虛擬語氣專項(xiàng)練習(xí)題解析
虛擬語氣專項(xiàng)練習(xí)題解析
語法的練習(xí)中，經(jīng)常加強(qiáng)并復(fù)習(xí)虛擬語氣相關(guān)的練習(xí)題，有利于提高我們對(duì)于虛擬語氣的運(yùn)用熟悉度。以下是小編給大家?guī)硖摂M語氣練習(xí)題目，以供參閱。
虛擬語氣專項(xiàng)練習(xí)題解析1
1.His doctor suggested that he ______ a short leave of absence.
A.will take B.would take C.take D.took
2.The job would require that ______ at 7 o'clock every morning.
A.he will be at the factory B.he be at the factory
C.he was at the factory D.he has been at the factory
3.Your advice that she ______ till next week is reasonable.
A.will wait B.is going to wait C.waits D.wait
4.The housemaster was strict.He requested that we ______ television on week nights.
A.not watch B.must not to watch
C.not be watching D.have not watched
5.It is necessary that a worker ______ his work on time.
A.accomplishes B.can accomplish
C.accomplish D.has accomplished
6.It is important that he ______ his decision before Friday.
A.will make B.makes C.make D.must make
7.You look so tired. It's time you ______ .
A.go to sleep B.went to sleep
C.go to bed D.went to bed
8.I'd rather you ______ anything about it for the time being.
A.do B.didn't do C.don't D.didn't
9.But for water，it ______ impossible to live in the desert.
A.is B.was C.were D.wouldn't be
10. ______ it______ for your help，I couldn't have made any progress.
A.Had;not been B.Should;not been
C.Did;not been D.Not;be
11.Long ______ the Party!
A.lives B.live C.will live D.should live
12.Mary insisted that Tom ______ her the ring back.
A.gives B.give C.given D.have given
13.My suggestion was that the meeting ______ off till next week.
A.to put B.be put
C.should put D.be putting
14.Mother suggested that I ______ my homework first before watching TV.
A.did B.do C.shall do D.have done
15.He insisted that nothing ______ till he arrived.
A.must be started B.ought to be started
C.could be started D.should be started
16.Tom suggests that Ann ______ the house.
A.can sell B.sells C.sell D.sold
17.It's better that he ______ it from you.
A.'ll hear B.hears C.should hear D.heard
18.It was necessary that he ______ about what had happened.
A.be told B.was told C.should tell D.tell
19.It's astonishing that she ______ sad at news that it has nothing to do with her.
A.felt B.should feel C.'ll feel D.would feel
20.It was strange that we ______ short of water in the country where it was always raining.
A.are B.be C.should be D.both B and C
21.It is strange that she ______ marry such an ugly man.
A.would B.should C.shall D.must
22.It's not right that the meeting ______ off till tomorrow.
A.must be put B.must put C.will be put D.be put
23.It was impossible that he ______ the train, for he had started out very early.
A.could have missed B.must have missed
C.should have missed D.should miss
24.It's a pity that he ______ such a good chance.
A.should miss B.should have missed C.has missed D.all the above
25.He tried to find some excuse for the debt, but I insisted that he ______ it off at once.
A.must pay B.ought to pay C.paid D.pay
26.Mr. Ford insisted that he ______ right, though the others didn't think so.
A.should do B.should have done C.had done D.did
27.His pale face suggested that he ______ the sad news.
A.should be told B.should have been told
C.was told D.had been told
28.He suggested that we ______ here at once.
A.should leave B.must leave C.left D.ought to leave
29.My order is that everyone ______ their own work in time.
A.must complete B.completed C.completes D.complete
30.We've made the decision that we ______ at the school gate at 7 tomorrow morning.
A.will gather B.are about to gather
C.would gather D.should gather
31.----I'll be waiting for you at home.
---- ______ I were busy and couldn't come?
A.What if B.What when C. How if D.How when
32.After he was praised for what he had done, he said，“I ______ even better under harder conditions. ”
A.would do B.would have done C.did D.had done
33.It has been raining for a day, but even though it ______ , we ______ there by tomorrow.
A.hadn't rained, couldn't get B.hadn't rained, can't get
C.didn't rain, couldn't get D.didn't rain, can't get
34.We could not have succeeded ______ your help.
