中考英语情态动词详细用法归纳及练习含答案

一、选择题1．Please let me ________you if you meet trouble.A．help B．to help C．helps D．helping A解析：A【解析】【详解】句意：如果你遇到困难请让我帮助你。

考查固定搭配。

help动词原形；to help动词不定式；helps动词三单；helping动名词。

分析句子可知，此处用于let sb. do sth.结构中，所以用动词原形，故选A。

2．Don’t ________ your glass too _______.A．fill; full B．fill; filled C．full; full D．full; filled A解析：A【解析】【分析】【详解】句意：不要把你的杯子倒得太满。

考查动词和形容词辨析。

fill填充，动词；full满的，形容词。

本句是否定祈使句，前空需用动词，full是形容词，可排除CD两项。

后句too （太）是形容词，修饰形容词或副词。

根据句意语境，可知选A。

3．Don’t________ in the classroom. It’s important ________ quiet when you study. A．talk, keep B．to talk, keep C．talk, to keep D．to talk, to keep C 解析：C【解析】【详解】句意：不要在教室里交谈。

当你学习的时候保持安静是重要的。

talk交谈，原形；to talk交谈，动词不定式；keep保持；原形；to keep保持，动词不定式。

第一空是否定祈使句，其结构是Don’t+动词原形。

排除BD；It’s important+to do sth.表示做某事是重要的。

排除A。

根据题意，故选C。

【点睛】祈使句的否定结构是以“Don”t＋动词原形”开头.例如：Don”t go there,please．请别去那儿.Don”t be late．不要迟到.4．Mike, __________ make any noise, your father is sleeping.A．not B．don't C．won't D．can't B解析：B【解析】【详解】句意：麦克，不要吵闹，你父亲正在睡觉。

情态动词的用法及专项练习第1 & 2类:词形词的含义例句can ①“能力”②“允许”③“可能性”(0%)④“请求”I can speak English.Can I go to the toilet.It can’t be Susan. She is in Paris. Can you help me?could ①“过去的能力”②“过去的允许”③“可能性”(30%)④“请求”, 比can更客气⑤“建议”⑥“将来的一种可能性”She could speak English When she was 5 years old. Could I borrow your dictionary?It could get much colder in January.Could you please say that again more slowly.We could try to fix it ourselves.I think we could go to war again.be able to “能力”= can, 但比can的时态更具多样性。

can无法表达的时态，用be able to表达。

She will be able to teach English. (一般将来时)She was able to talk when she was 2 years old. (一般过去时)I would love to be able to play the piano. (动词不定式)may ①“请求、允许”(比较礼貌)②“将来的可能性”(50%)③may 在更多的时态中经常May I come in?It may rain tomorrow.第1类：十大情态动词can / could / may / might / must / ought to / shall / should / will / would 第2类：半情态词及充当情态动词的词had better / be able to / have to / used to / need / dare用be allowed to来代替might “较小的可能性”(≤30%)I might move to Canada some day.must ①“必须”(责任、义务)②“可能性”(推测) (100%)③“禁止”(否定式) Everyone must pay taxes.She didn’t arrive. She must be sick.You mustn’t p l ay with fire. It’s dangerous.have to ①“必须、不得不”(客观上不得不做)②多种时态里面代替“must”,因must只有一般现在，但have to 可以有多种时态。

九年级英语情态动词用法总结(完整)含答案一、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．—Jim seems to be in low spirits. ________?—No one liked his plan. All his efforts were useless.A．Guess what B．What about him C．So what D．What happened 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．—Liz, I’d like to take a week’s holiday.—________. We’re as busy as a bee.A．Go ahead B．With pleasure C．Forget it D．That’s right 6．—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? 7．—Here’s your change.—________A．My pleasure. B．Thank you. C．With pleasure. D．No problem. 8．—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.9．—________.—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 now10．—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 thing11．—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 .12．—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 time13．--Would you mind opening the window? It’s too hot.--__________.A．Sorry. I wouldn’t.B．No, of course not.C．It doesn’t matter.D．Yes, please.14．—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. 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．—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 18．—TV says there will be a heavy rain tomorrow.—________. I planned to go climbing with my friend.A．Bad luck B．I hope so C．Good idea D．I don’t mind 19．—I missed the basketball game last Saturday because I had an exam.—________, but it will be repeated on TV.A．Take it easy B．You are lucky C．That’s wonderful D．Never mind 20．—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 21．—I’m sorry I didn’t make it to your birthday party last night.— ________ I know you are busy recently.A．Why not? B．Don’t mention it.C．No way. D．That’s all right. 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．—I’m going hiking this afternoon. Would you like to go wit h me?—______, but I must finish my homework first.A．Sorry, I don’t B．That’s right C．I’d love to D．Not at all 25．—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 that26．— 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 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．—Would you mind if I open the window?—_______.We need fresh air.A．Not at all B．Yes, of course C．You’d better not D．That’s all right 32．—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 33．— 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 34．—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 35．— 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! 36．—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? 37．—I’m so sorry to keep you waiting for me so long.— ________!A．With pleasure. B．Don’t say so C．I don’t th ink so D．It doesn’t matter 38．—Hi, everybody! Here is the music.—________. Let’s dance to the music.A．That’s no good B．Here we go C．That’s a shame D．Have a good time 39．—Why don’t you join in a club to practise speaking English?—________.A．That’s a go od idea B．Never mind C．Yes, please D．Thank you 40．—________!—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 41．—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 42．—I’ll have a chemistry exam tomorrow.—________!A．Well done B．Congratulations C．You’re welcome D．Good luck43．—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．That’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．—We can invite Kate and Paul to Baohe Park with us.—________ I’ll give them a call right now.A．Why not? B．What for? C．What’s up?D．Are you kidding? 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 r ight C．You bet D．I don’t think so 49．—Michael was late for Mr. Smith’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 50．—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.【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。

