【英语】英语情态动词专项习题及答案解析及解析

【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。

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】高三英语情态动词专项训练100(附答案)及解析一、单项选择情态动词1．he law is equally applied to everyone. No one _______ be above it.A．shall B．mustC．may D．need【答案】A【解析】【详解】考查情态动词。

句意：法律面前人人平等。

没有人能凌驾于法律之上。

A. shall用于第二、第三人称，则含有命令、警告、允诺或威胁的语气。

B. must（必须，一定）用于肯定句。

C. may（可以，能够）表允许时一般不与第三人称连用。

D. need (表示没有必要或询问是否有必要) 需要；故选A。

2．Frankly speaking, I am not sure whether I ________ this in the old days with that kind of equipment, which looks quite odd and ridiculous.A．should have done B．need have done C．would have done D．must have done 【答案】C【解析】【详解】考查情态动词+have done。

句意：坦率地说，我不确定在过去我是否会用这种设备做这件事，这看起来很奇怪和可笑。

A. should have done表示本应该做某事，而实际上没有做某事；B. need have done表示本来需要做某事而没有做；C. would have done虚拟语气，表示对过去事情的假设，意思是“本来会做”；D. must have done表示对过去事情的肯定推测，译成“一定做过某事”。

由“in the old days”可知，本句表示对过去事情的假设。

故选C项。

3．Most of the top leaders expressed a common desire at the UN conference, ______ that different cultures ______ coexist with tolerance.A．the one ; must B．the one ; should C．one ; must D．one ; should【答案】D【解析】【详解】考查替代和情态动词。

英语情态动词含答案解析一、情态动词单项选择题1．It’s quite cold outside. You’d better ________ the windows or the door.A．open B．not to open C．don’t open D．not open【答案】D【解析】【详解】句意：外面很冷。

你最好不要打开窗户或门。

考查固定句型，open v. 开。

had better (not) do sth.最好(不)做某事，根据“It’s quite cold outsi de.”可知应该是最好不要开窗户或门，故选D。

2．—I cannot find my pen. ________ I borrow yours?—Sure.A．Can B．Must C．Should D．Would【答案】A【解析】【详解】句意：——我找不到我的钢笔。

我可以借你的吗？——当然。

考查情态动词辨析。

can可以；must必须；should应该；would将。

根据“I borrow yours”可知，此处应用can表请求允许，希望能借对方的钢笔用一下，故选A。

3．—Is that Miss Liu over there?—No. It ________ be her. She has gone to the USA．A．mustn't B．can't C．won't D．needn't【答案】B【解析】【分析】【详解】句意：——是刘小姐在那边吗？——不是。

那不可能是她。

她去美国了。

考查情态动词。

mustn’t不准；can’t不可能；won’t将不；needn’t没必要。

根据“She has gone to the USA她去美国了”可知那不可能是刘小姐，应用“can’t”表示否定推测。

故选B。

4．—Look, the lady in red ________ be our English teacher.—No, she________be. She is in the office now.A．must; can’t B．can; mustn'tC．may; mustn’t D．shall; can’t【答案】A【解析】【详解】句意：——看，穿红衣服的那位女士一定是我们的英语老师。

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”。

英语情态动词含答案解析一、情态动词单项选择题1．We ________ see which way to go if the stars do not twinkle（闪耀）so.A．can not B．should not C．must not D．need not【答案】A【解析】【分析】【详解】句意：如果星星不这样闪烁，我们就不能看见往哪个方向走。

考查情态动词。

can not不能；should not不应该；must not不必、不允许；need not不需要。

根据“if the stars do not twinkle（闪耀）so.”结合“We … see which way to go”，可知如果星星不这样闪烁，我们就不能看见往哪个方向走，因此用can not“不能”，故选A。

2．—I cannot find my pen. ________ I borrow yours?—Sure.A．Can B．Must C．Should D．Would【答案】A【解析】【详解】句意：——我找不到我的钢笔。

我可以借你的吗？——当然。

考查情态动词辨析。

can可以；must必须；should应该；would将。

根据“I borrow yours”可知，此处应用can表请求允许，希望能借对方的钢笔用一下，故选A。

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。

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。

英语情态动词含答案解析一、情态动词单项选择题1．It’s raining all day, so I _________ stay at home.A．must B．have to C．must to D．can【答案】B【解析】【分析】【详解】句意：整天都在下雨，所以我不得不待在家。

