资源简介

(共24张PPT)
Section A
1a-2c
Unit 13
We're trying to save the earth!
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。
litter
bottom
fisherman
coal
ugly
v. 乱扔 n. 垃圾；废弃物
n. 底部；最下部
n. 渔民；钓鱼的人
n. 煤；煤块
adj. 丑陋的；难看的
Check Words
speak out the Chinese immediately.
请认真阅读课文，找出下列重点短语。
1. 在河床底部____ 2．充满了垃圾____
3.把垃圾扔入河中____ 4．尽一份力去干某事____
5.使空气中充满了黑烟____
完成下列句子。
6. Everyone in town ____________________________.
城里的每个人都应当尽一份力把它清理干净。
7. 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。
Translate into Chinese.
1、at the bottom of the river
2、be full of the rubbish
3、throw litter into the river
4、play a part in doing sth.
5、fill the air with black smoke
6、play a part in cleaning it up
7、is badly polluted ，too much
The keys：
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
Lead in
What's wrong with the earth
The earth is polluted.
We're harming our planet in so many ways.
In our daily life, what kind of pollution can you think of
What has caused each kind of pollution
air pollution
water pollution
noise pollution
loud music cars rubbish planes littering ships factories smoking building houses mobile phones
noise pollution
____________
____________
____________
____________
air pollution
___________
___________
___________
___________
water pollution
____________
____________
____________
____________
loud music
planes
mobile phones
factories
cars
smoking
ships
factories
littering
rubbish
building houses
building houses
machines/
crowds…
burning/
chemical
materials…
industrial
waste …
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
listening
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
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
The environment around us _____badly __________.
For example, the river in Mark's city is really dirty. Even the________of the river is full of rubbish. And there are no more fish for __________ to catch. What caused this problem Many people are _________ ______ ______the river. And some factories are _________ _______ ______ it.
And Jason and Susan's city is another example. Factories that burn _______ are polluting the air with black smoke , and people are _________ _______ too many things every day. So there is too much rubbish and waste in the streets. Also, some people are __________ in public places. This is turning beautiful places into _________ ones.
To solve these kinds of pollution, everyone should _____ ___ ______. As students, we can ______ ____the government and ask the government to ________ _______the factories.
bottom
fishermen
throwing litter into
putting waste into
coal
throwing away
littering
ugly
play a part
write to
close down
polluted
is
Retell the conversation.
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
1.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？
拓展：短语 play a part in 中，part 前可加 important、 active 等形容词，表达“发挥重要作用”“积极参与”等。
e.g. Computers are playing an important part in our daily life.
电脑正在我们的日常生活中发挥着重要的作用。
All the students play an active part in the school activities.
所有的学生都积极参加学校的活动。
Language points
用所给单词的适当形式填空
1.Look at the sign. It says “No 　　　　(litter)”.
2.We used 　　　　(have) a party to welcome our new friend on weekends.
3.The air is 　　　　 (bad) polluted because there are too many cars now.
4. The young should do meaningful things instead of 　　　　(play) with phones all day.
5.Remember 　　　　(throw) rubbish in the bins and keep public places clean and beautiful.
The keys:1.littering　2.to have　3.badly 4.playing　5.to throw
Exercises
完成句子。
1．人们普遍认为，教育会对一个人的生活产生影响。
It's commonly believed that education can ______ ____ __________ to a person's life.
2．教室里挤满了学生。
The classroom ____ _________ ________ students.
3．因为高铁站，这个村庄已经变成了一个现代化的城镇。
Because of the high- speed railway station，the village has already _______ ______ a modern town.
4．我们应该向那些参与救助病人的医生们道谢。
We should say thanks to those doctors who have _______ ____ _________ ____ _______ the patients.
The keys:1. make a difference 2. is full/filled of/with
3. turned into 4. played a part/role in saving
Homework:
1. Try to write down a passage on your notebook.
2. Read the conversations of Unit 13 Section A 1b
and 2a on page 146 and 147.
*What is the problem
*What causes the problem
*How should the problem be solved

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