英语情态动词专项练习题含答案解析

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【英语】情态动词练习题含答案及解析

【英语】情态动词练习题含答案及解析一、单项选择情态动词1．—Can I pay the bill by check?—Sorry，sir．But it is the management rules of our hotel that payment _____ be made in cash．A．shall B．needC．will D．can【答案】A【解析】【详解】考察情态动词用法。

句意：——我能用支票付账吗?——对不起,先生。

但这是我们酒店的管理规定,支付要用现金。

shall可以表示命令，警告，强制，或者指规则和法律要求做的事情。

本题正是考察了shall表示按照规则和法律要求做的事情。

故A正确。

2．You _____ be right but I’m going back to check anyway.A．should B．must C．need D．might【答案】D【解析】【详解】考查情态动词。

句意：你或许是对的，但我还是要回去核对一下。

A. should应该；B. must 一定，必须；C. need需要；D. might或许。

本题主要考查情态动词表示推测的用法，由I’m going back to check anyway可知，我对此不确定。

由此可知，D项符合题意。

故选D项。

【点睛】can / could用于表推测的用法(1) 从使用句型上看，can 通常只用于否定句或疑问句，一般不用于肯定句，而could 可用于肯定句、否定句和疑问句。

两者没有时间上的差别，只是could 比 can 更委婉，更不确定。

(2) 从时间关系看，对现在或将来情况作推测，后接动词原形；对正在进行的情况作推测，后接 be doing 结构；对过去情况作推测，后接动词完成式。

二、 may / might用于表推测的用法表示推测，两者都可用，只是 might 比 may 语气更不确定，表示的可能性更小。

初中英语情态动词专项练习(附答案解析)

初中英语情态动词专项练习（附答案解析）一、单选题1．—Must I hand in the homework right now?—That's the rule.A．Yes, you can.B．No, you can't.C．Yes, you must.D．No, you mustn't.1．答案C解析句意：—我必须现在交作业吗？—这是规则。

是的,，你必须。

A. Yes,you can.“是的,你能”；B. No,you can't.“不,你不能”；C. Yes,you must.“是的,你必须”；D. No,you mustn't.“不,你禁止”。

回答must引导的一般疑问句，肯定用must，表示"必须"。

故选C。

点评考查情态动词引导的一般疑问句的回答，掌握情态动词must的用法。

2．You don't look well, you __________ see the doctor.A．ought to B．may C．can D．Might 2．答案A解析句意：你看起来不好，你应该去看看医生。

根据“看起来不好”可以得知是应该去。

A. ought to “应该”；B. may “可能”；C. can“ 会”；D. might“可能”。

故选A。

点评考查情态动词，区分ought to；may ；can和might的含义和应用。

3．What a beautiful day! You ______ take your umbrella at all.A．needn't B．mustn't C．can't D．may not 3．答案A解析句意：多好的天气啊!你根本不需要带伞。