A.but for B.without
C.if it had not been for D.all the above
35.I dare say he is not your true friend, because a true friend ______ differently when you were in trouble.
A.acted B.had acted C.would act D.would have acted
參考答案：
1.C 2.B 3.D 4.A 5.C
6.C 7.D 8.B 9.D 10.A
11.B 12.B 13.B 14.B
15. D insist作“要求別人做某事”解，其賓語從句用should型虛擬語氣。
16. C 這種should型虛擬語氣，有時(shí)可將should省略，因此，C項(xiàng)的sell不能有人稱變化。
17.C 本句話有“要求”的意思，故選C。
18. A C、D為主動(dòng)，在此不妥。
19. B 選B表示了說話人帶有一種十分驚訝的感情，選A項(xiàng)與she的人稱不相一致，是錯(cuò)的。參見本章語法說明。
20. D
21.B should帶有感情色彩。
22.D 本句帶有要求之意，故從句謂語用should型虛擬語氣。D項(xiàng)中的should被省略。
23.C 本句帶有驚訝之意，故從句須用should型虛擬語氣。但由于是過去的事情所產(chǎn)生的驚訝，所以用should+不定式完成式。
24.D 如選A，這表達(dá)了說話人對(duì)將來的事所發(fā)出的感嘆，選B則是對(duì)已經(jīng)過去的事情的感嘆。選C則是一個(gè)直陳語氣，即說話人對(duì)此并不一定感到十分惋惜，而是對(duì)此事的陳述。
25.D insist在作“堅(jiān)持要求別人做某事”時(shí)，需要用should型虛擬語氣，should也可以省略。
26.C insist在作“堅(jiān)持自己的觀點(diǎn)、看法等”解時(shí)，不需要用虛擬語氣，所以A、B兩項(xiàng)用在此處不當(dāng)。D項(xiàng)時(shí)態(tài)不準(zhǔn)確，故也應(yīng)排除。
27.D suggest作建議解時(shí)，后接了should型虛擬語氣，但在本句中作“表明”解，這時(shí)不用虛擬語氣，A、B兩項(xiàng)都應(yīng)排除，C項(xiàng)時(shí)態(tài)不當(dāng)。
28.A 在本句中suggest作“建議”解，故選A。
29.D “建議”、“命令”、“要求”等動(dòng)詞的名詞形式做主語時(shí)，其表語從句也須用should型虛擬語氣，本句中的should被省略。
30.D “建議”、“命令”、“要求”等動(dòng)詞的名詞形式做主語時(shí)，后接同位語從句時(shí)也須should型虛擬語氣。
31.A What if…?常用于省略疑問句，既可以用于虛擬語氣，也可用于直陳語氣。本句不省略的形式為What would you do if。
32.B 本句的under引出一個(gè)非真實(shí)的條件，當(dāng)然也可以是真實(shí)條件。根據(jù)上下文，應(yīng)理解為與過去事實(shí)相反，故其謂語動(dòng)詞用would have done。
33.B even though=even if意為“即使”。它同if一樣可以引出一個(gè)真實(shí)的讓步從句，也可以引出一個(gè)非真實(shí)的讓步從句。根據(jù)上文，even though是一個(gè)非真實(shí)的與過去事實(shí)相反的讓步從句。而主句we can't get there卻是一個(gè)真實(shí)的情況。
34.D
35.D 從全句的意思分析，a true friend-differently實(shí)際上是指一種假設(shè)，而when引導(dǎo)的從句又告訴我們，這是一個(gè)與過去事實(shí)相反的假設(shè)，故用would have acted。
