情态动词
单项选择
1.Remember to bring more clothes because the winter in Shanghai ________ be very cold sometimes.
A.shall B.can C.would D.need
2.The new test should ____ doctors to detect the disease early.
A.able B.enable C.disable D.unable
3.Some students ________ in the midterm exam for the results didn’t reflect their real abilities, while others ________ better but they didn’t review the lessons well.
A.should cheat; would have performed B.should have cheated; would perform
C.might cheat; would perform D.might have cheated; would have performed
4.Only when you have contracted the virus ________ the correctness of advice that, unless you are strong enough to get over it of yourself, you ________ be vaccinated.
A.you will recognize; need to B.will you recognize; are to
C.you will recognize; must D.will you recognize; should
5.—It’s 7:30 and he hasn’t taken the nucleic acid test yet!
—Well, he ________.
A.ought to B.oughtn’t to have C.ought to have D.ought to have to
6.- Will my car be ready by the end of this week
- It ________ be, sir. I will give you a call if it is ready.
A.should B.shall C.would D.must
7.—Can I please have a little more time
—No, you_________. The test time is up.
A.can’t B.couldn’t C.mustn’t D.needn’t
8.— You burned your face and arms.
—Yes, I in the shade like all the other tourists at noon.
A.should be B.must have been C.must be D.should have been
9.When reading The Road Not Taken, one cannot help but ________ in one’s mind images of a peaceful wood deep within the countryside.
A.seeing B.to see C.see D.seen
10.I heard that your team won the football match yesterday afternoon. You ______ have performed quite well.
A.can B.must C.should D.need
11.The magazine ____ Lucy’s. We can see her name on the cover.
A.mustn’t be B.can’t be C.must be D.needn’t be
12.—She is supposed to come at night.
Why hasn’t she turned up yet
—_________
A.What do you think may have happened to her
B.What do you think is to happen to her
C.Do you think what have happened to her
D.Do you think what may happen to her
13.People _________ talk on a mobile phone while they are driving
A.can’t B.mustn’t C.can D.must
14.The red book must ___ your teacher. Look! His name is on it.
A.be belonged to B.belong C.belongs to D.belong to
15.— ____________you give me a hand I can’t move the box myself.
—No problem.
A.Must B.Should C.Could
16.— ________ we take the subway to the airport now
—I think so. The traffic ________ be very heavy at this time of the day.
A.Must, must B.can, can’t C.can’t, may
17.I’m feeling much better now so you ________ call the doctor.
A.couldn’t B.wouldn’t C.can’t D.needn’t
18.—Mom,_____I hang out with Susan now
—No,you_____.It’s dangerous for two girls to be outside at night.
A.could;can’t B.could;needn’t C.should;can’t D.must;couldn’t
19.According to the new traffic rules, people ________ wear a helmet when riding an e-bike.
A.might B.may C.can D.must
20.There is always a lot of traffic at this time of day. So I ________ arrive a bit late.
A.might B.can C.needn’t D.mustn’t
21.The newly-released device is not well-received as expected. It ________ more practical and affordable.
A.must have been B.might have been C.should have been D.should be
22.Whether you stay in the office or go home, you ______ leak the information.
A.shouldn’t B.mustn’t C.won’t D.needn’t
23.I ______ have cooked so much food. Nobody was hungry and there were a lot of leftovers.
A.needn’t B.wouldn’t C.mustn’t D.couldn’t
24.—I can’t get through to the general manager’s office anyhow.
—The line is busy. Someone________ the telephone.
A.can use B.can have used C.must have used D.must be using
25.I can’t find my purse. I ________ it in the supermarket yesterday, but I’m not sure.
A.should leave B.could have left C.might leave D.must have left
26.Mr. Smith ______ to Beijing, for I saw him in the library just now.
A.needn’t have gone B.mustn’t have gone
C.can’t have gone D.shouldn’t have gone
27.It ________ have rained last night, for the ground is wet.
