英语人教版九年级全册13单元

Unit 13 Section A 1 (1a-2d)
I.Presentation
Show the picture of the earth and tell students the earth is polluted now.
For example:
(1)The factories that burn coal pollute the air with a lot of black smoke.
(2)Factories put waste into the river.
(3)People should throw away litter in the bin.
(4)There are more cars on the road
II.Learning
Here are some words related to different kinds of pollution. Write them in the box below. Then a dd more words.
loud music cars rubbish planes littering ships factories smoking building houses mobile phones
noise pollution _________ ____________ __________________________
air pollution _________ ____________ __________________________
water pollution ________ ____________ __________________________
Keys : noise pollution ：loud music planes mobile phones building houses
air pollution ：factories smoking cars building houses
water pollution ：ships rubbish littering factories
III.Listening
1b Listen and complete the sentences.
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.
What caused the problem?
People are throwing ___ into the river. Factories are putting into the river.
How should the problem be solved?
We should write to the _______ and ask them to ________ the factories.
Everyone should help to ______ the river.
Keys: really dirty rubbish fish litter waste government close down clean up IV. Practice
1. Role-play the conversation in 1c.
Mark: The river was dirty. Even the bottom of the river was full of rubbish. Tony: But it used to be so clean!
Mark: Yes, but people are throwing litter into the river.
Tony: Everyone in this town should play a part in cleaning it up!
2. Make conversations using the pollution in 1a.
A: The river has always been the nicest river in this town. B: Yes, it used to be so clean.
A: But I was there last weekend and the river was really dirty. B: What caused the problem?
A: People are throwing litter into the river. B: What should we do?
A: Factories are also putting waste into the river. B: Yes, everyone in this town should play a part.
A: We should write to the government and ask them to close down the factories. B: What else ca n we do?
A: Everyone should help to clean up the river.
V. Language points 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 努力去做某事。

e.g. Every student should try to study hard in order to study in a university. 习，每个学生都应该努力学习。

2. Here are some words related to different kinds of pollution. be related to 与⋯有关
e.g. I am not related to him in any way. 我和他无任何关系。

3. Everyone in this town should play a part in cleaning it up! play a 为了进入大学学 方面起作用
part in 在
e.g. A good diet plays a large part in helping people live longer. 健康饮食在帮人们长寿方面起着非常大作用。

play a part 在⋯⋯中扮演角色
e.g. He was invited to play a part in this TV play. 他被邀请参加这个电视剧的演出。

4.Even the bottom of the river was full of rubbish. Yes, but people are throwing litter into the ri ver.
litter 和rubbish 都可指“垃圾” ，用作不可数名词。

rubbish 指“没用的东西（被扔或将要丢弃的无用的东西）”不可回收。

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 e.g. Throw the rubbish out. 把垃圾扔出去。

The room is full of rubbish. 房间里堆满了垃圾。

Pick up your litter after a picnic. 野餐后将废弃物收拾好。

VI.Listening
1. 2a Listen to the interview. Circle the kinds of pollution that Jason and Susan talk about.
A. land pollution
B. air pollution
C. noise pollution
D. water pollution
Keys: B A
2. 2b Listen again and complete the sentences.
1）_____________________________________________ The air is badly polluted because there are ______________________________________ on the road these days. 2）Factories t
hat burn coal also ___ the air with a lot of black smoke.
3） There is also too much rubbish and waste. People ________ things every day.
4） People are also littering in _____ like parks. This is turning beautiful places into ugly
（丑陋） ones.
Keys: more cars pollute are throwing away public places
VII.P ractice （2c）
Use the information in 2a and 2b to role-play conversations between Jason and Susan.
Jason: The air has become really polluted around here. I ' m getting very worried. Susan: Yes, I used to be able to see stars in the sky.
Jason: The problem is that ⋯
VIII.Discussion
Ask students what we should do to save the earth.
Help students answer, turn off the lights when you leave a room; stop riding in cars; stop using pa per towels or napkins; recycle books and paper.
IX.Reading
1. Read 2d and complete the chart.
Problems Solving problems
air pollution ____________________________________________________________
waste pollution __________________________________________________________
wooden （木头的） chopsticks or plastic forks ____________________
rubbish _________________________________________________________________
2. Role-play the conversation.
Interviewer: Jason and Susan, what are your ideas for solving these problems?
Jason: Well, to cut down air pollution, we should take the bus or subway instead of driving.
Susan: Yeah, or ride a bike. There are other advantages （优点） of bike riding. It
s good for health and it doesn ' t cost （花费） anything!
Interviewer: Great ideas! What about waste pollution?
Susan: Mmm, I think simple things like bringing a bag to go shopping can help. I started doing tha t a year ago.
Jason: Me, too. Also, I never take wooden chopsticks or plastic （
料） forks when I buy takeaway （外卖食品） food. I use the ones at home.
Susan: And remember to throw rubbish in the bins and keep public places clean and beautiful for everyone.
Interviewer: So together, our actions can make a difference and lead to a better future!
X.Summary and language points 1. This is turning beautiful places into ugly ones. turn ⋯into ⋯把⋯⋯变成 e.g. The icy rain seemed like to turn into snow. 渐渐地冻雨又变成雪花的模样。

2. It' s good for health and it doesn ' t cost anything! cost v. 花费；使付出指
花费金钱，主语通常是物。

cost 的过去式和过去分词均为cost。

e.g. The new shirt cost Mr Wang 200 yuan. 王先生花了200 元买了新衬衫。

How much does the new computer cost? 新电脑花了多少钱？
take, spend, pay & cost
take，spend，pay 和cost 都可以表示“花费” ，但它们的用法各有不同。

1)take 多表示花费时间，常用于It takes sb. some time to do sth. 这一句型中，其中it 作形式主语。

e.g. It usually takes me 40 minutes to cook the dinner.
2)spend多表示花费时间和金钱，主语通常是人，常用于sb. spend(s) some time / money on sth. 和sb. spend(s) some time / money (in) doing sth. 两种句型。

e.g. David spent 2,000 yuan on the new machine.
My father spends an hour (in) watching the news on TV every day.
3)pay 多表示花费金钱，主语通常是人，常用于sb. pay(s) some money for sth. 句
型。

e.g. Tommy paid 20 yuan for his breakfast yesterday.
4)cost 多表示花费金钱，主语通常是物，常用于sth. cost(s) (sb.) some money. 句
型。

e.g. The new dress cost Linda 88 yuan.
根据句意用take, spend, pay 或cost 的适当形式填空。

1)That new car _____ them lots of money.
2)Mona _________ 50 yuan on the books just now.
3)It usually ___ me an hour to do my homework.
4)You should _______ some time practising your pronunciation.
5)My brother ___ 6, 000 yuan for the new computer yesterday.
Keys cost spent takes spend paid
3.So together, our actions can make a difference and lead to a better future! make a difference (to ⋯) 表示( 对⋯⋯) 产生影响或作用
e.g. Do you think his words would make any difference to the final decision? 你认
为他的话
会对最后的决定产生影响吗？
The new teacher always encourages little Tom. This has made a big difference to him. 新来的老师总是鼓励小汤姆，这对他影响很大。

XI.Exercises
用动词的适当形式填空。

1) We' re trying ____ (save) the earth.
2)There used to __ (be) clean and beautiful.
3)There are too many __ for ______ t o catch (fish).
4)Its bad for environment to use __ (wood) chopsticks.
Keys: to save be fish fishermen wooden
XII.T hink about
The earth is badly polluted. Please make a poster and think of what we can do.
XIII.Homework
1. Copy the new words and remember them.
2. Read the listening materials of 1b, 2a.。