虛擬語氣專項(xiàng)練習(xí)題解析2
1. If I ____ where he lived， I ____ a note to him.
A. knew， would
B. had known， would have sent
C. know， would send
D. knew， would have sent
2. If they ____ earlier than expected， they ____ here now.
A. had started， would be
B. started， might be
C. had started， would have been
D. will start， might have been
3. I didn't know his telephone number. ____ it， I ____ then.
A. Had I known， would ring him up
B. Should I know， would have rung him up
C. If I knew; would ring him up
D. Had I known; would have rung him up
4. Mary is ill today. If she _____， she ____ absent from school.
A. were not ill， wouldn't be
B. had been ill， wouldn't have been
C. had been ill， should have been
D. hadn't been ill， could be
5. Were I to do it， I ________ it some other way.
A. will do B. would do C. would have done D. were to do
6. I ________ him the answer ________ possible， but I was so busy then.
A. could tell， if it had been
B. must have told， were it
C. should have told， had it been
D. should have told， should it be
7. Without your help， we________ so much.
A. won't achieve B. didn't achieve C. don't achieve D. wouldn't have achieved
8. You didn't take his advice. ________ his advice， you ________ such a mistake.
A. Had you taken， wouldn't have made
B. If you had taken， would make
C. Were you lo take， shouldn't have made
D. Have you taken， won't have made
9. We wish we ____ what you did when we were at high school.
A. did B. could have done C. have done D. should do
10. She wishes she ____ to the theatre last night.
A. went B. would go C. had gone D. were going
11. Tom is very short now. His mother wishes that he ________ be tall when he grows up.
A. could B. should C. would D. were able to
12. My sister advised me that I ________ accept the invitation.
A. could B. must C. should D. might
13. He asks that he ________ an opportunity to explain why he's refused to go there.
A. is given B. must give C. should give D. be given
14. Do you think of Wang Fang's suggestion that he ________ Mr. Li to the party?
A. will invite B. have invited C. is invited D. invite
15. I insisted that he ________ at once.
A. be gone B. go C. would go D. might go
16. Li Ming insisted that he ________ anything at all.
A. hadn't stolen B. shouldn't steal C. doesn't steal D. steal
17. It is quite natural that my coming late again ________ them very angry.
A. had made B. would make C. makes D. make
18. He acted as if he ________ everything in the world.
A. knew B. knows C. has known D. won't know
19. Read it aloud so that I ________ you clearly.
A. may hear B. will hear C. hear D. have heard
20. They got up early in order that they ________ they first train.
A. caught B. will catch C. might catch D. shall catch
21. I am sorry that he ________ in such poor health.
A. are B. shall be C. were D. should be
22. That is a good book. You ________ it yesterday.
A. could buy B. should buy C. should have bought D. bought
23. It is high time we ________ home.
A. will go B. would go C. have gone D. went
24. I'd rather that you ________ home.
A. went B. have gone C. will go D. had gone
25. If only I _________ to the lecture!
A. listen B. will listen C. am listening D. had listened
26. —— If he_____， he ______ that food.
---- Luckily he was sent to the hospital immediately.
A. was warned， would not take
B. had been warned， would not have taken
C. would be warned， had not taken
D. would have been warned， had not taken
27. I didn't see your sister at the meeting. If she _________， she would have met my brother.
A. has come B. did come C. came D. had come
28. Without electricity， human life ________ quite different today.
A. is B. will be C. would have been D. would be
29. He ________ you more help， even though he was very busy.
A. might have given B. might give C. may have given D. may give
30. If city noises _______ from increasing， people _______ shout to be heard even at the dinner table 20 years from now.
A. are not kept， will have to
B. are not kept， have to
C. do not keep， will have to
D. do not keep， have to
31. Mike's father， as well as his mother， insisted that he ________ home.
A. stayed B. could stay C. has stayed D. stay
32. Mr. Smith insisted that he ________ the work all.
A. had done B. have done C. did D. so
33. Jane would never have gone to the party ________ that Mary would come to see her.
A. has she known B. had she known C. if she know D. if she has known
34. If you had enough money， what ________?
A. will you buy
B. would you buy
C. would you have bought
D. will you have bought
35. If you ________ that film late last night， you wouldn't be so sleepy.
A. didn't see B. haven't seen C. wouldn't have seen D. hadn't seen
36. Our monitor requested that ________.
A. all the clastudied more carefully the problem
B. the problem was more carefully studied
C. with great care the problem could be studied
D. all the clastudy the problem more carefully
37. —— Would you have called her up had it been possible?
Yes, but I ________ busy doing my homework.
A. was B. were C. had been D. would be
38. His tired face suggested that he ________ really tired after the long walk.
A. had been B. was C. be D. should be
39. It is important that we ________.
虛擬語氣專項(xiàng)練習(xí)題解析3
1.I enjoyed the movie very much. I wish I _____ the book from which it was made.
A. have read B. had read
C. should have read D. are reading
2.You are late. If you _____ a few minutes earlier, you _____ him.
