Lesson 3 Fire-Lesson 4 Air教案
一. 教学内容：
Unit 5 The world around us
Lesson 3—4
（一）课标词汇
（二）重点短语
（三）重点句型
（四）better than的用法
二. 周知识总结与归纳：
（一）课标词汇
1. meat
2. gas
3. wood
4. cheap
5. village
6. quick
7. electricity
8. matter
9. eye
10. hurt
11. smoke
12. dust
13. worker
14. burn
15. air
16. dirty
17. pollution
（二）重点短语
1. chicken wings
2. live in a village
3. the smoke from the traffic
4. look at
5. a lot of
6. come from
7. power station
8. construction sites
9. some more
10. like…better than
（三）重点句型
1. I like wood better than gas.
2. I like wood better than gas because it is cheaper.
Why do you like wood better than gas?
3. She cooks with wood.
__________ does she cook?
4. What’s the matter?
What’s the matter with you?
What’s __________ with you?
5. The air pollution comes from the traffic.
Where does the air pollution come from?
（四）better than的用法]
1. I like charcoal better than gas. The food tastes nicer.
2. I like wood better than gas. It is cheaper.
3. I like gas better than wood. It is quicker.
4. I like electricity better than gas. It is cleaner.
（五）用英语谈论空气污染
1. air pollution
2. It is the smoke from the traffic.
3. Look at the smoke from the fire. The workers are burning rubbish there.
4. The air is dirty.
5. There is a lot of pollution.