人教新目标(Go for it)版九年级全册Unit 13 We are trying to save the earth-Section A 1课件(共52张PPT)

(共52张PPT)
九年级英语下册（RJ）教学课件
Unit 13
We are trying to save the earth.
Section A
1a-2d
Warming up
The earth is polluted.
Warming up
air pollution
The factories that
burn coal pollute
the air with a lot of
black smoke.
n. 煤炭
Warming up
Factories put waste into the river.
water pollution
Warming up
mobile phone pollution
Warming up
litter v. 乱扔
n. 垃圾
rubbish waste
垃圾，废弃物
People should throw away litter in the bin.
n. 垃圾箱
Warming up
noise pollution
There are more
cars on the road.
1a
Section
A
Here are some words related to different kinds of pollution. Write them in the box below. Then add more words.
noise pollution
____________
____________
____________
____________
air pollution
___________
___________
___________
___________
water pollution
____________
____________
____________
____________
loud music
planes
mobile phones
factories
cars
smoking
ships
factories
littering
rubbish
building houses
building houses
loud music cars rubbish planes
littering ships factories smoking
bulding houses mobile phones
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.
really dirty
rubbish
fish
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.
litter
waste
government
close down
clean up
Listen again and check (√) the sentences you hear.
1. We could go fishing in the river.
2. The river was really dirty.
3. The river has always been the nicest
river in this town.
4. We should ask the teachers for help.
√
√
Watch and read
1c
Role-play
Role-play the conversation.
The river was dirty. Even the bottom of the river was full of rubbish.
But it used to be so clean!
Yes, but people are throwing litter into the river.
Everyone in this town should play a part in cleaning it up!
Make your own conversations about the kinds of pollution in 1a.
The river has always been the nicest river in this town.
Yes, it used to be so clean.
What caused the problem
But I was there last weekend and the river was really dirty.
Factories are also putting waste into the river.
People are throwing litter into the river.
What should we do
Yes, everyone in this town should play a part.
We should write to the government and ask them to close down the factories.
What else can we do
Everyone should help to clean up the river.
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.
为了进入大学学习，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 part in 在……方面起作用
e.g. A good diet plays a large part in
helping people live longer.
健康的饮食在帮助人们长寿方面起着
非常大的作用。
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 river.
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。
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
2a
2b
Listen again and complete the sentences.
1. The air is badly polluted because there are ___________ on the road these days.
2. Factories that burn coal also ________ the air with a lot of black smoke.
more cars
pollute
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.
are throwing away
public places
Listen and answer the questions.
1. Who is the interviewer talking to
2. What are they talking about
3. What other problems do they see
Susan and Jason.
The environmental problems.
There’s too much rubbish and waste in the streets.
2c
Role-play
The air has become really polluted around here. I’m getting very worried.
Yes, I used to be able to see stars in the sky.
The problem is that…
Role-play conversations between Jason and Susan.
What should we do to save the earth
Turn off the lights when you leave a room.
关掉
stop riding in cars
stop using paper towels or napkins（餐巾，餐巾纸）
recycle books and paper
回收利用
2d
Read 2d and complete the chart.
take the bus, subway or ride a bike instead of driving.
bring a bag to go shopping.
use chopsticks or forks at home.
throw rubbish in the bins.
Jason and Susan, what are your ideas for solving these problems
Role-play
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!
Well, to cut down air pollution, we should take the bus or subway instead of driving.
Great ideas! What about waste pollution
Me, too. Also, I never take wooden chopsticks or plastic (塑料) forks when I buy takeaway (外卖食品) food. I
use the ones at home.
Mmm, I think simple things like bringing a bag to go shopping can help. I started doing that a year ago.
And remember to throw rubbish in the bins and keep public places clean and beautiful for everyone.
So together, our actions can make a difference and lead to a better future!
Language points
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.
cost
spent
takes
4. You should __________ some time practising your pronunciation.
5. My brother _______ 6, 000 yuan for the new computer yesterday.
spend
paid
6. 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。
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 __________
to catch (fish).
4. It’s bad for environment to use
_________ (wood) chopsticks.
to save
be
fish
wooden
fishermen
Make a poster!
The earth is badly polluted. Please make a poster and think of what we can do.
Save the earth!
3.Complete the student’s book lessons.
1. Finish your composition.
2. Review the whole unit.
Homework