1.Had he worked harder, _______________ (他就会通过考试)
he would have passed the test.
2.It is essential that _________________(这些申请表被送回)as early as possible.
these application forms should be sent back
3.If I had worked harder at school, I ________________ (可能正坐在舒适的办公室里).
would be sitting in the comfortable office now
4.But for the storm, the ship __________________(可能会准时到达目的地).
would have arrived at the destination on time
5.I suggested he _____________（使自己适应）his new conditions.
should adapt himself to
6.It is recommended that _______________ (工程不动工)until all preparations have been
made. the project not be started
7.But for his help, I___________________(不可能这么早完成)
wouldn’t have finished it so early
8.If you had_____________________ （听从了我的劝告，你就不会陷入麻烦）
followed my advice, you wouldn’t have been in trouble.
9.I’d rather________________(你别发表任何意见)on the issue for the time being.
10.We insist that _________________________ (让杰克立刻进医院)
11.It is high time that __________________________(你该睡觉了)
12.I didn’t have enough money, otherwise ______________ (我会买那本书的)
1.he would have got through the exams
2.these application forms be sent back
3.would be sitting in a comfortable office now
4.would have reached its destination on time
5.should adapt himself to
6.the project not be started
7.would not have finished so early )
8.followed my advice, you would not be in trouble now.
9.you didn’t make any comment
10.Jack should be sent to hospital at once
11.you went to bed
12.I would havebought that book.
If it were Sunday tomorrow, I would go and see my friends. 明天要是星期天的话，我就去看望我的朋友。 If I were you, I should go and try. 我要是你，我就去试试。 If wishes were horses, beggars might ride. 如果幻想能成为马匹，叫花子都有了坐骑 I would go if they treated me like a slave. 要是他们把我当奴隶对待，我就走。 If I had known your telephone number yesterday, I would have telephoned you. 如果昨天我知道你的电话号码，我就给你打电话了。 If it had not rained this morning, I should have gone shopping. 今天早上要是没下雨，我就去买东西了。 The flood might have caused great damages to the people if we had not built so many reservoirs. 倘若我们没有修建这么多的水库，洪水就会使人民遭受巨大的损失。 If he were here tomorrow, I would speak to him. 明天如果他在这里的话，我就和他谈谈。 If you dropped the glass, it would break. 你要是把杯子掉下来，会打碎的。 If she had time, she could help me. 她要是有时间，就会帮我了。 If I were to do the work, I should do it in a different way. 要是我做这项工作，我就会以不同的方式去做。 If the headmaster were to come, what would we say to him 假如校长来了，我们对他说什么呢？ Were it necessary, I might go without delay. 如果需要的话，我可以立即去。（= If it were necessary......） Had you taken my advice, you wouldn't have failed in the exam. 你要是听了我的建议，就不会考试不及格了。（= If you had taken my advice......） Should I have time, I would call on her. 要是有时间，我就去看她。（= If I should have time......） If you hadn't watched TV yesterday, you wouldn't be so sleepy now. 如果你昨天不看电视，你现在也就不会这么困了。（从句yesterday说明过去，主句now说明现在）If they had left home early this morning, they would arrive in half an hour. 如果他们今天一早就离开家的话，再过半小时他们就该到了。（从句说明过去，主句说明将来。） If you hesitated this moment, you might suffer in the future. 如果你此刻犹豫不决，你将来会吃苦头的。（从句说明现在，主句说明将来） He would not get such a result without your help. 没有你的帮助，他就不会有今天的成果。(条件暗含在介词短语without your help中) But for you, I could not be recovered so soon. 要不是有你，我就不会恢复得这么快。(条件暗含在But for you中) This same thing, happening in the past, would lead to a disaster. 同样的事，如发生在过去，就会酿成大祸。(条件暗含在分词短语happening in the past中) He must have been there, or he never could know the place so well.
