情态动词是每年高考考试的热门也是难题，每年单项填空题必考一题。考试知识点集中在：情态动词表示推断的基本使用方法及不同;情态动词否定式的使用方法辨析：情态动词+have done的使用方法不同等。 虚拟语气在高考考试命题中不是重点，但难题。考试知识点常集中在含蓄条件句与主语、宾语从句等特定句型中虚拟语气的用法上，因此考生应熟练学会含蓄条件句中主从句的时态需要与一些典型句型中虚拟语气的具体形式。 虚拟语气考试知识点透析 考试知识点1、虚拟语气的基本使用方法 1.与目前事实相反的虚拟语气，基本结构为：主语+动词的一般过去时(be动词用were)+其他成分+if+should/would/could...+动词原形+其他成分。比如： ①If it were not for the fact that she ______ sing，I would invite her to the party. A.couldnt B.shouldnt C.cant D.might not 分析 句意为：假如不是由于她不会唱歌的事实，我会邀请她来参加那次聚会的。that从句为同位语从句，描述的是事实，用陈述语气。正确答案为C。 2.与过去事实相反的虚拟语气，基本结构为：主语+动词的过去完成时+其他成分+if+should/would/could...+have done+其他成分。比如： If the weather had been better，we could have had a picnic.But it ______ all day. A.rained B.rains C.has rained D.is raining 分析 句意为：假如天气好的话，大家是可以去野餐的，但下了一天的雨。句子前半部分陈述的是与过去事实相反的事情，所以用了虚拟语气。下了一天的雨是事实，所以用陈述语气。由于是发生在过去的事实，所以正确答案为A。 3.与以后事实相反的虚拟语气，基本结构为：主语+动词的一般过去时/should do/were to do+其他成分+if+should/would/could...+动词原形+其他成分。比如： If I ______ plan to do anything I want to，Id like to go to Tibet and travel through as much of it as possible. A.would B.could C.had to D.ought to 分析 句意为：假如我可以计划做我想做的事情，我想去西藏并且尽量多玩一些地方。句子描述的是与以后事实相反的事情，所以正确答案为B。 考试知识点2、含蓄虚拟条件句 如此的虚拟句不含有if从句，而是以but for/without/or/otherwise等引导的句子代替if从句，主句的谓语动词的形式与前面虚拟语气的基本使用方法相同。比如： Thank you for all your hard work last week.I dont think we ______ it without you. A.can manage B.could have managed C.could managed D.can have managed 分析 由语境可知这里要表达的意思是：假如没你们辛勤的工作，大家不可能处置好这件事。非常显然，这是对过去发生的事实的虚拟，所以要用could have done，故应选B。 考试知识点3、主从句时间不同的虚拟条件句 在有的虚拟条件句中，主从句时间不同，应依据不同状况不同对待。比如： Its hard for me to imagine what I would be doing today if I ______ in love，at the age of seven，with the Melinda Cox Library in my hometown. A.wouldnt have fallen B.had not fallen C.should fall D.were to fall 分析 句意为：假如不是我在七岁时爱上家乡的Melinda Cox图书馆的话，非常难想象今天的我会是什么样子。主句描述的是与目前事实相反的事情，从句描述的是与过去事实相反的事情。正确答案为B。 考试知识点4、名词性从句中的虚拟语气 在含有表示坚持、建议、命令、需要等含义的名词性从句和在it做形式宾语或形式主语的复合句中，宾语补足语是necessary/strange/essential/natural/a pity/a shame等表示惊奇、惋惜或者理应这样等含义时，从句中的谓语动词需用should+动词原形，其中should可以省略。比如： Dont you think it necessary that he ______ to Miami but to New York? I agree，but the problem is ______ he has refused to. A.will not be sent;that B.not be sent;that C.should not be sent;what D.should not send;what 分析 问句句意为：难道你不觉得需要把他送到迈阿密而不是纽约吗?句子表示理应这样的意思。正确答案为B。 情态动词考试知识点透析 考试知识点1、情态动词基本含义的考查 情态动词的基本含义，一直是高考考试考查的要紧内容。比如： 1. The fire spread through the hotel very quickly but everyone______get out. A. had to B. would C. was able to D. could 分析：考查情态动词的基本含义。had to：不能不; would：表示意愿或过去常常;could倾向于表示经过多年练习而获得的能力;was able to 表示经过努力而可以做到的事或成功地做了某事。因此，答案是C。 剖析：高考考试对情态动词基本含义的考查，仍然集中在常见的情态动词上。对常用情态动词的意思，要学会的既准确又要全方位，尤其是shall, should, can, may 四个常用情态动词的意思较多，不容易理解，复习时应当引起看重。 2、情态动词表示推断的考查 对情态动词表示推断的使用方法，是高考考试考查情态动词的一个要紧方面。比如： 1. Sorry, Im late. I______have turned off the alarm clock and gone back to sleep again . A. might B. should C. can D. will 分析：might have done : (过去)可能做过某事;shouldhave done :本应该做某事。