外研版英语英语情态动词用法总结及答案解析百度文库

初中英语情态动词详细用法归纳情态动词有具体的词义，但也同助动词一样，需要与其他词语一起构成句子的谓语，另外情态动词没有人称和数的变化，情态动词后必须跟动词原形。

1. can 的用法：（1）.表示能力、许可、可能性。

表示能力时一般译为“能、会”，即有种能力，尤其是生来具备的能力，此时may 和must 均不可代替它。

如：She can swim fast, but I can’t . 她能游得很快，但我不能。

I can see with my eyes. 我用眼睛看。

（2）.表示许可，常在口语中。

如：You can use my dictionary. 你可以用我的字典。

（3）.表示推测，意为“可能”，常用于否定句和疑问句中，此时can’t 译为“ 不可能”。

如：Can the news be true? 这个消息会是真的吗？—Can it be our teacher?那个人有可能是我们老师吗？—No, it can’t be our teacher. He is on a visit to the Great Wall.不可能。

咱们老师正在游览长城呢。

【例题】—I think Miss Gao must be in the library. She said she would go there. —No. She __be there, I have just been there. A.can’t B.mustn’t C.needn’t D.wouldn’t【解析】根据下文“我刚去过那儿”可知，应为“ 不可能”，can’t 表示推测[答案] A2. could的用法：（1）.can的过去式，意为“ 能、会”，表示过去的能力。

如：He could write poems when he was 10. （2）. could 在疑问句中，表示委婉的语气，此时 could 没有过去式的意思。

如:Could you do me a favour? 你能帮我个忙吗？—Could I use your pen? 我能用一下你的钢笔吗? —Yes, you can.可以。

英语情态动词含答案解析一、情态动词单项选择题1．—You ________? It’s dangerous!—Yes, Mr. Smith!A．must B．could C．mustn’t D．couldn’t【答案】A【解析】【分析】【详解】句意：——你偏要这样吗？太危险了！——是的，史密斯先生！考查情态动词。

must表偏要，非得；could能够，可以；mustn’t不能，表禁止；couldn’t 不可能，表推测。

根据“ It’s dangerous”可知，史密斯先生是反问的语气。

故选A。

2．—I wonder if these are Danny’s glasses?—They ________ be Danny’s. He doesn’t wear glasses.A．may B．can’t C．must D．mustn’t【答案】B【解析】【分析】【详解】句意：——我想知道这是不是丹尼的眼镜？——它们不可能是丹尼的。

他不戴眼镜。

考查情态动词。

may可能；can’t不可能；must必须；mustn’t禁止。

根据下文“He doesn’t wear glasses”可知，此处表否定推断，故A、C选项可排除。

mustn’t意为“禁止”，不表推测，D选项可排除。

故选B。

3．We ________ breathe the same breath and share the same future as Chinese people. A．might B．should C．could D．would【答案】B【解析】【详解】句意：我们要同中国人民同呼吸、共命运。

考查情态动词辨析。

might可能；should应该；could能够；would将。

根据“breathe the same breath and share the same future as Chinese people”可知，应该与中国人民共命运，故选B。

英语情态动词用法总结(完整)一、单项选择情态动词1．--- Difficulties always go with me!--- Cheer up! If God closes door in front of you, there be a window opened for you. A．must B．wouldC．could D．can【答案】A【解析】【详解】考查情态动词辨析。

句意：——困难总是伴随着我！——高兴点! 如果上帝在你面前关上了门，一定有一扇窗户为你打开。

A. must必须；B. would将要；C. could能，会；D. can能，会。

must表示对现在的状态推测时，意为“一定”，表示可能性很大的推测。

符合语境。

故选A。

【点睛】1) must用在肯定句中表示较有把握的推测，意为"一定"。

2) must表对现在的状态或现在正发生的事情的推测时， must 后面通常接系动词be 的原形或行为动词的进行式。

3) must 表示对已发生的事情的推测时，must 要接完成式。

4) must表示对过去某时正发生的事情的推测，must 后面要接完成进行式。

5) 否定推测用can't。

本句中的。

must表示对现在的状态推测时，意为一定，表示可能性很大的推测。

符合第2点用法。

2．Paul did a great job in the speech contest. He many times last week.A．need have practised B．might practiseC．must have practised D．could practise【答案】C【解析】【详解】考查情态动词。

句意：保罗在演讲比赛中表现得很好。

他上星期一定练习了很多次。

must have done是对过去发生的动作最有把握的猜测，意思是“一定”。

故C选项正确。

3．He is a bad-tempered fellow, but he ________ be quite charming when he wishes.A．shall B．shouldC．can D．must【答案】C【解析】【详解】考查情态动词辨析。