情态动词与虚拟语气 【语法要点】 情态动词 所谓情态动词是指它含有一定的含义，可以表达某种感情和说话的语气，但是它不可以单独使用 作谓语动词。学习情态动词主要学习英语国家的语言习惯和表达法，特别是在口语中不要过分追求原理，更不要不根据说话场合而进行推理，编造出一些语法结构正确的中文式英语。 一、情态动词的类型 1.只作情态动词的有：must、can、could、may、might、ought to 2.既可作情态动词又可作实义动词的有：need、dare 3.既可作情态动词又可作助动词的有：shall、should、will、would 二、情态动词的特征 1.表示说话人的情感态度，不能单独作谓语，与行为动词或连系动词一起作谓语。 2.情态动词没有人称和数的变化，后接动词原形。 3.具有助动词的特征：可用来构成否定句、疑问句或简短答语。 三、情态动词的用法 1.表示能力 （1）表示现在的能力，用can 或be able to。表示一般的能力时多用can，表示“经过努力成功 的做成某事”用be able to。 （2）表示过去的能力，用could或was/were be able to。区别同上。 （3）表示将来的能力，用will be able to。 2.表示推测、可能性 （1）can 用在肯定句中表示客观的可能性，而不表示具体事情实际发生的可能性。 例如：Accidents can happy on such rainy days. （2）表示具体事情实际发生的可能性的情态动词，其表示可能性的层次如下表： 情态动词肯定式否定式疑问式 must 必定、必然、一定 will 很可能、大概不会、不该会,,吗？ would 可能性较will 小不会、不该（较won’t 弱）会,,吗？（较will 弱） should 应该会、理应（表示合乎理想的情况或结果） ought to 与should 同义 can 一定不会、不可能（否定推测）有可能吗？ could 可疑的可能不可能（与can’t 同义）有可能吗？（较can 弱）may 或许、可能、说不定可能不 might 或许、可能（较may 弱）可能不（较may not 弱） 注意→（1）may，must 常用于肯定句，一般不用于否定句和疑问句。 （2）can 常用于否定句，疑问句和感叹句中，表示疑惑、惊讶或不相信等意思。could 既可用于肯定句，又可用于否定句、疑问句中。
If sb had done sth ( 对过去虚拟) 1.如果昨天我知道你的电话号码 2.倘若我们没有修建这么多的水库 3.你要是听了我的建议 4.如果你昨天不看电视 5.如果他们今天一早就离开家的话 6.今天早上要是没下雨 If sb did/ were sth (对现在虚拟) 1,。我要是你 2.她要是有时间 3.如果需要的话 If sb should do(万一) /were to do (打算) / did sth （对将来虚拟） 1.明天如果他在这里的话 2.明天要是星期天的话 3.要是他们把我当奴隶对待 4.你要是把杯子掉下来 5.如果幻想能成为马匹 6.要是我做这项工作 7.假如校长来了 Sb would/ should/ could / might have done sth 某人就会/ 应该/ 能够 / 可能做了。。。（过去） 1 如果昨天我知道你的电话号码，我就给你打电话了。 2 今天早上要是没下雨，我就去买东西了。 3 倘若我们没有修建这么多的水库，洪水就会使人民遭受巨大的损失。 4 你要是听了我的建议，就不会考试不及格了。 Sb would/ should/ could / might do/ be doing sth 某人就会/ 应该/ 能够 / 可能做/在做。。。（现在、将来） 1 如果你昨天不看电视，你现在也就不会这么困了。 2 明天要是星期天的话，我就去看望我的朋友。 3 我要是你，我就去试试。 4 如果幻想能成为马匹，叫花子都有了坐骑
5 要是他们把我当奴隶对待，我就走。 综合练习 一、翻译下列条件句，并改为倒装结构 1.明天如果他在这里的话，我就和他谈谈。 2.你要是把杯子掉下来，会打碎的。 3.她要是有时间，就会帮我了。 4.要是我做这项工作，我就会以不同的方式去做。 5.假如校长来了，我们对他说什么呢 6.如果需要的话，我可以立即去。 7.要是有时间，我就去看她。 8.如果他们今天一早就离开家的话，再过半小时他们就该到了。 9.如果你此刻犹豫不决，你将来会吃苦头的。 10.要不是由于你的粗心大意，我们就赢了比赛了 11.要不是因为即将到来的考试，我今天晚上就和你一起去晚会。 二、请用所给词翻译下列句子 1.没有你的帮助，他就不会有今天的成果。(without) 2.要不是有你，我就不会恢复得这么快。(But for) 3.他一定是去过那儿，否则他绝不会对那个地方如此熟悉。(or) 4.她病了，否则的话就会出席会议了。（otherwise） 5.我让他自己去那里，但也许我应该和他一道去。（but） 6.假若你站在我的立场上，你会怎么办（suppose/supposing/providing） 三、特殊词练习 1. wish 1.但愿我是一只小鸟。 2.我要是知道答案就好了。 3.那时她要是接受我的建议就好了。
一．情态动词 1.---Could I borrow your dictionary? ----Yes,of course you_____. A.might B. will C. can D. should 2.---Shall we go skating or stay at home? ----Which _____do yourself? A.do you rather B.would you rather C.will you rather D.should you rather 3.It’s nearly seven o’clock.Jack ___be here at any moment. A. must B need C should D can 4.A computer __think for itself ,it must be told what to do. A. can’t B couldn’t C may not D might 5. Johnny,you ___play with the knife.You ___hurt yourself. A.won’t ;can’t B. mustn’t; may C. shouldn’t; must D. can’t; shouldn’t 6.—Shall I tell John about it? -----No,you _____.I’ve told him already. A. needn’t B.wouldn’t C. mustn’t D. shouldn’t 7.---Don’t forget to come to my birthday party tomorrow. ----______. A.I don’t B.I won’t C.I can’t D.I haven’t 8.He ____you more help,even though he was busy. A.might have given B.might give C.may have given D.may give 9.----There were already five people in the car but they managed to take me as well. ---It ___a comfortbable journey. A.can’t be B.shouldn’t be C.mustn’t have been D.couldn’t have been 10.I told Sally how to get there ,but perhaps I ___for her. A.had to write it out B.must to have written it out C.should have written it out D.ought to write it out 11.