1 . The experience formed a close b________ between us. (根据首字母单词拼写)

2 . It’s important to keep a b__________ between work and relaxation.

3 . 这些伟人懂得，知识和对世界的认知才是值得追求的；正如一些人所言，和全世界的金钱相比，这些对个人而言更重要，对全人类而言更有益。
These men knew that knowledge and understanding are things to fight for; more vital to a man, and ________, some might say, than all the money in the world.

4 . We all need to get involved in saving energy ________ it's at work, at home, or at school.

A．unless

B．once

C．whether

D．because

5 . Liu sings _________ (beautiful) and won the first prize in the singing competition. (所给词的适当形式填空)

6 . In the last few years, many high-speed rail systems ___________ (build) in China. （所给词的适当形式填空）

7 . Last year，he finally achieved ________ ________ ______（突破了极限） and ________ ___________ _____________（做出了突破）.

8 . 用所给词或词组的正确形式填空

1. The teacher asked the students to_______________a poem about bees.
2. The idea of living in the country doesn’t_________________me at all.
3. They were_________________how to spend the money.
4. The school_________________the safety of the children in school hours.
5. Everything must be done_________________rivers_________________being polluted.
6. I have no doubts that these measures will___________the improving of the traffic of the city.
7. I’m_____________talking to you. You never listen to me.
8. _________________this month we have covered ten lessons in our grammar book.
9. The plants_________________the rain.
10. The driver_________________his car at the gate of the school.

9 . Peter has previous experience, ______ I think he’s the right person for the job.

A．or	B．but
C．for	D．so

10 . It is more important than ever to develop one’s maths, science and computer skills _______technological change is accelerating.

A．though

B．unless

C．until

D．because