A.must B.need C.could D.might
28.— Will you be free this weekend
— I’m not sure, but I ________ go to an art exhibition with my parents.
A.will B.should C.must D.may
29.We ______ eat too much roast food as it may do harm to our health.
A.wouldn’t B.needn’t C.had better not D.might not
30.—Must I go to the law university to be a lawyer like you, Dad
—No, you ________, son. You’re free to make your own decision.
A.can’t B.mustn’t C.shouldn’t D.needn’t
31.When I was little, my mother used to sit by my bed,________ me stories and sing songs for me till I fell asleep.
A.having told B.tell C.telling D.told
32.一Excuse me, can I use your computer to type a report
一You________ have my computer if you take good care of it.
A.shall B.might C.should D.need
33.Because Lincoln had so little schooling, journalists thought he ________ not have been very smart.
A.must B.shall C.could D.would
34.Many adults report that even when out in nature, they ________ not take the time to admire a spectacular mountain ________ pulling out their smartphone to take a picture.
A.may … before B.may … after
C.should … before D.should … after
35.Technology is supposed to make our lives easier, but it ________ also be frustrating at times.
A.must B.can C.will D.should
36.Her round figure, seen in the Tang Dynasty, ________ the admirable image.
A.would have been considered B.would have considered
C.had considered D.must have been considered
37.In the new TOFEL test, there are questions ________ test takers ________ read, listen and then speak into a microphone.
A.which … must B.which … need
C.where … must ` D.where … need
38.This ___________an improvement, but “breakthrough” was an overstatement.
A.can have been B.should have been
C.may have been D.need have been
39.Mr. Baker, some students want to see you. ________ they come in right now
A.May B.Should C.Shall D.Will
40.—I wonder why Robert hasn’t shown up at the interview yet. It’s a pity if he missed.
—I’m not sure, but he ________ in a traffic jam riding here.
A.could be stuck B.should be stuck C.must have been stuck D.might have been stuck
41.— I think you ________ there in person; a phone call would have been fine.
— It is a good chance to know more of you from your parents.
A.couldn’t have been B.needn’t have been C.wouldn’t be D.shouldn’t be
42.—John's gift He ______a better one for me.
—He must be very happy to know it.
A.should have chosen B.may have chosen
C.couldn't have chosen D.needn't have chosen
43.According to the rules of the shopping mall, you ______ keep your pet out of the gate.
A.would B.should C.may D.can
44.You ________ take photos of people in Egypt without first asking for permission.
A.mustn’t B.needn’t C.don’t have to D.wouldn’t
45.The screw was so tight that it ________ not move.
A.could B.should C.would D.might
46.I wonder why we________ eat out all the time when we can cook our own meals at home.
A.may B.would C.should D.must
47.You ________allow a golden opportunity to slip through your fingers or you will regret it later.
A.may not B.wouldn’t C.needn’t D.mustn’t
48.—Must I finish the paper today
— No, you _________.
A.must B.need C.couldn’t D.don’t have to
49.We ________ be seen by AI as a small inconvenience that is in the way of the solution to a bigger problem.
A.could B.should C.need D.dare
50.He speaks English with a strong American accent, so he ______ brought up in Britain.
A.couldn’t be B.shouldn’t be C.can’t have been D.needn’t have been
51.Dutch runner Sifan Hassan’s bronze medal in the women’s 1,500-meter final came after a brutal fall during the preliminary round (分组预赛), which __________her from qualifying.
A.could have stopped B.could stop
C.would stop D.should have stopped
52.You _________take photos of people without asking for permission. It is impolite.
A.mustn’t B.needn’t C.aren’t D.wouldn’t
53.—Why are your eyes so red You______ well last night.
—Yeah, I stayed up late struggling with the homework.
A.mustn’t have slept B.wouldn’t have slept
C.couldn’t have slept D.needn’t have slept
54.There was no sign of a break-in, so the thieves ________ someone on the inside helping them.
