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Let students know the importance of protecting the environment.Step 3Work in pairs. Look at the pictures and talk about them.
The factory is causing a lot of pollution.
There are some glasses and paper.
Some wastes can be recycled in this factory.
Know the fact of the environment.Step 4Listen and complete the sentences.
1. The factory is causing a lot of __________.
2. There should be some ________ to stop the pollution.
3. We can ________ waste products, such as ________ and paper in a recycling centre.Step 5Listen to the conversation and find out what polluted the environment.
Factories and cars polluted environment.Step 6复习词汇转换，因为这是扩大词汇量的方法。单词合成在考试中是很重要的，教师利用幻灯片向同学们展示了合成名词、形容词等及前缀和后缀，词义转换。让学生熟悉单词在句中的正确运用。
Let Ss know words change into another words,and supple them.Step 7Look through the passage and complete the notes.
Pollution problems and what the students can do.Know how to make notes.Step 8Complete the passage with the correct form of the words in the box.
1. enemy 2. factories 3. Kill 4. Pollute 5. Spreads
6. causes 7. oilStep 9List the pollution problem in your city . Choose one problem and say what should be done about it.
1.—The white pollution is our city is getting worse. What can we do to stop it?
—I think we can use less plastic bags and more cloth bags.
2.—The water pollution is our city is getting worse. What can we do to stop it?
—We can use less chemical products.How to sove the environmental pollution.Step 10
总结回顾：本课时主要短语和句型
1. such as
2. spread over cities and villages
3. It’s no use talking about things we can’t do.
4. The air pollution in our city is getting worse. What can we do to stop it?
5. If everyone starts to do something, the world will be saved.
Step 11Homework:
1. Preview the new words and expressions in Unit 2.
2. Discuss with your parents and find out more ways to protect the environment. Then write them down.
Know how to write a passage about how to protect the environment.