虚拟语气和情态动词.doc

从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。 1. Are you in a hurry? No, in fact Ive got plenty of time. I _ wait. A. must B. need C. may D. should2. Someone is knocking at the door. _ it be Venis? No, it _ be her; she left for New York this morning. A. Can; mustnt B. Might; cant C. May; doesnt D. Can; cant3. He didnt agree with me at first, but I _ persuade him to sign the agreement later. A. could B. might C. should D. was able to4. Is there a movie on in the cinema tonight? There _ be. I will phone the cinema and find it out. A. might B. should C. can D. could5. You _ be careful when you cross here the traffic lights arent working. A. can B. ought to C. might D. may6. You _ out last night. I called you several times, but nobody answered. A. must have been B. must be C. might have been D. could be7. You _ fail to pass the entrance examination if you dont study harder. A. shall B. could C. must D. should8. When I was studying at Beijing University, I _ take a walk along the lake every evening. A. will B. would C. could D. shall9. The party turned out to be a failure. I would rather _ it. A. not have attended B. not attend C. not to attend D. not to have attended10. Sir, you _ be sitting in this seat. It is for women or children only. A. cant B. oughtnt to C. wont D. neednt11. Shall I tell Li Ming about the matter? No, you _. He has known about it already. A. oughtnt to B. neednt C. shouldnt D. mustnt12. Must I take a bus? No, you _. You can walk there. A. must not B. dont C. dont have to D. had better not to13. Why do you make me do so? I am sorry that you _ do such a thing. A. would B. can C. should D. may14. Will you stay for lunch? Sorry, I _. My brother is coming to see me. A. mustnt B. cant C. neednt D. wont15. What would have happened _, as far as the riverbank? A. if Bob has walked farther B. if Bob should walk farther C. had Bob walked farther D. should Bob walk farther16. Oh, Jane, youve broken another glass. You ought _ when you washed it. A. be careful B. to care C. have cared D. to have been careful17. Its high time we _ to the theater. A. will go B. shall go C. are going to D. went18. Could I use your telephone? Yes, of course you _. A. could B. will C. can D. might19. Its strange that they _ nothing about this matter. A. should know B. would know C. had known D. knew20. Do you still remember the day when we went to the Great Wall? I cant remember it well, but _ sometime last autumn? A. might it be B. could it have been C. could it be D. must it have been21. I cant get through to the general managers office anyhow. The line is busy. Someone _ the telephone. A. must use B. uses C. must have been using D. must be using 22. He suggests we _ to the cinema at once, otherwise we will be late. A. must go B. go C. will go D. would go23. If only he _ me yesterday! A. had seen B. would see C. should see D. saw24. If you _ wait a moment, Ill go and find our manager. A. can B. should C. will D. must25. It is rather cold here. Shall we light a fire? No, we _ because things are easy to catch fire. A. wont B. cant C. mustnt D. neednt26. If I _ you, I _ more attention to English idioms and phrases. A. was; shall pay B. am; will pay C. would be; would pay D. were; would pay27. Would you have told him the answer had it been possible? I would have, but I _ so busy then. A. had been B. were C. was D. would be28. Can children swim in this pool? Yes. However, at no time _ they do so by themselves. A. dare B. should C. need D. could29. Kunming is