人教版英语英语情态动词易错题集锦-名师教育含答案百度文库
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．— Listen! Peter is singing in the next room.— It ________ be him. He has gone back to his hometown.A．can’t B．might C．must D．shouldn’t【答案】A【解析】【分析】【详解】句意：——听！彼得正在隔壁房间唱歌。
——不可能是他。
他已经回到他的家乡了。
考查情态动词辨析。
can’t不可能；might可能；must一定、必须；shouldn’t不应该。
根据“He has gone back to his hometown.”可知他已经回到他的家乡了，说明不可能是彼得在隔壁房间唱歌，表示否定推测，用can’t“不可能”，故选A。
2．You ________ be careful with the camera. It costs!A．can B．will C．should D．may【答案】C【解析】【分析】【详解】句意：你应该小心你的相机。
它很贵！考查情态动词辨析。
can可以；will将；should应该；may可能。
根据“It costs!”可知相机很贵，应该小心。
故选C。
3．— Must I finish the homework today, Mr. Brown?— No, you ________. You can finish it in two days.A．can’t B．mustn’t C．needn’t【答案】C【解析】【详解】句意：——布朗先生，我必须今天完成作业吗？——不，你不必。
你可以在两天内完成它。
考查情态动词。
can’t不可能；mustn’t禁止；needn’t不必。
must引导的一般疑问句，否定回答用don’t have to或needn’t，故选C。
4．— Who is the woman _______ short hair?—I think she ________ Kate’s mother.A．has ; maybe B．with; maybe C．has; may be D．with; may be【答案】D【解析】【分析】【详解】句意：——那个短发的女人是谁？——我想她可能是凯特的妈妈。
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1．一There is somebody knocking at the door. Who ________ it be?一I'm not sure. But it ________ be a delivery man(快递员). I bought something on Pin Duoduo. A．may; must B．must; can C．can; may D．must; may【答案】C【解析】【分析】【详解】句意：——有人在敲门。
会是谁呢？——我不确定。
但可能是快递员。
我在拼多多上买了些东西。
考查情态动词。
may可能；可以；must必须；一定；can可能，能。
第一句话是特殊疑问句，表示“可能”，应用can；根据答语中“I’m not sure”可知，第二个空用may表示“可能”。
故选C。
2．—My legs hurts, and I ________ see very well. Will I go blind?—No, you’ve just hit your head.A．may B．can C．may not D．can’t【答案】D【解析】【详解】句意：——我的腿疼，我看不太清楚。
会失明吗？——不，你只是撞到了头。
考查情态动词。
may可以；can能；may not可能不；can’t不能；根据“Will I go blind?”可知，此处说的是看不清楚，空处表达的是“不能”，应用can’t，故选D。
3．—________ you please tell me something about the life in Canada?—Sorry, I ________. I don’t know either. I’m from Australia.A．Could; couldn’t B．Can; couldn’t C．Could; can’t D．Can; mustn’t【答案】C【解析】【详解】句意：——你能给我讲讲加拿大的生活吗？——对不起，我不能。
【英语】情态动词易错题及解析
C．should not happenD．needn’t have 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。
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
2．Most of the top leaders expressed a common desire at the UN conference, ______ that different cultures ______ coexist with tolerance.
4．-- Did Jim come?
-- I don’t know. He _______ while I was out.