---When can I come for photos?I need them tomorrow afternoon. ---They ___be ready by 12:00. A.can B. should C might D need 12.---I stayed at a hotel while in New York. ----Oh,did you?You ____with Barbara. A.could have stayed B.could stay C.would stay D.must have stayed 13.-----Alice, you feed the bird today.____? -----But I fed it yesterday. A.do you B.will you C.didn’t you D.don’t you 14.The fire spread through the hotel very quickly but everyone ____get out. A.had to B.would C.was able to D.could
@ 情态动词和虚拟语气 1. Jack descried his father, who ________a brave boy many years ago, as a strong-wiled man A. would be B. would have been C. must be D. must have been ） 2. —Good morning. I've got an appointment with Miss Smith in the Personnel Department. —Ah, good morning. You _______ be Mrs. Peters. A. might B. must C. would D. can recommend parents _______ their children under 12 to ride bicycles to school for safety. ~ A. not allow B. do not allow C. mustn’t allow D. couldn’t allow 4. You_______ buy a gift, but you can if you want to. A. must B. mustn't C. have to D. don't have to 5. —I haven’t got the reference book yet, but I’ll have a test on the subject next month. —Don’t worry. You________ have it by Friday. A. could B. shall C. must D. may w_w w. k#s 6. I have told you the truth I keep repeating it A. Must B. Can C. May D. Will ~ 7. Doctors say that exercise is important for health, but it _______ be regular exercise. A. can B. will C. must D. may 8. Just be patient. You ________ expect the world to change so soon. A. can’t B. needn’t C. may not D. will not 9. I’m afraid Mr. Harding ________ see you now. He’s busy. A. can’t B. mustn’t C. shouldn’t D. needn’t 10. I _______ have watched that movie—it’ll give me horrible dreams. A. shouldn’t B. needn’t C. couldn’t D. mustn’t < 11. –May I take this book out of the reading room –No, you . You read it in here. A. mightn’t B. won’t C. needn’t D. mustn’t 12. —Sorry, Professor Smith. I didn't finish the assignment yesterday. — Oh, you _________ have done it as yesterday was the deadline. A. must B. mustn't C. should D. shouldn't 13. — _______ I take the book out —I'm afraid not. *
1.Had he worked harder, _______________ (他就会通过考试) he would have passed the test. 2.It is essential that _________________ (这些申请表被送回) as early as possible. these application forms should be sent back 3.If I had worked harder at school, I ________________ (可能正坐在舒适的办公室里). would be sitting in the comfortable office now 4.But for the storm, the ship __________________ (可能会准时到达目的地). would have arrived at the destination on time 5.I suggested he _____________（使自己适应）his new conditions. should adapt himself to 6.It is recommended that _______________ (工程不动工)until all preparations have been made. the project not be started 7.But for his help, I___________________(不可能这么早完成) wouldn’t have finished it so early 8.If you had_____________________ （听从了我的劝告，你就不会陷入麻烦） followed my advice, you wouldn’t have been in trouble. 9.I’d rather________________(你别发表任何意见) on the issue for the time being. 10.We insist that _________________________ (让杰克立刻进医院) 11.It is high time that __________________________(你该睡觉了) 12.I didn’t have enough money, otherwise ______________ (我会买那本书的) 1.he would have got through the exams 2.these application forms be sent back 3.would be sitting in a comfortable office now 4.would have reached its destination on time 5.should adapt himself to
