(共23张PPT)
Section A (1a-1c)
Unit 13 We’re trying to save the earth.
学习目标
Key words & phrases:
litter, bottom,fisherman, environmental protection.
Key sentences:
1. People are throwing litter into the river.Even the bottom of the river is full of rubbish.
2. Everyone in this town should play a part in cleaning it up! .
To talk about pollution and environmental protection.
Let's watch a video !
Warming-up
Earth Song
water
pollution
noise
pollution
land
pollution
air
pollution
What kinds of pollution do you know
pollution
noise pollution
air pollution
water pollution
land pollution
Do you know what caused the pollution
What should we do to save the earth
Free talk
Pre-listening
1a
Here are some words related to different kinds of pollution. Write them in the box below. Then add more words.
loud music cars rubbish planes littering ships factories smoking
building houses mobile phones
litter/ l t (r)/ v. 乱扔 n. 垃圾；废弃物
rubbish n. 垃圾；废弃物
noise pollution
________________________________________________________________________________________________
air pollution
__________________________________________________________________________________________
water pollution
____________________________________________________________________________________
loud music
planes
building houses
mobile phones
(machines, crowds)
cars
factories
smoking
building houses
(burning, power plants)
rubbish
littering
ships
factories
(sewage, pesticides)
1b
While-listening
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.
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 questions.
He wants to go swimming in the river.
Because the river was really dirty. Even the bottom of the river was full of rubbish, and there were no more fish for fishermen to catch.
It used to be so clean.
2. Why doesn’t Mark want to go with Tony
What does Tony want to do later this afternoon
3. How was the river in the past
Listen and read.
Listen and read
Tony: Hey, Mark, maybe we could go swimming in the
river later this afternoon.
Mark: I don’t think I want to go, Tony.
Tony: Why not
Mark: I was there last weekend and the river was really
dirty. Even the bottom of the river was full of rubbish,
and there were no more fish for fishermen to catch.
下午晚些时候
……的底部
Tony: No way! It used to be so clean. In fact, it has always been the
nicest river in this town.
Mark: Not anymore. I think people are throwing litter into
the river. Factories are also putting waste into the river.
Tony: That’s terrible! We should write to the government.
They should close down the factories.
Mark: Good idea! But I think everyone in this town should help to
clean up the river, too. Everyone should play a part, not just
the government.
曾经……; 过去常常……
关闭
play a part=play a role
参与；扮演角色；起作用
Let's watch a video !
Post-listening
1c
Role-play the conversation. Then make your own conversations about the kinds of pollution in 1a.
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 littering in the river.
Tony: Everyone in this town should play a part in cleaning it up!
Language points
1.We’re trying to save the earth!
我们正在竭尽全力拯救地球!
try to do = try one’s best to do 努力去做某事
e.g. We’ll try to finish the work in a week.
我们将努力在一周内完成这项工作。
2.Here are some words related to different
kinds of pollution.
be related to 与……有关
e.g. Is the driver related to the accident
司机和这起事故有关吗？
3. Even the bottom of the river was full of rubbish.
Yes, but people are throwing litter into the river.
litter和rubbish都可指“垃圾”，用作不可数名词。
litter指“（室内或公共场所）乱扔的废物（纸屑、不要的包装纸、废瓶等）”还可回收。
rubbish指“没用的东西（被扔或将要丢弃的无用的东西）”不可回收。
4.Everyone in this town should play a part in cleaning it up!
play a part in 在……方面起作用
e.g. A good diet plays a large part in helping people live longer.
健康的饮食在帮助人们长寿方面起着非常大的作用。
Homework
Preview the conversation in 2d.
Do the exercises in students’ book.
Thank you!
