人教版英语九年级下册Unit 13第十三单元Unit 13 教案
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2021年春季
1 2021
Unit 13 We’re trying to save the earth!
一、教学目标：
1. 语言知识目标
基本词汇：litter, bottom, fisherman, coal, ugly, advantage, cost,
wooden, plastic, takeaway, bin, shark, fin, cruel, harmful,
chain, ecosystem, industry, law, scientific, afford,
reusable, transportation, recycle, napkin, upside, gate,
bottle, president, inspiration, iron, work, metal,
creativity,
基本词组：be harmful to, at the top(of sth.), take part in, turn off, pay
for, take action, throw away, put sth. to good use, pull…
down, bring back
基本句型：We’re trying to save the earth.
The river used to be so clean.
The air is badly polluted.
No scientific studies have showed that shark fins are
good for health.
We should help save the sharks.
2. 技能目标: 能正确运用现在进行时，现在完成时，被动语态，情态
动词和used to 句型。
3. 情感目标: 有环境危机意识，学会关注环境保护环境。
二、教学重难点：
1. 教学重点：
（1）能正确运用现在进行时，现在完成时，被动语态，情态动词
和used to 句型。
（2）保护环境的措施方法。
2. 教学难点：能正确运用现在进行时，现在完成时，被动语态，情 2021年春季
2 2021
复习题 练习
试卷 测试题
教案等集合 态动词和used to 句型。
Section A 1 (1a-2d)
I. Presentation
Show the picture of the earth and tell students the earth is polluted
now.
For example:
(1) The factories that burn coal pollute the air with a lot of black smoke.
(2) Factories put waste into the river.
(3) People should throw away litter in the bin.
(4)There are more cars on the road.
II. Learning
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
noise pollution air pollution water pollution
____________ ___________ _____________
____________ ___________ _____________
____________ ___________ _____________
____________ ___________ _____________
Keys : noise pollution loud music planes mobile
phones building houses
air pollution factories smoking cars building houses
water pollution ships rubbish littering factories
III. Listening
1. 1b Listen and complete the sentences.
What was the problem? The river was _____________. Even the bottom (底 2021年春季
3 2021
复习题 练习
试卷 测试题
教案等集合 部) of the river was full of ________. There were no
more ______ for fishermen (渔民) 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.
Keys: really dirty rubbish fish litter waste government
close down clean up
2. Listen again and check (√) the sentences you hear.
1) We could go fishing in the river.
2) The river was really dirty.
3) The river has always been the nicest river in this town.
4) We should ask the teachers for help.
Keys: 2 3
IV. Practice
1. Role-play the conversation in 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!
2. Make conversations using the pollution in 1a.
A: The river has always been the nicest river in this town.
B: Yes, it used to be so clean.
A: But I was there last weekend and the river was really dirty.
B: What caused the problem? 2021年春季
4 2021
A: People are throwing litter into the river.
B: What should we do?
A: Factories are also putting waste into the river.
B: Yes, everyone in this town should play a part.
A: We should write to the government and ask them to close down the
factories.
B: What else can we do?
A: Everyone should help to clean up the river.
V. 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. Every student should try to study hard in order to study in a
university.
为了进入大学学习，每个学生都应该努力学习。
2. Here are some words related to different kinds of pollution.
be related to 与……有关
e.g. I am not related to him in any way. 我和他无任何关系。
3. 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。
play a part 在……中扮演角色
e.g. He was invited to play a part in this TV play.
他被邀请参加这个电视剧的演出。
4. Even the bottom of the river was full of rubbish.
Yes, but people are throwing litter into the river.
