1 . Eating too much candies does harm to our teeth.

A．is helpful to

B．is good for

C．is bad for

D．is strict with

2 . 污染的空气对我们的健康有害。保持空气新鲜和清洁是必要的。
Polluted air does _________ _________ _________ _________. It’s necessary to keep air fresh and clean.

3 . Smoking ______ your health, so please give it up. (对……有害)

4 . Too much screen time ___________________ your eyes. So don’t watch TV or use your mobile phone too often.（对……有害）

5 . —Do we need to hand in phones when we are at school like last term?
—Yes, I think it is necessary. Using phones in class does ________ to our study.

A．harm

B．harmful

C．harmless

6 . 根据每小题所提供的图画情景和提示词，写出一个与图画情景相符的句子。

1. _________________________________________________________
2. _________________________________________________________
3. _________________________________________________________
4. _________________________________________________________
5. _________________________________________________________

7 . 看图写话。根据每小题所提供的图画情景和提示词，写出一个与图画情景相符的句子。
1. made, cloth
___________________________________________
2. harm, health
___________________________________________
3. play, now
___________________________________________
4. been, seven years
___________________________________________
5. who, classmate
___________________________________________

8 . Eating too much junk food ________ our health. (对……有害)

9 . Smoking is bad for your health so you’d better give up smoking. (保持句意基本不变)
Smoking does ________ ________ your health so you’d better give up smoking.

10 . —I live near an airport. There is always lots of noise.
—You’d better move to another place. Too much noise ________ your hearing.

A．is pleased with

B．is similar to

C．does harm to