A. come; would meet B. had come; would have met
C. come; will meet D. had come; would meet
3.The two students talked as if they _____ friends for years.
A. should be B. would be
C. have been D. had been
4.It is important that I _____ with Mr. Williams immediately.
A. speak B. spoke
C. will speak D. to speak
5.He looked as if he _____ ill for a long time.
A. was B. Were C. has been D. had been
6.If the doctor had come earlier, the poor child would not _____.
A. have laid there for two hours B. have been lied there for two hours
C. have lied there for two hours D. have lain there for two hours
7.I wish that I _____ with you last night.
A. went B. could go
C. have gone D. could have gone
8.Let’s say you could go there again, how _____ feel?
A. will you B. should you
C. would you D. do you
9.I can’t stand him. He always talks as though he _____ everything.
A. knew B. knows
C. has known D. had known
10._____ the fog, we should have reached our school.
A. Because of B. In spite of
C. In case of D. But for
11.If you had told me in advance, I _____ him at the airport.
A. would meet B. would had met
C. would have met D. would have meet
12.Mike can take his car apart and put it back together again. I certainly wish he_____ me how.
A. teaches B. will teach
C. has taught D. would teach
13.I would have told him the answer, had it been possible, but I _____ so busy then.
A. had been B. were
C. was D. would be
14.He’s working hard for fear that he _____.
A. should fall behind B. fell behind
C. may fall behind D. would fallen behind
15.If it _____ another ten minutes, the game would have been called off.
A. had rained B. would have rained
C. have seen D. rained
16.He suggested that they _____ use a trick instead of fighting.
A. should B. would
C. do D. had
17.My father did not go to New York; the doctor suggested that he _____ there.
A. not went B. won’t go
C. not go D. not to go
18.I would have gone to the meeting if I _____ time.
A. had had B. have had
C. had D. would have had
19.Would you rather I _____ buying a new bike?
A. decided against B. will decide against
C. have decided D. shall decide against
20.You look so tired tonight. It is time you _____.
A. go to sleep B. went to sleep
C. go to bed D. went to bed
21.—Why didn’t you buy a new car?
—I would have bought one if I _____ enough money.
A. had B. have had
C. would have D. had had
22.If she could sew, _____.
A. she make a dress B. she would have made a shirt
C. she will make a shirt D. she would had made a coat
23._____ today, he would get there by Friday.
A. Would he leave B. Was he leaving
C. Were he to leave D. If he leaves
24.His doctor suggested that he _____ a short trip abroad.
A. will take B. would take
C. take D. took
25.The Bakers arrived last night. If they’d only let us know earlier,_____ at the station.
A. we’d meet them B. we’ll meet them
C. we’d have met them D. we’ve met them
26.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 pay
27.We might have failed if you _____ us a helping hand.
A. have not given B. would not give
C. had not given D. did not give
28.The law requires that everyone _____ his car checked at least once a year.
A. has B. had
C. have D. will have
29.It is strange that he _____ so.
A. would say B. would speak
C. should say D. will speak
30.Had I known her name, _____
A. or does she know mine? B. and where does she live?
C. she would be beautiful. D. I would have invited her to lunch.
31.He has just arrived, but he talks as if he _____ all about that.
A. know B. knows
C. known D. knew
32.If I _____ the money, I would have bought a much bigger car.
A. possessed B. owned
C. had D. had had
33.He was very busy yesterday; otherwise, he _____ to the meeting.
A. would come B. came
C. would have come D. will come
34.The librarian insists that John _____ no more books from the library before he returns all the books he has borrowed.
A. will take B. took
C. take D. takes
35.I left very early last night, but I wish I _____ so early.
A. didn’t leave B. hadn’t left
C. haven’t left D. couldn’t leave
36.I do not have a job. I would find one but I _____ no time.
A. had B. didn’t have
C. had had D. have
37.I wish that you _____ such a bad headache because I’m sure that you would have enjoyed the concert.
A. hadn’t B. didn’t have had
C. hadn’t had D. hadn’t have
38.He insisted that we all _____ in his office at one o’clock.
A. be B. to be
C. would be D. shall be
39.Helen couldn’t go to France after all. That’s too bad. I’m sure she would have enjoyed it if _____.
