高考英語(yǔ)語(yǔ)法精講精練情態(tài)動(dòng)詞和虛擬語(yǔ)氣學(xué)生版

1、2012屆新課標(biāo)高三第二輪專題講解情態(tài)動(dòng)詞表示說(shuō)話人的語(yǔ)氣和情緒，本身詞義不全，不能單獨(dú)作謂語(yǔ)，后面必須與動(dòng)詞原形一起構(gòu)成謂語(yǔ)。情態(tài)動(dòng)詞沒(méi)有人稱和數(shù)的變化，有的情態(tài)動(dòng)詞有過(guò)去式。常見的情態(tài)動(dòng)詞有can, could, may, might, must, have to, shall, should, will, would, ought to, need, dare等。（一）can和could1.表示體力或腦力(知識(shí)、技能)所產(chǎn)生的能力。He could read books in English when he was only five.他只有五歲的時(shí)候就會(huì)讀英文書籍了。2.表示客觀的可能

2、性Anybody can make mistakes.任何一個(gè)人都有可能犯錯(cuò)誤。3.表示請(qǐng)求建議，用could 比 can語(yǔ)氣更委婉 (回答用原形)Could you be here at eight oclock tomorrow morning?你可不可以明天上午8點(diǎn)鐘來(lái)這兒呢？4.表示允許、許可，用could 比 can更委婉客氣。Could/Can I borrow your reference books?我可以借用一下你的參考書嗎？1.否定句、疑問(wèn)句和感嘆句中，表示懷疑、驚異、不相信的態(tài)度。Can it be true? 難道這是真的？You can't be seriou

3、s!你怕不是在開玩笑吧！Oh, dear, what on earth can this mean?哎呀，親愛(ài)的，這究竟是意味著什么？2.表示“經(jīng)過(guò)努力后終于能”用be able toThe fire spread the building quickly but everybody was able to escape.大火迅速蔓延到整幢大樓，但大家都逃了出來(lái)。注意：be able to比can有更多的形式變化When he grows up, he will be able to support his family.他長(zhǎng)大后就能養(yǎng)家了。 Frank is ill. He hasn'

4、;t been able to go to school for one week.弗蘭克病了，已經(jīng)一周沒(méi)去上學(xué)了。I'm sorry for not being able to help you in time.對(duì)不起，不能及時(shí)幫你的忙。3.慣用形式“can not (can't)too/over/enough”。表示“無(wú)論怎么也不(過(guò)分)”，用來(lái)加強(qiáng)語(yǔ)氣You can not be too careful.你無(wú)論怎么小心都不為過(guò)（你越小心越好）。4.can not but do sth. 不得不；只好。I couldnt but choose to wait.我只好選擇等待

5、。（二）may和might1.表示允許、請(qǐng)求?！癕ight I？”比“May I？”語(yǔ)氣更為委婉和有禮貌。對(duì)于“Might I ？”的回答用“ may”；“May I ？”的否定回答常用“ mustnt / cant” May I watch TV after supper? 晚飯后我可以看電視嗎？ Yes, you may.可以?；騈o, you may not.不，不可以?；験ou mustn't.絕對(duì)不可以。2.表示可能性，表示“或許”，“大概”。用于肯定句或否定句中，用might 比 may語(yǔ)氣更加不肯定。He may be very busy these days.這些天也許

6、他很忙。He might come tomorrow.明天他也許要來(lái)的。1.慣用形式 may (might)as well動(dòng)詞原形：不妨做If that is the case, we may as well try.如果情況是這樣的話，我們不妨試試看。2.表示祝愿may而不用might。采用部分倒裝語(yǔ)序：may主語(yǔ)動(dòng)詞原形！May the friendship between our two peoples last forever! 祝愿我們兩個(gè)民族的友誼源遠(yuǎn)流長(zhǎng)！3.may或might可和as well連用，表示“建議”，譯為“還是的為好”You may as well keep a c

