一、根据句意及所给中文提示、首字母或英文解释，写出句中所缺单词，每空限填一词。
1. — What should we do to avoid making the same (错误)?
— Be careful and learn from them.
2. — What did you do after watching the launch of the rocket yesterday?
— I wrote about it in my (日记). I described how the rocket flew up into the sky.
3. I'm doing a (调查)—asking classmates which planet they want to learn more about, like Mars or Venus.
4. — There will be a great (节目)about space on Friday evening.
— Sounds good. Maybe I'll watch it.
5. — It's too difficult for me to learn English well, especially g rules.
— Practise more—it helps!
6. — Susan looks sleepy in class. What's wrong?
— She w too much about her exams and can't sleep well.
7. — Do you know the Maths exam (the mark/grade you get in an exam)? I'm a bit nervous.
— Take it easy. You practised a lot before the exam, so I'm sure you'll get a good grade.
8. — It's dangerous to cross the road when the traffic lights are red.
— You're right. We should always take care to avoid such (the possibility of sth. bad happening at some time in the future).

1. mistakes 2. diary 3. survey 4. programme 5. grammar 6. worries 7. result 8. risks

二、根据句意或句子的语法要求，用括号中所给单词的适当形式填空。
1. Let's have a (discuss)about which book to choose for our class reading project.
2. We think the Earth will be (crowd)in the future.
3. The problem is not too hard, and I think you are clever enough (work)it out.
4. There are a lot of (advantage)for people to work extra hours day after day. It makes people tired.
5. If you answer all the questions (correct), you will have a chance to get the award.
6. According to the law, used batteries must be put into the red bin for (harm)waste.

1. discussion 2. crowded 3. to work 4. disadvantages 5. correctly 6. harmful

三、单项选择。
()1.The party some soft music, and then everyone began to dance.

A.talked about
B.started with
C.turned off
D.gave up

1. B

()2.I'm afraid of on the island alone because I think some animals may do harm me.

A.live；for
B.living；for
C.living；to
D.live；to

2. C

()3.— Teenagers should be encouraged to leave home to explore and discover the world.
— Exactly. ，birds should fly freely in the sky.

A.Above all
B.After all
C.In all
D.First of all

3. B