3. 對……有害       

2. 在中國南部        

 1. 聽說        

5. 邁克，你要多做戶外運動而不是整天在網(wǎng)上聊天。

Mike,you should do more outdoor activities           chat?ting online all day.

4. 我正在盡力減少對糖和咖啡因的攝取量。

I'm trying to        on sugar and caffeine.

3. 他可以自己解決這個問題。

He can        by himself.

2. 我在瓶底發(fā)現(xiàn)了一些奇怪的東西。

I found something strange           the bottle.

1. 你參與大掃除了嗎？ Did you        in cleaning-up?

(   ) 5. Our actions can make a difference and      a better future.

   A. lead   B. leads

   C. lead to   D. leads to

(   ) 4. Riding a bike to school is good for        ，and it doesn't cost

   A. health;nothing   B. healthy;anything 

    C health;anything   D. healthy;something