A. needn't “不必”；B. mustn't“禁止”；C. can't“不可能”；D. may not“或许不会”。

中考(完整版)英语情态动词专项练习附解析含答案

中考(完整版)英语情态动词专项练习附解析含答案一、选择题1．It’s amazing that the pen ________turn voice into text with few mistakes.A．can B．must C．may D．need2．To my joy, we_________ go to the bank. Mary has lent us some money.A．shouldn’t B．needn’t C．couldn’t D．wouldn’t3．—Be careful! Fire ________ be dangerous sometimes.—OK. I will put it out right away.A．mustn’t B．should C．can D．needn’t4．—Will my car be ready by the end of the day?—It ________ be, sir. I’ll call if there’s any problem.A．must B．could C．shall D．should5．We sh ouldn’t throw any objects from the building. Even a small object ________ cause serious injuries or death, when dropped from a great height.A．must B．should C．may D．need6．Our Chemistry teacher always tells us we ________ be too hardworking before the exams. A．mustn’t B．shouldn’t C．needn’t D．can’t 7．—Dad, must we wait until the light becomes green?—Yes, I am afraid we ________. That’s the traffic rule.A．may B．can C．have to D．need8．— Is Lang Lang going to perform at Art Center this Friday?— Yes. It ________ be him. He has been here for three days.A．might B．must C．mustn’t D．may 9．Exercise is helpful but it ________ be regular (规律的) exercise.A．must B．may C．can D．need10．You ________ write the report again because spelling mistakes are not allowed at all. A．must B．can C．may D．could11．You'd better __________ hard from now on, __________ you will fail the exam. A．work; and B．working; or C．working; and D．work; or 12．—Hurry up, Jack! Let’s cross the road as fast as possible.—No, you ________. Don’t you see t he light is still red?A．couldn’t B．wouldn’t C．mustn’t D．needn’t 13．When you visit a museum, some instructions should ________ and we’d better not________ them.A．pay attention to; be against B．be paid attention; againstC．be paid attention to; against D．be paid attention to; be against14．It’s of great importance to protect the environment. Each of us ________ take an active part in it.A．can B．may C．would D．should15．If you buy your mum an iRobot floor cleaner, she ________ sweep the floor every day.A．c an’t B．mustn’t C．needn’t D．shouldn’t 16．—Have you decided to take up teaching as career after graduation?—I ________ go abroad for further education instead. But it depends.A．must B．should C．may D．shall17．The boy is very brave．I ________ he ________ the tall tree．A．dare say; dares to climbB．dare to say; dare climbingC．dare saying; dares climbD．dare to say; dares climbed18．---Will you be back early this evening?---Yes, but I ________ be a little late. Our boss sometimes has extra work for us.A．may B．must C．need D．will19．We’ve discussed every detail of this plan and have got everything ready. But still something __________ go wrong. We still have to be very careful.A．must B．should C．would D．may 20．—Amy, I hear you've got many foreign coins．_______ I have a look?—Of course, I'll fetch them for you．A．May B．MustC．Should D．Need21．My bike was broken yesterday，so I____walk home．A．might B．had to C．must D．could 22．—Would you please________in that way? That’s not safe!—Sorry. I won’t do it any more.A．not driving B．not to drive C．no driving D．not drive 23．Dr. Zhong Nanshan once said, "To prevent the spread of this disease, we________never be too careful."A．can B．may C．must D．should 24．Don’t cross the road until the traffic lights turn green. A car_______hit you.A．need B．may C．should D．must 25．—Where is Tom? I am considering ________ him about the result of the exam.—Oh. You ________. He has known it already.A．to tell; can't B．telling; needn't C．tell; mustn't D．told; shouldn't 26．You ________ pay too much attention to protecting yourself if you plan to go abroad. A．mustn’t B．can’t C．shouldn’t D．needn’t27．To avoid ________, we’d better ________ the parents’ meeting online.A．gather; hold B．gathering; hold C．gather; holding D．to gather; to hold 28．You ________ require others to do with the problem like you. Everyone has his own way. A．mustn’t B．needn’t C．may not D．shouldn’t 29．—How do you like my new dress?—Well, if I ________ say, it is not suitable for you.A．may B．must C．have to D．should 30．—Must the children leave at six tomorrow morning?—No, they _______. They can have more time to get ready for the trip.A．can’t B．needn’t C．mustn’t D．may not 31．—Mum, why do I have to wear a mask before entering the supermarket?—For your health and safety, you ________ be too careful.A．shouldn’t B．can’t C．mustn’t D．needn’t 32．According to the rule, used batteries ________ be dropped in the red bin for harmful wastes. A．may B．would C．should D．might33．You _________ smoke here! Look at the sign. It says "No smoking".A．needn't B．mustn't C．can D．may34．— Listen! Tom ________ be listening to the music while doing his homework.—Let’s go upstairs to remind him to turn it off.A．should B．could C．would D．must35．—Is that Mr Zhou?—It ________ be him. He has gone to Beijing.A．can B．may C．can’t D．shouldn’t 36．Never throw objects from the building. Even a small object ________ cause serious injuries, or death, when dropped from a great height.A．must B．should C．may D．need37．—The high school entrance examination is coming!— Yes, our teacher tells us we ________ be too careful while taking exams.A．mustn’t B．shouldn’t C．needn’t D．can’t38．— Is the boy over there Tom? He often wears a jacket like that.— It _______ be him. He is absent from school today.A．needn’t B．shou ldn’t C．mustn’t D．can’t39．—Is it really necessary for me to go shopping with a mask on?—I’m afraid you ________ in public. It is not only to protect yourself but also to protect others. A．must B．should C．can D．need40．Look at the floor, Tom! ________ you watch TV while having a meal?A．Should B．Could C．Must D．May41．Cars ________ give way to walkers on some roads in Binhai, or the drivers will be fined. A．may B．will C．can D．must 42．Sometimes smiles ________ be false, hiding other feelings like anger, fear or worry. A．should B．would C．must D．can43．—Could you tell me how to renew the library books?—With pleasure. You ________ come to our desk every time. It’s easier to renew them online. A．can’t B．mustn’t C．needn’t D．shouldn’t44．For the safety of the passengers, objects like guns ________ be carried on board.A．may not B．needn’t C．might not D．mustn’t 45．—The article says that a person’s animal sign decides his personality.—You ________ read it for fun, but don’t believe in that.A．can B．must C．shouldn’t D．needn’t 46．—How beautiful the winter jasmines (迎春花) are!—Yes. These golden-yellow flowers ________ be widely seen in my city in March.A．must B．can C．would D．should 47．—Mum, I bought some strawberries on my way home.—Oh, you’re so sweet. But the strawbe rries ________ be put into the fridge for freshness. A．must B．can C．may D．need48．— What do you think of the show yesterday?— Some of them were really good but others ________ be better.A．will B．must C．need D．can49．—May I have some wine to drink?—No, you ________. You have to drive home later.A．mustn’t B．needn’t C．can’t D．may not 50．—Will Jim come to Yangzhou for a holiday?—He ________come and it depends on how much homework he will have.A．may B．should C．must D．need【参考答案】***试卷处理标记，请不要删除一、选择题1．A解析：A【详解】句意：神奇的是，这支笔能把声音转换成文字，而且很少出错。

英语情态动词题20套(带答案)含解析

【答案】D
【解析】
【详解】
考查must have done结构。句意：——吉姆一定觉得我说的话很让人烦，尽管他什么也没说。——所以你是说你得向他道歉？根据“though he didn’t say anything.”可知此处表示对过去事情的肯定推测，用must have done表示“过去一定做了……”，故D项正确。
2、should作为情态动词,可以用在条件状语从句中,表示语气较强的假设,译作“万一”、“竟然”,这时也可将should置于从句之首,即将should放在主语前面,而省略从属连词if。例如：If you should fail to come, ask Mrs Chen to work in your place.（= Should you fail to come, ask Mrs Chen to work in your place.）
A．mayB．canC．mustD．ould
【答案】C
【解析】
【详解】
考查情态动词表猜测的用法。句意：一定是汤姆把车停在这儿的，因为他是唯一有车的人。A. may可能；B. can可能；C. must一定；D. should应该。由as he is the only one with a car.可知一定是他把车停在这里的，非常有把握的肯定推测，故选C。
2．One of our rules is that every student _______ wear school uniform while at school.
A．mightB．could
C．shallD．will
【答案】C
【解析】
【详解】
考查情态动词辨析。句意：我们其中一条规则要求每个学生在校期间都要穿校服。shall可以表示“命令，警告，强制要求；允诺；法律，规定要做……”，结合句意可知C正确。