A.might have B.should have had C.could have D.must have had
55.The letters were also beautifully illustrated—each ______ its true author, Tolkien, a long time to complete.
A.must have taken B.need have taken
C.could have taken D.might have taken
56.—Whose T-shirt is this
—It ________ be Mike’s. It’s ________ small for him.
A.can’t, much too B.needn’t, too many
C.mustn’t; too much D.won’t, too much
57.It’s red light now. We _________stop and wait.
A.can B.must C.should D.might
58.Dieting and exercising can bring your weight under control but you must _____ your plan with perseverance.
A.stick to B.rise to C.respond to D.relate to
59.Mary didn’t know who could _____ the care of her elderly parents while she was abroad for further study.
A.assess B.assist C.assume D.access
60.After all, labor can also ________ my physical and mental health.
A.benefit to B.be of benefit to C.benefit from D.be beneficial for
参考答案:
1.B
【详解】考查情态动词。句意:记得多带些衣服,因为上海的冬天有时会很冷。根据下文“be very cold sometimes”可知,此处表示上海冬天可能很冷。表示“可能性”使用情态动词can。故选B。
2.B
【详解】考查动词。句意:这种新的检测方法将使医生能够及早发现这种疾病。A. able能够的(形容词);B. enable使能够(动词);C. disable使……失去能力(动词);D. unable不能的(形容词)。情态动词should后接动词原形。enable sb. to do sth.使某人能够做某事。故选B。
3.D
【详解】考查情态动词。句意:一些学生可能会在期中考试中作弊,因为结果没有反映出他们的真实能力,而另一些学生本可以表现得更好,但他们没有好好复习功课。对过去事情的推测,用情态动词+have done。should have done过去本应该做某事(而实际上未做);might have done也许已经做了某事;would have done本可以做某事(却没有)。根据“for the results didn’t reflect their real abilities”可知,一些学生可能会在期中考试中作弊;根据“but they didn’t review the lessons well.”可知,这些学生本可以表现得更好。故选D。
4.D
【详解】考查倒装句和情态动词。句意:只有当你感染了病毒,你才会认识到建议的正确性,除非你足够强壮来克服它,你应该接种疫苗。本处only在句首,后面跟了做状语的when,主句用部分倒装结构,即将will 提至主语 you 之前,故空处一用will you recognize;分析可知,本句表示“除非你足够强壮来克服它,否则你应该接种疫苗”,故空处二表示“应该”,用should符合题意;故选D项。
5.C
【详解】考查情态动词+have done。句意:——已经7:30了,他还没有去做核酸!——是的,他本应该去做的。根据句意可知,此处意为“本应该做,却没做……”,应用情态动词+have done,表达为ought to have done,故此处答语应为“Well, he ought to have (taken it)”,故选C。
6.A