A. she’s gone B. she’ll go
C. she’d gone D. she’d go
答案：
1—5 BBDAD 6—10 DDCAD 11—15 CDCAA 16—20 ACAAD
21—25 DBCCC 26—30 DCCCD 31—35 DDCCB 36—39 DCAC
解析：
1.wish后面用虛擬語氣，表示與過去事實(shí)相反用過去完成時(shí)。
2.條件句表示與過去事實(shí)相反，主句用過去將來完成時(shí)，從句用過去完成時(shí)。
3.as if后面如果表示真實(shí)情況就不用虛擬。
4.It is important that是主語從句的虛擬語氣，從句用sb. should do的形式。
5.as if后面是真實(shí)情況，不虛擬。
6.lain是lie的過去分詞，表示“躺”。
7.could have done表示“本來可以”。
8.與將來相反的虛擬語氣，主句用過去將來時(shí)。
9.as if表示不可能發(fā)生的事情時(shí)用虛擬語氣。
10.but for表示“要不是……的話”，通常與虛擬語氣搭配使用。
11.in advance表示“事先”，表示與過去事實(shí)相反的虛擬語氣。
12.wish的賓語從句表示發(fā)生在將來的愿望用過去將來時(shí)。
13.but的并列句表示真實(shí)情況，不用虛擬語氣。
14.for fear that后面的狀語從句用sb. should do的形式。
15.表示與過去事實(shí)相反，主句用過去將來完成時(shí)，從句用過去完成時(shí)。
16.suggest后面的賓語從句用sb. should do的形式。
17.suggest后面的從句用sb. should do的形式，should可以省略。
18.表示與過去事實(shí)相反，從句用過去完成時(shí)。
19.would rather的賓語從句用sb. did的形式。
20.It is time后面的定語從句用sb. did的形式。
21.第一個(gè)had是過去完成時(shí)，第二個(gè)had表示“有”。
22.would have done是過去將來完成時(shí)，表示與過去相反的虛擬語氣。
23.這是虛擬語氣的倒裝形式，把if去掉，助動(dòng)詞提前。
24.suggest后面的從句用sb. should do的形式，should可以省略。
25.表示與過去事實(shí)相反，主句用過去將來完成時(shí)。
26.在虛擬語氣中，不管什么人稱，be動(dòng)詞都要用were的形式。
27.表示與過去事實(shí)相反，從句用過去完成時(shí)。
28.require后面的從句用sb. should do的形式，should可以省略。
29.It is strange that是主語從句的虛擬語氣，從句用sb. should do的形式。
30.had I known是與過去相反的虛擬語氣的倒裝形式。
31.as if表示不可能發(fā)生的事情時(shí)用虛擬語氣。
32.第一個(gè)had是過去完成時(shí)，第二個(gè)had表示“有”。
33.otherwise經(jīng)常可以搭配虛擬語氣，表示與過去事實(shí)相反。
34.當(dāng)insist表示“堅(jiān)持認(rèn)為”時(shí)不用虛擬形式。
35.wish后面用虛擬語氣，表示與過去事實(shí)相反用過去完成時(shí)。
36.but的并列句表示真實(shí)情況，不用虛擬語氣。
37.wish后面用虛擬語氣，表示與過去事實(shí)相反用過去完成時(shí)。
38.當(dāng)insist表示“堅(jiān)持要求”時(shí)從句用虛擬形式。
39.表示與過去事實(shí)相反，從句用過去完成時(shí)。
虛擬語氣專項(xiàng)練習(xí)題解析4
1. If my lawyer _______ here last Saturday， he _______ me from going.
A. had been； would have prevented
B. had been； would prevent
C. were； would prevent
D. were； would have prevented
解析：A．本題考查虛擬語氣。因?yàn)閺木浔硎九c過去事實(shí)相反的`假設(shè)，故從句謂語動(dòng)詞用過去完成時(shí)，而主句謂語動(dòng)詞用would have +過去分詞形式。
2. If I had worn my overcoat， I _______cold.
A. won’t have caught
B .couldn’t have caught
C. won’t catch
D. wouldn’t catch
解析：B．本題考查虛擬條件句中主句謂語動(dòng)詞的使用。因?yàn)閺木溆昧诉^去完成時(shí)，可知主句謂語動(dòng)詞用would / could have +過去分詞形式。根據(jù)句意，可知選B.
3.—If he ______ ， he ______ that food.