A．might have comeB．might come
C．must have comeD．should have come
【答案】A
【解析】
【详解】
考查情态动词推测用法。句意：Jim来了吗？--我不知道，在我不在的时候，可能来过。根据前文I don’t know.可知，说话者不知道Jim来没来，因此后文推测来过，但是语气很不确定，故可知选A。对过去情况的推测为情态动词+have done，must have done一定做了某事，should have done应该来过，不符合，故选A。
(英语)高考英语易错题专题三情态动词(含解析).docx
（英语）高考英语易错题专题三情态动词(含解析 )一、单项选择情态动词1．I often felt troubled in my teens and my grandma ________ comfort me, saying“ Life is like that, dear”.A． would B． might C． should D． must【答案】A【解析】【解】考情。
句意：在我十几的候，我常感到，我的奶奶会安慰我，“生活就是，的”。
此是would+ 原形，表示“ 去是做某事”。
故A。
2．What a pity! Considering his ability and experience, he ___________ it better.A． need have done B．must have doneC． can have done D． might have done【答案】 D【解析】【解】考虚气中的情。
句意：真憾啊！考到他的能力和，他也可以做得更好。
can have done 少使用此构，表示去行的疑；用于疑句意“ 道真的做了”，表示疑； need have done 需要做某事，上却未做（表示虚气）；must have done 一定做了某事（表示去生的事情的肯定推）；might have done 表示生的事情的推，意思是“可能已”或“也已”，用于肯定句中。
故 D 正确。
【点睛】本是高考必考考点，一定要牢句型意思。
must have done 去肯定做了某事。
shouldhave done 本做而未做。
can ’ t have done去不可能做了某事； shouldn ’ t have done本不做而做了。
need have done 本有必要做某事而没做；needn’t have done本没有必要做某事；注意没有mustn’t have done的形式。
3．— It ’ s already 11 o’ clock , and he ______ have been here half an hour ago.—Maybe he got caught in the rain.A． must C． may B．ought to D． can【答案】B 【解析】【解】考情。
英语情态动词专题练习(及答案)含答案
英语情态动词专题练习(及答案)含答案一、选择题1．— Zoe, what do you think is the greatest advantage of shopping online?— At least I ______ spend much time going from shop to shop.A．shouldn’t B．can’t C．needn’t D．mustn’t2．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’t 3．—Hurry up, Jack! Let’s cross the road as fast as possible.—No, you ________. Don’t you see the light is still red?A．couldn’t B．wouldn’t C．mustn’t D．needn’t 4．—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’t5．We shouldn’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．—________ you give me a hand? I can’t put up the poster by myself.—No problem.A．Could B．Should C．Need D．Must 9．Exercise is helpful but it ________ be regular (规律的) exercise.A．must B．may C．can D．need10．You'd better __________ hard from now on, __________ you will fail the exam. A．work; and B．working; or C．working; and D．work; or 11．—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 12．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．should13．If you buy your mum an iRobot floor cleaner, she ________ sweep the floor every day. A．can’t B．mustn’t C．needn’t D．shouldn’t 14．—Who’s singing next door? Is it Miss Wang?—It ________ be her. She’s having the board meeting.A．can’t B．shouldn’t C．mustn’t D．needn’t15．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 climbed16．—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't17．---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．will 18．—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．Need19．When I was young, my father ___________ take me to climb the hill which was not far from our house.A．may B．must C．would D．should20．You ______ pay too much attention to your pronunciation, as it is so important in the oral （口头的） test.A．shouldn’t B．mustn’t C．can’t D．needn’t 21．—Shall we go camping this summer holiday?—Nothing________be better.A．should B．could C．must D．may 22．—Would you please________in that way? That’s not s afe!—Sorry. I won’t do it any more.A．not driving B．not to drive C．no driving D．not drive 23．Think twice before making a decision, or you __________ get into trouble.A．may B．can't C．shouldn't D．mustn't 24．Don’t cross the road until the traffic lights tur n green. A car_______hit you.A．need B．may C．should D．must25．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 against 26．