一、用括号内所给词的适当形式填空。
1. Don’t throw dirty water. The floor is ______ (wood).
2. We must take action. It can make a ______ (different).
3. Mr. Wang walks to work instead of ______ (drive).
4. Everyone is against air ______ (pollute). It’s bad for our ______ (healthy).
5. Let’s go bike ______ (ride). It’s good for us all.
6. One of the ______ (advantage) of living in a big city is the pollution.
7. Once upon a time, there lived two old ______ (fisherman). They could in total catch 300 kilos of fish a day.
8. Instead of using ______ (plastic) bags, it’s better to bring reusable shopping bags to reduce waste.
9. Everyone should avoid ______ (throw) rubbish about.
10. The bottom of the river is full of rubbish, but it used to ______ (be) so clean.

1. wooden 2. difference 3. driving 4. pollution; health 5. riding 6. disadvantages 7. fishermen 8. plastic 9. throwing 10. be

()1.Don’t talk so loudly. It can make too much ______.
A.land pollution
B.noise pollution
C.air pollution
D.water pollution

B