【详解】考查情态动词表推测的用法。句意:——我的车这周末能准备好吗?——应该能,先生,如果准备好了我会给你打电话的。A. should应该会;B. shall将会;C. would将;D. must一定。根据句意,本处表示肯定的推测,根据“I will give you a call if it is ready.”可知,此处指非常有可能的事,用should符合语境。故选A项。
7.C
【详解】考查情态动词词义辨析。句意:——能再给我一点时间吗?——不,你不可以。考试时间到了。A. can’t不能;B. couldn’t不能;C. mustn’t不准,禁止;D. needn’t不需要。由“The test time is up”可知,此处表示“禁止”,因此空格处是mustn’t。故选C。
8.D
【详解】考查“情态动词+have done”的用法。句意:——你的脸和胳膊都晒伤了。——是的,我应该像其他游客一样在中午的时候待在阴凉处。分析句子且根据句意可知,空处是在表示“过去本该做某事(而实际上未做)”,站在现在的角度上评说过去的事情,所以应填should have done,表示“本应该做(而实际未做)”。故选D项。
9.C
【详解】考查动词。句意:当阅读《未走的路》时,人们不禁会在脑海中看到乡村深处一片宁静的树林。分析句子结构可知,此处是固定搭配:can’t help but do sth.意为“忍不住要做”,空处需填动词原形。故选C项。
10.B
【详解】考查情态动词。句意:听说你们队赢得了昨天下午的足球比赛。你肯定表现很不错。根据I heard that your team won the football match yesterday afternoon可知,球队已经获胜,由此可推断球队表现好的可能性是很大的。must have done表示对过去事实肯定的推测。故选B项。
11.C
【详解】考查情态动词。句意:这本杂志一定是露西的。我们可以在封面上看到她的名字。mustn’t禁止,不允许;can’t 不可能;must一定、必须;needn’t 不必。根据“We can see her name on the cover.”可知,这本杂志属于露西,要用must be 示肯定推测。故选C。
12.A
【详解】考查疑问句语序和情态动词的推测用法。句意:——她应该晚上来。她怎么还没来?——你觉得她发生了什么事?do you think为插入语,特殊疑问句语序为“特殊疑问词+一般疑问句”,所以排除选项C和选项D。根据“Why hasn’t she turned up yet”可知,此处是对过去发生的事情的推测,所以应用may have done。故选A。
13.B
【详解】考查情态动词词义辨析。句意:人们不能在开车时打电话。A. can’t不能(表能力);B. mustn’t不能(表禁止);C. can能够;D. must必须。根据“talk on a mobile phone while they are driving”和常识可知,人们在开车的时候是禁止打电话的,故选B。
14.D
【详解】考查固定短语。句意:这本红皮书一定是你老师的。看!他的名字在上面。根据句意可知,句中涉及固定短语“belong to”,意为“属于”,没有被动语态,“sth. belong to sb.”意为“某物属于某人”,“must”为情态动词,后接动词原形,故空格处应填“belong to”。故选D项。
15.C
【详解】考查情态动词。句意:——你能帮我一把吗?我自己搬不动这个箱子。——没问题。A. Must必须;B. Should应该;C. Could (礼貌地请求别人做事)能。分析句子可知,句中表示礼貌地请求别人帮助自己,应用情态动词“could”,意为“(礼貌地请求别人做事)能”,符合语境,句首单词首字母大写。故选C项。
16.A
【详解】考查情态动词。句意:——我们现在必须坐地铁去机场吗?——我想是的。每天这个时候交通一定很拥挤。A. Must必须,must一定;B. can可以, can’t不可能;C. can’t不可能, may可能。由语意可知,我认为我们要乘坐地铁去机场,因此那时交通一定是很拥挤的,乘地铁是最佳方式,所以上句问的是:我们必须坐地铁去机场吗?情态动词must语气最强,意为“必须,一定”,表示很有必要做某事或是某事最有可能发生,也可以表示推测。故选A项。
17.D
【详解】考查情态动词。句意:我现在感觉好多了,所以你不必叫医生。A. couldn’t不可能;B. wouldn’t不会;C. can’t不能;D. needn’t不必。根据句中“I’m feeling much better now”可知,我现在感觉好多了,由此可知,不必叫医生了。故选D项。
18.A
