2．句子按功能分可分为陈述句、疑问句、祈使句和感叹句

陈述句用来说明一件事实或表达一种看法；疑问句用来提出问题；祈使句用来发出请求或命令；感叹句用来表达强烈的感情。

1．句子按结构分可分为简单句、并列句和复合句

简单句只有一个主语(或并列主语)和一个谓语动词(或并列谓语动词)。例如：

He likes swimming and often swims in the river. 并列句由并列连词把两个或两个以上简单句连在一起构成。例如：

I learn English and he learns French.

复合句中含有一个或一个以上的从句。例如：

It was raining hard when I got home yesterday.

31. As usual, he put on a show as though his trip 　　　　　a great success.

A. had been　 　 B. has been　　 　 C. were　　 　　　　 　　　 D. was 32. Looking round the town, he felt as though he 　　　　　away for ages. 　 A. has been　 　　 B. was　　 　　　　　 C. is　　 　　　　　　 　　　 D. had been 33. John is so strongly built that he looks as if he 　　　　　an elephant. 　 A. lifts　　 　　　 B. is lifting　　 　 C. lifted　　 　　　　 　　　 D. could lift 34. He described the town as if he 　　　　　it himself. 　 A. had seen　 　 B. has seen　　 　　 C. saw　　 　　　　　 　　　 D. sees 35. At that thought he shook himself, as though he 　　　　　from an evil dream. 　 A. woke　　 　　 B. wakes　　 　　　 C. would wake　 　 　　　 D. had woke 36. Most insurance agents would rather you 　　　　　anything about collecting claims until they investigate the situation. 　 A. do　　 　　　　 B. don’t　　 　　　　 C. didn’t　　 　　　 　　　 D. didn’t do 37. Although most adopted persons want the right to know who their natural parents are, some who have found them wish that they 　　　　　the experience of meeting. 　 A. hadn’t　　 　 B. didn’t have had 　　　 C. hadn’t had　　 　 　　　 D. hadn’t have 38. He insisted that the sky ____ clear up the following day.

A. would 　　　 B. should 　　　　　 C.／　　 　　　　　　　　　　 　　　 D. be 39. Without electronic computers, much of today’s advanced technology 　　　　　. 　 A. will not have been achieved　　 　　　 B. have not been achieved 　 C. would not have been achieved　 　 D. had not been achieved 40. He told her to return the book in time so that others 　　　　　a chance to read it . 　 A. may have　 　 B. will have　　 　 C. would have　 　　　　 D. might have 41. It is time that the government 　　　　　measures to protect the rare birds and animals. 　 A. takes　　 　　 B. took　　 　　　　 C. has taken　　 　　　　 D. taking 42. Some people are too particular about school records, insisting that every applicant

______ all diplomas from elementary school to university.　 　 A. has　　 　　　 B. will have　　 　 C. should have　 　　　　 D. must have 43. He was very busy yesterday; otherwise he 　　　　　to the meeting. 　 A. would come B. came　　　 　　 C. would have come　 　 D. had come 44. I must say he reads very well, and I shouldn’t be surprised if he 　　　　　acting for a living one day. 　 A. had taken up 　　　 B. takes up　　 　　 C. have taken up　　 　 D. would have taken up 45. If I had seen the movie, I 　　　　　you all about it now. 　 A. would tell　 　 B. will tell　　 　　 C. have told　　 　　　　 D. would have told 46. I hadn’t expected Henry to apologize but I had hoped 　　　　　. 　 A. him to call me up　　　　　　 　　　 B. him calling me up　　 　 C. that he would call me up　　　 D. that he will call me 47. I had hoped that John 　　　　　a year in Africa, but he stayed there only for three months. 　 A. spends　　 　　 B. spent　　 　　　　 C. would spend　　 　　 D. will spend 48. I had hoped that Jennifer 　　　　　a doctor, but she wasn’t good enough at science. 　 A. will become B. became　　 　　 C. would become　　 　 D. becomes 49. I’d rather you 　　　　　anything about it for the time being. 　 A. do　　 　　　　 B. didn’t do　　 　 C. don’t　　 　　　　　　　 D. didn’t　　 50. -Did you blame the accident on him alone ?

-Yes, but I ______so . 　 A. would rather not do　　　 　　 B. shouldn’t do　

C. shouldn’t have done　　　　 　　 D. better have not done

30. I told Sally how to get here, but perhaps I　　 for her.　　 　A. had to write it out　　　 　　　　　　　 B. must have written it out 　C. should have written it out　 　　　 D. ought to write it out　

29. Mary 　　　his letter; otherwise she would have replied before now.　　　　　　　　　　　　　　　　　　　　　　 　A. has received　　 　　　 　　　　　 B. must receive 　C. couldn't have received 　 　　　　　 D. shouldn't have received

28. Her eyes were red. She 　　.　 　　　　　　　　 　 　A. must cry 　　　　　　　　　　　　　　　　　　　 B. must be cried 　C. must have been crying 　 　　　　　　 D. may cry

27. -Must we finish the composition in class?

-No, you 　　　.　 　　　　　　　　　　　　 　A. needn't 　 　　 B. mustn't　　　　　　　 C. won't 　 　　　　　　　　　 D. shouldn't

26. You 　　　lead a horse to the water but you 　　　　not make it drink. 　　　　　　　　　　　　　　　　　　　　 　A. will…can 　　　 B. may…can　　　　　 C. may…dare 　 　　　　　　 D. dare…can

25. 　　　it be true that Albert passed the test in geography?　　 　A. May　　　　 B. Should　 　　 C. Could　 　　　　　　　 D. Would

24. He did not pass the examination. As a good student, he　　 .　 　A. mustn't have failed　 　　　　　　　　 B. may not have failed 　C. needn't have failed 　　　　　　　　 D. shouldn't have failed