南大网络大学英语（英语统考B下）unit 2-5

12. A family owns a home motor usually with ______.

A.more than two children B.interest in vehicles C.a baby D.much money 【批阅】回答正确！ 【答案】A

13. Americans with a small family and with two parents working usually have______.

A.a car B.two cars C.two vans D.a van

【批阅】回答正确！ 【答案】B

14. What is the main use of motor home for Americans?

A.To do some shopping with all the family members. B.To drive their children to school every day. C.To travel with all the family members for holidays. D.To visit their grandparents at weekends. 【批阅】回答正确！ 【答案】C

15. The reason why motor homes have become popular is that ______.

A.they can let families have a happier life when they go out for their holidays B.they can take people to another city when people are free C.big families can put more things in motor homes

D.some people think motor homes are cheap 【批阅】回答正确！ 【答案】A

语法词汇（共5小题，每小题4分，满分20分）

16. He served in the army for ______ before he went to college.

A.a year and half B.one year and a half C.a year and a half D.one and a half year 【批阅】回答错误！

17. The TV doesn’t work well, so something ______ wrong. I’ll have it repaired.

A.could have gone B.should have gone C.must have gone D.ought to have gone 【批阅】回答正确！ 【答案】C

18. It’s vital that enough information ______ collected before the project starts.

A.is B.can be C.must be D.be

【批阅】回答正确！ 【答案】D

19. The idea sounds very good but whether it will work in ______ is not sure.

A.practice B.reality C.advance D.life

【批阅】回答错误！

20. The bridge was named ______ President Lincoln who tried to end racial discrimination in the United States.

A.because of B.for C.after D.before

【批阅】回答正确！ 【答案】C 完形填空（共10小题，每小题3分，满分30分） Fire can help people in many ways. Fire can 21 water, warm houses, give light and cook. But fire can burn things, too. Nobody knows 22 people began to use fire. One story from Australia 23 about a man very, very long time ago. He went up to the sun by a rope and brought fire down. Today people know how to 24 a fire with matches. Children sometimes like to play with them. But matches can be very 25 . Fire kills many people every year. So you must be careful with 26 . You should also learn to 27 fires. Fires need oxygen. Without oxygen they will die. There is 28 in the air. Cover a fire with water, sand or sometimes with your coat. This keeps the air 29 a fire and kills it. Be careful with fire, and it will help you. Be careless with fire, and it might 30 you. 21<>

A.warm B.heat C.hot D.cook

【批阅】回答正确！ 【答案】B

22

A.where B.when C.what D.how

【批阅】回答正确！ 【答案】D

23

A.says B.talks C.tells D.reads

【批阅】回答正确！ 【答案】A

24

A.set B.start C.cause