【详解】考查情态动词。句意:——妈妈,我现在能和苏珊出去玩吗?——不,你不能。两个女孩晚上在外面是危险的。情态动词could用于有礼貌地提出请求,常用于疑问句,代替can,但是其语气要比can更加委婉,有礼貌,其否定回答不用 could ,习惯上否定回答用 can't;should表示“应该”;must表示“必须”;can’t表示“不能;不可以”;needn’t表示“不需要”;couldn't表示“不能够”。根据句意,空一表示提出请求,空二表示不允许,否定回答,could和can’t符合句意。故选A。
19.D
【详解】考查情态动词辨析。句意:根据新的交通规则,人们骑电动自行车时必须戴头盔。A. might可能,可以;B. may可能;C. can能够;D. must必须。根据后文“According to the new traffic rules”可知是新交规规定的,必须戴头盔。故选D。
20.A
【详解】考查情态动词辨析。句意:每天这个时候交通总是很拥挤。所以我可能会晚一点到。A. might可能;B. can能;C. needn’t不需要;D. mustn’t禁止。此处指不确定的推测,might符合语境。故选A。
21.C
【详解】考查情态动词用法。句意:新发布的设备并没有像预期的那样受到好评。它本应该更实用、更实惠。A. must have been一定已经;B. might have been本可以是,可能已经;C. should have been本应该是;D. should be应该是。根据句意,此处考查should have done的结构,表与预期相反,意为“本来应该做某事而实际上没有做”,新发布的设备本应该再实用点,再便宜点的,但是实际上却没有,所以也就得不到好评了。故选C项。
22.B
【详解】考查情态动词。句意:不管你是留在办公室还是回家,你都不能泄露消息。A. shouldn’t不应该;B. mustn’t不得;不能;不许;C. won’t将不;D. needn’t不必。根据“Whether you stay in the office or go home,”可知,不管在办公室还是回家都不允许泄露消息。故选B。
23.A
【详解】考查情态动词的虚拟语气。句意:我本不必做那么多食物的。没有人饿,还有很多剩菜。need have done意为“本必要做某事”,needn't have done意为“本不必要做某事”,根据后文 Nobody was hungry and there were a lot of leftovers可知,没有必要做这么多食物。故选A。
24.D
【详解】考查情态动词。句意:——我怎么也打不通总经理办公室的电话。——占线。一定有人在用电话。根据“The line is busy”可知,有人一定正在用电话,“一定正在做某事”是must be doing,故选D。
25.B
【详解】考查情态动词。句意:我不能找到我的钱包了,昨天我有可能把它落到超市了,但我不确定。根据句中时间状语yesterday可知,是对过去事情的推测,故用情态动词+ have done,再根据后句but I’m not sure.可知,此推测为不能肯定的推测,故用情态动词could,表示“可能”。故选B。
26.C
【详解】考查情态动词用法辨析。句意:史密斯线不可能去了北京,因为我刚刚在图书馆看见他了。needn’t have done一般用于否定句或疑问句中,表示“过去没有必要做某事,但实际上却做了”;mustn’t have done形式不存在,must表推测时不用于否定句;can’t have done表示对过去事实的否定推测,意为“不可能做过某事”;shouldn’t have done表示本来不应该做某事,而实际上做了,含有指责对方或自责之意。结合句意,作者在图书馆看到史密斯先生,他“不可能已经去北京了”。故选C项。
27.A
【详解】考查情态动词辨析。句意:昨晚一定下雨了,因为地面是湿的。A.must 一定;B.need需要; C.could 可能;D.might或许。根据后文“have rained last night”可知,这是对过去情况的推测。must have done对过去发生的事情进行较有把握的推测;need表推测,一般用于否定形式;could have done意为“本来能够做某事而没有做”;might have done意为“可能发生了某事”。再结合后文“ for the ground is wet”可知,地面是湿的,一定是下雨了。故选A。
28.D
【详解】考查情态动词辨析。句意:——这个周末你有空吗?——我不确定,但我可能会和父母一起去看艺术展。A. will将;B. should应该;C. must必须;D. may可能。结合语意,后者说自己不确定,所以空处应用may表示可能性不大的推测。故选D项。