called “Spring City”, but it _ snow in winter. A. shall B. can C. must D. might30. Whats the matter with you? Oh, Im not feeling well in the stomach. I _ so much fried fish just now. A. shouldnt eat B. mustnt have eaten C. shouldnt have eaten D. mustnt eat31. You look so upset. Whats wrong with you? The door _. Can you help me? A. wont open B. wont be opened C. cant open D. cant be opened32. Mum, I climbed to get the Teddy Bear from the top of the shelf. My goodness! You _ yourself. You mustnt do that next time. A. must have hurt B. should have hurt C. may have hurt D. can have hurt33. Children under 12 years of age in that country _ be under adult supervision when he is in a public library. A. must B. may C. can D. need34. “The interest _ be divided into five parts, according to the agreement made by both sides,” declared the judge. A. may B. should C. must D. shall35. I dont mind telling you what I know. You _. Im not asking you for it. A. mustnt B. may not C. cant D. neednt36. Mum, Ive been studying English since 8 oclock. _ I go out and play with Tom for a while? No, Im afraid not. Besides, its raining outside now. A. Cant B. Wouldnt C. Dare not D. Wont 37. Who is the girl standing over there? Well, if you _ know, her name is Mabel. A. may B. can C. must D. shall38. The driver has drunk too much wine and dangerous things _ happen at any time. A. should B. can C. must D. need39. We _ booked. Look, this restaurant is almost empty. A. must have B. cant have C. should have D. neednt have40. Listen! The fire engine is roaring. There _ be a fire somewhere. A. should B. must C. will D. ought to答案及部分解析：1-5 CDDAB 6-10 AABAB 11-15 BCCBC 16-20 DDCAB21-25 DBACC 26-30 DCBBC 31-35 ACADD 36-40 ACADB 1. may表示“可以”。2. can用在疑问句和否定句中，表示可能性的推测。cant表示“不可能”。3. 情态动词can和be able to都可表示能力。当表示“过去成功地做了某事”时，常用was/were able to。4. 由下文的“I will phone the cinema and find it out”可知此处应用might。may/might用在肯定句中，表示可能性的推测。5. ought to表示劝告。6. 题意为“我昨天晚上打了几次电话都没有人接，你一定是出去了”。must have done常用来表示对过去发生情况的肯定推测。7. shall用于二、三人称，表示说话者的意愿，有命令、警告、威胁、强制、允诺、决心之意。此题用shall，表示警告。8. 情态动词would可以表示过去经常性或习惯性的动作。与used to相比，would不含有“现在已无此习惯”的意义。9. 题意为“那次聚会以失败告终，我宁愿没参加”。would rather （not）have done表示的是过去发生的情况。10. 由题意可知此处应用oughtnt to表示“不应该”。11.由he has known about it already可知此处应用neednt表示“没有必要”。另外注意：shall用于一、三人称的疑问句时，常表示征求对方意见或请求对方给予指示。12. dont have to不必。13. should常用在形容词sorry, anxious, happy, delighted等后接的that从句中，表示“竟，会”等意义。15. had Bob walked farther=if Bob had walked farther。在虚拟条件状语从句中，省略if时要把had, should, were提到句首。16. ought to have done表示“过去本来应该做某事而事实上并没有做到”。17. Its（high/about） time后所接从句中，从句谓语动词常用过去式形式。18. 问句中情态动词could表示委婉客气。19. 题意为“他们竟然对此事一无所知，真令人奇怪”。“Its strange, possible.+that从句”的句型中，从句谓语常用should+动词原形。20. can/could have done表示对过去发生情况的可能性推测，常用于否定句或疑问句中。21. must be doing表示对现在正发生情况的肯定推测。22. suggest, order, demand, request等表示“建议或命令等”的动词后接宾语从句，从句谓语常用（should）+动词原形。23. if only但愿。如果表示现在的愿望，句中谓语动词常用过去式；如果表示将来的愿望，句中谓语动词常用would/could+动词原形；如果表示过去的愿望，句中谓语动词常用had+过去分词。24. will表示“愿意”。25. mustnt表示“禁止”。26. 表示与现在的事实相反，从句用一般过去时，主句谓语常用would/could/should/might+动词原形。27. had it been possible=if it had been possible。but后分句是描述当时的事实，故用一般过去时态。28. at no time（在任何时候都不）位于句首时，句子应用部分倒装语序。should应该。29. 此处用can表示“一时之可能”。31. The door wont open. 这门打不开。will表示功能，可译为“能，行”。又如：Each classroom will seat 60 students. 每间教室能容纳60名学生。32. may/might have done表示对过去发生情况的可能性推测，常用于肯定句中。33. 题意为“在那个国家12岁以下的儿童在公共图书馆时必须（must）有成年人监护。” 34. 由judge（法官）可断定此处有强制、命令的语气，故填shall。36. 此处意为“难道我不能（cant）出去和汤姆玩一会儿吗？”38. should表示很可能。39. neednt have done表示“本来不需要做某事而事实上已经做了”。40. must be表示对现在发生情况的肯定推测。5