7、ertain distance from that mad man. 你們還是離那瘋子遠(yuǎn)點(diǎn)為好。You might as well go home now.你還是現(xiàn)在回家為好。（三）must和have to1.must 表示“必須”。強(qiáng)調(diào)主觀看法，只有現(xiàn)在時(shí)形式，否定式是must not/mustnt，表示“禁止、不準(zhǔn)”。Everybody must obey the rules. 人人都得遵守規(guī)則。You mustn't speak like that to your mother. 不準(zhǔn)你那樣對(duì)你母親說(shuō)話。 Must I be home before eight o'clo

8、ck? 八點(diǎn)之前我必須回家嗎？ Yes, you must.是的，必須的。 No, you needn't./No, you don't have to.不，沒(méi)必要/不必啦。2.must表示有把握的推測(cè)，意為“一定，肯定”，用于肯定句中。You must be hungry after the long walk.跑了這么遠(yuǎn)的路，你一定是餓了。Home cooking must be more delicious.家常菜一定更可口。3.have to表示“必須，不得不”，著重強(qiáng)調(diào)客觀需要，能用于更多時(shí)態(tài)(過(guò)去式和將來(lái)式)。The students today will have

9、 to know how to use computers.現(xiàn)在的學(xué)生必須懂得如何使用電腦。As he had his leg broken, he had to lie in bed.由于腿斷了，他不得不躺在床上。1.must 還表示主語(yǔ)主觀的堅(jiān)持，有“偏偏， 偏要，一定要”之意If you must know how old I am, I tell you that Im twice my sons age.如果你一定要知道我多大年齡的話，我告訴你我是兒子年齡的兩倍。2.must表示推測(cè)時(shí)的否定式是“cant”翻譯為“不可能”Michael_be a policeman, for hes

10、 much too short.A.neednt B.cantC. wouldntD. mustnt（四）will和would1.用于各種人稱，表示意愿或決心。will指現(xiàn)在，would則指過(guò)去I will do my best to help you.我愿意盡力幫助你。They said that they would help us.他們說(shuō)他們?cè)敢獗M力幫助我們。2.用于第二人稱的疑問(wèn)句中表示有禮貌的詢問(wèn)和請(qǐng)求，would 比 will更委婉。其 回 答 用“will”Would you pass me the book?請(qǐng)把那本書遞給我，好嗎？Yes, I will.好的。Will you

11、 please give him a message when you see him? 你見到他時(shí)給他帶個(gè)口信，好嗎？3.表示習(xí)慣性、經(jīng)常性、傾向性，意為“總是”，“慣于”。 will指現(xiàn)在，would指過(guò)去。Fish will die without water.魚兒離開了水會(huì)死亡的。He would come to see me on Sunday when he was in Beijing.他在北京的時(shí)候，每逢星期日他常來(lái)看我。The wound would not heal.傷口老是不能愈合。would 與used to 的區(qū)別：1.used to表示過(guò)去的某種習(xí)慣，現(xiàn)在已經(jīng)沒(méi)那樣

12、的習(xí)慣了；would 表示過(guò)去有某種習(xí)慣，不與現(xiàn)在對(duì)比 We would sit in the yard every evening and listen to his story. (過(guò)去會(huì)這樣，不與現(xiàn)在對(duì)比) We used to sit in the yard every evening and listen to his story. (過(guò)去是這樣的，但現(xiàn)在不這樣了)2.表示過(guò)去的狀態(tài)，只能用used to，不能用wouldThere used to be a park here.這兒過(guò)去有個(gè)公園。（言下之意：現(xiàn)在沒(méi)有了）（五）shall, should和ought to1.shall