虚拟语气翻译 If 条件句 1.与现在事实相反 从句：动词过去式（be 动词多用were） 主句：would/should/could/might+动词原形 If I were you, I should accept the invitation. If I had time, I would go there. 2.与过去事实相反 从句：had+过去分词 主句：would/should/could/might + have done If you had come earlier, you couldn’t have missed the bus. If he had seen you yesterday, he would have returned your book. 3.与将来事实相反 从句：should+动词原形 were to+动词原形 动词过去式（be 动词多用were）+ 将来时间状语 主句：would/should/could/might+动词原形 If it should rain/were to rain/rained tomorrow, the sports meeting would be put off. If you dropped/should drop/were to drop the glass, it would break. 4.混合时间条件句与主句 If you had reviewed the lesson, you would answer the question now. If he had followed the doctor’s advice, he would be quite all right now. If I were you, I would have gone home. 5.条件句与主句的省略 I would /should have it, but I was too busy then. I was surprised that you didn’t like this job, you could have done it better. 6. 含蓄条件句与主句 without=but for代替if从句 Without your help, we wouldn’t have made such great progress. = if there had been no help from you, we wouldn’t have made such great progress. Without air, there would be no living things. 6.as if/as though引导的状语从句中用法 表现在：从句用过去式（be 动词多用were） 表将来：从句would/should/could/might+动词原形 表过去：从句had done The man speaks as if he were a foreigner. The speaker told us a lot about that country as though he had been there many times. They talked as if they had been good friends for years. 7.wish宾语从句中的用法
要点一情态动词的基本用法 ,could 【温馨提示】 can有时也用于肯定句,表示理论上的可能性或一时的情况。常译为“有时会”。 ,might 【温馨提示】 may表示请求许可时,其否定回答一般用mustn’t。may not意为“可能不”,而can’t意为“不可能”。 ,would 【温馨提示】 would表示过去的习惯时仅指动作,而且不与现在作对比;used to表示过去的习惯动作或状态,而且与现在作对比,说明现在这种动作或状态已经不存在。
,should,ought to ,have to 【温馨提示】 (1)在回答must的问句时,否定回答通常用needn’t或don’t have to。(2) mustn’t表示“禁止;不许”;而don’t have to表示“不必”。(3) must只有一种形式,而have to有人称、时态的变化。 的用法 的用法
【温馨提示】 (1)dare用作情态动词有dare,dared两种形式。 (2)dare用作实义动词,后接不定式,不定式符号to可省去,但dare以动词-ing形式出现时,不定式符号to不能省略。 要点二“情态动词+have done ”的用法 have done表示对过去已发生的事情进行肯定的推断,只用于肯定句中,意为“一定,必定”,其否定形式为:can’t/cannot have done。 It must have rained last night,for the road was quite wet. 昨晚肯定下雨了,因为路面十分潮湿。 I saw Mr Wang just can’t have gone abroad. 刚刚我还看见王先生了,他不可能已经出国了。 have done意为“本来可以……,本来能够……”,表示虚拟语气。 You could have made greater progress,but you didn’t try your best. 你本来可以取得更大的进步,但是你没有努力。 might have done表示对过去已发生的事情进行推断,意为“可能/或许已经……”。其否定形式为: may/might not have done意为“可能没有做……”。 It’s no use going to his may not have gone may have gone somewhere else. 去他家没用。他可能没有回家,可能已经去了别的地方。 ought to have done表示本应该做某事,却没有做,含有责备或后悔之意。其否定形式为should not/ought not to
翻译训练 一、倍数增减的表示法 1) Force N1 is 2.5 times greater than Force N2 (考点：倍数+ 形容词/副词比较级+ than) (比力N2大2.5倍). 2) This substance reacts three times as fast as the other one (考点：倍数+ as + 形容词/副词+ as) (反应速度 是另外那种物质的三倍). 3) The earth is 49 times the size of the moon (考点：倍数+ 名词) (是月球大小的49倍). 4) The landlord wants to raise the rent by a third (考点：动词+ by + 数词/百分比/倍数) (想将租金提高三 分之一). 5) They plan to double their investment (考点：double + 名词) (计划将投资增加一倍). 二、时态 1) Be quick, ) or the wedding will have finished by the time we get to the church (考点：将来完成时) (否则等我 们到达教结束了). 