情态动词的用法（附练习及参考答案）情态动词情态动词有can (could), may (might), must, have to, shall (should, will (would), dare (dared), need (needed), ought to 等。

情态动词无人称和数的变化；不能单独使用，必须与其后的动词原形构成谓语。

一、情态动词的基本句型肯定句：主语+情态动词+动词原形+......You can sleep here.否定句：主语+情态动词+not+动词原形+......You can’t sleep here.疑问句：情态动词+主语+动词原形+......Can I sleep here.二、情态动词的意义must“必须”; can/could“能，会”; may/might “可以”; should“应该”; would“愿，要”; have to“不得不”; need“需要”can 表示能力，意为―能会，表示推测，意为―可能，常用于否定句和疑问句中表示请求，允许，意为―可以could 是can 的过去式，意为―能、会，表示过去的能力在疑问句中表示委婉请求may 表示请求、许可，意为―可以表示推测，常用于肯定句中，意为―可能、也许might 是may的过去式,表推测，常用于肯定句中，意为―可能、也许must 表示主观看法，意为―必须、应该，表有把握的推测，用语肯定句Need \表示需要、必须，主要用于否定句和疑问句中dare 表示敢于，主要用于否定句和疑问句中should 意为―应该，表示要求和命令表示劝告、建议had better 意为―最好，表示建议used to意为―过去常常，表示过去的动作、行为考点一情态动词情态动词有具体的词义，但也同助动词一样，需要与其他词语一起构成句子的谓语，另外情态动词没哟人称和数的变化，情态动词后必须跟动词原形。

三、情态动词的基本用法1. can 的用法（1）表示能力、许可、可能性。

外研版完整版英语情态动词用法总结(完整)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．—Could I join you in the programme?—Sorry, you ________. You are too young.A．shouldn’t B．mustn’t C．can’t D．needn’t4．To avoid ________, we’d better ________ the parents’ meeting online.A．gather; hold B．gathering; hold C．gather; holding D．to gather; to hold 5．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’t6．—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’t7．—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．should8．—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’t9．Sorry, smoking is not allowed here. If you ________ , you will be fined according to the rules. A．can B．will C．may D．must10．We shouldn’t throw any objec ts 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．—Do we have to finish this today?—Yes, you ________ . Today is the last day.A．would B．may C．can D．must12．You'd better __________ hard from now on, __________ you will fail the exam. A．work; and B．working; or C．working; and D．work; or 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．I ________ hear you clearly. Would you please repeat it?A．mustn’t B．can’t C．needn’t D．shouldn’t15．A lot of online resources ________ be used either by teachers at school or parents at home.A．can B．should C．need D．must 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．We’ve discussed e very 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．may18．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 19．—Ready? Let’s get started, Martin.— Swimming? I just ________ get used to it in winter.A．can’t B．needn’t C．mustn’t D．shouldn’t 20．—Be careful! Fire ________ be dangerous sometimes.—OK. I will put it out right away.A．mustn’t B．should C．can D．needn’t 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．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．need26．— 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’t29．—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 30．—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．need31．A hard-working man ________ become a great scientist, but a great scientist ________ be a hard-working man.A．can’t; can B．may not; must C．can’t; must D．may not; can 32．—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．can33．Cars ________ give way to walkers on some roads in Binhai, or the drivers will be fined. A．may B．will C．can D．must34．Mr. Black ________ be at home now. He went abroad on vacation last Friday.A．can’t B．mustn’t C．needn’t D．shouldn’t 35．—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 36．—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 37．—Who’s the man over there? Is that Mr. Black?—It ________ be him. Mr. Black is much taller than that man.A．may B．must C．can’t D．mustn’t38．You ________ drive after drinking alcohol(酒). It’s against the law.A．mustn’t B．needn’t C．couldn’t D．wouldn’t 39．—Who’s singing next door? Is it Miss Wang?—It ________ b e her. She’s having the board meeting.A．can’t B．shouldn’t C．mustn’t D．needn’t40．— 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．shouldn’t C．mustn’t D．can’t【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。

英语情态动词含答案解析一、情态动词单项选择题1．—What are you going to do tomorrow?—I’m not sure. I ________ make a trip to Hangzhou with my girl friend.A．may B．can C．will D．must【答案】A【解析】【详解】句意：——你明天打算做什么？——我不确定。