29.C
【详解】考查情态动词词义辨析。句意:我们最好不要吃太多的烧烤食品,因为它可能对我们的健康有害。A. wouldn’t不会,不肯;B. needn’t不需要,没必要;C. had better not最好不要;D. might not可能不。根据后半句“as it may do harm to our health”可知,太多烧烤食品不利健康,所以建议“最好不要”吃太多。had better not符合语境。故选C项。
30.D
【详解】考查情态动词词义辨析。句意:——爸爸,我一定要像你一样上法律大学当律师吗?——不,你不需要,孩子。你可以自己做决定。A. can’t不能;B. mustn’t不允许(表禁止);C. shouldn’t不应该;D. needn’t不需要。“Must I”的否定回答是“No, you needn’t”,意为“不需要”,故选D。
31.B
【详解】考查非谓语动词。句意:当我还小的时候,妈妈常常坐在我的床边,给我讲故事,唱歌,直到我睡着。情态used to后跟动词原形,此处应为动词原形tell和前文sit及后文sing并列,作谓语动词。故选B项。
32.A
【详解】考查情态动词辨析。句意:——不好意思,我能不能用你的电脑打一份报告?——如果你好好使用我的电脑,我就把它送给你。A. shall可以(用于第二、三人称时,表示说话人给对方的命令、警告、允诺或威胁);B. might可能;C. should应该;D. need需要。由“if you take good care of it”可知,句子表示“如果你好好使用我的电脑,我就把它送给你”,空格处意为“可以”,表示允诺,故选A。
33.C
【详解】考查情态动词。句意:因为林肯没有受过多少教育,记者们认为他不可能很聪明。A. must必须,一定;B. shall将,应该,可能;C. could可能,(can的过去时形式);D. would将会,过去常常,(will的过去时形式) 。结合句意可知,此处是对过去事实的否定推测,应用can/could not have done。故选C。
34.A
【详解】考查情态动词和介词。句意:许多成年人表示,即使在大自然中,他们在拿出智能手机拍照之前,可能也不会花时间欣赏壮观的山峰。情态动词may意为“也许,可能”; should意为“应该”。根据句意,此处指成年人的习惯做法,但是不绝对,所以用“可能”符合句意;第二空填考查介词。not…before…相当于not…until…或after…,意为“在拿出智能手机拍照之前,不会花时间欣赏壮观的山峰”。故选A。
35.B
【详解】考查情态动词。句意:科技应该让我们的生活更轻松,但它有时也会让人沮丧。根据句意可知,此处表示情态动词的推测功能,can表示理论可能、有时可能。故选B。
36.D
【详解】考查情态动词。句意:在唐代,她那圆润的身材一定被认为是令人倾慕的形象。根据句意及时间状语“in the Tang Dynasty”可知,此处表示对过去事情的推测。因主语her round figure与动词consider是被动关系,因此应使用被动语态,“must have done”表示对过去事实的肯定推测,意为“过去一定……”。故选D。
37.C
【详解】考查定语从句和情态动词。句意:在新的托福考试中,有一些问题,考生必须阅读、倾听,然后对着麦克风说话。根据句型分析可知,第一空考查定语从句,先行词为questions,在从句中作状语,所以应选where;第二空考查情态动词,need作为情态动词一般只用于否定和疑问句中,肯定句中,need为实义动词,所以第二空应选must。故选C项。
38.C
【详解】考查情态动词+have done。句意:这或许是一种进步,但“突破”一词言过其实。A. can have been可能是;B. should have been应该是;C. may have been或许是;D. need have been需要是。根据空后“but “breakthrough” was an overstatement.”可知,这或许是一种进步,但“突破”一词言过其实。may have been符合语境。故选C。
39.C
【详解】考查情态动词辨析。句意:贝克先生,有些学生想见你。他们是在这里等还是在外面等?A. May可以;B. Should应该;C. Shall应该;D. Will将。Shall用于第一、第三人称疑问句中,表示说话人征求对方的意见或向对方请示。故选C。
40.D