依据本句提供的情境Im late 表明说话人可能把闹钟关上了。答案是：A。 剖析：高考考试对表示推断的情态动词集中在must, can, could, may, might上，准确学会它们用的场所，是解决问题的重点。Must 用于一定陈述句，表示一定推断;can, could用于疑问或否定陈述句，表示可能性推断;may, might用于陈述句，表示可能性推断;用于否定陈述句中，cant (不可能)的语气比may not(可能不)强。除此之外，还应该注意有对过去和对目前两种状况的推断,对过去推断用情态动词+have done ，对目前推断用情态动词+ 动词原形。 3、情态动词表示虚拟的考查 情态动词+have+过去分词表示与过去事实上相反的状况，也是高考考试单项选择题涉及到情态动词的一个要紧方面。 1. There was a lot of fun at yesterdays party. You______come, but why didnt you? A. must have B. should C. need have D. ought to have 分析：ought to have done 表示本来应该做某事而实质没做，should do 表示目前应该做某事，与题中 at yesterdays party 表示的时间不同。所以选D。 剖析：高考考试对情态动词表示虚拟使用方法，表示与过去事实相反的状况。近几年高考考试，主要侧重should (not)have done 这一句式上，表示本来不该做却做了或本来该做却未做的事，在复习时，还应关注其它几种虚拟形式，如need (not)have done 表示本来需要做而未做或本来无需而做的事等等，以做到有备无患。 考试知识点4、情态动词与助动词混合考查 1.Tom ,you didnt come to the party last night? I______, but I suddenly remembered I had homework to do . A. had to B. didnt C. was going to D. wouldnt 分析：had to:不能不;didnt:没来;was going to：计划来;wouldnt:不愿来。句意：汤姆，昨晚你没来参加舞会吗?我本计划来，但我忽然记起有作业要做。But是关键字，所以答案是：C。 2.Your phone number again? I______quite catch it . Its 86184867. A. didnt B. couldnt C. dont D. cant 分析：记住电话号码并不是难事，未完全听了解电话号码并不是能力的事，此处只不过说没完全听了解电话号码，所以，应选A。 名校模拟题及其答案 1. I still havent thanked Aunt Lucy for her present. Its time you _____. A. do B. did C. had D. would 2. If I hadnt been lucky enough to meet you. I really _____ what I would have done. A. dont know B. hadnt known C. wasnt knowing D. wouldnt know 3. Ive told everyone about it. Oh, Id rather you _____. A. dont B. hadnt C. couldnt D. wouldnt 4. It has been raining for a day, but eventhough it hadnt rained, we _____ there by tomorrow. A. cant get B. wont get C. hadnt got D. wouldnt get 5. Do you know his address? No, I also wish I _____ where he _____. A. knew, live B. knew, lives C. know, lives D. know, lived 6. Isnt it about time you _____ to do morning exercises? Yes, it is. Would you like to join us? A. begin B. have begun C. began D. had begun 7. It is hard for me to imagine what I would be doing today if I ____ in love, at the age of seven, with the Melinda Cox Library in my hometown. A. wouldnt have fallen B. had not fallen C. should fall D. were to fall 8. He hesitated for a moment before kicking the ball, otherwise he ____ a goal. A. had scored B. scored C. would score D. would have scored 9. If only he _______ quietly as the doctor instructed, he would not suffer so much now. A. lies B. lay C. had lain D. should lie 10. Without the air to hold some of the sunsheat, the earth at night ____ for us to live. A. would be freezing cold B. will be freezing coldly C. would be frozen cold D. can freeze coldly 11. I forget where I read the article, or I _____ it to you now. w.w.w.k.s.5.u.c.o.m A. will show B. would show C. am going to show D. am showing 12. It