2．为了更好的保护环境，我们做出了一项重要决定，那就是阻止别人往河里倾倒污水。

　 In _______ _________ ________the environment, we_________ ________ important _________. That is to _________others from __________waste water into the river.

1．我认为对于青少年来说，跟人交流问题是很重要的。

　 I think it’s ______for teenagers_______ ________problems _________with someone.

5.　　　 Can you please tell me what to do ? (改写句子，使句意不变)

Can you please tell me _________I _________do?

4.　　　 The box is so heavy that I can’t carry it. (改写句子，使句意不变)

(1)　　 The box is _________heavy for me _________ __________.

(2)　　 The box ________ _______ ________for me _________ carry.

(3)　　 This　 is _________a ________box _________I can’t carry it.

3.　　　 The brain needs to rest in order to work at its best. (划线提问)

________ _______the brain _________to rest?

2.　　　 It’s important for everyone to get the right amount of sleep. (改写句子，使句意不变)

__________the right amount of sleep _________important for everyone?

1.　　　 I think less sleep affects my results. (改为一般疑问句)

_______you _______less sleep ________your results?

10.　 Can you come up with some good ways of __________(clean) up the ocean and _________(keep) the environment tidy?

9.　　　 To have good ___________(sleep) habits, it’s better to sleep at regular times.

8.　　　 Some people have trouble______________(sleep), especially if they are serious ________(stress) about something.