—Seventy dollars for such a dress! You ________ be joking!—I’m serious. It’s made of silk from Hangzhou.A．must B．need C．will D．can27．—Who is singing next door? It sounds like a young girl’s voice.—It _________ be Jane. But she seldom sings English songs.A．need B．must C．may D．can28．To avoid ________, we’d better ________ the parents’ meeting online.A．gather; hold B．gathering; hold C．gather; holding D．to gather; to hold 29．—I must go to school today, ________?—No, you ________.You can go as soon as you get well.A．mustn’t I;needn’t B．needn’t I;needn’tC．mustn’t I;mustn’t D．needn’t I;mustn’t30．—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 31．— Excuse me, could you tell me where the Nanjing Brocade Museum is?—Go along this road for five minutes. You ________ miss it. It’s a huge building. A．mustn’t B．can’t C．needn’t D．shouldn’t 32．—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 33．—Why didn’t you tell it to me earlier?— Why ________ I? I want to have my own secret.A．can B．may C．should D．shall34．—Is that Mr Zhou?—It ________ be him. He has gone to Beijing.A．can B．may C．can’t D．shouldn’t 35．Most young people like shopping online because they ________ spend much time going from shop to shop.A．needn’t B．can’t C．mustn’t D．shouldn’t 36．—Is it usually warm in Yancheng in May?—Yes. But it _______ be rather cold sometimes.A．must B．should C．would D．can37．—Do we have to finish this today?—Yes, you ________ . Today is the last day.A．would B．may C．can D．must 38．—Will dad arrive home at 6 o’clock to have dinner with us this evening?— I think he will, but he ________ not. Sometimes he works extra hours.A．can B．must C．need D．may39．—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．need 40．Cars ________ give way to walkers on some roads in Binhai, or the drivers will be fined. A．may B．will C．can D．must 41．—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’t 42．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 43．—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 44．—Mum, I bought some strawberries on my way home.—Oh, you’re so sweet. But the strawberries ________ be put into the fridge for freshness. A．must B．can C．may D．need45．—In China, many students have to stay up late to do their homework.—No worries. The government has realized the problem. I’m sure there ________ be good news soon.A．can B．should C．must D．need46．—________ I see your ID card? We have to check your personal information.—Sure. Here you are.A．May B．Need C．Should D．Must47．—I don’t care what people think.—Well, you _______ . Some opinions are worth weighing.A．should B．might C．could D．would48．You ________ drive after drinking alcohol(酒). It’s against the law.A．mustn’t B．needn’t C．couldn’t D．wouldn’t49．—I think they are enough. We ________ make so many chairs.—I don’t think so. Because nearly a quarter of them need ________.A．don’t need to; mending B．needed; to be mendedC．don’t ne ed; mend D．need; to mend50．—Shall I tell him the change of the time right now?—I’m afraid you ________, otherwise he will be late for the meeting.A．can B．may C．must D．need【参考答案】***试卷处理标记，请不要删除一、选择题1．C解析：C【详解】句意：——佐伊，你认为网上购物最大的优势是什么？——至少我不需要花很多时间逛商店。
全面解析初中英语情态动词100例与答案
初中英语：情态动词真题100题第一部分:1-50 真题解析第二部分:51-100练习及答案1．—Mum, it's too hot. May I swim in the lake?—No, you ____. That's too dangerous.A．mustn't B．needn't C．couldn't全面解析：——妈妈，太热了。
我可以在湖里游泳吗？——不，你不能。
那太危险了。
mustn't不能，表示禁止；needn't，不必；couldn't，不能，表示过去的能力；根据问句可知这里是回答请求，结合That's too dangerous.可在这里是表示禁止，不能游泳，故答案为A。
2．—Look! Mr. Smith is standing there.—It be him. He is in New York now.A．can't B．mustn't C．couldn't全面解析：——看！史密斯先生站在那里。
——不可能是他。
他现在在纽约。
A.不可能；B.禁止；C.不能。