2) When she got home, the children had fallen asleep (考点：过去完成时) (孩子们已经睡着了). 3) When I prepare for the college entrance examination, my sister will be taking her vacation at the seaside (考点： 将来进行时) (我姐姐将在海边度假). 4) I have been revising my resume all the morning (考点：现在完成进行时) _(一上午都在修改我的简历). 5) Do you often go on holiday? No. It has been five years since I went on holiday (考点：It has been …since sb. did sth. 表示某人有多长时间没有做某事了) (不，我已经有五年没有度假了). 6) He joined the army in October, 2001. He has been in the army for 5 years (考点：1. 现在完成时;2.要用持续性 动词才能接一段时间) (他参军已五年了). 三、被动语态 1) The blackboard and chalk _ is being replaced by the computer and the projector (考点：被动语态的现在进行 时) (正在被电脑和投影机所取代). 2) The book will have been published by the end of this year (考点：被动语态的将来完成时) (到今年年底就将 已出版). 3) Computer models can be used to demonstrate the way that cells work (考点：1. 被动语态与情态动词联用; 2. 汉语有些没有“被”字等标志词的句子也表示被动, 要译成英语的被动语态) (可以用来演示细胞工作的方式). 4) When the bill of fare was brought, I was startled, for the prices were a great deal higher than I had anticipated (考点：同“3”的考点2) (我惊呆了，价格大大超出了我的预料).
虚拟语气单项选择题： 1. Sorry, I am too busy now. If I time, I would certainly go for an outing with you. (2012 湖南) A. have had B. had had C. have D. had 2. If my car ____ more reliable, I would have driven to Lasa instead of flying last summer. （2012 陕西） A. was B. had been C. should be D. would be 3. We ____ the difficulty together, but why didn’t you tell me? （2012 北京） A. should face B. might face C. could have faced D. must have faced 4. We lost our way in that small village, otherwise we ____ more places of interest yesterday. （2012 福建） A. visited B. had visited C. would visit D. would have visited 5. Grace doesn’t want to move to New York because she thinks if she ____ there, she wouldn’t be able to see her parents very often. (2012 安徽) A. lives B. would live C. having asked D. were to live 6. But for the help of my English teacher, I the first prize in the English Writing Competition.（2009 福建） A. would not win B. would not have won C. would win D. would have won 7. Thank you for all your hard work last week. I don’t think we ____ it without you.（2008 山东） A. can manage B. could have managed C. could manage D. can have managed 8. _____ fired, your health care and other benefits will not be immediately cut off. （2006 湖北） A. Would you be B. Should you be C. Could you be D. Might you be 9. — Do you mind if I open the window? —____ I feel a bit cold. （2004 广东） A. Of course not B. I’d rather you didn’t C. Go ahead D. Why not? 10. 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. （2002 上海） A. wouldn’t have fallen B. had not fallen C. should fall D. were to fall 11. What would have happened ____, as far as the riverbank? （2001 上海） A. Bob had walked farther B. if Bob should walk farther
谓语动词(情态动词、虚拟语气) 要点一情态动词的基本用法 【温馨提示】can有时也用于肯定句,表示理论上的可能性或一时的情况。常译为“有时会”。 2.may,might 【温馨提示】may表示请求许可时,其否定回答一般用mustn’t。may not意为“可能不”,而can’t意为“不可能”。 【温馨提示】would表示过去的习惯时仅指动作,而且不与现在作对比;used to表示过去的习惯动作或状态,而且与现在作对比,说明现在这种动作或状态已经不存在。 4.shall,should,ought to