我可能和我的女朋友去杭州旅行。

考查情态动词。

may可能；can能；will将要；must必须。

由“I’m not sure.”我不确定，可知这里表示“可能去旅行”，用may表示“可能性”的推测。

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．—We’ve got everything ready for the picnic.—Do you mean I ________ bring anything with me?A．can’t B．needn’t C．couldn’t D．mustn’t【答案】B【解析】【详解】句意：——我们已经为野餐做好了一切准备。

——你的意思是我不需要带任何东西吗？考查情态动词。

can’t不能；needn’t不需要；couldn’t不能；mustn’t不允许。

根据上句说已经准备好了一切，可推测说话者的意思是不需要带任何东西了。

故选B。

4．Our teacher often suggests we ________ on both sides of the paper.A．write B．writes C．writing D．to write【答案】A【解析】【详解】句意：我们老师经常建议我们在纸的两面写字。

情态动词一、一些情态动词的常见用法1. can和may都可表示允许。

如：Can / May I take the book out?2. would和used to都可表示“（过去）常常”，但“would +动词原形”单纯表示过去经常做某事，而“used to +动词原形”表示过去常常做某事而现在不做了。

如：Bob would always turn and wave at the end of the street.I used to smoke, but I gave up a couple of years ago.3. may, might, could, must都可表示肯定推测，其中，might语气最弱，must语气最强。

must表推测时，否定句和疑问句中用can。

如：It may or may not rain.I'm not sure I'll go to Jeff 's Party. I might go to the concert instead.It could cost your life if you are not careful.You must be Mr. Smith. I was told to pick you up.The girl riding the bike can't be Mary. She's in New York.There's someone outside. Who can it be?二、一些情态动词的特殊用法1. should表示惊异，意为“竟然”。

如：It wasn't right that such near neighbours should not know one another.2. must表示“偏要，硬要”。

如：Must you worry her with questions, just when she's busy cooking?3. shall用于陈述句中，表示许诺、威胁、决心、规定等。

英语情态动词附答案附答案含解析一、选择题1．You'd better __________ hard from now on, __________ you will fail the exam. A．work; and B．working; or C．working; and D．work; or 2．Don’t cross the road until the traffic lights turn green. A car_______hit you.A．need B．may C．should D．must 3．—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．need4．— 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．can5．—I don’t care what people think.—Well, you _______ . Some opinions are worth weighing.A．should B．might C．could D．would6．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 7．You ________ be careful with the camera. It costs!A．can B．will C．should D．may 8．—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’t 9．—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’t 10．—There is a knock at the door.—It ________ be my mom. She always comes back home at this time.A．may B．may not C．must D．can’t11．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．need 12．—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 13．— 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．may14．— The sandstorm in Beijing is so serious this year.— Yes, I wonder when we ________ worry about the air we breathe.A．can’t B．mustn’t C．needn’t D．shouldn’t 15．—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 16．It’s amazing that the pen ________turn voice into text with few mistake s.A．can B．must C．may D．need17．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 18．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 19．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．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．should22．My bike was broken yesterday，so I____walk home．A．might B．had to C．must D．could 23．—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 24．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 25．—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．need26．— 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．—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．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’t29．—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．must n’t I;mustn’t D．needn’t I;mustn’t30．— 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 31．—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．shall32．A hard-working man ________ become a great scientist, but a great scientist ________ be a hard-working man.A．can’t; can B．may not; must C．can’t; must D．may not; can 33．— 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．must 34．—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’t 35．—Suzy described every detail of the accident just now.—Her memory ________ be completely back.A．shall B．need C．must D．could36．—Is that Mr Zhou?—It ________ be him. He has gone to Beijing.A．can B．may C．can’t D．shouldn’t 37．—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．should38．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 39．—Could I join you in the programme?—Sorry, you ________. You are too young.A．shouldn’t B．mustn’t C．can’t D．needn’t 40．—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．need41．— 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．shouldn’t C．mustn’t D．can’t42．When people are waiting at the zebra crossing, cars and buses ________ wait and let them go first.A．must B．may C．can D．need 43．—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．need44．—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．may45．—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 46．Look at the floor, Tom! ________ you watch TV while having a meal?A．Should B．Could C．Must D．May 47．—Excuse me. I haven’t finished reading the book yet. May I keep it a bit longer?— Sorry, you ________. You must return it on time.A．needn’t B．can’t C．won’t D．shouldn’t 48．You’ve got an A in the maths test again. You ________ be good at it.A．can B．may C．must D．should49．Mr. Black ________ be at home now. He went abroad on vacation last Friday.A．can’t B．mustn’t C．needn’t D．shouldn’t 50．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．need【参考答案】***试卷处理标记，请不要删除一、选择题1．D解析：D【详解】句意：你最好从现在开始努力学习，否则你考试会不及格的。