根据He is in New York now. 他现在在纽约，可知应是指出“不可能是他”，应用情态动词can't。
故选A。
3．I'd like to make something special for dinner. _____ I borrow your cookery book?A．Should B．Must C．Need D．May全面解析：我想做点特别的晚餐。
我可以借你的烹饪书吗？A.should应该；B.must必须；C.need需要；D.may可以。
根据语境“I borrow your cookery book?”可知此处应指“可以吗？”故选D。
4．—Whose toy car is this?'—It ________ belong to Jim, because he is the only little child at the picnic.A．would B．need C．must D．can全面解析：——这是谁的玩具车？——它一定是吉姆的，因为野餐中只有他一个小孩。
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．—Can children under the age of 12 go to school by electrical bicycle themselves?—No, according to the law, they ________.A．may not B．needn’t C．mustn’t D．shouldn’t【答案】C【解析】【详解】句意：——12岁以下的孩子能自己骑电动自行车上学吗？——不，根据法律，他们不能。
考查情态动词。
may not可能不；needn’t不需要；mustn’t禁止；shouldn’t不应该。
根据“No, according to the law, they...”可知，根据法律，他们禁止骑电动自行车上学。
故选C。
2．—Is that red schoolbag Mary’s?—It ________ be hers. She hates that color.A．can’t B．may C．might D．mustn’t【答案】A【解析】【分析】【详解】句意：——那个红色书包是玛丽的吗？——不可能是她的。
她讨厌那种颜色。
考查情态动词。
can’t不能；may可以；might或许；mustn’t禁止。
根据“She hates that color.”判断，包不可能是玛丽的，表示否定的推测用can’t be。
故选A。
3．—It’s said that nuclear power will be used to produce electricity in Xianning.—However, nuclear power _________ be very dangerous.A．can B．need C．must D．should【答案】A【解析】【分析】【详解】句意：——据说咸宁将利用核能发电。
——然而，核能源可能非常危险。
人教版英语情态动词(完整版)含解析
人教版英语情态动词(完整版)含解析一、选择题1．－Do you think the rain will stop tomorrow?－_____. It has rained for four days. It’s too wet everywhere.A．I hope not B．I don’t think soC．Don’t worry D．I hope so2．—Anna, can you come to my party tomorrow night?—_________, but I have to stay at home because of the flu.A．I’d love to B．Sounds good C．That’s OK D．Why not 3．—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? 4．—I’m afraid I can’t find the key to the car.—______. I’ll wait for you. We have enough time.A．Hurry up B．All rightC．It is up to you D．Hold your horses5．—Our family will go to Hangzhou for a holiday this summer.—________.A．Well done B．I am glad to hear thatC．Best wishes to you D．Have fun6．—I plan to find a part-time job in the coming summer holiday.—________ It will be a totally different experience.A．See you later. B．You’d better not.C．I’m sorry to know that.D．That sounds like fun.7．— 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．—It's a shame to ask you to lend me more money, but. . .— ______ . You really need money to keep on with your education.A．Don't be silly B．Forget it C．No way D．Don't mention it 11．—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 was12．—I’m so sorry to keep you waiting for me so long.— ________!A．With pleasure. B．Don’t say so C．I don’t think so D．It doesn’t matter 13．—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 that14．—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 time15．— 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 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 18．— Shall we go to Nanjing Green Expo Park to enjoy the beautiful flowers this afternoon?—________. Let’s go there by bike.A．I think so B．That’s all right C．My pleasure D．Sounds great 19．—I have got a new job as a presenter in the Wenzhou Radio Station!—________.A．Come on B．Good idea C．Congratulations D．All right 20．—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 21．—Do you like cartoons or scary movies?—_______. They can cheer me up.A．Yes, I do B．No, I don't C．Cartoons D．Scary movies 22．—Excuse me, can you give me some water? The cup is empty.—________A．Go ahead. B．My pleasure C．At your service D．You’d better not. 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．—Susan, will you please go and empty that drawer?