Unit13 We‘re trying to save the earth! SectionA 2a-2d 课件(共29张PPT，无音频) 人教版九年级英语全册

(共29张PPT)
Unit 13
We are trying to save the earth.
(2a-2d)
The earth is polluted.
Susan: They’re also littering in public places, for example, during picnics in parks. This is turning beautiful places into ugly ones.
Interviewer: You’re right. These are serious problems for our environment. Next, let’s talk about the things we can do to help.
Tape scripts
把…变成…
2a
Listen to the interview. Circle the kinds of pollution that Jason and Susan talk about.
land pollution B. air pollution
C. noise pollution D. water pollution
Because of pollution, our sky isn’t blue any more.
Because of pollution, the water isn’t clean any more.
Listen to an interview and make your choices.
What can we do to cut down air pollution (more than one choice)
Drive the car B. Take the bus or subway
C. Ride a bike D. Bring a bag to go shopping
What can we do to deal with waste pollution (more than one choice)
Bring a bag to go shopping
B. Take wooden chopsticks when buying take away food
C. Take plastic forks when buying take away food
D. Throw rubbish in the bins
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
Because of pollution, more and more people suffer from cancer.
air pollution
The factories that
burn coal pollute
the air with a lot of
black smoke.
n. 煤炭
Can you think of the different kinds of pollution
Susan: Mmm, I think simple things like bringing a bag to go
shopping can help. I started doing that a year ago.
Jason: Me, too. Also, I never take wooden chopsticks or plastic
forks when I buy takeaway 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!
外卖
带来影响、起作用
通向；导致
Language points
10. cause vt. 造成 n[C]. 起因（一般指不好的事情）
Drinking and driving is one’s of the most common cause of traffic accidents.
酒后驾车是导致交通事故最常见的原因之一。
the cause of sth. 某事的起因
What do you think has caused this problem
你认为什么造成了这个问题？
industry
harmful
cost
wooden
plastic
affort
n. 工业
adj. 有害的
v. 花费
adj. 木制的
adj. 塑料的
v. 支付的起
Words and expressions
make a difference
take part in
turn off
pay for
cut down
lead to
起作用；有影响
参加
关掉
付费；付出代价
减少
导致
Words and expressions
1.---How much is the ticket to
Central Park
---A one-way ticket _____ $40, and you can
____ anther $20 for a round-trip.
A. costs, pay B. cost, spend
C. pay, spend D. spends, pay
2. The poor old man lived in a little ____ hut.
A. wood B. woodenly
C. woodenness D. wooden
A
D
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Hours
Minutes
Seconds
1分钟倒计时
What we can do to reduce the pollution
Disscuss
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. . .
Let’s watch this video.
noise pullotion
air pollution
water pollution
cars, factories, smoking, building houses(burning, power plants, nuclear waste disposal) Loud music, planes, building houses, mobile phones(machines, crowds, vihicles) rubbish, littering, ships, factories(sewage, industrial waste, pesticides)
1. We should take _______ or _______ instead of driving to cut down the air pollution.
2. We should also _______ ______ _____. It’s good for health!
3. Bring ___________ to go shopping.
4. Never take _________________ or __________ when buying takeaway food.
5. ______________ in the bins and keep public places clean and beautiful.
What should we do
the bus
subway
ride
a
bike
a bag
wooden chopsticks
plastic forks
Throw rubbish
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
make no difference to 对……没有影响
e.g. Learning English well can make a
difference to your future.
学好英语会对你的前途有影响。
2d 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 of bike
riding. It’s good for health and it doesn’t cost anything!
Interviewer: Great ideas! What about waste pollution
减少；砍伐
代替
优点
用动词的适当形式填空。
1. We’re trying _______ (save) the earth.
2. It 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
takeaway
wooden
plastic
advantage (of)
It's good for health.
It doesn't cost anything.
用方框中所给词的适当形式填空。
1. Don't throw _______(垃圾) everywhere.
2. In winter, many people burn ______(煤) to keep warm.
3. The police found a body at the ________(底部) of the lake.
4. The ______(花费) of living in big cities is very
high.
5. He keeps a rabbit in a big _______(木制的) box.
cost wooden, coal , bottom, litter
cost
wooden
coal
bottom
litter
ExercisesⅠ. 根据句意及中文提示，补全句中所缺单词。
1. In the past people used (煤)to produce electricity.
2. The new car （花费）a lot of money, but it was certainly worth it.
3. There is a （木制的）bed, a table and two chairs in this small room.
4. It is a very clean city. You will hardly find （废弃物）when you walk along the streets.
5. My uncle is a great___________ (渔民)and he caught four fish this morning.
6. Some cups in the shop are nice and expensive and the others are (丑陋的)and cheap.
7. Living in this street has a lot of ____________(优点). The only drawback (弊端) is noise.
coal
cost
wooden
litter
fisherman
ugly
advantages
1.Recite the conversation in 2d.
2.Copy the Summary twice.
3.Preview Section A 3a-3c.