2. (教师让学生完成1a中的读前问题。)

　 T: OK. Look at the phrases in 1a, and check (√) which is pollution.

　 (学生可以讨论，然后教师与学生核对答案。)

Step 1　 Review 第一步　 复习(时间:7分钟)

(教师用上两节课的内容引出新的词汇和语言点。)

T:　 We have known some kinds of pollution. Can you list them?

Ss: Yes. Such as water pollution, soil pollution, light pollution, air pollution, noise pollution and so on.

T:　 What problems do they cause?

Ss: …

Step 2　 Presentation 第二步 　呈现(时间:15分钟)

1. T: Very good. Let’s look at the pictures.

(教师展示图片一。)

T: (指着图片。) What are they burning?

Ss: Coal. (帮学生回答并重复领读解释意思。要求掌握。)

T: Can burning coal cause pollution?

Ss:Yes. Burning coal can cause air pollution.

T: You’re right.

(教师展示图片二。)

　 T: Look at the picture. People are producing electricity by wind. (教师让学生猜测词义并领读electricity。 )

T: (指图片。) Can it cause pollution?

　 Ss: No.

T: You’re right. It can’t cause pollution.

录音机/有关噪音污染的图片/小黑板

4. Improve the sense of the students on protecting the environment.

3. Talk about noise pollution.

2. Review direct speech and indirect speech.

1. Learn some new words and phrases:

coal, be harmful to, deaf, print, a kind of, disturb

4. Homework:

　T: Please write a letter according to the report to an editor.

For example:

Dear editor,

I’m writing to you …

(板书设计)

3. (教师收集一些有关污染的图片。让学生描述图片中的污染属于哪一种。然后学生分组讨论污染所带来的影响。做一个有关不同的污染及其所带来危害的板报。)

T: Look at these pictures, and discuss in groups about different kinds of pollution and the harm caused by them. Then make a wall newspaper.

2. (让学生根据表格作报告。)

T: Now, please make a report according to the form above.

For example:

There are many kinds of pollution in our city, such as water pollution, litter, soil pollution, light pollution and noise pollution.

Water pollution can cause stomach disease, and the fish in the water will die. We should stop some people from throwing rubbish into the river and factories from pouring waste water into the river …