1. (通过本节课的学习，让学生认识到噪音污染的来源及其危害，通过学生的小组活动，调查各种各样的噪音污染以及怎样更加有效地加以改进。)
T: Make a survey in groups about the noise pollution. Before you do it, I’d like to say
something about noise pollution in our school, in my home and my neighborhoods.
(通过教师的示范作用，使此练习变得更加容易。)
T: In our school there is noise pollution everywhere … And in my home, my son likes NBA
games. He often watches it loudly… And in some public places, people speak loudly…
Discuss in groups and fill out the form.
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Place Name |
At
school |
At home |
In other
public places |
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S1 |
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S2 |
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S3 |
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6. (核对答案后)
T: What are the bad effects caused by noise pollution?
(板书并解释)
|
effect |
Ss: It makes people…
T: Are there any countries trying to solve the environmental problems?
Ss: Yes, there are.
Step 3 Consolidation 第三步 巩固(时间:8分钟)
3. T: You know, playing loud rock music at midnight is a kind of pollution.
(板书解释并要求掌握)
|
a
kind of |
T: Why?
Ss: Because playing loud rock music can make lots of noise.
T: Yes. It not only disturbs others but also does great harm to hearing.
(板书，领读并讲解disturb，要求掌握。)
|
disturb do harm to=be harmful to |
T: Let’s look at the picture.
(教师展示图片三。)
T: (指图片问。) What are they doing?
Ss: They are printing newspapers. (教师帮助回答并释义，领读print且要求掌握。)
T: The machines are making loud noise. Can they hear each other clearly?
Ss:No.
T: They have to say the words again and again. If they work there for a long time, they may go deaf. (教师指着耳朵领读go deaf并解释deaf: unable to hear，且要求掌握。)
T: That is to say, they will have hearing loss.
(板书，并要求掌握)
|
hearing loss |
(教师展示图片四。)
T: (教师指着图片。) They are working in the sawmill. And it also makes loud noise. It may disturb the people nearby. They can’t sleep well.
(板书并解释)
|
sawmill nearby |