（完整版）情态动词专项练习（含答案）

（完整版）情态动词专项练习（含答案）1. I promised to get there before 5 o’clock, but now the rain is pouring down. They ______ for me impatiently.A. may waitB. ought to waitC. could waitD. must be waiting2. He was very brave. Even though she’d hurt her leg, she ________ go back alone.A. couldB. mightC. have toD. was able to3. You ________ pay too much attention to your reading skill, as it is so important.A. cannotB. shouldC. mustD. needn’t4. I’ve tried several times, but the car just _______.A. doesn’t startB. wouldn’t startC. won’t startD. didn’t start5. Always the old lady ______ sit for hours doing nothing at all.A. was used toB. wouldC. used toD. should6. There used to be a small school,___________?A. was thereB. wasn’t itC. usedn’t thereD. usedn’t it7. Our house is on the top of the hill, so in summer the wind _____ be pretty cold.A. mustB. canC. ought toD. need8. Haven’t I told you that you __________ have the ans wer tomorrow morning?A. willB. shallC. shouldD. would9. I’m surprised that he _______ in the match.A. should failB. should have failedC. would have failedD. may have failed10. Better go to see my sick colleague right now, ________I?A. hadn’tB. didn’tC. don’tD. won’t11. Sir, you ______ be hunting deer here, for they are preserved by the government.A. oughtn’t toB. can’tC. won’tD. needn’t12. Sorry I’m late. I ______ have turned off the alarm clock and gone back to sleep again.A. mightB. shouldC. canD. will13. —There were already five people in the car, but they managed to take me as well.— It __________ a comfortable journey.A. can’tB. shouldn’t beC. must have beenD. couldn’t have been14. To be on the safe side, we should fill up the tank now, because we ______ run out of gas on the way.A. canB. wouldC. mightD. should15. ____ three people who travel together, there _____ be at least one who ____ be my teacher.A. Between; can; willB. In; should; couldC. Among; will; mayD. Of; must; can16. —Could you lend me that book you ______ me aboutwhen I telephoned you?—No, I am sorry, I can’t. I gave it to a friend.A. were tellingB. would tellC. had toldD. had been telling17. —We need a person badly to think up such an idea.—_______ the new comer have a try?A. ShallB. MayC. ShouldD. Need18. We ________ so tired. We’ve only been to a party.A. mustn’t have feltB. wouldn’t have feltC. shouldn’t have feltD. couldn’t have felt19. Professor Smith, many students want to see you. __________ they wait here or outside?A. DoB. ShallC. WillD. Would20. —How about paying a visit to Mr. Richardson, our former history teacher?—Good idea. I will e-mail him today so he _____know _________ to expect us.A. shall; whyB. may; whenC. would; whyD. will; how21. —I went to work on foot yesterday, though it _________ cats and dogs.—You __________ by bus. It was likely to get a cold.A. is raining; must have goneB. rained; would goC. was mining; should have goneD. have rained; could have gone22. You ______ pay too much attention to your reading skill, as it is so important.A. cannotB. shouldC. mustD. needn’t23. I told Sally to fix him up with this job, but perhaps I _________ it out for her.A. had to writeB. must have writtenC. should have writtenD. ought to write24. My sister met him at the Grand Theatre yesterday afternoon, so he ________ your lecture.A. couldn’t have attendedB. needn’t have attendedC. mustn’t have attendedD. shouldn’t have attended25. Research findings show we spend about two hours dreaming every night, no matter what we ________ during the day.A. should have doneB. would have doneC. may have doneD. must have done26. —Is there any flight to Tokyo today?— I think there _____, for the weather is too bad.A. mustn’t beB. mightn’t beC. needn’t beD. can’t be27. —I’m told that John had another car accident this morning.— I believe not. He _____ so careless.A. shouldn’t have beenB. wouldn’t have beenC. couldn’t have beenD. mustn’t have be en28. It was playing computer games that cost the boy a lot of time that he __________ doing his lessons.A. might have spentB. ought to have spentC. must have spentD. could have spent29. —I didn’t know you were good friends.—You _______. I have known her since she moved here. You were studying abroad then.A. may haveB. needn’t haveC. couldn’t haveD. must have30. They must have finished the work by the end of last month, __________?A. mustn’t theyB. haven’t theyC. hadn’t theyD. didn’t they31. —I didn’t see her yesterday.— Of course, you _____, because he had gone for a trip.A. can’tB. may not haveC. can’t haveD. mustn’t have32. You ________ phone him if you want to, but you _________. He is sure to phone you.A. may; mustn’tB. have t o; needn’tC. can; doesn’t needD. can; needn’t33. — She must have gone back to the valley.— ______, she _____ have. The entrance to it was nowhere to be found.A. No; mustn’tB. Yes; mightC. Yes; couldD. No; couldn’t34. He _____ full marks, but he was so careless as to make a spelling mistake.A. must have gainedB. can have gainedC. could have gainedD. must gain35. From what you said, she _____ you about it.A. mustn’t have toldB. can’t have toldC. mustn’t tellD. can’t tell36. — You ought to have made an apology to Tom yesterday evening.— Yes, I know I _________.A. ought toB. have toC. should haveD. must have37. —Is there a fog in the evening?—There _______ be. I’ll make a phone call to find it out.A. mustB. wouldC. willD. might38. — _______ he help you with the problem?—Well, though it is very hard, __________ I’ll do what I can to work it out.A. Shall; butB. Can; andC. Must; howeverD. Will; still39. —How is that, Joan?