— _________ ?A．What for B．What is it C．How is it D．How come 25．—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 .26．—________!—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 27．—All of Mark Twain’s novels are popular.— ________. Especially The Adventures of Tom Sawyer.A．I can’t agree more B．That’s not the case C．That’s not the point D．Don’t mention it 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．— 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 31．—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’t32．—How do you like coffee, Minnie?—It tastes very terrible. ________.A．I have no idea B．I don’t mind it C．I really can’t stand it D．I can’t afford it 33．— Mr. Smith, I won the first prize in the competition.—______ I think you’ll do better and better.A．Congratulations! B．Good idea! C．That’s all right!D．What a shame! 34．—Oh, my love, you say you have ordered a dozen cups of bubble tea (奶茶)?—________A．Agree. B．Forget it. C．I really do. D．Are you kidding me? 35．—He is too short to be a successful basketball player.—________ Every dog has its day.A．I think so. B．It’s hard to say.C．That’s right.D．You’d better not. 36．— May I have a look at the newspaper China Daily?— Certainly. ________A．Thank you. B．It’s a pity.C．Here you are. D．I’d like to. 37．—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. 38．— 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 39．—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.40．—How about buying that coat?—________. It’s too expensive. I can’t afford it.A．That sounds good B．No way C．Good idea D．What a pity 41．—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 42．— Wow, what a good smell! Can I have a piece of cake?— ________A．No way. B．Good idea! C．HeIp yourself. D．What a pity! 43．— Would you mind my turning on the TV? The New Year concert has just begun.— ________. Just go ahead.A．Please don’t B．Better not C．Of course not D．I’m afraid not 44．—Mum, Joe has broken a cup!—________. Accidents always happen.A．Pretty good B．Of course C．It doesn’t matter D．That depends 45．—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.46．— 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 47．— Michael was late for Mr. Smi th’s chemistry class this morning.—________? As far as I know, he never came late to class.A．So what B．Why not C．How come D．Who cares 48．— 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 opposite49．—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. 50．—I love the Internet. I’ve come to know many friends on the net.—________. 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．That’s not the case【参考答案】***试卷处理标记，请不要删除一、选择题1．D【解析】试题分析：I hope not我希望不是，I don’t think so我不认为这样，Don’t worry不要担心，I hope so我希望如此。
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人教版英语英语情态动词易错题集锦-名师教育含答案百度文库一、初中英语情态动词1．— I take the magazine out of the reading room?— I'm sorry you .A. Could; couldn'tB. Must; couldn'tC. Will; can'tD. May; can't【答案】 D【解析】【分析】句意：——我可以把杂志带出阅览室吗？——对不起，你不能。
could 能，可以；must必须；will将；may可以；can能，可以，can't不可以，不能。
此处表示请求许可，用could或者may，由could或者may构成的一般疑问句，肯定回答用yes，主语+can，否定回答用sorry，主语+can't，结合选项，故答案选D。
【点评】考查情态动词的辨析。
注意理解句意，理解选项，根据语境，选出正确的答案。
2．All passengers ______ go through safety check before they take a plane.A. canB. mayC. mustD. could【答案】 C【解析】【分析】句意：所有乘客登机前必须接受安全检查。
A. can能够，表示能力；B. may可以，表示许可；C. must必须；D. could可能，可以。
登机前必须安检。
故选C。
【点评】情态动词词义辨析。
以及can、may、must、could四个词的词义和用法。
3．Look at the sign! It says “No Smoking!” You ________ smoke here. It's dangerous.A. mustn'tB. ought not toC. needn'tD. don't have to【答案】 A【解析】【分析】句意：看这个标志！上面写道“禁止吸烟！“你不能抽烟。