looks as if he were drunk. So it does. _____. A. Hed better give up drinking B. He shouldnt have drunk so much C. Health is more important than drink D. I wonder why he is always doing so 13. Mary looks hot and dry So _____ you if you had so high a fever. A. do B. are C. will D. would 14. He will come tomorrow. But Id rather he _____ the day after tomorrow. A. will come B. is coming C. came D. had come 15. All the doctors in the hospital insisted that he ____ badly wounded and that he ____ at once. A. should be; be operated on B. were; must be operated on C. was; should be operated D. was; be operated on 16. ______ smoking, he would not have got cancer in the lung. A. Was he given up B. Had he given up w.w.w.k.s.5.u.c.o.m C. Did he give D. If he gave up 17. I still havent thanked Aunt Lucy for her present. Its time you _____. A. do B. did C. had D. would 18. Do you know his address? No, I also wish I _____ where he _____. A. knew, live B. knew, lives w.w.w.k.s.5.u.c.o.m C. know, lives D. know, lived 19. It is hard for me to imagine what I would be doing today if I ____ in love, at the age of seven, with the Melinda Cox Library in my hometown. w.w.w.k.s.5.u.c.o.m A. wouldnt have fallen B. had not fallen C. should fall D. were to fall 20. Without the air to hold some of the suns heat, the earth at night ____ for us to live. A. would be freezing cold B. will be freezing coldly C. would be frozen cold D. can freeze coldly 21.________ fired, your health care and other benefits will not be immediately cut off. A. Would you be B. Should you be C. Could you be D. Might you be 22.You cant imagine that a well-behaved gentleman _____ be so rude to a lady. A. might B. need C. should D. would 23.Excuse me. But I want to use your computer to type a report. You _____have my computer if you dont take care of it . A. shant B. might not C. neednt D. shouldnt 24. He _____ have completed his work; otherwise, he wouldnt be enjoying himself by the seaside. A. should B. must C. wouldnt D. cant 25. I ______ have been more than six years old when the accident happened. A. shouldnt B. couldnt C. mustnt D. neednt 26. There _____ be any difficulty about passing the road test since you have practiced a lot in the driving school. A. mustnt B. shant C. shouldnt D. neednt 27. I was on the highway when this car went past fol. Lowed by a police car. They ______ at least 150 kilometers an hour. A. should have been doing B. must have been doing C. could have done D. would have done 28. Ive taken someone elses green sweater by mistake. It ______ Harrys. He always wears green. A. has to be B. will be C. mustnt be D. could be 29. Catherine, I have cleaned the room for you. Thanks. You ______ it. I could manage it myself. A. neednt do B. neednt have done C. mustnt do D. shouldnt have done 30. Lucy doesnt mind lending you her dictionary. She _______. Ive already borrowed one. A. cant B. mustnt C. neednt D. shouldnt 1. 