—Yeah, it’s from the boss. She _________ first, whether she likes it.A. shall goB. ought to have goneC. should goD. must have gone40. —Would you like to watch the video, in which you can see foreigners making jiaoji during the Spring Festival?—Sure, it ______ be very interesting.A. shouldB. mayC. canD. will41. —The door was open.—It _________ open. I had locked it myself and the key was in my pocket.A. can not beB. must not beC. can not have beenD. must not have been42. —Where ________ Margaret have put the empty bottles?—She ________ them away. They must be somewhere.A. can; can’t have thrownB. must; needn’tC. must; must have thrownD. cant; must throw43. —Mum, I climbed to get the Teddy Bear from the top of the shelf.—My goodness! You _______ yourself. You ______ do that next time.A. mu st have hurt; mustn’tB. should have hurt; can’tC. may have hurt; mustn’tD. might have hurt; won’t be able to44. —Shall I go and buy more food and drinks for the party?—No, we have prepared a fridge of those. That _______ be quite enough.A. canB. mayC. mightD. ought to45. —Hurry up, Michael! It’s ten to three.—Goodness me! The class_______. I’ll be late again.A. must beginB. may beginC. should have begunD. must have begun46. When he was there, he ____ go to that coffee shop at the street comer after work every day.A. wouldB. shouldC. had betterD. might47. —I hear you have written a novel.—Yes, the book ________ be out in a month or so.A. canB. dareC. shouldD. need48. —How could I thank you enough?—Don’t mention it. Any other man _________ that.A. must doB. could doC. would have doneD. should have done49. —Why aren’t they here yet?—They ________ the bus.A. can have missedB. must be late forC. may have missedD. might be late for50. Mike _______ come to see me I don’t want to go out in case he comes.A. canB. mustC. mayD. will51. The thief ________ in from the kitchen window as the door was closed.A. may climbB. must have climbedC. could have climbedD. should have climbed52. —You didn’t invite Bill?— __________ him too?A. Must I inviteB. Must I have invitedC. Should I inviteD. Should I have invited53. —Why didn’t you attend the lecture yesterday?—I didn’t think that we _______ on Sundays.A. shouldB. ought to haveC. shouldn’t haveD. will have to54. It’s said that there are plenty of hotels in that town. There ______ be any difficulty for you to find somewhere to stay.A. wouldn’tB. mustn’tC. shouldn’tD. needn’t55. —Would you be here to attend the English party this evening?—Yes, we _________.A. shallB. wouldC. willD. must56. On Sundays when I was a child, Father and I _______ get up early and go fishing.A. couldB. wouldC. mightD. should57. —You’d better keep quiet in class.—Sometimes I ________ Yesterday, I was very quiet during my English class.A. wouldB. doC. didD. have58. I lived with my sister this summer and didn’t have to pay rent. So I ______ save most of my salary.A. couldB. wouldC. was able toD. should59. —Look, John’s fallen asleep.— Oh, he _______ too late last night.A. might sit upB. should have sat upC. could sit upD. must have sat up60. —I posted the letter a week ago.—Then they __________ the letter by now. It usually takes four days.A. can have receivedB. must receiveC. should receiveD. ought to have received61. He used to teach in that university and I _________ ride past it on my way to work.A. wouldB. couldC. shouldD. might62. —So you have to leave now.—Yes, I __________.—How nice it would be if you could stay a bit longer!A. have toB. ought toC. doD. have63. He _______ Shanghai, for I saw him talking with the headmaster a moment ago.A. must have gone toB. can’t have gone toC. mustn’t have been toD. can’t have been to64. From what I learn about their hotel, the service and the weather, they _____ their holiday very much.A. wouldn’t have enjoyedB. shouldn’t have enjoyedC. needn’t have enjoyedD. can’t have enjoyed65. It is not like Jack to be unfriendly, so he _________ you when you called.A. can’t have seenB. should not have seenC. must not have seenD. need not have seen66. —Many people in England love to give advice on weather reporting.—Yes, but I think the weather office’s computers _________ be more accurate.A. canB. mustC. ought toD. might67. —The farmers lived near the high way.—________ very noisy.A. It must have beenB. They must beC. That might beD. There must be68. She is too slow. She ________ pass the test, but she __________ too little.A. would; knewB. will; knowsC. would; knowsD. will; knew69. —Mary didn’t turn up last time, did she?—No. She_________. We had changed our plan.A. shouldn’t have comeB. needn’t have to comeC. didn’t need to comeD. needn’t have come70. —They haven’t finished the work up to now.—Well, they________.A. shouldB. should haveC. wouldD. must have71. —Shall I go and buy more fruit for the party?—No, I have already bought 3 baskets. That _________ be enough.A. canB. ought toC. mayD. might72. —Why hasn’t the speaker turned up?—He _________ the flight. I’ll find it out at once.A. must have missedB. might have missedC. would have missedD. could have missed73. I _______ pay Tom a visit, but I am not sure whether I will have time this Sunday.A. shouldB. mightC. wouldD. could74. —Who is the girl standing over there?— Well, if you _____ know, her name is Mabel.A. mayB. canC. mustD. shall75. It has been announced that candidates (考生)________ remain in their seats until all the papers have been collected.A. canB. willC. mayD. shall【答案解析】1．D。

