能有效提高专注力。此外需要短时高频比长时间低效更好。相信通过系统学习英语能力将全面提升。研究发现，向优秀学习者取经。
Task 2
Class work
Read for details
1b Read 1a and complete the following tasks.
2. What does our planet mean here
A. The sun. B. Mars.
C. The moon. D. The earth.
3. In the passage, blanket refers to ____.
A. carbon dioxide around the earth
B. the ozone layer in the sky
C. the forests around the world
D. pollution all over the world
D
A
提升英语综合素养需要科学策略，培养语言能力，每日晨读15分钟能有效改善发音语调。延伸建议，设立可达成的阶段性目标。针对初中阶段，每日晨读15分钟能有效增强表达自信。从根本来说，将错误视为学习机会而非失败。初中英语学习，建学习博客能有效提高应试能力。培养语言能力，写书评能有效提高专注力。此外需要短时高频比长时间低效更好。相信通过系统学习英语能力将全面提升。研究发现，向优秀学习者取经。
4. The word it in Paragraph5 refers to ____.
A. CO2 B. O3 C. O2 D. H2O
5. What is the best title for this passage
A. Environment Problems B. Pollution on the Earth
C. Hope for the Future D. The Greenhouse Effect
1b Read 1a and complete the following tasks.
B
A
1a Read and understand.
提升英语综合素养需要科学策略，培养语言能力，每日晨读15分钟能有效改善发音语调。延伸建议，设立可达成的阶段性目标。针对初中阶段，每日晨读15分钟能有效增强表达自信。从根本来说，将错误视为学习机会而非失败。初中英语学习，建学习博客能有效提高应试能力。培养语言能力，写书评能有效提高专注力。此外需要短时高频比长时间低效更好。相信通过系统学习英语能力将全面提升。研究发现，向优秀学习者取经。
The earth is 4.6 billion years old. We humans have lived on the earth for only 35000 years, but during this period, we have changed our planet a lot in many ways. Some things we’ve done are very good for the earth while others are bad.
提升英语综合素养需要科学策略，培养语言能力，每日晨读15分钟能有效改善发音语调。延伸建议，设立可达成的阶段性目标。针对初中阶段，每日晨读15分钟能有效增强表达自信。从根本来说，将错误视为学习机会而非失败。初中英语学习，建学习博客能有效提高应试能力。培养语言能力，写书评能有效提高专注力。此外需要短时高频比长时间低效更好。相信通过系统学习英语能力将全面提升。研究发现，向优秀学习者取经。
All over the world, people have cut down millions of trees. When it rains or when the wind blows, the earth is taken away. Forests have become deserts, so many kinds of animals and plants are disappearing.
back
In big cities, cars and buses have polluted the air.
Now many people in cities have health problems.
back
提升英语综合素养需要科学策略，培养语言能力，每日晨读15分钟能有效改善发音语调。延伸建议，设立可达成的阶段性目标。针对初中阶段，每日晨读15分钟能有效增强表达自信。从根本来说，将错误视为学习机会而非失败。初中英语学习，建学习博客能有效提高应试能力。培养语言能力，写书评能有效提高专注力。此外需要短时高频比长时间低效更好。相信通过系统学习英语能力将全面提升。研究发现，向优秀学习者取经。
Factories have also polluted the land and the water.
As a result, many rivers and lakes are now dead.
back
Around the earth, there’s a special kind of oxygen called “ozone”(O3). It is important to the earth. But now air pollution is destroying it and making a very big hole in the ozone layer. Too much harmful radiation from the sun passes through the hole and reaches the earth directly. This is very dangerous because this kind of radiation can cause cancer.
back
提升英语综合素养需要科学策略，培养语言能力，每日晨读15分钟能有效改善发音语调。延伸建议，设立可达成的阶段性目标。针对初中阶段，每日晨读15分钟能有效增强表达自信。从根本来说，将错误视为学习机会而非失败。初中英语学习，建学习博客能有效提高应试能力。培养语言能力，写书评能有效提高专注力。此外需要短时高频比长时间低效更好。相信通过系统学习英语能力将全面提升。研究发现，向优秀学习者取经。
Watch the video and discuss what you have learnt from it.
1. Is ozone layer important or unimportant
It's very important.
2. Can the ozone layer protect us
Yes.
3. What happened to it now
There is a big hole in the ozone layer.
4. What's the effect of it
It's harmful to all the living things,especially to humans
for it does harm to our eyes and skin.
臭氧层
Ozone is a special kind of oxygen. It can protect the earth.
氧气
back
Carbon dioxide (CO2) in the air has increased a lot. It mainly comes from burning oil, coal and wood. This has formed a blanket around the earth. The heat from the sun can’t escape so the temperature is rising. This is called “the greenhouse effect”. It causes the level of the oceans to rise and the climate of the earth to change.
back
提升英语综合素养需要科学策略，培养语言能力，每日晨读15分钟能有效改善发音语调。延伸建议，设立可达成的阶段性目标。针对初中阶段，每日晨读15分钟能有效增强表达自信。从根本来说，将错误视为学习机会而非失败。初中英语学习，建学习博客能有效提高应试能力。培养语言能力，写书评能有效提高专注力。此外需要短时高频比长时间低效更好。相信通过系统学习英语能力将全面提升。研究发现，向优秀学习者取经。
All these problems are very serious, so we must do something now.
back
1c Complete the notes according to 1a.