【详解】考查情态动词。句意:——我想知道为什么罗伯特还没有出现在采访中。 如果他错过了,那就太可惜了。 ——我不确定,但他可能是在这里骑车时被堵车了。A. could be stuck可能堵车了;B. should be stuck应该堵车了;C. must have been stuck一定是堵车了;D. might have been stuck可能堵车了。此处表示对于过去已经发生的事情的推测应该用情态动词的完成式,且根据句意可知,应用被动语态,故选D项。
41.B
【详解】考查情态动词对过去事实的推测。句意:——我认为你本不需要亲自到场,打个电话就可以了。——这是一个很好的机会,可以从你父母那里了解你更多的情况。A. couldn’t have been不可能; B. needn’t have been 本不必;C. wouldn’t be 将不;D. shouldn’t be不应该。结合句中“a phone call would have been fine.”可知,本句表示对过去发生事实的推测,此处指一个电话就可以解决的事情,不需要亲自来,然而你却来了。所以此处应用“本不必来的”,故选B。
42.C
【详解】考查情态动词的否定形式与形容词比较级连用,表示最高级。句意:——约翰(给)的礼物吗?他给我选了一个最好的礼物。——他一定很高兴知道这件事。A.should have chosen本应该选择(却没有);B.may have chosen可能选择了;C.couldn’t have chosen本不能选择(却选了);D.needn’t have chosen本不需要选择(却选了)。此处考查情态动词could的否定形式,与better连用,表再好不过了,表示最高级,此处指“约翰为我选了一个再好不过的礼物”。故选C项。
43.B
【详解】考查情态动词。句意:根据购物中心的规定,你应该把宠物关在门外。A. would将会;B. should应该;C. may也许;D. can可能。根据句意,此处表达“应该”,should符合题意。故选B项。
44.A
【详解】考查情态动词。句意:未经许可,你不得在埃及为人们拍照。A. mustn’t不准,禁止;B. needn’t不必;C. don’t have to不必;D. wouldn’t不会。根据“without first asking for permission.”可知,此处是指未经许可禁止给当地人拍照。故选A。
45.C
【详解】考查情态动词。句意:螺丝钉太紧拧不开。A. could可能;B. 应该;C. would表示物体固有的性质和倾向;D. might也许。结合句意,此处表示螺丝钉太紧了,以至于它拧不开,would表示物体的性质,符合题意。故选C项。
46.D
【详解】考查情态动词。句意:既然我们很容易的在家烧饭,为什么偏要外去吃呢?A.may 可能;B.would 将要;C.should 应该;D.must 偏偏,。分析句子可知,既然我们很容易的在家烧饭,为什么偏要外去吃呢,故选D。
47.D
【详解】考查情态动词辨析。句意:你千万不能让绝好的机会从指缝间溜走,否则你以后会后悔的。A. may not也许不;B. wouldn’t不会;C. needn’t不必;D. mustn’t一定不要。根据“or you will regret it later.”可知,一定不要将机会溜走,否则会后悔的,应用情态动词mustn’t。故选D。
48.D
【详解】考查情态动词。句意:——我今天必须得完成论文吗?——不,你不必。A. must必须;B. need需要;C. couldn’t不能;D. don’t have to不必。根据回答No可知,此处表示“不必”,故用don’t have to或needn’t,故选D。
49.A
【详解】考查情态动词。句意:我们可能被人工智能视为解决更大问题道路上的一个小麻烦。A.could可能;B. should应该;C. need需要;D. dare敢。根据句意可知,我们可能被人工智能视为解决更大问题道路上的一个小麻烦,这里表示可能性,对过去、现在、将来某种可能性的推测,所以用could。故选A。
50.C
【详解】考查情态动词。句意:他说英语带有很重的美国口音,所以他不可能是在英国长大的。分析句意可知,此处用情态动词+have done形式表示对过去情况的推测,所以排除A项和B项;在根据“with a strong American accent(带有很重的美国口音)”可知,他不可能是在英国长大的,所以此处用情态动词 can’t 表示“不可能”符合语境。故选C项。
51.D