初三下册英语情态动词专项练习(含答案和解析)含解析

初三下册英语情态动词专项练习(含答案和解析)含解析一、选择题1．—I prefer western food. It’s delicious and good for us.—_______ ? But western food is said to be high in sugar and fat.A．Is that right B．How do you know thatC．Do you really think so D．Who told you that2．—Are you going to offer some masks and alcohol wet wipes (酒精湿巾) to the people in the village?—________ They are in great need of these things.A．What a shame! B．Why not? C．Why me? D．What's wrong? 3．—I just got a message from Ms. Yang and she said she would come to our meeting this afternoon.— She always has good ideas.A．Why not? B．What a pity! C．Time is up. D．That’ll be very nice. 4．—Don’t forget to keep safe distance (距离) at least one meter, Mike!—________A．Sorry, I won’t.B．No, I can’t do it.C．Not at all. D．I hope not. 5．—The game is too hard for me. I will certainly lose.—________. You should never say no before you try.A．Forget it! B．Come on! C．I’m sorry.D．Pardon me? 6．—I’m afraid I can’t find the key to the car.—______. I’ll wait for you. We have e nough time.A．Hurry up B．All rightC．It is up to you D．Hold your horses7．— I find it difficult to fall asleep before exams. Could you help me?— ___________. We have helped many students with similar problems.A．No problem B．Come on C．Well done D．What a pity 8．—________.—It’s a pleasure.A．Don’t worry about the task B．Thank you for showing me aroundC．Be careful when you travel D．You’d better get up now9．—I thought I’d try to repair the car myself.— __________ ! You know nothing about the car.A．No way B．You can’t be serious C．I couldn’t agree more D．Don’t change a thing10．—I’m afraid I can’t do well in the sports meeting. I might let my classmates down.—_______. You don’t need to push yourself too hard.A．It’s a pleasure B．What a pity C．Take it easy D．You’re welcome 11．--Would you like to go shopping with me on Saturday?-- . I have to help my mother with housework.A．I’m afraid not B．Take your timeC．Enjoy yourself D．That’s all right12．—Another Friday! Let’s go to see the play tonight.—________ I will book the tickets online.A．My pleasure. B．That’s right.C．Why not? D．Never mind. 13．—It’s been a wonderful party. Thank you very much?—- ________________.A．With pleasure B．No , thanks C．It’s OK D．I’m glad you enjoyed it .14．— Are you feeling any better now after taking the medicine?—________. I’m feeling even worse.A．You got it B．Never mind C．Sorry to hear that D．Quite the opposite 15．— Could you please clean your room?—_________. I’ll do it at once.A．Yes, sure B．Sorry, I can’t C．It doesn’t matter D．Here you are 16．— What do you think of the movie Mr. Bea ?—____. It’s very funny.A．I can’t stand it .B．I don’t mind it C．I love it. D．I hate it. 17．—Would you like a small or a large bowl of noodles? —_______. I’m very hungry.A．A small bowl B．A large bowl C．Yes, please D．No, thanks 18．-Do you mind telling me how to use this function? - . It’s easy. Just double-click on the “Pencil” icon.A．No, not at all B．Of course, I doC．Yes, I do D．Yes, I don’t19．—Would you please help me with my spoken English?—__________. First you should know practice makes perfect.A．That’s right B．No problem C．Quite well D．No, thanks 20．—Lucy, can you help me with my history?—________. I am good at it.A．With pleasure B．I’m afraid not C．Sorry, I can’t D．No way 21．—Sir, this is your order, two chicken hamburgers and a cup of coffee. ________—I’ll have them here.A．For here or to go? B．Something to drink? C．Anything else? D．Is that OK? 22．—Why not take your son to watch the new film A Little Red Flower?—__________.A．Good idea B．No problem C．Good luck D．No way 23．—You seem so happy today, Jack.—________? I won the first prize in the singing competition yesterday.A．So what B．How come C．Guess what D．Why not 24．—________. Where’s the nearest supermarket?—Oh, it’s about 300 meters away, next to a park.A．Thank you B．Excuse me C．Come on D．That’s OK 25．—I’m sorry. That wasn’t of much help.— ________. In fact, it was most helpful.A．Thanks anyway B．It doesn’t matter C．Of course not D．Sure it was 26．—I wonder if Tenny is doing well in her new school.—________. She is old enough to look after herself well.A．You’re welcome B．Good luck C．It’s a pity D．No need to worry 27．—Can you tell me how to get to the park?—________—Thank you all the same.A．Show me the map, please.B．Certainly. It’s opposite the museum.C．Sorry, I don’t know. I’m a stranger here.D．Sure. Turn right and go along Rock Road.28．—How would you like your soup?—________.A．Very delicious B．With some tomatoes and eggs, pleaseC．I like it very much D．No, thanks29．—Don’t keep the water running when you brush your teeth.— ________ .A．I hope so B．I’m afraid not C．Sorry, I won’t D．It’s nothing 30．—How do you find the documentary DA VID Profile(国宝档案).—________. I can’t think too highly of it.A．It all depends B．It’s really wonderfulC．No one knows for certain D．It is not my cup of tea31．—I find it really unwise to go travelling during May Day holiday.—________! Wherever you go, it’s crowded with cars and people.A．Not exactly B．Forget it C．You said it D．It depends 32．— Why will you take part in the charity walk? You are not good at running at all.— ________. I run to show that I can help others.A．Not exactly B．That’s not the point C．I can’t agree more D．It sounds like a pity 33．—Shall we go to the amusement park right away or the day after tomorrow?—________. Any time will do.A．Excuse me B．Have a good timeC．It’s up to you D．I’m afraid I can’t34．—How do you like coffee, Minnie?—It tastes very terrible. ________.A．I have no idea B．I don’t mind i t C．I really can’t stand it D．I can’t afford it 35．— Mike, are you ready for the coming final exam?— ________. I have prepared it for weeks.A．You bet B．No deal C．Bad luck D．Have fun 36．— Do you think Steve will pass the exam this time?— ________! He spends most of his time playing games on the phone.A．Promise B．No way C．Well done D．No problem 37．—Can I look at the menu for a few more minutes before I decide?—Of course. ________, Sir.A．Make yourself at home B．Enjoy yourself C．It doesn’t matterD．Take your time38．—How about putting some pictures into the report?—________ A picture is worth a thousand words.A．I don’t think so.B．Why not?C．Thank you. D．Don’t mention it.39．—Why don’t you join in a club to practise speaking English?—________.A．That’s a good idea B．Never mind C．Yes, please D．Thank you 40．—Many people think women are better at cooking than men.—________. Most top chefs in the world are men.A．I agree B．I can’t agree more C．Not at all D．That’s not the case 41．—I’ll be away on a business trip. Would you mind looking after my cat?—Not at all. ________.A．It’s my pleasure B．I’d rather not.C．I’d like it.D．With pleasure. 42．—Thank you for helping to build hospitals during this special period.— ________ ! Many hands make light work.A．My pleasure B．All right C．Never mind D．None of my business43．—I prefer to chat online. I’ve got to know many friends on the Internet.—________. Few of them would become your real friends.A．I can’t agree more B．I’m pleased to know thatC．That’s for sure D．T hat’s not the case44．—I visited the Purple Mountain Observatory by myself last Saturday.—________ Why didn’t you tell me earlier?A．You did? B．I hope not. C．Have a good time. D．I can’t believe it. 45．—Do you think you could finish this project without help?—________. This is not the first time for me.A．Take care B．Don’t worry C．Not exactly D．Hurry up 46．—Mum, Joe has broken a cup!—________. Accidents always happen.A．Pretty good B．Of course C．It doesn’t matter D．That depends 47．—We’ll study in different schools next term. I hope you’ll enjoy your time in the new school!—________A．I’ll take your advice. B．The same to you. C．Congratulations!D．It doesn’t matter.48．— The movie Lost in Russia sends a message about the importance of family.— ________. It reminds me of my parents.A．I hope so B．That’s all right C．You bet D．I don’t think so 49．— The dress I got is not the same color as that is shown online.—________? But if so, I promise we will send you another one.A．How come B．Who knows C．What for D．Why worry 50．—________!—Yes. It sounds gentle and relaxing.A．How good the vegetable soup is B．How exciting the storybook isC．What nice music Ann is playing D．What a beautiful flower Jim keeps【参考答案】***试卷处理标记，请不要删除一、选择题1．C【详解】句意：——我更喜欢西餐。

【英语】情态动词练习题(含答案)

【英语】情态动词练习题(含答案)一、初中英语情态动词1．—We've got everything ready for the picnic.—Do you mean I __________ bring anything with me?A. can'tB. mustn'tC. couldn'tD. needn't【答案】 D【解析】【分析】句意：—我们已经为野餐准备好了一切。

—你的意思是我不必带任何东西吗？A. can't 不能；B. mustn't 表示禁止，一定不要；C. couldn't不能，表示过去时态；D. needn't不必。

结合句意，故选D。

【点评】本题考查情态动词的用法。

2．—How amazing this robot is!—Wow, it has video cameras in its eyes, so it “see” and interact with people.A. mayB. canC. mustD. should【答案】 B【解析】【分析】句意：—这个机器人多么惊人啊！—哇，在它的眼睛里有摄像机，因此它能看见和人打交道。

A. may 可以，可能；表示许可，B. can 能；表示能力，C. must 必须；D. should应该；根据it has video cameras in its eyes,可知是有能力看见，故选B。

【点评】考查情态动词辨析。

熟记情态动词的含义和用法。

3．A hard-working man ______ become a great scientist, but a great scientist _______ be a hard-working man.A. can't; canB. may not; mustC. can't; mustD. may not; can【答案】 B【解析】【分析】句意：一个勤奋的人可能不会成为一位伟大的科学家，但是一位伟大的科学家一定是一个勤奋的人。

【英语】高考英语情态动词题20套(带答案)及解析

【英语】高考英语情态动词题20套(带答案)及解析一、单项选择情态动词1．—Can I pay the bill by check?—Sorry，sir．But it is the management rules of our hotel that payment _____ be made in cash．A．shall B．needC．will D．can【答案】A【解析】【详解】考察情态动词用法。

