(共32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
Warming up
Do you know World Earth Day
Why
What
When
It is on April 22.
It was first celebrated in 1970.
The earth is more polluted.
The theme is to protect the environment and save the earth.
Plant trees.
Save energy and water.
Take public transportation.
Use plastic or wooden things less.
……
Earth Day
water pollution
noise pollution
problems
air pollution
What is the problem
What caused the problem
air pollution
Some factories burn coal and they pollute the air with a lot of black smoke.
There are more and more cars on the road. They put the waste into the air.
What is the problem
What caused the problem
noise pollution
Loud music and building houses cause the noise pollution.
What is the problem
What caused the problem
water pollution
People throw litter into the river directly.
Some factories put the waste water into the river.
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”。
Tony wants to go _________ in the river with Mark this afternoon. But Mark doesn’t want to go, _______ he went there last weekend and the river was really ______. Even the ______of the river was full of _______, and there were no more fish for fishermen to _______. Tony thinks the river used to be so ______. It has always been the _______(nice) river in this town. Mark tells Tony that people are throwing _____ (垃圾）into the river. Factories are also putting _____(废气物) into the river. They decide to write to the __________ (政府）and hope that it could _________ (关闭）the factories. They also think that everyone should help to ________ (清理 )the river and __________ (发挥作用） in protecting the environment.
Retell the conversation.
swimming
because
dirty
bottom
rubbish
catch
clean
nicest
litter
waste
government
close down
clean up
play a part
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
Hunt the words.
Activity
全班分为四个大组，每组选择一个上面（2a）所列的主题，根据主题开展词汇接力，每个人必须说出与前一个同学说的词汇有关联的单词或者短语，看看哪一个组能在规定时间（2分钟）内说出最多的相关词汇。
A. land pollution B. air pollution C. noise pollution D. water pollution
land pollution
rubbish
…
e.g. Land pollution: rubbish,
dirty, throw, dustbin,
clean up
Pre-listening
一分钟时间回顾本组同学所列词汇，写在笔记本上，看看哪个同学能在规定时间内写出最多的词汇。
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.
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 parks into ugly ones.
more cars
pollute
are throwing away
public places
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.
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 ...
2c
Key expressions:
Words:litter, bottom, fisherman, coal, public, ugly, advantage, cost, wooden, plastic, the bottom of, make a difference
Sentences:
1) The river used to be so clean.
2) People are throwing litter into the river.
3) It has always been the nicest river in this town.
4) We should write to the government.
5) I think one problem is that the air is badly polluted.
及时小结才能巩固所学知识
Summary
We love the earth. It is our planet.
We love the earth. It is our home.
Earth is our mother. Without earth,without life.
We can do it from little things,for ourselves and for our “mother”.
https://www.21cnjy.com/help/help_extract.php中小学教育资源及组卷应用平台
Unit 13 We’re trying to save the earth!SectionA1a—2c 导学案
【学习目标】
1.Key words & phrases: litter, bottom, fisherman, environmental protection ,coal , ugly;the bottom of，be full of，used to do sth.，play a part in doing sth.，clean it up，be badly polluted，too much rubbish and waste，turn…into
2. Key sentences:
① Even the bottom of the river was full of rubbish.
② The air has become really polluted around here.
③ The river used to be so clean.
3.Talk about pollution and environmental protection.
4.通过听力练习了解如何解决水污染问题，一级保护水资源的重要性。
【学习重难点】
1.掌握本课时重点词汇及句型 2.使用我们所学到的知识来谈论污染和环境保护。
【自主预习】
一、请根据中文意思写出下列重点单词。
1. v. 乱扔 n. 垃圾；废弃物____
2. adj. 丑陋的；难看的____
3. n. 底部；最下部____
4. n. 渔民；钓鱼的人____
5. n. 煤；煤块____
二、请认真阅读课文，找出下列重点短语。
6. 在河床底部____
7．充满了垃圾____
8．把垃圾扔入河中____
9．尽一份力把它清理干净____
10．使空气中充满了黑烟____
三. 完成下列句子。
11. Everyone in town _______________________________________.城里的每个人都应当尽一份力把它清理干净。
12. The air __________________ because there are ____________ cars on the road these days.空气被严重污染因为如今路上的汽车太多了。
【合作探究】
完成1a&1b
Listen again and complete the conversations.
1）What does Tony want to do later this afternoon
2）Why doesn’t Mark want to go with Tony
3）How was the river in the past
3.Retell the conversation.
Tony wants to go _________ in the river with Mark this afternoon. But Mark doesn’t want to go, _______ he went there last weekend and the river was really ______. Even the ______of the river was full of _______, and there were no more fish for fishermen to _______. Tony thinks the river used to be so ______. It has always been the _______(nice) river in this town. Mark tells Tony that people are throwing _____ (垃圾）into the river. Factories are also putting _____(废气物) into the river. They decide to write to the __________ (政府）and hope that it could _________ (关闭）the factories. They also think that everyone should help to ________ (清理 )the river and __________ (发挥作用） in protecting the environment.
4.完成1c
5.完成2a&2b.
6.Listen again and complete the conversations.
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.
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.
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.
7.完成P2-2c
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