13、用于第一、第三人稱作主語(yǔ)的疑問(wèn)句中，表示征求對(duì)方（聽話者）的意見What shall we do this evening? 我們今天晚上做什么呢？Shall he come in? 他可以進(jìn)來(lái)嗎？2.should 表示“應(yīng)該”，表義務(wù)，責(zé)任，也可表示勸告，建議You should keep your promise.你應(yīng)該信守諾言。3.should表示按常規(guī)、常理推測(cè)，意為“可能”或“應(yīng)該”They should arrive by one oclock.到了一點(diǎn)鐘，他們?cè)摶貋?lái)了。4.提出意見、請(qǐng)求、建議時(shí)，可用should表示委婉、謙遜的語(yǔ)氣，意為“可”，“倒是”I should thin

14、k you are mistaken.我倒是認(rèn)為你弄錯(cuò)了。5.ought to表示責(zé)任和義務(wù)，意為“應(yīng)該”，語(yǔ)氣比 should強(qiáng)；還可表推測(cè)You ought to obey your parents when they are right.父母親對(duì)的時(shí)候，你就該服從他們。You have practiced for a long time. There ought to be no difficulty for you.你練了那么長(zhǎng)時(shí)間了，對(duì)你來(lái)說(shuō)，應(yīng)該沒(méi)有什么困難了。1.shall用于第二、三人稱表示“警告、命令、允諾、威脅”等You shall fail if you dont wor

15、k harder.你不更加努力工作，你就不會(huì)成功。（警告）You shall have the book when I finish reading.我讀完了，你就可以拿走這本書。（允諾）He shall be punished.他一定會(huì)遭到懲罰。（威脅）2.Why/How should結(jié)構(gòu)表示說(shuō)話人對(duì)某事不能理解、感到意外、驚異等意思，意為“竟會(huì)”。Why should you be so late? 你今天來(lái)得怎么這么晚？How should I know? 我怎會(huì)知道！(意為：我不知道。) (六)needneed作情態(tài)動(dòng)詞表示“需要”，“必要”。通常用于否定句、疑問(wèn)句、條件句中，且只有現(xiàn)

16、在時(shí)，其他時(shí)態(tài)用“have to”的相應(yīng)形式代替You needn't come tomorrow. 你明天沒(méi)必要來(lái)了。 Need he come now? 他現(xiàn)在就需要來(lái)嗎？ Yes, he must. 是的，必須來(lái)。/ No, he needn't / he doesn't have to.不必啦。1.“Must？”一般疑問(wèn)句的否定回答要用：No, needn't. Must I finish my homework now? 我現(xiàn)在就必須把作業(yè)做完了？ No, you neednt.不，不必啦.2.need還可以用作行為動(dòng)詞，其變化和一般的動(dòng)詞相同。若主語(yǔ)

17、為動(dòng)作承受者時(shí)用動(dòng)詞主動(dòng)形式表示被動(dòng)意義或用不定式的被動(dòng)形式。We need to have a rest.我們需要休息一下。The house needs repairing.=The house needs to be repaired.這棟房子需要修理。(七)daredare作情態(tài)動(dòng)詞表示“敢于”，用于否定句、疑問(wèn)句和條件句中。She dare not go there.她不敢去那兒。How dare he do such a thing? 他怎么敢做重要的事呢？If he dare come,I will kick him out. 如果他膽敢來(lái)，我就把他踢出去。1.慣用短語(yǔ)“I da

18、re say”意為“我敢說(shuō)、我想、或許”。 I dare say he is right.我敢說(shuō)他是對(duì)的。2.dare還可以用作行為動(dòng)詞，其變化與一般動(dòng)詞相同。The girl didn't dare to go home.那個(gè)女孩不敢回家。Do you dare to jump into the ocean? 跳進(jìn)海洋里，你敢嗎？【注意】在否定句中時(shí)，dare后的“to動(dòng)詞原形”可以省略to。I don't dare (to) ask her. 我不敢問(wèn)她。(八) can ,may ,must皆可用來(lái)表示推測(cè)1.在肯定句中都可以用來(lái)表示可能。在含義上“must”語(yǔ)氣最肯定，“