句意：——我能用支票付账吗?——对不起,先生。

但这是我们酒店的管理规定,支付要用现金。

shall可以表示命令，警告，强制，或者指规则和法律要求做的事情。

本题正是考察了shall表示按照规则和法律要求做的事情。

故A正确。

2．Ann said whenever her father was unhappy he ________ go out and buy something, usually something large and useless.A．should B．couldC．would D．might【答案】C【解析】【详解】考查情态动词。

句意：安说无论什么时候她父亲不高兴的时候，他就会出去买些东西，通常是一些又大又没用的东西。

A. should应该；B. could能；C. would总是，愿意；D. might 可能。

此处表示过去经常习惯做某事，故选C。

3．The accident which left 15 people on board dead ________ if both the angry female passenger and the bus driver had kept calm.A．should have avoided B．should be avoidedC．could have avoided D．could have been avoided【答案】D【解析】【详解】考查“情态动词+完成式”。

高考英语情态动词专项训练100(附答案)含解析

【答案】A
【解析】
【详解】
【详解】
考查情态动词。句意：所有学生们应在去学校之前带上口罩以防感染非典病毒，这已经被宣布。shall用于第二、第三人称，表示说话人给对方命令、警告、允诺或威胁，故选A项。
C．couldn't have takenD．needn't have taken
【答案】D
【解析】
【详解】
考查情态动词+ have done。句意：天气转晴了。我本不必费心把伞带在身边。A. should have taken本应该做某事，而实际上没做；B. must have taken对过去发生的事情的肯定猜测；C. couldn't have taken不可能；D. needn't have taken本来不需要，故选D。
【解析】
D[考查虚拟语气。句意：不可能是邮递员在门口，才六点钟呢。mustn't禁止，不允许；can't不可能；won't不愿意，就是不，偏不；needn't不需要。]
5．—Where is my dictionary?I remember I put it here yesterday.
—You___it in the wrong place.
3．While it wasn’t the goal of the trip, I was rewarded with fresh insights, ones that ________ to me during the regular course of business.
A．might never happenB．could never have happened
A．should have doneB．need have doneC．would have doneD．must have done

英语情态动词专项习题及答案解析

英语情态动词专项习题及答案解析一、单项选择情态动词1．—________ the woman with the baby come over? We have a seat here.—Thank you, sir. Actually I do have my seat here. But my baby likes to look out of the window. A．Would B．ShallC．Must D．May【答案】A【解析】【详解】考查情态动词。

句意：——那位抱小孩的女士，要不来这边吧?这儿有个座位。

——谢谢，实际上我有座位的，只是我的孩子喜欢看窗外。

would表示婉转的请求，征求对方的意见，Shall提问一般只用于第一人称，我们常说Shall I.或者 Shall we；may表示请求对方允许。

故选A。

【点睛】would的用法1.would 最常见的用法是：相对于一个过去时间点的后来“将要”做什么，比如：He said he would meet me at the station. 他说他会在车站接我的。

这句中的 would meet 是相对于 said （过去说）之后要做的事情。

又如：She thought she would have to ask someone for help. 她当时想，她得找个人帮忙。

2．—I feel a little nervous.—Take it easy. You __________ have difficulty passing the exam when you have prepared for it well.A．mustn’t B．needn’t C．may not D．shouldn’t【答案】D【解析】【详解】考查情态动词。

句意：——我觉得有点紧张。

——不要着急。

当你准备充分时，通过考试应该不会有困难。

A. mustn’t禁止，不允许；B. needn’t不必；C. may not可能不会；D. shouldn’t不应该。

情态动词专项练习(含答案和解析)

情态动词专项练习(含答案和解析)1.Our XXX.2.To my joy。

we don't need to go to the bank。

Mary has lent us some money.3.- Do we have to finish this today?Yes。

you must。

Today is the last day.4.Sorry。

smoking is not allowed here。

If you do。

you will be fined according to the rules.5.- Is it really necessary for me to wear a mask when shopping?I'm afraid you must in public。

It is not only to XXX.6.Hurry up。

or we will miss the beginning of the film.7.- How do you like my new dress?Well。

if I must say。

it is not suitable for you.8.- Do the children have to leave at six tomorrow morning?16."Please don't make so much noise。

I can't hear the speaker very well."17."We've discussed every detail of this plan and have got everything ready。

But still something may go wrong。

We still have to be very careful."18."XXX。

【英语】英语情态动词题20套(带答案)及解析

【英语】英语情态动词题20套(带答案)及解析一、单项选择情态动词1．No student ________ go out of school to have lunch without permission of the headteacher. A．might B．mustC．shall D．could【答案】C【解析】【详解】考查情态动词。

句意：未经校长允许，任何学生不得离开学校去吃午饭。

might可能；must一定，必须；shall会，将；could能够。

本句是一条禁令。

shall用于肯定句并且主语是第一、三人称时，表示允诺，警告，劝告等语气。

故选C。

2．While it wasn’t the goal of the trip, I was rewarded with fresh insights, ones that ________ to me during the regular course of business.A．might never happen B．could never have happenedC．should not happen D．needn’t h ave happened【答案】B【解析】【详解】考查虚拟语气。

句意：虽然这并不是这次旅行的目的，但我得到了一些新的领悟，那些领悟在我的日常生活中是本不可能发生的。

此处考查虚拟语气，“我得到新的领悟”发生在过去，故此处是与过去事实相反，应用could/might/would/need/should+have done，“本不可能发生”是could never have happened，故选B项。

【点睛】本题考查“情态动词+have done”的虚拟语气，其常用表达有：could have done本能做某事而未做couldn’t have done不可能做了某事should have done本应该做某事而未做shouldn’t have done本不应该做某事而做了would have done本会某事而未做wouldn’t have done本不会做某事而做了need have done本需要做某事而未做needn’t have done本不必要做某事而做了3．—I don’t really like Janes. Why did you invite him?—Don’t worry. He come. He said he was’t certain what his plans were.A．must not B．need not C．would not D．might not【答案】D【解析】考察情态动词，题干中的he wasn’t certain说明他可能不来，可能来，因此使用不完全否定，might not。

情态动词专项练习(附答案)

情态动词专项练习(附答案)She。

be in the kitchen。

I saw her there just now.A。

mayB。

mustC。

can'tD。

should答案】A解析】【分析】句意：——妈妈现在在哪里？——她可能在厨房。

may表示“可能”，XXX表示“不可能”，must表示“一定”，should表示“应该”，根据I saw her there just now.我刚才在那里看到她，可以推断她现在可能还在那里，用may，故选A。

