(共19张PPT)
Unit 13
We're trying to save the earth!
Section A
1a-2d
Free talk
What are the reasons for them
air
pollution
water
pollution
noise
pollution
noise pollution
_____________
_____________
____________
___________
loud music
mobile phones
building houses
planes
air pollution
___________
___________
___________
___________
factories
smoking
cars
building houses
water pollution
____________
____________
____________
____________
ships
rubbish
littering
factories
machines,
crowds,
vehicles
burning power
plants,
nuclear waste
disposal
sewage,
industrial waste,
pesticides
1b
Listen 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.
√
√
1b
Listen and complete the sentences.
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
底部
渔民
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
close down
clean up
waste
government
垃圾,废弃物
1c
Role-play
The river was dirty…
But it used to be so clean! ...
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
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 ones.
丑陋的
are throwing away
public places
2d
Role-play the conversation.
减少,砍倒
advantage n.优点;有利条件
(反)disadvantage 缺点
2d
Read 2d and complete the chart.
Problems Solving problems
air pollution
waste pollution
Wooden chopsticks or plastic forks
rubbish
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.
木头的
外卖食物
make a difference to对...有作用或影响
n.塑料,adj.塑料的
1.Even the bottom of the river was full of ... 甚至河底都堆满了……
bottom 名词,意为“底部;最下部”,由其构成的常用短语为 at the bottom of“在……的底部”。
e.g. He fell to the bottom of the stairs. 他摔到了楼梯底下。
The answer is at the bottom of the page. 答案就在这一页的下端。
2.Everyone in this town should play a part in cleaning it up!
这个镇上的每个人都应该参与清理河流!
play a part in 意为“参与……;在……方面起作用”,相当于 play a role in,后跟名词、代词或动词-ing 形式。
e.g. He didn’t play a part in the competition at all.
他根本就没参加这次比赛。
Did you play a part in fighting? 你参与打架了吗?
3.Well, to cut down air pollution, we should take the bus or subway instead of driving. 为了减少空气污染,我们应该乘公共汽车或坐地铁来代替开车。
(1)句中动词不定式短语 to cut down air pollution 作目的状语,相当于 in order to cut down air pollution。
e.g. I’ve written it down in the notebook (in order) to remember it well.
为了记得牢固,我已经把它写在笔记本上了。
4.There are other advantages of bike riding. 骑自行车还有其他的优点。
advantage 名词,意为“优点;有利条件”。其反义词为 disadvantage “缺点;不利条件”。
e.g. This machine has many advantages. 这台机器有许多优点。
He has the advantage of a good education.
他具有受过良好教育的优势。
Before making your decision, you should consider the advantages and disadvantages. 在做出决定之前,你应该权衡一下利弊。
Homework
How should they be solved Write down your ideas.
land pollution
air pollution
noise pollution
water pollution
Thank you!