19、may”表示的是事實(shí)上的可能性。2.在否定句中只能用“can和may”。所以“cant”（不可能）語(yǔ)氣比“may not”（可能不、也許不）更強(qiáng)。3.在疑問(wèn)句中只能用“can”，不能用“may和must”。Peter _come with us tonight, but he isnt very sure yet.A. must B. mayC. can D. willMary is in poor health. She can be ill at any times.Michael _be a policeman, for hes much too short.A. neednt B. c

20、ant C. should D. mayHe may be very busy now. Can he be very busy now?He must be very busy now. Can he be very busy now?They cant be cleaning the room now. 他們現(xiàn)在不可能在打掃房間。注意：could ,might 表示推測(cè)時(shí)不表示時(shí)態(tài)，其推測(cè)的程度不如can ,may。(九)情態(tài)動(dòng)詞+have done的用法1.could+have done：過(guò)去本可以做而實(shí)際上未能做 You could have done better, but you

21、didnt try your best.你本來(lái)能做得更好的，但你沒(méi)有盡力。2.cannot+have done：表示對(duì)過(guò)去行為的否定推測(cè) He cannot have been to that town.他不可能去過(guò)那個(gè)小鎮(zhèn)。3.can+主語(yǔ)+have done：（用于疑問(wèn)句）表示對(duì)過(guò)去行為的懷疑或不肯定Can he have got the book?他可能得到那本書了嗎？4.might(may)+ have done：對(duì)過(guò)去發(fā)生的行為不太肯定的推測(cè)He may not have finished the work.他可能沒(méi)有完成工作。If we had taken the other ro

22、ad, we might have arrived earlier.如果我們走另一條路，我們可能更早地到達(dá)了。5.must+have done：對(duì)過(guò)去發(fā)生的行為肯定的推測(cè)。其否定式為：cannot have doneYou must have seen the film.你肯定看過(guò)那部電影。You cannot have seen the film.你不可能看過(guò)那部電影。6.neednt+have done：本來(lái)不必要做的而實(shí)際上又做了You neednt have watered the flowers,for it is going to rain.你本沒(méi)必要澆花的，因?yàn)榫鸵掠炅恕Ｗ⒁猓?/p>

23、didnt need to(have to)do :沒(méi)有必要做而實(shí)際上也沒(méi)有做I didnt need to clean the windows.My sister did it 2 hours ago.我沒(méi)必要擦窗戶。我姐姐兩小時(shí)前剛擦過(guò)。7.should(ought to)+ have done：本來(lái)應(yīng)該做而實(shí)際上又沒(méi)有做。其否定形式表示某種行為不該發(fā)生卻發(fā)生了。You should have started earlier, but you didnt.你應(yīng)該早點(diǎn)開始的，但是你沒(méi)有。 She shouldnt have taken away my measuring tape, for

24、I wanted to use it.他本不應(yīng)該拿走我的字典的，因?yàn)槲椰F(xiàn)在需要它。（一）“if”虛擬條件句主從句謂語(yǔ)動(dòng)詞的構(gòu)成情 況從句謂語(yǔ)動(dòng)詞的構(gòu)成主句謂語(yǔ)動(dòng)詞的構(gòu)成與現(xiàn)在事實(shí)相反過(guò)去式（be用were）should/would/could/might+動(dòng)詞原形與過(guò)去事實(shí)相反had+過(guò)去分詞should/would/could/might+have+過(guò)去分詞與將來(lái)事實(shí)相反過(guò)去式should+動(dòng)詞原形were+不定式should/would/could/might+動(dòng)詞原形注意：從句中的should可用于各種人稱，且不可以被would所代替。If he were here, he would

25、help us.如果他在這里，他會(huì)幫助我們的。If I had been free at that time, I would have visited you.如果那時(shí)我有空的話，我就拜訪你了。If it should rain tomorrow, we would not go camping.如果明天下雨的話，我們就不去野營(yíng)。（二）省略“if”的虛擬條件句將虛擬條件從句中的“were，had，should”放到主語(yǔ)之前，構(gòu)成部分倒裝Should he come, tell him to ring me up.如果他來(lái)，告訴他讓他給我打電話。Were I you, I would not

