五、用所给词的适当形式填空。
1. Liu Tao is not good at (swim).
2. Let's (make) a poster about the Earth.
3. We like (chat) online.
4. I spend one hour (do) my homework.
5. We should not (drive) so much because cars use a lot of energy.
6. Yang Ling (will) draw the Earth and colour it green and blue.
7. Miss Li (buy) some flowers from the supermarket last Sunday.
8. Sam (forget) the words at first.
9. It is often rainy here in spring, but it didn't (rain) much last spring.
10. Su Hai (remember) all the words finally.
11. He (write) a story for children in the past.
12. I (try) to call you last night, but no one (answer).
13. There (be) a football match on TV yesterday evening, but I (have) no time to watch it.
14. Liu Jia practises (dance) every Saturday afternoon.
15. My parents (fly) to Beijing tomorrow.

1. swimming
2. make
3. chatting/to chat
4. doing
5. drive
6. will
7. bought
8. forgot
9. rain
10. remembered
11. wrote
12. tried; answered
13. was; had
14. dancing
15. will fly/are going to fly

六、根据上下文或首字母提示补全短文。
A g life can make us healthy and happy. We should try our to take care of the Earth. To keep the city clean, we should plant more t. We shouldn't drive so much. We shouldn't set off(燃放) fireworks either. To keep the streets and the rivers clean, we should put in the bin. Besides(另外), we shouldn't w water. We should the light to electricity.

green; best; trees; rubbish; waste; turn off; save