(共29张PPT)
Unit 13 We're trying to save the earth.
人教新目标版 九年级上
SectionA
1a-2c公开课
Learning objectives
1. 在语境中理解、识记并运用本课时词汇： litter ,ugly,at the bottom of the river
be full of the rubbish, throw litter into the river,play a part in 等。
2. 通过听力活动练习，能精准提取关键信息，锻炼思维的逻辑性。
3.能运用本单元词汇和句式谈论环境污染和环境保护的话题。
4. 能够用与污染相关的词汇，对环境污染和环境保护进行简单描述。
Warming-up
Watch some videos.
1978 2023
The earth used to be blue and beautiful.
The earth is polluted!
Free talk
The world’s problem
air pollution
water pollution
desertification
Natural disasters
Endangered animal
Pollution
Free talk
The earth is polluted.
We're harming our planet in so many ways.
noise pollution
water pollution
air pollution
loud sound
car
plane
...
What caused these problems
factory
littering
ship
car
ship
factories
plane
What can you see in the pictures in 1a
1
2
3
4
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
litter 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
mobile phones
factories
cars
smoking
ships
factories
littering
rubbish
building houses
building houses
loud music cars rubbish planes littering ships factories smoking building houses mobile phones
machines/
crowds…
burning/
chemical
materials…
industrial
waste …
litter 作不可数名词，意为“垃圾；废弃物”。
litter和rubbish都可指“垃圾”，用作不可数名词。
rubbish指“没用的东西(被扔或将要丢弃的无用的东西)”不可回收。
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。
eg: There were piles of litter on the streets.
街上有一堆一堆的废弃物。
There will be fines for people who drop litter .
乱扔垃圾的人将被罚款。
Throw the rubbish out. 把垃圾扔出去。
The room is full of rubbish. 房间里堆满了垃圾。
Predict what Tony and Mark are talking about according to the chart.Predict the answers before listening.
Pre-listening
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.
请认真阅读句子，分析每空应填词性，预测所填内容
n. 底部；最下部
反义词是top (顶端；顶部)
fisherman
n.渔民；钓鱼的人
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.
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.
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.
Tony: No way! It used to be so clean. In fact, it has always been the nicest
river in this town.
下午晚些时候
……的底部
曾经……; 过去经常……表示过去习惯性的动作但如今已不存在。
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.
参与；扮演角色；起作用
关闭
play a part in doing sth. “参与做某事; 在做某事上起作用”。
Role-play the conversation. Then make your own conversations about the kinds of pollution in 1a.
1c
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!
参与……；在……方面起作用；在……中扮演角色
problem
solution
cause
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
2b
Listen again and complete the sentences.
The air is badly polluted because there are _______________ on the road these days.
Factories that burn coal also ____________ the air with a lot of black smoke.
There is also too much rubbish and waste. People _________________ things every day.
People are also littering in ____________ like parks. This is turning beautiful places into ugly ones.
more cars
pollute
are throwing away
public places
A reporter is interviewing
Jason and Susan about the pollution.
Listen again and complete the conversation.
Interviewer: Today we’re talking to Jason and Susan about______________________ . Jason and Susan, can you tell us about some of the problems you’ve seen
Jason: I think one problem is that the air __________________. I ___________ see blue skies anymore.
Susan: Yes, and I ___________ the stars clearly.
environmental problems
is badly polluted
hardly ever
used to see
Interviewer: What do you think _________________
this problem
Susan: Well, there are more cars on the road these days.
Jason: And factories that ___________ also pollute the air with a lot of _________________.
Interviewer: What other problems do you see
Susan: I guess there’s _______________________________ in the streets.
has caused
burn coal
black smoke
too much rubbish and waste
Jason: Yes! Every day people_______________________
like wooden chopsticks, plastic bowls and plastic bags.
Susan: They’re also ________________________, for example, during
picnics in parks. This is __________________________ ugly ones.
Interviewer: You’re right. These are serious problems for our environment.
Next, let’s talk about the things we can do to help.
are throwing away things
littering in public places
turning beautiful places into
Listen and read.
Interviewer: Today we’re talking to Jason and Susan about environmental
problems. Jason and Susan, can you tell us about some of the
problems you’ve seen
Jason: I think one problem is that the air is badly polluted. I hardly
ever see blue skies anymore.
Susan: Yes, and I used to see the stars clearly.
Listen and read.
Interviewer: What do you think has caused this problem
Susan: Well, there are more cars on the road these days.
Jason: And factories that burn coal also pollute the air with a lot
of black smoke.
Interviewer: What other problems do you see
Susan: I guess there’s too much rubbish and waste in the streets.
coal n. 煤；煤块
Listen and read.
Jason: Yes! Every day people are throwing away things like wooden
chopsticks, plastic bowls and plastic bags.
Susan: They’re also littering in public places, for example, during
picnics in parks. This is turning beautiful places into ugly ones.
Interviewer: You’re right. These are serious problems for our environment.
Next, let’s talk about the things we can do to help.
ugly adj. 丑陋的；难看的
wooden adj. 木制的；木头的
plastic adj. 塑料的 n. 塑料；塑胶
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 worried.
The problem is that…
Yes, I used to be able to see stars in the sky.
Jason
Susan
Take actions to protect environment.
Every little thing
counts.
__________
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