26、do it.如果我是你，我就不做。Had I been free, I would have visited you.如果我有空的話，我就拜訪你了。（三）混合虛擬條件句1.不同時(shí)間的虛擬，遵守相應(yīng)的規(guī)則If he had listened to me, he would not be in trouble now.要是他聽了我的話，現(xiàn)在就不會(huì)有麻煩了。（從句與過(guò)去事實(shí)相反，主句與現(xiàn)在事實(shí)相反）If he had told me yesterday, I should know what to do now. 要是他昨天告訴我了，我就知道現(xiàn)在做什么了。（從句與過(guò)去事實(shí)相反，主句與現(xiàn)在事實(shí)相反）I

27、f I were you, I would have gone to her birthday party. 如果我是你，我就去參加他的生日聚會(huì)了。（從句與現(xiàn)在事實(shí)相反，主句與過(guò)去事實(shí)相反）2.虛擬與陳述的混合，遵守相應(yīng)的規(guī)則He could have passed the exam, but he wasnt careful enough. 他本來(lái)能通過(guò)考試的，但他不夠細(xì)心。You should have come earlier. The bus left a moment ago. 你應(yīng)該早一點(diǎn)來(lái)的，汽車剛走一會(huì)兒。（四）含蓄虛擬條件句：即不用“if”而用其它形式給出虛擬條件1.用“bu

28、t for+名詞”表示虛擬條件Did you make it at last?你們最后成功了嗎？Yes.But for your help, itwould have caused a serious loss.成功了，要不是你的幫助，我們的損失就大了。2.用“without+名詞”表示虛擬條件Without electricity, human life would be quite different today.如果沒(méi)有電的話，人類今天的生活就會(huì)大為不同。3.用“動(dòng)詞不定式”表示虛擬條件It would be only partly right to follow in this way

29、.如果這樣做，僅僅對(duì)了一半。4.用“現(xiàn)在分詞”表示虛擬條件Having known in time ,we might have prevented the accident.要是及時(shí)得知的話，我們也許能阻止這場(chǎng)事故。5.用“過(guò)去分詞”表示虛擬條件Given more attention, the tree could have grown better.如果多留心的話，這樹本來(lái)可以長(zhǎng)的更好。6.用“副詞otherwise”表示虛擬條件I was too busy at that time. Otherwise, I would have called you.我當(dāng)時(shí)太忙，否則我就給你打電話了

30、。7.用“連詞but連接的句子”表示隱含的虛擬條件He _fatter but he eats too little.A. would become B. would have become C. must become D. must have become 【解析】答案為A。從后句“但是他吃得太少”來(lái)看，隱含著虛擬即：如果他吃得多點(diǎn)，就會(huì)胖些了。（五）特殊句式虛擬結(jié)構(gòu)1.suggest, order, propose, request, require, demand, advise, insist+ 賓語(yǔ)從句(should )doHe suggested that we (should)

31、not change our mind.他建議我們不要改變主意。He insisted that he (should) go to work in the south.他堅(jiān)持要到南方去工作。注意：當(dāng)suggest表示暗示，insist表示堅(jiān)持觀點(diǎn)，事實(shí)時(shí)，后接的賓語(yǔ)從句應(yīng)當(dāng)用真實(shí)語(yǔ)氣。His silence suggested that he agreed with my decision.他的沉默說(shuō)明了他同意我的決定。He insists that doing morning exercises does good to peoples health.他堅(jiān)持認(rèn)為做早操對(duì)人的身體有益。2.I

32、t is suggested/advised/ordered/requested/required+ that從句(should) doIt is suggested that more students should go to university.有人建議應(yīng)該有更多的學(xué)生去上大學(xué)。3.My advice/suggestion/request/requirement/order/proposal+ is +表語(yǔ)從句(should)do My advice is that you should practice speaking English as often as possible.我的

