(共31张PPT)
Unit13 We're trying to save the earth! Section A 1a-2d
Learning Objectives
master the key words and phrases
learn to talk about pollution and environmental protection
What pollution do you know
The factories that burn coal pollute
the air with a lot of black smoke.
air pollution
What pollution do you know
Factories put waste into the river.
people litter everywhere.
water pollution
What pollution do you know
There are too many cars on the road.
Some people play loud music in public.
noise pollution
What pollution do you know
People use a lot of plastic bags in
their daily life.
soil pollution
throw rubbish in the bin
take more public transportation
What can we do
keep quiet in the public place
Here are some words related to different kinds of pollution. Write them in the box below. Then add more words.
1a
loud music cars rubbish planes
littering ships factories smoking
building houses mobile phones
noise pollution
____________
____________
____________
____________
air pollution
___________
___________
___________
___________
water pollution
____________
____________
____________
____________
factories
loud music
planes
mobile phones
factories
cars
smoking
ships
littering
rubbish
building houses
building houses
Listen and complete the sentences.
1b
What was the problem The river was ___________. Even the bottom of the river was full of ________. There were no more _____ for fishermen 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
Role-play the conversation. Then make your own conversations about the kinds of pollution in 1a.
1c
But it used to
be so clean!
The river was dirty. Even the bottom of the river was full of rubbish.
Everyone in this town should play a part in cleaning it up!
Yes, but people
are throwing litter into the river.
But it used to be so clean!
The air was dirty. The smoke from factories was black.
Role play
Yes, but people are polluting the air.
We should write to the government and ask them to close down the factories.
[观察] Everyone in this town should play a part in
cleaning it up!
这个城镇的每个人都应该参与清理河流。
[探究] play a part in意为“_________；在……方面起作
用”，后接名词、代词或动词-ing形式。
我想参加学校活动。
I want to _____________ in school activities.
play a part
参与某事
常用短语
play an active part in (doing) sth. 积极参与（做）某事
play an important part in (doing) sth. 在某事中发挥重要作用
[拓展]play a part 在……中扮演角色 , 与 play a role 同义。
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
Linda ____________ of Snow White in the play.
琳达在这部话剧中扮演了白雪公主的角色。
played a part
Listen to the interview. Circle the kinds of pollution that Jason and Susan talk about.
2a
A. land pollution B. air pollution
C. noise pollution D. water pollution
Listen again and complete the sentences.
2b
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.
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 ones.
cars
pollute
more
are throwing away
public places
Use the information in 2a and 2b to role-play conversations between Jason and Susan.
2c
Yes, I used to be able to see stars in the sky.
The air has become really polluted around here. I’m getting very worried.
The problem is that…
Read the conversation in 2d quickly, and answer the question.
What environment problems are they talking about
waste pollution
air pollution
Read the conversation and complete the chart.
Pollution
Ways to solve the problem
Air
pollution
Waste
pollution
take the bus, subway or ride a bike instead of driving
1. bring a bag to go shopping
2. never take wooden chopsticks or plastic forks but use the ones at home while buying takeaway food
3. throw rubbish in the bins.
Role-play the conversation.
2d
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
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!
外卖食物
[观察] Well, to cut down air pollution, we should take the bus or subway instead of driving. 哦，为了减少空气污染，我们应该乘坐公共汽车或地铁，而不是开车。
[探究] cut down意为“_______；削减”，此时通常和pollution, cost, amount等词搭配。
[拓展] cut down还有“砍伐；砍倒”之意，此时通常和tree搭配。
The officers have told us not to cut down the trees.
那些官员告诉我们不要砍伐这些树。
减少
活学活用
1．2018·安顺 I think young phubbers(低头族) are supposed to ________ the time they spend ________ their smart phones.
A. cut off; in
B. cut down; on
C. cut up; on
D. cut in; in
B
[观察] It's good for health and it doesn't cost anything!
它对健康有好处，而且不花费任何东西！
[探究] cost作动词，意为“花费”，此时是及物动词，它的主语通常是 __________，cost后可以跟双宾语， 即__________________，表示“花费某人多少钱”。
[拓展] cost还可以作名词，意为“花费；价钱”，通常作不可数名词。
The ____ of the coat was $21. 这件大衣的价钱是21美元。
事或物
cost sb. some money
cost
[辨析]
常表示花费时间，常见搭配
It takes sb. some time to do sth.
spend
take
pay
cost
主语是人，表示花费时间和金钱。常见搭配：
sb.spend(s) some money/time on sth.(in)doing sth.
主语是人，常用于表示“付费”和介词for搭配。
主语多是事或物，常见搭配：
sth. cost(s) sb. some money.
活学活用
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.
cost
spent
takes
spend
paid
[观察] Our actions can make a difference and lead to
a better future! 我们齐心协力就能带来变化，创
造更加美的未来。
[探究] make a difference 起作用；有影响
make a difference to ... 对……产生影响
[注意] difference前面可加修饰语，如big, great等，表示受
影响的程度。
锻炼对她产生了重大影响。
Exercise ____________________ to her.
made a big difference
Exercise
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
