摘要：解析：“祈使句 + and + 陈述句” 表示如果做到了祈使句的内容，就会有后面好的结果。这里努力学习就会通过考试，所以用and。

中英语各类连词选择填空专练五十道及参考答案解析：

1. Work hard, ______ you will pass the exam.

A. and B. but C. or D. so

2. I like music, ______ my brother likes sports.

3. Hurry up, ______ you'll be late for school.

4. He was very tired, ______ he still went on working.

5. Study hard, ______ you won't catch up with your classmates.

6. ______ it was raining hard, they still went on playing football.

A. Although B. If C. Because D. Since

7. I won't go to the party ______ I'm invited.

A. if B. unless C. when D. as

8. You will be late ______ you don't get up early.

9. ______ he is very old, he can still work eight hours a day.

A. Although B. Because C. If D. Since

10. ______ you study hard, you will get good grades.

A. As long as B. As soon as C. As well as D. As far as

11. I will call you ______ I arrive in Beijing.

A. as long as B. as soon as C. as well as D. as far as

12. Tom is ______ clever ______ he can answer all the questions.

A. so; that B. such; that C. too; to D. enough; to

13. He is ______ a clever boy ______ he can answer all the questions.

14. The box is ______ heavy ______ I can't carry it.

15. It was ______ a fine day ______ we went out for a walk.

16. I like apples, ______ my sister likes bananas.

A. while B. when C. as D. since

17. ______ I was watching TV, my mother was cooking.

A. While B. When C. As D. Since

18. ______ he came back, I was doing my homework.

19. We should do ______ the teacher told us.

A. as B. like C. that D. which

20. He speaks English ______ well ______ a native speaker.

A. as; as B. so; as C. both; and D. either; or

21. ______ you ______ he is able to ski, but I am.

A. Both; and B. Not only; but also C. Either; or D. Neither; nor

22. ______ my father ______ my mother is a teacher. They are both doctors.

23. You can ______ stay at home ______ go shopping with me.

A. both; and B. not only; but also C. either; or D. neither; nor

24. The film was ______ boring ______ I fell asleep.

25. She is ______ young ______ go to school.

26. ______ you ______ I am going to the park tomorrow. One of us must stay at home.

27. ______ Lucy ______ Lily likes dancing. They both like singing.

28. ______ it is late, I have to go home now.

A. Because B. Since C. For D. As

29. We didn't go to the park ______ the bad weather.

A. because B. because of C. so D. since

30. He got up late, ______ he was late for school.

A. because B. so C. but D. or

31. I like this book ______ it is very interesting.

32. ______ you study hard, you won't pass the exam.

A. If B. Unless C. As D. When

33. Please call me ______ you get to Beijing.

A. as soon as B. as well as C. as long as D. as far as

34. He runs ______ fast ______ no one can catch up with him.

35. She is ______ a kind girl ______ everyone likes her.

36. ______ I was walking in the street, I met an old friend.

A. While B. When C. As D. All of the above

37. ______ he is poor, he is happy.

38. You can come ______ on Monday ______ on Tuesday.

39. ______ the teacher came in, we were talking.

40. We will have a picnic ______ it doesn't rain tomorrow.

A. if B. unless C. until D. when

41. He didn't leave ______ his mother came back.

A. until B. while C. when D. as

42. ______ he was ill, he still came to school on time.

43. She is ______ young ______ she can't go to school.

44. ______ you work hard, you will succeed.

45. The book is ______ interesting ______ I can't put it down.

46. ______ you ______ he has been to the Great Wall.

47. You can ______ sing ______ dance. Choose one.

48. ______ he is very busy, he still helps me with my English.

49. We will go fishing ______ it is fine tomorrow.

50. ______ he was tired, he still went on running.