33、建議是有應(yīng)該盡可能多地練習(xí)說(shuō)英語(yǔ)。4.His suggestion/advice/request/requirement+ 同位語(yǔ)從句(should )do+ is. The request that they should get more is reasonable.他們得到更多的要求是合理的。5.It is natural/necessary/strange +that從句 (should) do表驚奇、懷疑、惋惜、不滿、理應(yīng)如此等。Its strange that he should have missed the train. 真奇怪，這樣的一個(gè)人竟然是我們的朋友。（表竟然） It

34、is important that we should learn from others.重要的是我們理應(yīng)向他人學(xué)習(xí)。（表理應(yīng)如此）It is a pity that he should not go with us.真遺憾，他不肯跟我們一起走。(表惋惜)6.wish + that clause (did/were 與現(xiàn)在相反)wish + that clause (would/could/might + do與將來(lái)相反)wish + that clause ( had done 與過(guò)去相反)I wish I were a doctor. 我希望我是個(gè)醫(yī)生就好了。(現(xiàn)在)I wish tha

35、t the rain would stop. 我希望雨能停下來(lái)。(將來(lái))I wish that he had not made so much fuss about it. 我希望他不要把事情搞大了。(過(guò)去)7.It is (high) time + 從句(did或should do )It is (high) time we went/should go home.我們真該回家了。8.would rather + 從句 (did 與現(xiàn)在或?qū)?lái)相反)；（had done 與過(guò)去相反）I would rather you came tomorrow.我寧愿你現(xiàn)在呆在家里。I would rath

36、er you hadnt told her the news.我寧愿你沒(méi)有把這個(gè)消息告訴她。9.省去條件從句或主句：表示虛擬語(yǔ)氣的主句或從句有時(shí)可以省略，但其含義仍可以推知省去條件從句You could have washed your clothes yourself. 你本可以自已洗衣服的。（省去了“If you had wanted to”，事實(shí)是：你自己沒(méi)洗衣服，因?yàn)槟悴幌胂础＃┦∪ブ骶?常用以表示愿望) If only + 從句( did/were與現(xiàn)在相反)/ (would/could/might + do與將來(lái)相反) /( had done 與過(guò)去相反) “要是就好了”If my

37、 grandmother were with me! 如果我的祖母與我在一起多好啊!(事實(shí)是:祖母已不在世了。)If only she had not left! 如果她沒(méi)走就好了!(事實(shí)是:她已經(jīng)走了。)If only he would come tomorrow!要是他明天能來(lái)該多好??！注意：only if是“只要”的意思，從句中用陳述語(yǔ)氣。10.as if +從句 (did/were 與現(xiàn)在相反) / (would/could/might + do與將來(lái)相反)/( had done 與過(guò)去相反) Ive loved you as if you were my relative.我一直愛(ài)你

38、仿佛你是我的親人。They talked as if they had been friends for years.他們交談起來(lái)就像是處了多年的朋友。注意：“as if/as though”引導(dǎo)的狀語(yǔ)從句中也可以用陳述語(yǔ)氣：當(dāng)說(shuō)話者認(rèn)為所述的是真實(shí)的或極有可能發(fā)生或存在的事實(shí)時(shí)：It sounds as if it is raining. 聽起來(lái)像是在下雨。He talks as if he is drunk. 從他談話的樣子來(lái)看他似乎是喝醉了。（一）情態(tài)動(dòng)詞If it were not for the fact that she _ sing, I would invite her to

39、the party. A. couldnt B. shouldnt C. cant D. might not【解析】The World Wide Web is sometimes jokingly called the World Wide Wait because it _be very slow.A. should B. must C. will D. can【解析】We hope that as many people as possiblejoin us for the picnic tomorrow.A. need B. must C. should D. can【解析】Helen

40、_ go on the trip with us, but she isnt quite sure yet.A. shall B. must C. may D. can【解析】I think Ill give Bob a ring.You _. You havent been in touch with him for ages. A. will B. may C. have to D. should【解析】There _ be any difficulty about passing the road test since you have practiced a lot in the dr

