Unit 13 We're trying to save the earth Section A1a-2c课件＋音频(（共29张PPT）人教版九年级全册

(共29张PPT)
Section A 1a~2c
We’re trying to save the earth.
Unit 13
1
2
3
To learn to protect the environment 环境;
To talk about different kinds of pollution污染;
To master the key words and phrases:
litter, bottom, fisherman, environmental
protection, coal, advantage…
Learning objectives
The earth is badly polluted.
严重污染
air pollution 空气污染
The factories are burning coal.
coal n. 煤炭
Cars also pour dangerous gases into the air. 排入
Some people smoke in public places.
公共场所
Factories put waste into the river.
water pollution 水污染
waste
n. 废水，垃圾
People are throwing litter垃圾 into the river every day.
noise pollution 噪音污染
The cars/loud music make much noise制造噪音.
People build houses.
Here are some words related to different kinds of pollution. Write them in the box below. 单词可使用多次.
1a
loud music cars rubbish planes littering ships factories smoking building houses mobile phones
air pollution
litter v. 乱扔 n. 垃圾；废弃物
cars
factories
smoking
building houses
(burning, power plants)
noise pollution
water pollution
loud music
planes
building houses
mobile phones
(machines, crowds)
rubbish
littering 乱扔垃圾
ships
factories
(pesticides杀虫剂)
Read and try to answer the answers.
1. What does Tony want to do in/by the river
A. go fishing B. go swimming C. wash clothes
2. What kind of pollution are they talking about ____ pollution.
A. noise B. air C. water
3. Was the river clean before A. Yes. B. No. C. We don’t know.
4. What are put into the river
A. litter垃圾. B. waste废水 C. litter and waste.
5. Who should help to clean up the river
A. the government.政府 B. the factories工厂. C. everyone.
Read and try to predict the answers.
What was the problem The river was ___________. Even the bottom 底部of the river was full of _________. There were no more ____________for fishermen 渔民to catch捕捞.
What caused导致 the problem People are throwing ______________ into the river. Factories are putting ______________ into the river.
How should the problem be solved被解决 We should write to the _____________ and ask them
to _____________ the factories. Everyone should
help to _____________the river.
请认真阅读句子，分析每空应填词性，预测所填内容
1b
really dirty
rubbish
fish
litter 还可回收
waste
government
close down
clean up
play a part/role in doing sth.
参与做某事; 在做某事上起作用
听力原文 P146页右下角，两人一组围绕1b进行对话
be full of/ be filled with 充满
rubbish 不可回收的垃圾
Mark: The river was dirty. Even the bottom of the river was
full of rubbish. be filled with充满，装满
Tony: But it used to be so clean! “过去常常……”
Mark: Yes, but people are throwing litter into the river. 扔
Tony: Everyone in this town should play a part in cleaning it up!
补充笔记到书本97页下方。
play a part/role in doing sth. “ 在做某事上起作用”
1c
The government should make serious laws制定法律 about water protection.
We should save节约 water.
Listen to the interview. Circle the kinds of pollution that Jason and Susan talk about.
A.land/soil土地 pollution
B. air pollution
C. noise pollution
D. water pollution
2a
Listen again and complete the sentences.
The air is badly polluted because there are _______________ on the road these days.
Factories that burn coal also ____________ the air with a lot of black smoke.
There is also too much rubbish and waste. People _________________ things every day.
People are also littering in ____________ like parks. This is turning beautiful places into ugly ones.
more cars
pollute
are throwing away
public places
A reporter is interviewing
Jason and Susan about the pollution.
2b
Every little thing
counts.
__________
Take actions to protect environment.
try
1. We’re trying to save the earth!
我们正在竭尽全力拯救地球!
try to do =try one’s best to do 尽力去做某事
【翻译】
我们将努力在一周内完成这项工作。
We’ll try to finish the work in a week.
Language points
try相关短语:
try doing sth. 试着做某事
try on 试穿
try out 尝试；试验；试试
be related to
rubbish&
litter
bottom
play a part in
4. Even the bottom of the river was full of rubbish.
Yes, but people are throwing litter into the river.
litter和rubbish都可指“垃圾”，用作不可数名词。
litter指“（室内或公共场所）乱扔的废物
（纸屑、不要的包装纸、废瓶等）”还可回收。
rubbish指“没用的东西（被扔或将要丢弃的无用的东西）”不可回收。
try
Language points
be related to
play a part in
bottom
rubbish&
litter
try
Language points
be related to
rubbish&
litter
bottom
play a part in
2.Here are some words related to different
kinds of pollution.
be related to 与……有关
e.g. Is the driver related to the accident
司机和这起事故有关吗？
3. Even the bottom of the river was full of rubbish.
bottom n. 意为“底部; 最下部”，反义词是top。
Sign your name at the bottom of the page, please.
请在这一页下部签上你的名字。
固定搭配at /in the bottom of 意为“在......的底部”
My teacher has given me useful suggestions
and I want to thank him from the ______ of my heart.
A. condition B. bottom C. way D. surface
B
try
Language points
be related to
play a part in
bottom
rubbish&
litter
5. Everyone in this town should play a part in cleaning it up!
play a part in 在……方面起作用
相当于play a role in…
A good diet plays a large part in helping
people live longer.
He plays an important role in Shakespear's drama.
他在莎士比亚的戏剧中扮演一个重要角色。
健康饮食在帮助人们长寿方面起着非常大的作用。
try
Language points
be related to
rubbish&
litter
bottom
play a part in
给……写信
河底
往河里扔垃圾
把……打扫干净
土地 / 空气 / 噪音 / 水污染
把……变成……
write to ...
the bottom of the river
throw litter into the river
clean up ...
land / air / noise / water pollution
turn ... into ...
summary
1. 在冬天，这里的人们烧煤来取暖。
People here burn coal to keep themselves warm in winter.
2. 为了有一个更好的未来，他每天努力地工作着。
He works hard every day for a better future.
3. 那个箱子的底部不结实了。
The bottom of the box is not strong enough.
4. 这个新的电视节目有优势吗？
Are there any advantages of the new TV program
5. 每一位队员在赢得这场比赛中都发挥了作用。
Each teammate played a part in winning the game.
翻译句子
What causes the water pollution
People throw rubbish into the river.
Factories put the waste into the river.
What can we do to solve it
We can help to clean the river.
The government should close down关闭 the factories.
The government should make serious laws制定法律 about water protection.
We should save节约 water.
Homework
Write a short passage to summarize the problems we have learnt today and the suggested solutions.
Finish the exercises on the students’ book.
Preview 2d and Grammar Focus.
听力原文
Check the answers!
The air has become really polluted around here. I’m getting worried.
Use the information in 2a and 2b to role-play conversations between Jason and Susan.
The problem is that…
Yes, I used to be able to see stars in the sky.
Jason
Susan
2c
What causes the air pollution
What can we do to solve it
There are more and more cars on the road. They give off the waste gas into the air.
Factories that burn coal also pollute the air with a lot of black smoke.
We can walk or ride the bike, take the bus or subway instead of driving the car.
We can plant more trees.
The government should close down the factories.
What causes the land/soil pollution
There is too much rubbish and waste. People are throwing away things every day .
People use too many plastic bags.
What can we do to solve it
We should throw the rubbish into the bins.
We can help to clean up the streets or parks.
We'd better not use wooden chopsticks or plastic bowls when we buy takeaway food.
We can bring our own bag when we go shopping.