—Luckily he was sent to the hospital immediately.
A. was warned； would not take
B. had been warned； would not have taken
C. would be warned； had not taken
D. would have been warned； had not taken
解析：B. 根據(jù)答語，可知本題考查與過去事實(shí)相反的虛擬語氣。故從句謂語動(dòng)詞用過去完成時(shí)，而主句謂語動(dòng)詞用would have +過去分詞形式。
4. I didn’t see your sister at the meeting. If she _______， she would have met my brother.
A.has come
B. did come
C. came
D. had come
解析：D． 根據(jù)句意“在會(huì)上我沒有看到你的姐姐。如果她來的話，她就見到我哥哥了”可知，這是考查對(duì)過去事實(shí)的虛擬。主句用could have done，故從句謂語動(dòng)詞應(yīng)該用過去完成時(shí)。
5. “I still haven’t thanked Aunt Lucy for her present.” “It’s time you _____.”
A. do
B. did
C. had
D. would
解析：選B。It’s time you did 為 It’s time you thanked Aunt Lucy for her present 之略。按照英語語法，it’s time 后從句通常要用過去式。
6. If I hadn’t been lucky enough to meet you. I really _____ what I would have done.
A. don’t know
B. hadn’t known
C. wasn’t knowing
D. wouldn’t know
解析：選A。雖然前有虛擬條件句, 后有使用了虛擬語氣的賓語，但 I don’t know 卻宜用一般現(xiàn)在時(shí)，因?yàn)?I don’t know 表述的是現(xiàn)在的真實(shí)情況，句意為“我要不是有幸遇到你，我真不知(指現(xiàn)在不知)我會(huì)做出什么蠢事來”。
7. “I’ve told everyone about it.” “Oh, I’d rather you _____.”
A. don’t
B. hadn’t
C. couldn’t
D. wouldn’t
解析：選B。I’d rather 后接從句時(shí)，從句謂語的時(shí)態(tài)規(guī)律是：用過去式表示現(xiàn)在或?qū)�，用過去完成式表示過去。
8. It has been raining for a day, but even though it hadn’t rained, we _____ there by tomorrow.
A. can’t get
B. won’t get
C. hadn’t got
D. wouldn’t get
解析：選A。we can’t get there by tomorrow 為客觀事實(shí)，故宜用陳述語氣。
9. “Do you know his address?” “No, I also wish I _____ where he _____.”
A. knew, live
B. knew, lives
C. know, lives
D. know, lived
解析：選B。第一空填 knew，因?yàn)?I wish 后的賓語從句要用虛擬語氣(即用過去式表示現(xiàn)在的想法);第二空要填lives，即用陳述語氣，因?yàn)?where he lives 是一個(gè)客觀事實(shí)，而不是 I wish 的內(nèi)容。
10. “Isn’t 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
解析：選C。It’s time… / It’s high time… / It’s about time… 等后接從句時(shí)，從句謂語通常用過去式。
11. 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. wouldn’t have fallen
B. had not fallen
C. should fall
D. were to fall
解析：選 B。此題涉及錯(cuò)綜時(shí)間虛擬條件句，主句與現(xiàn)在事實(shí)相反，條件句與過去事實(shí)相反。句意為：要不是在七歲時(shí)就迷上了 Melinda Cox 圖書館，我真不能想像我如今會(huì)在做什么。
12. 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
解析：選 D。這是otherwise 引出的含蓄虛擬語氣，再根據(jù)前面的 hesitated 可進(jìn)一步知道這是與過去事實(shí)相反的虛擬語氣，由此可推知答案選 D。
13. 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
解析：選 C。if only 意為“要是……就好了”，其后的句子謂語要用虛擬語氣，同時(shí)根據(jù) as the doctor instructed 中的過去時(shí)態(tài)可知從句是與過去事實(shí)相反，故選 C。
14. Without the air to hold some of the sun’s 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
解析：選 A。without 引出的介詞短語為一個(gè)與現(xiàn)在事實(shí)相反的含蓄條件句。
15. Yesterday, Jane walked away from the discussion. Otherwise, she ____ something she would regret later.
A. had said
B. said
C. might say
D. might have said
解析：選 D。otherwise 在此相當(dāng)于 if she had not walked away from the discussion，即暗示一個(gè)與過去事實(shí)相反的虛擬條件句。
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