答案及解析

1. 答案：A

- 解析：“祈使句 + and + 陈述句” 表示如果做到了祈使句的内容，就会有后面好的结果。这里努力学习就会通过考试，所以用and。

2. 答案：B

- 解析：前半句说我喜欢音乐，后半句说我哥哥喜欢运动，前后是转折关系，用but。

3. 答案：C

- 解析：“祈使句 + or + 陈述句” 表示如果不做到祈使句的内容，就会有不好的结果。这里是快点，否则上学迟到，用or。

4. 答案：B

- 解析：他很累，但是仍然继续工作，前后是转折关系，用but。

5. 答案：C

- 解析：努力学习，否则你赶不上你的同学，“祈使句 + or + 陈述句” 结构，or表示否则。

6. 答案：A

- 解析：although引导让步状语从句，虽然雨下得很大，他们仍然继续踢足球 。

7. 答案：B

- 解析：unless = if not，我不会去派对，除非我被邀请，即如果不被邀请就不去，用unless。

8. 答案：A

- 解析：如果你不早起就会迟到，if引导条件状语从句。

9. 答案：A

- 解析：虽然他很老了，但仍然能一天工作八小时，although引导让步状语从句。

10. 答案：A

- 解析：as long as只要，只要你努力学习，你就会取得好成绩。

11. 答案：B

- 解析：as soon as一……就……，我一到北京就给你打电话。

12. 答案：A

- 解析：so + 形容词/副词 + that从句，表示如此……以至于…… ，clever是形容词，用so...that。

13. 答案：B

- 解析：such + a/an + 形容词 + 可数名词单数 + that从句 ，a clever boy是名词短语，用such...that。

14. 答案：A

- 解析：so + 形容词 + that从句，heavy是形容词，箱子如此重以至于我搬不动，用so...that。

15. 答案：B

- 解析：such + a/an + 形容词 + 可数名词单数 + that从句 ，a fine day是名词短语，用such...that。

16. 答案：A

- 解析：while表示对比，我喜欢苹果，而我妹妹喜欢香蕉。

17. 答案：A

- 解析：while引导时间状语从句，强调两个动作同时进行，我看电视的时候妈妈在做饭。

18. 答案：B

- 解析：when引导时间状语从句，当他回来的时候，我正在做作业，when后面常接短暂性动词came。

19. 答案：A

- 解析：as按照，我们应该按照老师告诉我们的去做。

20. 答案：A

- 解析：as...as和……一样，他英语说得和母语者一样好。

21. 答案：D

- 解析：neither...nor既不……也不…… ，连接两个并列主语时，谓语动词遵循就近原则，这里根据is可知选neither...nor。

22. 答案：D

- 解析：根据They are both doctors可知父母都不是老师，用neither...nor。

23. 答案：C

- 解析：either...or要么……要么…… ，你可以要么待在家，要么和我去购物。

24. 答案：A

- 解析：so + 形容词 + that从句，电影如此无聊以至于我睡着了，用so...that。

25. 答案：C

- 解析：too + 形容词/副词 + to do sth.太……而不能…… ，她太小不能上学，用too...to。

26. 答案：C

- 解析：either...or要么……要么…… ，明天要么你要么我去公园，我们其中一个必须待在家。

27. 答案：D

- 解析：根据They both like singing可知Lucy和Lily都不喜欢跳舞，用neither...nor。

28. 答案：B

- 解析：since既然，既然很晚了，我现在必须回家了 。since表示原因时，语气比because弱。

29. 答案：B

- 解析：because of因为，后接名词短语，the bad weather是名词短语，因为坏天气我们没去公园。

30. 答案：B

- 解析：他起床晚，所以上学迟到了，so表示所以。

31. 答案：A

- 解析：我喜欢这本书，因为它很有趣，because表示原因。

32. 答案：B

- 解析：unless = if not，除非你努力学习，否则你不会通过考试，用unless。

33. 答案：A

- 解析：as soon as一……就…… ，你一到北京就给我打电话。

34. 答案：A

- 解析：so + 副词 + that从句，fast是副词，他跑得如此快以至于没人能追上他，用so...that。

35. 答案：B

- 解析：such + a/an + 形容词 + 可数名词单数 + that从句 ，a kind girl是名词短语，用such...that。

36. 答案：D

- 解析：while，when，as都可以表示当……时候 ，这里三个词都符合语境。

37. 答案：A

- 解析：虽然他很穷，但是他很快乐，although引导让步状语从句。

38. 答案：C

- 解析：either...or要么……要么…… ，你可以要么周一来要么周二来。

39. 答案：B

- 解析：when引导时间状语从句，当老师进来的时候，我们正在说话，when后可接短暂性动词came。

40. 答案：A

- 解析：if引导条件状语从句，如果明天不下雨我们就去野餐。

41. 答案：A

- 解析：not...until直到……才…… ，他直到妈妈回来才离开。

42. 答案：A

- 解析：虽然他生病了，但仍然按时来学校，although引导让步状语从句。

43. 答案：A

- 解析：so + 形容词 + that从句，她如此小以至于不能上学，用so...that。

44. 答案：A

- 解析：as long as只要，只要你努力工作，你就会成功。

45. 答案：A

- 解析：so + 形容词 + that从句，这本书如此有趣以至于我放不下它，用so...that。

46. 答案：B

- 解析：not only...but also不但……而且…… ，连接两个并列主语时，谓语动词遵循就近原则，这里根据has可知选not only...but also。

47. 答案：C

- 解析：either...or要么……要么…… ，你可以要么唱歌要么跳舞，选一个。

48. 答案：A

- 解析：虽然他很忙，但仍然帮我学英语，although引导让步状语从句。

49. 答案：A

- 解析：if引导条件状语从句，如果明天天气好我们就去钓鱼。

50. 答案：A

- 解析：虽然他很累，但仍然继续跑步，although引导让步状语从句。

来源：蒙古元素