41、iving school. A. mustnt B. shant C. shouldnt D. neednt 【解析】Whats the name? Khulaifi._I spell that for you? A. Shall B. Would C. Can D. Might【解析】一What does the sign over there read?一No person _smoke or carry a lighted cigarette，cigar or pipe in this area.A. will B. may C. shall D. must【解析】In crowded

42、places like airports and railway stations, you_ take care of your luggage.A. can B. may C. must D. will【解析】Could I have a word with you, mum?Oh dear, if you _.A. can B. must C. may D. should【解析】What do you think we can do for our aged parents?You_do anything except to be with them and be yourself. A

43、. dont have to B. oughtnt to C. mustnt D. cant【解析】Some aspects of a pilots job _be boring, and pilots often _work at convenient hours. A. can; have to B. may; can C. have to; may D. ought to; must【解析】Yoube hungry already you had lunch only two hours ago!A. wouldnt B. cantC. mustntD. neednt【解析】Theres

44、 no light onthey_be at home.A. cant B. mustnt C. neednt D. shouldnt【解析】Ive take someone elses green sweater by mistake. It_Harrys.He always wears green. A.has to beB.will be C.mustnt be D.could be【解析】The weather turned out to be fine yesterday. Ithe trouble to carry my umbrella with me.A. should hav

45、e taken B. could have taken C. neednt have taken D. mustnt have taken【解析】As you worked late yesterday, you_have come this morning.A. maynt B. cant C. mustnt D. neednt【解析】I told your friend how to get to the hotel, but perhaps Ihave driven her there.A. could B. must C. might D. should【解析】Im sorry. I

46、_at you the other day.Forget it. I was a bit out of control myself.A. shouldnt shout B. shouldnt have shoutedC. mustnt shout D. mustnt have shouted【解析】Guess what! I have got A for my term paper.Great!You_read widely and put a lot of work into it.A. must B. should C. must have D. should have【解析】He _

47、have completed his work; otherwise, he wouldnt be enjoying himself by the seaside.A. should B. must C. wouldnt D. cant【解析】Where is my dictionary? I remember I put it here yesterday.Youit in the wrong place.A. must put B. should have put C. might put D. might have put【解析】Shehave left school, for her

48、bike is still here.A. cant B. wouldnt C. shouldnt D. neednt【解析】Thank you for all your hard work last week. I dont think weit without you.A. can manage B. could have managed C. could manage D. can have managed【解析】He paid for a seat, when he _ have entered free. A. could B. would C. must D. need【解析】（二

49、）虛擬語(yǔ)氣If there were no subjunctive mood, English _ much easier. A. will be B. would have been C. could have been D. would be【解析】_he had not hurt his leg, John would have won the race.A. If B. SinceC. Though D. When【解析】If it _ tomorrow, we_ put off the visit to the YangpuBridge. A.rains; would have ha

50、d to B.were to rain; will have to C.should rain; would have toD.rained; should have had to 【解析】特別注意省略“if”的虛擬條件句_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【解析】_for the free tickets, I would not have gone t

51、o the films so often. A. If it is not B. Were it not C. Had it not been D. If they were not 【解析】If Newton lived today, he would be surprised by what_in science and technology.A. had discovered B. had been discovered C. has discovered D. has been discovered【解析】They_two free tickets to Canada, otherwi

52、se theyd never have been able to afford to go.A.had got B.got C.have got D.get 【解析】But for the Party, he _ of hunger 30 years ago. A. would have died B. must have died C. would die D. died【解析】Without the air to hold some of the suns heat, the earth at night_, too cold for us to live. A.would be free

53、zing cold B. will be freezing coldly C.would be frozen cold D. can freeze coldly 【解析】Having known earlier, we_such a thing from happening again. A.would stopped B.should have stopped C.would have stopped D.need have stopped【解析】 He _ in the experiment last time. Luckily he followed your advice. A.failed B.was failing C.might have fail