考查情态动词。

must必须（主观上）；have to不得不（客观上）；must to错误结构；can 能。

根据“It’s raining all day”可知这是客观条件下“不得不待在家”。

故选B。

2．We teenagers ________ have dreams. With dreams and hard work, anything amazing________ be created.A．may; can B．might; should C．should; can D．must; has to【答案】C【解析】【分析】【详解】句意：我们青少年应该有梦想。

有梦想和努力，任何惊人的事都能被创造。

考查情态动词。

may可能；can能够；should应该；might可能；has to不得不；must必须。

第一个空表示“应该”，用should；第二个空表示能力，用can。

故选C。

3．—Have you heard about the temperature of the earth will rise to 45℃ in 2020?—Don’t worry! The news ________ be true.A．must not B．needn’t C．may not D．will not【答案】C【解析】【详解】句意：——你听说过2020年地球温度将上升到45摄氏度吗？——别担心！这消息可能不是真的。

考查情态动词。

must not一定不要，表禁止；needn’t不需要；may not可能不；will not将不会。

【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”。

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)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(含答案和解析)一、选择题1．Our Chemistry teacher always tells us we ________ be too hardworking before the exams. A．mustn’t B．shouldn’t C．needn’t D．can’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．—Do we have to finish this today?—Yes, you ________ . Today is the last day.A．would B．may C．can D．must4．Sorry, smoking is not allowed here. If you ________ , you will be fined according to the rules. A．can B．will C．may D．must5．—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．need6．Hurry up, or we ________ miss the beginning of the film.A．should B．must C．may D．have to 7．—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 8．—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 not9．You ________ be careful with the camera. It costs!A．can B．will C．should D．may10．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．need11．You ________ drive after drinking alcohol(酒). It’s against the law.A．mustn’t B．needn’t C．couldn’t D．wouldn’t 12．—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．need 13．Exercise is helpful but it ________ be regular (规律的) exercise.A．must B．may C．can D．need14．A lot of online resources ________ be used either by teachers at school or parents at home. A．can B．should C．need D．must 15．—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．shall 16．Please don't make so much noise. I ________ hear the speaker very well.A．needn't B．can't C．shouldn't D．mustn't 17．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 18．—Shall we go camping this summer holiday?—Nothing________be better.A．should B．could C．must D．may19．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 20．—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．should 21．—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．may22．You _________ smoke here! Look at the sign. It says "No smoking".A．needn't B．mustn't C．can D．may 23．—Must I finish all my homework today, Mum?—No, you ________, my dear. You can finish some tomorrow if you like.A．needn’t B．shouldn’t C．can’t D．mustn’t24．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．may25．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 26．— Mum, why do I have to wash hands so many times a day?—You ________ be too careful, for your health.A．can’t B．mustn’t C．may not D．needn’t 27．—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．need28．I think all the students love the weekends because, to them, they ________ get up early on Saturdays or Sundays.A．mustn’t B．don’t need C．needn’t D．can’t 29．—Who’s singing ne xt 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’t 30．— 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．shoul dn’t C．mustn’t D．can’t 31．According to the rule, used batteries ________ be dropped in the red bin for harmful wastes. A．may B．would C．should D．might 32．—Seventy dollars for such a dress! You ________ be joking!—I’m serious. It’s made of silk from Hangzho u.A．must B．need C．will D．can33．—Must we stop the Japanese government discharging nuclear waste water (排放核污水) into the Pacific Ocean?—________. Because everyone should protect our earth and it is bad ________ us to eat the polluted seafood and drink the waste water.A．Yes, we can; of B．No, we mustn’t; of C．Yes, we must; for D．No, we needn’t; for 34．Look at the floor, Tom! ________ you watch TV while having a meal?A．Should B．Could C．Must D．May35．Cars ________ give way to walkers on some roads in Binhai, or the drivers will be fined. A．may B．will C．can D．must 36．—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 37．—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．need38．—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 not39．—I don’t care what people think.—Well, you _______ . Some opinions are worth weighing.A．should B．might C．could D．would40．—Is it usually warm in Yancheng in May?—Yes. But it _______ be rather cold sometimes.A．must B．should C．would D．can【参考答案】一、选择题1．D解析：D【详解】句意：我们的化学老师总是告诉我们考试前怎样用功都不为过。

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。