考點一、條件句中的虛擬語氣

　　【考例】

　　—It rained cats and dogs this morning. I’m glad we took an umbrella.

　　—Yeah, we would have got wet all over if we _____. (2013重慶)

　　A. hadn’t B. haven’t C. didn’t D. don’t

　　解析：Awould have got wet可知，

　　考點二、錯綜時間/混合虛擬語氣

　　【考例】

　　Maybe if I ______ science, and not literature then, I would be able to give you more help. (2011北京)

　　A. studied B. would study C. had studied D. was studying

　　解析：C。當(dāng)條件從句與結(jié)果主句所表示的時間不一致時，虛擬語氣的形式應(yīng)做相應(yīng)的調(diào)整。句意：也許如果當(dāng)時我學(xué)習(xí)的是科學(xué)而不是文學(xué)的話，那么我(現(xiàn)在)就可以給你更多的幫助了。根據(jù)句意和would be可知主句表示對現(xiàn)在的虛擬，根據(jù)then一詞可以確定此處條件句表示與過去事實相反，從句謂語動詞使用had done的形式。

　　考點三、虛擬條件從句的倒裝和省略

　　【考例】

　　Had they known what was coming next, they _____ second thoughts. (2012浙江)

　　A. may have B. could have C. must have had D. might have had

　　解析：Dwere, had(助動詞)或should，if，were, had或should放在主語前構(gòu)成倒裝。如果條件句是否定形式，倒裝時只能把not放在主語的后面。句意：他們要是早知道將要發(fā)生什么的話，也許就會有另外的想法了。 根據(jù)Had they known可知，應(yīng)用與過去事實相反的虛擬語氣。

　　考點四、含蓄條件虛擬語氣

　　【考例】

　　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

　　解析：D。虛擬語氣中有時假設(shè)的情況并不以條件從句的形式表現(xiàn)出來，而暗含在上下文中，通過某些詞語(如without, otherwise, but, but for等)表現(xiàn)出來。句意：我們在小村莊里迷路了，否則昨天我們就會參觀更多的名勝。

　　考點五、“(should) do” 型虛擬語氣 (主要用在名詞性從句中)

　　【考例1】

　　Teachers recommend parents ______ their children under 12 to ride bicycles to school for safety. (2010福建)

　　A. not allow B. do not allow C. mustn’t allow D. couldn’t allow

　　解析：A。句意：為了安全起見，老師建議家長不要讓12歲以下的孩子騎自行車上學(xué)。在表示建議、要求、命令等的名詞性從句中，謂語動詞用“(should)+動詞原形”形式。常用于此情況的詞語有：堅持(insist)，命令(order, command), 建議(suggest/suggestion, advise, recommend/recommendation)，要求(ask, demand，request, require/requirement)等等。

　　【考例2】

　　—Don’t you think it necessary that he ______to Miami but to New York?

　　—I agree, but the problem is ______ he has refused to. (2005江蘇)

　　A. will not be sent; that

　　B. not be sent; that

　　C. should not be sent; what

　　D. should not send; what

　　解析：B。“(should)+do”型虛擬語氣還包括It is necessary, important... + that+主語+(should)+ do句型。

　　考點六、wish(ed)后從句中的虛擬語氣

　　【考例】

　　— Where are the children? The dinner’s going to be completely ruined.

　　— I wish they ______ always late. (2011北京)

　　A. weren’t B. hadn’t been

　　C. wouldn’t be D. wouldn’t have been

　　解析：A。句意： ——孩子們都到哪里去了?宴會就要被他們徹底破壞了。 —— 我希望他們不要總是遲到。由always可知本題表示從句動作與wish同時存在或發(fā)生，故選擇A。在wish后面的賓語從句中的謂語動詞要用虛擬語氣。與現(xiàn)在事實相反用動詞過去式(be常用were); 與過去事實相反用過去完成時或could/would+ have done;與將來事實相反用could/would/might +動詞原形。注意：“hope +從句”結(jié)構(gòu)中，從句要用陳述語氣。

　　考點七、特殊句式中的虛擬語氣 (It’s time that / would rather / as if /if only等)◆在It is (high) time that句型中，從句常用一般過去時。

　　3. If you like, we _____ send you some samples (樣品) of our latest skin creams for you to try out.

　　A. may B. can C. must D. should

　　4. The rule states that all the people present _____ stay until the meeting is over.

　　A. can B. could C. may D. shall

　　5. Tom, you _____ leave all your clothes on the floor like this!

　　A. wouldn抰 總B. mustn抰 C. needn抰 ld D. might not

　　6. 桵y umbrella has disappeared. Who _____ have taken it?

　　桰 have no idea.

　　A. should B. must C. could D. would

　　7. How _____ you expect your children to be truthful when you yourself tell lies?

　　A. can B. shall C. may D. must

　　8. —What language are they speaking?

　　—I’m not sure. It _____ be French or Spanish.