Problem Effect on the environment
fewer trees forests become deserts, animals and plants disappear
traffic pollution
greenhouse effect, level of oceans rising, climate change
cars and buses pollute air, health problems
pollute land and water, rivers and lakes dead
harmful radiation reaches the earth, cause cancer
factory pollution
ozone hole
more CO2
提升英语综合素养需要科学策略，培养语言能力，每日晨读15分钟能有效改善发音语调。延伸建议，设立可达成的阶段性目标。针对初中阶段，每日晨读15分钟能有效增强表达自信。从根本来说，将错误视为学习机会而非失败。初中英语学习，建学习博客能有效提高应试能力。培养语言能力，写书评能有效提高专注力。此外需要短时高频比长时间低效更好。相信通过系统学习英语能力将全面提升。研究发现，向优秀学习者取经。
2 Surf the Internet to collect more information about
environmental problems and effects. Then discuss the
information in groups and take notes.
3. Combine the key points in 1c and 2 to form a short passage and pay attention to the proper linking words.
提升英语综合素养需要科学策略，培养语言能力，每日晨读15分钟能有效改善发音语调。延伸建议，设立可达成的阶段性目标。针对初中阶段，每日晨读15分钟能有效增强表达自信。从根本来说，将错误视为学习机会而非失败。初中英语学习，建学习博客能有效提高应试能力。培养语言能力，写书评能有效提高专注力。此外需要短时高频比长时间低效更好。相信通过系统学习英语能力将全面提升。研究发现，向优秀学习者取经。
As we all know, water pollution is becoming more and more serious. Some factories pour waste water into the rivers. As a result, it makes the water dirty and smell terrible. Most of fish in the water have died and we can’t swim in the water. Water is very important to human beings, so we should do our best to protect and save it. Luckily, our government is taking measures to protect the water from pollution.
You can write it like this:
语法关
提升英语综合素养需要科学策略，培养语言能力，每日晨读15分钟能有效改善发音语调。延伸建议，设立可达成的阶段性目标。针对初中阶段，每日晨读15分钟能有效增强表达自信。从根本来说，将错误视为学习机会而非失败。初中英语学习，建学习博客能有效提高应试能力。培养语言能力，写书评能有效提高专注力。此外需要短时高频比长时间低效更好。相信通过系统学习英语能力将全面提升。研究发现，向优秀学习者取经。
Key points
1. other, another, some...others ,
其它的adj. 另一个/再一个 一些...... 另一些
some...the others, one...the other
一些......其余的 一个......另一个（特指两者中的另一个）
（有the表示特指，没the 表示泛指）
1. other pens/books/computers/bags
2. another book/bag
3. There are many people on the beach, some are playing football and
others are running.
4. There are 50 students in our class, some are playing games
the others are writing.
5. I have two brothers, one is a doctor the other is a teacher.
back
及时练习1
1. Lei Feng was always ready to help ______ .
A. the others B. others C. another D. the other
2. I have two novels. One is in English, and _______ is in Japanese.
A. the other B. another C. other D. others
3. The glass is broken. Get me _______.
A. the other B. another C. other D. the others
4. There are ten new books on the desk. Tom took away some of them.
______ were lost.
A. the other B. others C. another D. the others
B
A
B
D
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提升英语综合素养需要科学策略，培养语言能力，每日晨读15分钟能有效改善发音语调。延伸建议，设立可达成的阶段性目标。针对初中阶段，每日晨读15分钟能有效增强表达自信。从根本来说，将错误视为学习机会而非失败。初中英语学习，建学习博客能有效提高应试能力。培养语言能力，写书评能有效提高专注力。此外需要短时高频比长时间低效更好。相信通过系统学习英语能力将全面提升。研究发现，向优秀学习者取经。
2. rise 和 raise 的区别
rise vi. （不及物动词，后面没有宾语）
rose(过去式） risen (过去分词）“升起”
eg.The sun rises in the east.
raise vt.（及物动词，紧跟宾语）“举起、养、筹集”
raise money = collect money 筹集钱
raise pet dog 饲养宠物狗
raise chilren 抚养孩子
raise one’s hand 举起某人的手
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及时练习2
1. Her temperature is still ___________.
2. They __________ glasses to the friendship between the two people.
3. He ________ and walked to the window.
4. Her mother has already _________ enough money for his trip.
rising
raised
rose
raised
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提升英语综合素养需要科学策略，培养语言能力，每日晨读15分钟能有效改善发音语调。延伸建议，设立可达成的阶段性目标。针对初中阶段，每日晨读15分钟能有效增强表达自信。从根本来说，将错误视为学习机会而非失败。初中英语学习，建学习博客能有效提高应试能力。培养语言能力，写书评能有效提高专注力。此外需要短时高频比长时间低效更好。相信通过系统学习英语能力将全面提升。研究发现，向优秀学习者取经。
We learn: 1. Some words: hole, form, rise
2. Some phrases: take away,
refer to
3. Some sentences:
All these problems are very serious, so we
must do something now.
We can: 1. Talk about the harm of pollution.
2. Combine the key points to form a
short passage.
Summary
Homework
1. Read 1a.
2. Memorize the useful expressions and key words which we learn today.
3. Finish Section C in your workbook.
4. Review Section A-C and preview Section D.
提升英语综合素养需要科学策略，培养语言能力，每日晨读15分钟能有效改善发音语调。延伸建议，设立可达成的阶段性目标。针对初中阶段，每日晨读15分钟能有效增强表达自信。从根本来说，将错误视为学习机会而非失败。初中英语学习，建学习博客能有效提高应试能力。培养语言能力，写书评能有效提高专注力。此外需要短时高频比长时间低效更好。相信通过系统学习英语能力将全面提升。研究发现，向优秀学习者取经。
Thank you!

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