点评】此题考查情态动词的推测用法。

注意理解句意，根据上下文语境确定所使用的情态动词。

5．—Do you think I can borrow your bike for a week?Sorry。

you。

not。

I need it myself.A。

XXX答案】C解析】【分析】句意：——你觉得我能借用你的自行车一个星期吗？——对不起，你可能不能。

XXX表示能够，must 表示必须，need表示需要，may表示可能，根据I need itmyself.我自己需要用，可以推断你可能不能借用，用may，故选C。

点评】此题考查情态动词的推测用法。

注意理解句意，根据上下文语境确定所使用的情态动词。

5.那个骑马的女孩不可能是XXX，因为她的左腿在昨天的事故中受了重伤。

因此，可以推测她不可能骑马，选项C 表示否定的推测，所以选C。

6.我们已经点了太多的食物，我不能再吃了。

选项A表示不能，符合句意，所以选A。

对方提议将剩余的食物带回家，表示不浪费，也是可以接受的。

5.那个骑马的女孩可能不是XXX，因为她的左腿在昨天的事故中受了重伤。

因此，可以推测她不可能骑马，选项C 表示否定的推测，所以选C。

6.我们已经点了太多的食物，我不能再吃了。

选项A表示不能，符合句意，所以选A。

对方提议将剩余的食物带回家，表示不浪费，也是一个好主意。

1.今天暑假你有什么计划吗？我还没有确定，但可能会去台湾旅行。

英语情态动词试题答案及解析

英语情态动词试题答案及解析1. (2013·全国Ⅰ，29)The door ________ open, no matter how hard she pushed.A．shouldn't B．couldn'tC．wouldn't D．mightn't【答案】C【解析】句意：不管她怎样用力推，门就是打不开。

would情态动词(表示尽管付出很大努力却没有发生)就(不)，偏(不)，如：He kicked, pushed, and hurled his shoulder at the door. It wouldn't open.他冲着门又踢又推，还用肩膀撞，但门就是打不开。

故C项正确。

2. (2013·全国Ⅱ，6)Since nobody gave him any help, he ________ have done the researchon his own.A．can B．mustC．would D．need【答案】B【解析】本题考查情态动词的用法。

句意：因为没有人帮助他，他一定是自己独立完成的研究。

can have done表示对过去事实的否定或疑问推测；must have done表示对过去事实的肯定推测；need have done表示本有必要做而未做。

故B项正确。

3.（2013·新课标I卷）The door ________ open, no matter how hard she pushed. A．shouldn’t B．couldn’t C．wouldn’t D．mightn’t【答案】C【解析】此处would not用来表达：即使某人努力让某事发生，某事就是不发生之意。

即为“偏不”的意思。

故C正确。

句意：无论她怎么用力推，门就是打不开。

【考点】本题考查情态动词的用法。

4.（2013·浙江）I______ myself more－it was a perfect day.A．shouldn’t have enjoyed B．needn’t have enjoyedC．wouldn’t have enjoyed D．couldn’t have enjoyed【答案】D【解析】句意：我实在是太开心了，真是很完美的一天。

(完整版)情态动词专项练习及答案

情态动词专项练习1. Jean have kept his promise. I wonder why he changed his idea.A. mustB. shouldC. needD. would解析：选B. “should have +过去分词” 表示“过去本来应该(但没能)做某事”；keep one’s promise 意为“信守诺言”。

2. Jane have come to the party, but she not find the exact time.A. could; couldB. might; couldC. should; couldD. should; would解析：选A.“ could have+过去分词表示过去本来应该(但没能)做某事”。

3. So many mistakes in your homework! You more careful.A. may beB. had toC. would beD. should have been解析：选D. “You should have been more careful”. 意为：你本来应该更细心的。

4．Her brother be at home now, because he was seen playing basketball in the stadium just now.A. mustn’tB. needn’tC. can’tD. shouldn't解析：选C. can’t be at home 意为：不可能在家。

5．---I can’t understand wh y our boss is late.---He the early bus.A. could missB. may have missedC. can have missedD. might miss解析：选B. “may have+过去分词”表示对过去动作的判断，意为：可能做了某事。

英语情态动词含答案解析

英语情态动词含答案解析一、情态动词单项选择题1．By the time she was eight, Daisy ________ read English and French.A．must B．need C．could D．may【答案】C【解析】【详解】句意：在Daisy八岁的时候，就可以读英语和法语了。

考查情态动词。

must必须；need需要；could能，会；may可以。

根据“By the time she was eight,”可知，是一般过去时态，从句和主句的时态保持一致，此处是会说英语和法语，用情态动词can的过去式could，故选C。

2．—Miss Chen, how can I get better grades in exams?—Besides by learning wisely and studying hard, you ________ be careful to check papers again. A．can’t B．might C．must【答案】C【解析】【详解】句意：——陈老师，我怎样才能在考试中取得更好的成绩呢？——除了明智地学习和努力学习之外，你必须仔细检查卷子。

考查情态动词。

can’t不能；might可能；must必须，一定。

根据“Miss Chen, how can I get better grades in exams?”及常识可知想要取得考成绩就一定要仔细检查试卷，用must符合语境。

故选C。

3．— Ann, ________ you finish the e-mail in twenty minutes?— Yes, I can.A．can B．must C．need D．should【答案】A【解析】【详解】句意：——安，你能在20分钟内写完邮件吗？——是的，我能。

考查情态动词。

can能够；must一定；need需要；should应该。

英语情态动词含答案解析

英语情态动词含答案解析一、情态动词单项选择题1．Tom, you ________ cross the road now. The traffic light is still red.A．couldn’t B．wouldn’t C．mustn’t D．needn’t【答案】C【解析】【详解】句意：汤姆，你现在不能过马路。

交通灯仍然是红色的。

考查情态动词。

couldn’t不能够；wouldn’t不会；mustn’t禁止，一定不；needn’t不必。

根据“The traffic light is still red.”可知红灯亮时禁止过马路。

故选C。

2．—Must I return the book this week?—No, you ________. You can ________ it for 20 days.A．mustn’t; keep B．needn’t; borrow C．don’t have to; keep D．mustn’t; lend【答案】C【解析】【详解】句意：——我必须在本周还书吗？——不，你不必这样做。