【详解】考查情态动词用法。句意:荷兰选手Sifan Hassan在女子1500米决赛中获得铜牌,她在预赛中不幸摔倒,本应因此失去晋级资格。根据上文“a brutal fall during the preliminary round ”可知,此处是指在预赛中的摔倒本应让Sifan Hassan失去晋级赛资格,但她非但没有失去资格,反而在决赛中获得铜牌。表达“本应该做某事(而未做)”用should have done。故选D。
【点睛】
52.A
【详解】考查情态动词。句意:在没有征求允许前你不得给别人照相。那是不礼貌的。A. mustn’t must not的缩写,不得;B. needn’t need not的缩写,不必;C. aren’t are not的缩写,不是;D. wouldn’t would not的缩写,将不会。根据句子结构和意思可知,这里考查情态动词,需要“不得,不允许,不可以”的意思,mustn’t表禁止。故选A。
53.C
【详解】考查情态动词+完成式的用法。句意:——你的眼睛为什么这么红?你昨晚肯定没睡好。——是的,我熬夜到很晚写家庭作业。mustn’t表示“禁止”,表示推测时常用肯定结构must have done“一定做了某事”;wouldn’t have done表示本不会做某事;couldn’t have done表示过去不可能做了某事,表示对过去的推测;needn’t have done表示本不必要做某事。结合“Why are your eyes so red ”可知,空处是对过去的推测,表示“昨晚不可能睡得好”,用couldn’t have done。故选C项。
54.D
【详解】考查情态动词用法。句意:没有闯入的迹象,所以盗贼们肯定有内应帮助他们。根据“There was no sign of a break-in”可知,此处是指对过去事实的推测,排除A项和C项;should have done表示“本应该做确没做某事”,此处表示对过去事实的肯定推测,需用must have done这种形式。故选D。
55.A
【详解】考查情态动词。句意:这些信件也有精美的插图——每一封都要花费真正的作者托尔金很长时间才能完成。must have done肯定做过某事,表示对过去情况肯定地推测;need have done sth. 本需要做某事;could have done sth.可能做了某事,本可能做某事;might have done sth.可能做了某事。根据前面的“beautifully illustrated”可推知,这些信的插图非常精美,那么精美的插图“肯定”要花的很长时间来完成。因此,该空表示非常有根据的推测。应该用情态动词must。故选A。
56.A
【详解】考查情态动词以及固定短语辨析。句意:——这是谁的T恤?——不可能是迈克的。这对他来说太小了。A. can’t, much too不可能,太,修饰形容词;B. needn’t, too many不需要,太多,修饰可数名词复数;C. mustn’t; too much禁止,太多,修饰不可数名词;D. won’t, too much不会,太多,修饰不可数名词。第一空表示“不可能是迈克的”应用can’t;第二空修饰后文形容词small应用much too。故选A。
57.B
【详解】考查情态动词。句意:现在是红灯,我们必须停下来等着。A.can 可以;B.must必须; C.should应该;D. might可以。根据句意可知,看到红灯后停下是我们有义务和有必要做的事情,所以must更符合语境。故选B项。
58.A
【详解】考查动词短语辨析。句意:节食和锻炼可以控制你的体重,但你必须坚持你的计划。A. stick to坚持;B. rise to上升到;C. respond to响应;D. relate to涉及,有关。由语意可知,“坚持控制体重的计划”,动词应用stick to,此处作谓语,跟在must之后应用动词原形。故选A项。
59.C
【详解】考查动词词义辨析。句意:玛丽不知道在国外深造期间谁能照顾她年迈的父母。A. assess评价;B. assist帮助;C. assume假设,承担;D. access接近,进入,获取。由语意可知,Mary出国深造,就无法承担照顾年迈的父母的责任了,assume符合语境,在宾语从句中作谓语,情态动词后用动词原形。故选C项。
60.B
【详解】考查固定短语。句意:毕竟,劳动也可以有利于我的身心健康。由“my physical and mental health”可知,句子表示“劳动也可以有利于我的身心健康”,空格处意为“有利于”,表达为benefit sth.,be of benefit to或be beneficial to,can是情态动词,其后用动词原形,故选B。