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

2 . 太多的糖对我们牙齿有害。
Too much sugar is ________ our teeth.

3 . 太多的肉对我们的健康不好。   
Too much meat ________ our health.

4 . 喝冰水有害健康。
Drinking icy water _______________ health.

5 . 收集贝壳对环境有害。
Collecting shells ________ ________ ________ the environment.

6 . Smoking is harmful ________ our health.

7 . 空气污染和水污染对地球有害。
Air pollution and water pollution are __________ __________ the Earth.

8 . 吃太多雪糕对我们牙齿有害。
Eating too much ice cream ________ ________ ________ our teeth.

9 . Eating too much meat is _________ to your health. You’d better eat more vegetables.

A．good

B．well

C．bad

D．harmful

10 . Playing computer games too much is ________ (harm) to our health.