您可以借20天。

考查情态动词的一般疑问句。

在以must开头的一般疑问句，肯定回答用must；否定回答用need’t或者don’t have to，故排除A和D。

第二空根据“it for 20 days.”可知该空是延续性动词，borrow是短暂性动词，因此排除B。

故选C。

3．In China, all passengers ________ wear protective masks while using public transport. A．should B．need C．can D．must【答案】D【解析】【分析】【详解】句意：在中国，所有乘客在乘坐公共交通工具时必须佩戴防护口罩。

考查情态动词。

should应该；need需要；can可以；must必须。

根据“wear protective masks”和生活常识可知，是必须要佩戴防护口罩，因此must符合句意。

英语情态动词题20套(带答案)及解析

6．I still find it hard to imagine that such a clever child __________ make such a foolish mistake.
A．shallB．must
C．canD．should
【答案】D
【解析】
【详解】
考查情态动词。句意：我仍然难以想象这样聪明的孩子竟然犯这样愚蠢的错误。should作为情态动词，可以用来表示意外、惊喜或者在说话人看来是不可思议的，常常译为"竟会"、"居然"，这么聪明的孩子竟然犯这样愚蠢的错误。表示意外，shall表示允诺，命令等，must表示必须，can表示能力及可能性。所以答案选D。
【答案】B
【解析】
试题分析：考查情态动词用法。Shouldn’t have done本不应该做某事，实际上却做了（虚拟语气）；couldn’t have done不可能做某事（对过去情况的推测）；needn’t have done本不需要做某事，实际上却做了（虚拟语气）；句意：我的姐姐昨天下午在街上遇见了他，所以他不可能去听了你的演讲。故B正确。
3. 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。如：Shall we begin our lesson? When shall he be able to leave the hospital?
4. shall用于第二、第三人称，表示说话人给对方命令、警告、允诺或威胁。如：You shall fail if you don't work harder.（警告）He shall have the book when I finish reading.（允诺）He shall be punished.（威胁）

七年级英语：情态动词专项练习带答案解析

情态动词练习题含答案解析1. A good friend is someone you ________ share your pleasure and pain with.（）A. oughtB. needC. canD. must2.—Mum, ______ I play football this afternoon?—Sure,but you ______ finish your homework first.（）A. may;couldB. can; mustC. can;mustn'tD. may; can't3.—Excuse me, is this the right way to the Children's Palace?—Sorry, I'm not sure. But it________ be.（）A. mustn'tB. mightC. can'tD. must4.—You look very pretty,if I ________ say so. —Thanks a lot for saying that.（）A. mustB. mayC. willD. have to5. Please don't make so much noise. I________ hear the speaker very well.（）A. needn'tB. mustn'tC. can'tD. shouldn't6.You ________ take me to the station. My brother's taking me.（）A. can'tB. mustn'tC. shouldn'tD. don't have to7.—Mum, ________ I visit the Modern ArtMuseum next Monday?—I'm afraid you can't. All the museums in thiscity are closed on Monday.（）A. wouldB. needC. shouldD. may8.We need clean air and water,so we ________ protect the environment.（）A. canB. mayC. mustD. might9. —What should we do to protect the fish in the river?—We________ throw rubbish into the river.（）A. needB. needn'tC. mustD. mustn't10.—What's wrong with Judy? She has been absent for two days.—Oh, she_____ be ill. Let's go to ask Mr. Green.（）A. mayB. needC. would11.—We've got everything ready for the picnic.—Do you mean I______ bring anything with me?（）A. can't B. mustn't C. couldn't D. needn't12.—Excuse me, ________ I take the magazine out of the reading room?—Sorry, you can't. Just here, please.（）A. mustB. wouldC. mayD. need13.Rock music ___ sound popular with the young,but it's not the favor of the aged people.（）A. mustB. needC. shouldD. may14.—Must I wait here all morning? I have a lot of work to do.—No, you____. You may be back in the afternoon.（）A. mustn'tB. can'tC. don't have to15.The passengers ______ show their ID cards before getting on the plane.（）A. mightB. mustC. could16. —Finally, they came back.—They_____ be hungry after such a long walk.（）A. can'tB. mustC. needn't17. —I still haven't found my pet dog.—I'm sorry to hear that. You_____ be very sad.（）A. canB. shouldC. mustD. will18. —Look at the young lady in red. Is it Mrs.Li?—No. It________ be her. She is wearing a white dress today.（）A. mustn'tB. needn'tC. can't19. —Is that man Mr.Zhang?—It________ be him. He went to Beijing for a meeting yesterday.（）A. can'tB. mustn'tC. needn't20. The girl in the classroom ________ be Sarah. She has gone to the library.（）A. mayB. mustC. can'tD. needn't21. —Whose bike is this?—I am not sure. It ________ be Mary's.（）A. shallB. mustC. might22. —Where are you going this month?—We________ go to Xiamen,but we're not sure.（）A. needn'tB. mightC. mustD. mustn't23. —Is Tom coming by train?—He________ drive his car,I'm not sure.（）A.can't B. may C. Must解析答案句意：一个好朋友就是和你一起分享你的快乐和悲伤的人。

英语情态动词含答案解析

英语情态动词含答案解析一、情态动词单项选择题1．—May I watch TV now, Mom?—No. You ________ finish your online class first.A．must B．may C．can【答案】A【解析】【详解】句意：——妈妈，我现在可以看电视吗？——不。

你必须先完成在线课程。

考查情态动词。

must必须；may可能；can可以，能够。

根据“No.”可知不允许对方看电视，应是必须先上完网课，用must符合语境。

故选A。

2．Life is like riding a bike. To keep our balance, we ________ keep moving.A．needn’t B．can C．must【答案】C【解析】【详解】句意：人生就像骑单车。

为了保持平衡，我们必须不断前进。

考查情态动词。

needn’t不必；can可以；must必须。

根据“Life is like riding a bike.”结合常识可知骑单车时为保持平衡必须不断前进，用must符合语境。

故选C。

3．—Listen! I think it ________be Mr. White singing in the office.—No. It ________ be him. He left for London just now.A．must; mustn’t B．may; mustn’t C．must; can’t D．can; can【答案】C【解析】【详解】句意：——听，我认为那一定是怀特先生在办公室唱歌。

——不，不可能是他，他刚刚去伦敦了。

考查情态动词表猜测的用法。

must一定，表示肯定猜测；mustn’t禁止，不能用来表示猜测；may可能，表示不确定；can可能，表示不确定；can’t不可能，表示否定猜测。

此题关键看答句：根据“He left for London just now.”可知他去伦敦了，所以那个唱歌的人不可能是怀特先生，要用can’t，故选C。

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