　　A. might B. will C. must D. would

　　9. You _____ take the book out of the library. You have to read it here.

　　A. daren抰 B. can抰 C. needn抰 . m D. wouldn抰

　　10. 桰s the girl over there Wei Fang?

　　桸o, it _____ be her. She has gone to Tianjin.

　　A. needn抰 B. mustn抰 C. won抰 D. wo D. can抰

　　11. Even experienced teachers _____ make mistakes, let alone a green hand like her.

　　A. must? B. will C. can D. should

　　12. You _____ know, drunken driving is forbidden in our country. It抯 against the law!

　　A. must. B. will C. may D. need

　　13. She _____ have missed the train, in which case she won抰 arrive for another hour.

　　A. may B. can e C. should D. would

　　14. 桾here抯 not a Peter here.

　　桽orry. I _____ the wrong number.

　　A. might dial B. can have dialed C. could dialn e D. must have dialed

　　15. She _____ come in person; a call would have been enough.

　　A. should have B. could have C. needn抰 have D. mustn抰 have

　　16. You _____ have made fun of him. He is not the one you laugh at but learn from.

　　A. mustn抰 B. needn抰 C. mightn抰 be D. ought not to

　　17. What a pity! Considering his ability and experience, he _____ better.

　　A. need have done B. must have done C. can have done D. might have done

　　18. Why are we not allowed to enter the park? It _____ be accessible to everyone.

　　A. should B. would C. will D. might

　　19. 桯appy birthday!

　　桾hank you! It抯 the best present I _____ for. (2012ne 江蘇)

　　A. should have wished B. must have wished

　　C. may have wished D. could have wished

　　20. — Where is Mr. Smith? I can’t find him anywhere.

　　— He _____ far, for his mobile phone is still here.

　　A. mustn’t have gone B. wouldn’t have gone

　　C. can’t have gone D. shouldn’t have gone

　　21. As sales manager, I _____ admit, there have been some faults in our sales strategies (策略) in the past three months.

　　A. may B. will C. must D. can

　　22. Born in the city, you _____ imagine the difficulty a child in some distant mountain village has going to school.

　　A. mustn抰 B. can抰 C. needn抰 D. shall not

　　23. ?Has Mr. Zhang gone back home already? vill

　　?He _____ have left the office, but you抎 better go and check for you. rself.

　　A. may not B. can抰 C. mustn抰 D. needn抰

　　24. The words on the wall _____ written by Li Tong ?I抦 quite familiar with his unique handwriting.

　　heck A. must be B. may not be C. might have been D. couldn’t have been

　　25. If we _____ adequate preparations, the conference wouldn’t have been so successful. (2012山東)

　　A. haven’t made B. wouldn’t make C. didn’t make D. hadn’t made

　　26. The guide suggested that we _____ victim to wild animals, so we dismissed the idea to go deeper into the forest.

　　A. fell B. might fall C. fall D. should fall

　　27. You _____ worry about the children梩ohey are taken good care of in the kindergarten.

　　A. mustn抰 B. can抰 C. needn抰 D. mayn抰

　　28. It抯 important that these application forms _____ back as early as possible.

　　A. must be sent B. will be sent C. are sent D. be sent

　　2ildre9. The plant is dead. Maybe I _____ have given it more water.

　　A. will B. can C. must D. should

　　30. ?hI’ve taken someone else’s green sweater by mistake.

　　—It _____ Harry’s. He always wears green.

　　A. has to be B. will be C. mustn’t be D. could be

　　31. —Shall I open the window?

　　—I’d rather you _____. It’s too cold outside.

　　A. don’t B. didn’t C. won’t D. hadn’t

　　32. I really appreciate what you’ve done for me. Without you, I _____ in finding a job so soon.

　　A. can’t have succeeded B. won’t succeed

　　C. wouldn’t succeed D. couldn’t have succeeded

　　33. She wishes that we _____ her the box of chocolate yesterday because she’s on a diet.

　　A. didn’t send B. don’t send C. wouldn’t send D. hadn’t sent

　　34. I don’t have a cell phone. If I _____ one, it would be convenient for me to get in touch with others.

　　A. had B. have C. will have D. had had

　　35. We _____ have bought so much food now that Suzie won’t be with us for dinner. (2012江西)

　　A. may not B. needn’t C. can’t D. mustn’t

　　36. We _____ at the bus station. Otherwise we would have been here by lunchtime.

　　A. had been delayed B. were delayed

　　C. have been delayed D. are delayed

　　37. What do you think of his suggestion that we _____ to the beach for a holiday? Isn’t it excellent?

　　A. will go B. go C. are going D. would go

　　38. _____ six more votes in the last election, he would be our chairman now.

　　A. Did Paul receive B. Should Paul receive

　　C. Had Paul received D. Were Paul to receive

　　39. It is required in the school regulations that teachers _____ cell phones in class.

　　A. don’t use B. shouldn’t use C. won’t use D. mightn’t use

　　40. The examination is coming. It’s time we _____ full use of every minute to go over our lessons.

　　A. made B. will make C. must make D. make