5.must,have to 【温馨提示】 (1)在回答must 的问句时,否定回答通常用 needn ’t 或don ’t have to 。(2) mustn ’t 表示“禁止;不许”;而don ’t have to 表示“不必”。(3) must 只有一种形式,而have to 有人称、时态的变化。 7.dare 的用法 【温馨提示】 (1)dare 用作情态动词有dare,dared 两种形式。 (2)dare 用作实义动词,后接不定式,不定式符号to 可省去,但dare 以动词-ing 形式出现时,不定式符号to 不能省略。 要点二 “情态动词+have done ”的用法 1.must have done 表示对过去已发生的事情进行肯定的推断,只用于肯定句中,意为“一定,必定”,其否定形式为:can ’t/cannot have done 。 It must have rained last night,for the road was quite wet. 昨晚肯定下雨了,因为路面十分潮湿。 I saw Mr Wang just now.He can ’t have gone abroad. 刚刚我还看见王先生了,他不可能已经出国了。 2.could have done 意为“本来可以……,本来能够……”,表示虚拟语气。 You could have made greater progress,but you didn ’t try your best. 你本来可以取得更大的进步,但是你没有努力。 3.may/might have done 表示对过去已发生的事情进行推断,意为“可能/或许已经……”。其否定形式为: may/might not have done 意为“可能没有做……”。 It ’s no use going to his house.He may not have gone home.He may have gone somewhere else. 去他家没用。 他可能没有回家,可能已经去了别的地方。 4.should/ought to have done 表示本应该做某事,却没有做,含有责备或后悔之意。其否定形式为should not/ought not to have done 表示“本不该做某事却做了”。
虚拟语气练习 1．If I had wings, ______________________ (我就飞到美国去). 2. I would have made a speech ______________________(要不是有人把我的话打断了). 3. It didn’t rain last night. _____________________________(要是下了，地就会湿的). 4. ________________________(如果我在纽约居住过), I would know the . well now. 5. If the doctor had not come in time, _______________________(他现在就不在人间了). 6. But for his help, ____________________________________(我们就不会以这么低的价格租到房子了). 7. I used my calculator; ____________________________________________ (否则，我会花更长的时间才能算出这道题). 8. Were I in your place, ____________________________(我会毫不犹豫地抓住机会). 9. Had it not been for their opposition, ______________________(这项法案早就通过了). 10. Should there be another world war, ________________________________(人类的继续存在就会有危险). < 11. It is vital that ______________________________________(每个人都为紧急情况做好准备). 12. If the shoes had fitted me, ______________________ (我就买了). 13. _______________________(要是我生在美 国), I would not have studied English. 14. ________________________________________ (如果过去的一周之内天气很 好) , the crops would grow better now. 15. The general ordered that ________________________(士兵马上开火). 16. But for the storm, __________________________(我们早就到了). 17. ___________________________ (要是你选了三 号), we would have won 5 million. (要是我早知道她的名字)，I would not have been so embarrassed. 19. Even if __________________________(明天太阳从西边出 来), I would not do so.
三年（2017-2019）年高考真题分项汇编 专题06 情态动词和虚拟语气 一、2019年高考真题 1.【2019·江苏卷·单项填空】31.What a pity! You missed the sightseeing, or we _________a good time together. A. had B. will have C. would have had D. had had 【答案】C 【解析】考查虚拟语气。句意：真遗憾！你错过了这次观光，否则，我们本应该在一起度过一段愉快时光的。根据上文，可知是对过去事情的虚拟，与过去事实相反的假设。其句子结构为：从句：If+主语+过去完成时+其他，主句：主语+should(would, could, might)+现在完成时+其他，故选C。 2.【2019·天津卷·单项填空】14.The workers were not better organized, otherwise they ____________ the task in half the time. A. accomplished B. had accomplished C. would accomplish D. would have accomplished 【答案】D 【解析】考查虚拟语气。句意：工人们没有被更好的组织起来，否则他们用一半的时间就能完成任务。根据上句the workers were not better organized可知，这是对过去事情的虚拟。与过去事实相反的假设。其句子结构为：从句：If+主语+过去完成时+其他，主句：主语+should(would, could, might)+现在完成时+其他，故选D。 二、2018年高考真题 1.【2018·江苏】24. It’s strange that he _______ have taken the books without the owner’s permission. A. would B. should C. could D. might 【答案】B 【解析】考查虚拟语气。句意：真奇怪，他竟然没有主人的允许就拿走了这些书。在句型”It is important/necessary/strange/impossible/natural that...”中，其中由that引导的主语从句通常用“should+动词原形”这样的虚拟语气，其中的should可以省略。故选B。 点睛：本题考查虚拟语气。It is important/necessary/strange/impossible/natural that... 主语从句多数情况下用虚拟语气，表达一种要求、命令或者责备、建议或主观看法。但是如果只是表示陈述一个事实而不是强烈的感情，完全可以用一般的陈述语气。试比较：It is strange that he had made a mistake.（陈述一个事实：他犯