选B.Its time you did 为 Its time you thanked Aunt Lucy for her present 之略。根据英语语法，its time 后从句一般要用过去式。 2. 选A.虽然前有虚拟条件句, 后有用了虚拟语气的宾语，但 I dont know 却宜用一般目前时，由于 I dont know 表述的是目前的真实状况，句意为我要不是有幸遇见你，我真不知(指目前不知)我会做出什么蠢事来。 3. 选B.Id rather 后接从句时，从句谓语的时态规律是：用过去式表示目前或以后，用过去完成式表示过去。 4. 选A.we cant get there by tomorrow 为客观事实，故宜用陈述语气。 5. 选B.第一空填 knew，由于 I wish 后的宾语从句要用虚拟语气(即用过去式表示目前的想法);第二空要填lives，即用陈述语气，由于 where he lives 是一个客观事实，而不是 I wish 的内容。 6. 选C.Its time / Its high time / Its about time 等后接从句时，从句谓语一般用过去式。 7. 选 B.此题涉及错综时间虚拟条件句，主句与目前事实相反，条件句与过去事实相反。句意为：要不是在七岁时就迷上了 Melinda Cox 图书馆，我真不可以想像我现在会在干什么。 8. 8. 选 D.这是otherwise 引出的含蓄虚拟语气，再依据前面的 hesitated 可进一步了解这是与过去事实相反的虚拟语气，由此可推知答案选 D. 9. 选 C.if only意为如果就好了，其后的句子谓语要用虚拟语气，同时依据 as the doctor instructed 中的过去时态可知从句是与过去事实相反，故选 C. 10. 选 A.without 引出的介词短语为一个与目前事实相反的含蓄条件句。 C 11. .依据上文的语境可知句中的 or 隐含有一个虚拟的条件，即 or=if I didnt forget where I read the article(如果我没忘记我在什么地方读过这篇文章的话但事实上忘了)。 B 12. 重点信息是It looks as if he were drunk 中的虚拟语气，句子既然用了虚拟语气，也就是说，他喝醉了不是事实，只不过他的言行仿佛是醉了，所以此题的最好答案是D. D. 13. 因为空格后的 if 条件状语从句的谓语用的是虚拟语气(这是非常重要的信息)，所以主句要用 would 而不需要 will，即答案应选D. D 14. 根据英语习惯，would rather 后接that 从句时，从句谓语一般要用虚拟语气，即用过去式表示目前或以后， 用过去完成时表示过去。 C 15. insist后的从句谓语有时用should+动词原形如此的虚拟语气，有时不需要，具体要看该谓语动词所表示的意思。一般说来，若该谓语动词所表示的动作尚未发生，或尚未成为事实，则用虚拟语气;若该谓语动词所表示的动作已经发生，或已经成为事实，则要用陈述语气。剖析上题的句意，可知只有选D比较合适。 D 16. 是由于时态前后有矛盾。因为主句谓语是would not have got，这表明是对过去事实作出的假设，所以从句谓语应该是 had given up，而不是像D项那样用一般过去时。另外，当虚拟条件句中有 had, should, were 等词时，一般可以省略 if，并将 had, should, were 提前置于句首。 B 17. Its time you did 为 Its time you thanked Aunt Lucy for her present 之略。根据英语语法，its time 后从句一般要用过去式。 B 18. 第一空填 knew，由于 I wish 后的宾语从句要用虚拟语气(即用过去式表示目前的想法);第二空要填lives，即用陈述语气，由于 where he lives 是一个客观事实，而不是 I wish 的内容。 B 19. 此题涉及错综时间虚拟条件句，主句与目前事实相反，条件句与过去事实相反。句意为：要不是在七岁时就迷上了 Melinda Cox 图书馆，我真不可以想像我现在会在干什么。 B 20. without 引出的介词短语为一个与目前事实相反的含蓄条件句。 A 21. 句意：万一你被解雇，给你的医疗救助和其它方面的福利也不会被取消。 B 22. 句意：你想象不到这么一个表现好的绅士居然会对一个女性这么粗鲁。 C 23. shall此处表示警告。 A 24. B此处考查情态动词表示推断的使用方法。should have done表示过去应该做而实质并没做，因此淘汰A项。would不需要来表推断，因此淘汰C项。B基与D项虽然都可以表示推断，但B项表一定意义而D项表示否定推断，意为不可能，依据句意：他一定已完成了他的工作;不然，他就不会在海边玩得那样愉快了。可知此处需要一定意义，因此淘汰D项。 25. B本题考查情态动词的使用方法。must表示推断只可以用于一定句，否定句用can或could 代替。shouldnt have done 表示本来不该而事实上却做了某事.neednt have done表示本来不必而事实上却做了均不合题意。本句的意思是：当事故发生时我不可能超越6岁。 26. C should(按道理)应该;句意：既然你在驾校时做了很多训练，那样通过这次考试理不应该有困难。 27. B 第一句话用了一般过去时，由此可知第二句话是对过去事情的猜测，需用must have done.本题意为我正在高速公路上行驶，这个时候一辆警车跟伴随着这辆车从旁边经过。它们肯定是以至少每小时150公里的速度行驶。故选B。A项表示本应该，C项表示本可以不合题意。 28. D 本题考查情态动词的使用方法。句意是我错拿了其他人的绿色 毛衣，那可能是Harry的，他一直穿绿色的毛衣。四个选项中could表示推断。mustnt 表示 禁止;has to 表示不能不;will 表推断时，表一定语气太强。 29. B依据句意可知Catherine对他们为她打扫了房间表示感谢并提到他们本来不必为她打扫房间。非常显然他们打扫房间是过去所为，表达去不必做某事用neednt have done sth. 30. C本题考查情态动词，从答语的后半句我已经借到一本字典了，可知前半句为不必了。故C正确。
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