这是危险的。
A.mustn't 禁止，不允许；B.ought not to不应该，不应当；C.needn't不必；D.don't have to 不必。
根据“No Smoking!”可知此处禁止吸烟，故答案为A。
【点评】考查情态动词。
掌握情态动词的意义和用法。
4．Teenagers allowed to drive .A. should not beB. should be notC. not should be【答案】A【解析】【分析】句意：年轻人不应该被允许驾车。
Should是情态动词，其否定表达一般在在后面加副词not，故选A。
【点评】此题考查含有情态动词的被动语态的否定形式。
平时注意记忆情态动词的记忆和用法。
5．— Is this e-dictionary Jack's?— No, it_______ his. His is much newer.A. can't beB. mustn't beC. may beD. should be【答案】 A【解析】【分析】句意：-这个电子字典是杰克的吗？--不可能是他的，他的更新些。
must,can（could）,may（maight）可以表示猜测，must表示肯定猜测，用于肯定句，肯定……，一定……；can’t,表示否定猜测，肯定不……，另外can（could）,may（maight），表示可能性猜测，可能……。
根据后文的依据，可知是否定猜测，故选A6．I can't go with you. I _______ stay at home until my parents come back.A. canB. mayC. mustD. could【答案】 C【解析】【分析】句意：我不能和你一起去。
我必须呆在家直到我父母回来。
A. can能，表示能力；B. may可以，表示许可；C. must必须，强调主观愿望；D. could可以，表示允许、请求。
父母没回来前，我必须待在家。
故选C。
【点评】此题考查情态动词的用法。
7．The girl riding a horse there be Shirley. Her left leg was badly hurt in an accident yesterday.A. needn'tB. may notC. can'tD. mustn't【答案】C【解析】【分析】句意：那边骑马的女孩不可能是雪莉。
她的左腿在昨天的事故中受了重伤。
A.needn't不必；B. may not不可以；C. can't不可能，表示否定的推测；D. mustn't 不准，不允许，表示禁止。
本题表示否定的推测，不可能：can't。
故选C。
8．Harry's been driving all day—— he be tired.A. needB. canC. shallD. must【答案】 D【解析】【分析】句意：哈利已经开了一整天车了——他一定累了。
根据句意可知，开了一整天车，所以推测他累是一定的。
所以用情态动词must。
故选D。
9．Rock music ______ sound popular with the young, but it's not the favor of the aged people.A. mustB. needC. shouldD. may【答案】 D【解析】【分析】句意：摇滚音乐在年轻人中听起来受欢迎，但是它不受上了年龄的人的赞同。
must, 表示猜测时，指把握比较大的肯定猜测，肯定……；need需要；should,应该；may，表示把握比较小的肯定猜测，可能，也许。
结合句意，故选D。
【点评】考查情态动词辨析，注意几个常见情态动词的意思和用法。
10．—Must I clean the classroom now? —No, you_______.A. mustn'tB. can'tC. needn't【答案】 C【解析】【分析】句意：--我必须现在把教室打扫干净吗？--不，你不必。
must I do …?的否定回答是No, you needn't 或者 No , you don't have to 。
根据是否定回答，故选C。
11．—Mum, I play football this afternoon?—Sure, but you finish your homework first.A. may; couldB. can; mustC. can; mustn'tD. may; can't【答案】 B【解析】【分析】句意：－妈妈，今天下午我能踢足球吗？－当然，但是你必须先完成作业。
前句提请求，can,may都可以；后句，由sure可知后句用肯定回答。
Could表示一种委婉的语气；must表示主观愿望：必须。
妈妈要求孩子“必须”先完成作业。
故选B。
【点评】考查情态动词辨析，may表示请求时候的回答用语。
12．—Life is becoming convenient with the Internet.—That's true! Almost everything ______ be done online.A. mustB. couldC. shouldD. can't【答案】 B【解析】【分析】句意：——生活正随着网络变得方便。
——那是真的。
几乎所有的事情可以在网上完成。
A必须，B可以，C将，D不能。
根据 Life is becoming convenient with the Internet. 生活正随着网络变得方便，可知应该是很多事情可以在网上完成，故选B。
【点评】考查情态动词。
注意理解和掌握情态动词的不同用法。
13．——Do you have any plans for this summer vacation? ——I'm not sure. I ___ take a trip to Taiwan.A. mustB. needC. mayD. should【答案】C【解析】【分析】句意:一今天暑假你有什么计划吗?一我还不确定。
我可能去台湾去旅行。
A.必须，一定;B.需要，必要;C.可能;D.应该。
根据句中I'm not sure可知，说话人还没有确定的计划，所以这只是一个可能，应选C。
14．Please don't make so much noise. I ________ hear the speaker very well.A. needn'tB. can'tC. shouldn'tD. mustn't【答案】 B【解析】【分析】句意：请不要发出那么多噪音。
我不能很好地听清楚发言者的话。
needn't不必；can't不能；shouldn't不应该；mustn't禁止。
根据前半句的Please don't make so much noise.可知别人发出了太多噪音，所以他无法听见演讲者的话，故用情态动词can't。
故选B。
【点评】考查情态动词，结合句意和词义做出判断。
15．——You look pretty in green, Kate. ——Thank you. I like green. Green ______give me energy.A. canB. mustC. shouldD. has to【答案】A【解析】【分析】句意:一一凯特，你穿看绿色的衣服很漂亮。
一一谢谢，我喜欢绿色。
绿色给我能量。
A.能，表示能力;B.must必须，强调主观愿望;C.应该，强调责任与义务;D.必须.强调客观要求。
绿色能给我力量，我喜欢。
故选A。
16．You __________ write the poem down. Our teacher will give us a copy soon.A. needn'tB. mustn'tC. shouldn'tD. can't【答案】A【解析】【分析】句意:你不需要把诗抄下来，老师很快会给我们一份。
A.不必;B.不准，禁止，不允许;C.不应该，表示责任、义务;D.不能，表示能力，不可能，表示否定的推测。
老师要给我们一份，所以不必抄写。
故选A。
17．Now all passengers show their ID cards and go through the safety check before they take a train.A. wouldB. mayC. couldD. must【答案】 D【解析】【分析】句意：现在所有的乘客必须出示身份证并通过安检，才能上火车。