Unit 13 We’re trying to save the earth！Section A (1a－2d)课件(共17张PPT，内嵌音频)

(共17张PPT)
Unit 13　We’re trying to save the earth！
Section A (1a－2d)
一
学习目标
【知识目标】Important words：litter；bottom；fisherman；coal；ugly；advantage；cost；wooden；plastic
Important phrases：the bottom of the river；be full of rubbish；throw litter into the river；play a part in cleaning it up；land pollution；pollute the air with black smoke；cut down air pollution；make a difference
Important sentences：
1．Everyone in this town should play a part in cleaning it up!
2．The air is badly polluted because there are more cars on the road these days.
3．To cut down air pollution, we should take the bus or subway instead of driving.
4．I used to be able to see stars in the sky.
5．The air has become really polluted around here.I’m getting very worried.
【能力目标】
学会用被动语态，现在进行时，used to结构谈论环境污染问题；积累丰富的与环保话题相关的词汇、短语和句子表达。
【情感目标】
帮助学生关注环境污染的严重危害，并积极思考解决措施。
二
教学过程
自主学习
1．We should put up a notice to stop from ____(乱扔垃圾)．
2．The teacher asked us to find a way to pick up the coins at the ____(底部) of the bottle.
3．There are no more fish for ____(渔夫) to catch in the river.
4．We should take the paper bags to go shopping instead of the ____(塑料的) ones.
5．Could you please tell us another ____(优点) of riding a bike to work
情景导入
What kind of pollution do you know
What do you feel about the pollution
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
____________
____________
____________
____________
loud music
planes
mobile phones
factories
cars
smoking
ships
factories
littering
rubbish
building houses
building houses
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
Role-play the conversation.
1c
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!
2a
Listen to the interview. Circle the kinds of pollution that Jason and Susan talk about.
Kathy
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 (丑陋的) ones.
more cars
pollute
are throwing away
public places
Use the information in 2a and 2b to role-play conversations between Jason and Susan.
2c
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…
2d
Role-play the conversation.
三
反馈练习
一、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
三
反馈练习
二、用动词的适当形式填空。
1. We’re trying _______ (save) the earth.
2. There are too many ____ (fish) for __________ to catch.
3. It’s bad for the environment to use _________ (wood) chopsticks.
to save
fish
wooden
fishermen