资源简介

(共35张PPT)
Unit 13
We're trying to save the earth!
1. To learn to talk about pollution and environmental protection.
2. To learn to use the sentence patterns:
used to... but now…
should do sth.
3. To master key words and phrases:
litter, bottom, fisherman, coal, ugly, advantage, cost, wooden, plastic, make a difference, lead to, instead of
Where do you like to live What’re your reasons
The earth is polluted.
But…
air pollution
water pollution
waste pollution
noise pollution
Here are some pictures related to different kinds of pollution.
This picture shows an airplane flying over some houses. The airplane seems to be flying at quite a low altitude (海拔), so the noise level must be quite high for the people living in those houses. This is considered noise pollution.
Can you describe this picture
What kind of pollution is it
This picture shows some vehicles giving out exhaust fumes (汽车尾气) and causing air pollution. The vehicles create noise pollution, too.
In this picture, we can bee big chimneys (probably factory chimneys) giving off a lot of smoke and polluting the air. The factories are also situated near the sea, and the industrial waste from them will pollute the sea.
Can you describe these pictures What kinds of pollution are they
This picture shows a rubbish dump (垃圾场) that pollutes the environment around it. It creates water pollution.
Can you describe this picture
What kind of pollution is it
Write them in the box below.
noise pollution
____________
____________
air pollution
_____________
_____________
water pollution
____________
____________
planes
cars
rubbish
factories
factories
noise pollution
____________
____________
____________
____________
air pollution
_____________
_____________
_____________
_____________
water pollution
____________
____________
____________
____________
loud music
planes
mobile phones
factories
cars
smoking
ships
factories
littering
rubbish
building houses
building houses
machines
crowds
vehicles
burning
loud music cars rubbish planes littering ships factories smoking building houses mobile phones
Write them in the box below. Then add more words.
litter v. 乱扔 n. 垃圾；废弃物
Listen and complete the sentences.
n. 底部
n. 渔民
You can predict the answers first.
What was the problem The river was ____________. Even the bottom of the river was full of ____________. There were no more ___________ for fishermen to catch.
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.
really dirty
rubbish
fish
litter
waste
government
close down
clean up
Listen again and answer the following questions.
What does Tony want to do later this afternoon
He wants to ______________________ in the river later this afternoon.
go swimming with Mark
2. How was the river in the past
It used to be so ______________________. It has been the ______________________ in this town.
clean
nicest river
used to do sth.
“过去常常……” 表示过去习惯性但如今已不存在的动作
play a part 参与
请跟读对话，注意语音语调。
Role-play the conversation.
Mark: The river was dirty. Even the bottom of the river was full of rubbish.
Tony: But it used to be so clean!
Mark: Yes, but people are throwing litter into the river.
Tony: Everyone in this town should play a part in cleaning it up!
Make your own conversations about the kinds of pollution in 1a.
Work in groups. Each group choose a topic in 2a. Say the words or phrases related to the word or phrase that the previous (前一个的) person said.
e.g. land pollution rubbish
dirty throw dustbin clean up trees cut down
farm burn …
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
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.
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.
more cars
pollute
are throwing away
public places
adj. 丑陋的
n.煤
跟读对话，并模仿语音语调。
air pollution
land pollution
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…
What are your ideas for solving the air pollution / waste pollution problem
Watch the flash. Then complete the chart.
Pollution Ways to solve the problem
air pollution
waste pollution
Check your answers.
Pollution Ways to solve the problem
air pollution
waste pollution
take the bus, subway or ride a bike instead of driving
bring a bag to go shopping
never take wooden chopsticks or plastic forks when buying takeaway food
throw rubbish in the bins
给……写信
河底
往河里扔垃圾
把……打扫干净
土地 / 空气 / 噪音 / 水污染
把……变成……
减少空气污染
write to ...
the bottom of the river
throw litter into the river
clean up ...
land / air / noise / water pollution
turn ... into ...
cut down air pollution
代替
对……有好处
外卖食品
保持公共场所干净美观
影响；有作用
带来；导致
instead of
be good for ...
takeaway food
keep public places clean and beautiful
make a difference
lead to
Ⅰ. 根据语境及所给首字母提示，补全所缺单词。
1. This dictionary c me 228 yuan, but it was worth it.
2. This street is cleaned every day. You can hardly find
l when you walk along it.
3. This method has two a : first, it is cheaper; and
second, it is quicker.
4. People are encouraged to take their own bags instead of
buying p bags when shopping.
5. The water is not very deep here. I can touch the b .
cost
litter
advantages
plastic
bottom
Ⅱ. 根据汉语意思完成英语句子，每空一词。
1. 房间里挤满了人。发生什么事了？
The room was ___________ ___________ people. What happened
2. 你应该交个笔友，用英语给他写信。
You should make a pen friend and ___________ ___________ him in English.
3. 转学对我的一生有影响。
Transforming from one school to another ___________ ___________ ___________ to my life.
full of
write
to
made
a difference
4. Susan seldom buys __________ __________(外卖食物). Most
of the time she cooks at home.
5. To help __________ __________ __________ __________
(减少空气污染), Jason rides a bike to work instead of driving.
6. Many people fear that the use of robots in factories will __________ __________(导致) job loss.
takeaway food
cut down air pollution
lead to
To do some research to have a better understanding and greater knowledge about sharks.
Why are sharks endangered
What caused a fall in the number of sharks
How can we protect sharks
Number of sharks caught and traded every year
How governments can help
Two environmental groups against “finning”
Lucid waters and lush mountains are invaluable assets.

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