英语情态动词中考真题含答案解析一、初中英语情态动词1．—Could you go to the bookshop with me? I want to buy The Grass House by Cao Wenxuan.—Sorry, I . I've promised Mum to go home right after school.A. can'tB. couldn'tC. needn'tD. mustn't【答案】 A【解析】【分析】句意：—你能和我去书店吗？我想买一本曹文轩写的《草房子》。

—对不起，我不能去。

我答应我妈妈放学后直接回家了。

在问句中的could表示委婉语气，不是过去式，所以回答时用can't，不能；needn't 不需要；mustn't一定不要，千万别。

结合句意，故选A。

【点评】考查情态动词，回答could提问的时候应使用can。

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．You _____ walk too close to the edge of the path because you might fall and hurt yourself.A. mayB. mightC. needn'tD. musn't【答案】 D【解析】【分析】句意：你不能走得太靠近路的边缘，因为你可能跌倒伤害自己。

人教版中考英语情态动词用法总结(完整)含解析一、选择题1．I ________ hear you clearly. Would you please repeat it?A．mustn’t B．can’t C．needn’t D．shouldn’t 2．Don’t cross the road until the traffic lights turn green. A car_______hit you.A．need B．may C．should D．must3．You ________ be careful with the camera. It costs!A．can B．will C．should D．may 4．—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 5．Sorry, smoking is not allowed here. If you ________ , you will be fined according to the rules. A．can B．will C．may D．must 6．—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 7．—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 8．—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’t9．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 10．—Dad, must we wait until the light becomes green?—Yes, I am af raid we ________. That’s the traffic rule.A．may B．can C．have to D．need 11．Exercise is helpful but it ________ be regular (规律的) exercise.A．must B．may C．can D．need 12．—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 13．—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 14．—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．need15．— Mom, must I clean my room now?— No, you ________. You can do it after dinner.A．needn’t B．mustn’t C．shouldn’t D．can’t16．— 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’t 17．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．—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't19．---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．will20．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 safe!—Sorry. I won’t do it any more.A．not driving B．not to drive C．no driving D．not drive 23．—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 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．should25．You'd better __________ hard from now on, __________ you will fail the exam. A．work; and B．working; or C．working; and D．work; or 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．—Could I join you in the programme?—Sorry, you ________. You are too young.A．shouldn’t B．mustn’t C．can’t D．needn’t28．To avoid ________, we’d better ________ the parents’ meeting onlin e.A．gather; hold B．gathering; hold C．gather; holding D．to gather; to hold 29．— 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 30．—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．shall 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’t32．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．According to the rule, used batteries ________ be dropped in the red bin for harmful wastes. A．may B．would C．should D．might34．You _________ smoke here! Look at the sign. It says "No smoking".A．needn't B．mustn't C．can D．may35．— 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．must36．—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’t37．—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 need; mend D．need; to mend38．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．—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．—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．—In China, many parents complain that their children have to stay up late to do the homework.—Don’t worry. The government has realized the problem. I’m sure there ________ be good newssoon.A．can B．should C．need D．must42．When people are waiting at the zebra crossing, cars and buses ________ wait and let them go first.A．must B．may C．can D．need43．—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．may44．—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 45．Cars ________ give way to walkers on some roads in Binhai, or the drivers will be fined. A．may B．will C．can D．must46．You’ve got an A in the maths test again. You ________ be good at it.A．can B．may C．must D．should 47．—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 48．—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 49．—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 50．—Suzy described every detail of the accident just now.—Her memory ________ be completely back.A．shall B．need C．must D．could【参考答案】***试卷处理标记，请不要删除一、选择题1．B解析：B【详解】句意：我听不清你说什么。

情态动词是初中英语里的一个重要的语法项目，也是全国各省市中考试题的考查热点。

在备战中考时，考生要牢记情态动词的结构和意义以及其表示推测时的用法，多做练习，在实践中加以区分。

中考考查重点：1. 情态动词的意义；2. 情态动词的基本句型；3. 情态动词的基本用法。

情态动词的用法情态动词用法例句can/could 表示能力，意为＂能，会＂I can read this sentence in English. 我能用英语读这句话。

表示许可时，意为＂可以，能够＂，相当于mayShe said that I could use her computer. 她说我可以使用她的电脑。

用于推测，表示可能性，意为＂可能＂，could比can更加不肯定，多用于否定或疑问句The man can’t be our teacher — he has gone to Beijing.那个男人不可能是我们的老师，他去北京了。

There is someone outside — who can it be? 有人在外面，可能是谁呢？【知识拓展】1. can的一般疑问句，肯定回答用Yes, ...can；否定回答用No, ...can’t。

—Can you play the piano? 你会弹钢琴吗?—Yes, I can. 是的，我会。

/No, I can’t 不，我不会。

2. can，could和be able to的区别：can只有现在式和过去式，而be able to可以用于各种时态；can( could)表示能力时，可用be able to代替。

I can(am able to) afford the car. 我能买得起这辆小汽车。

She has been able to come to school. 她已经能去学校了I could(=was able to) drive a car before I left school. 毕业前我就会开车。

初中英情用法（含及答案）考点一： can， may ， must等情在述句中的用法：1. can 的用法：（ 1）.表示能力、可、可能性。

表示能力一般“能、会”，即有种能力，特别是生来具的能力 .如： She can swim fast, but I can’能她t.游得很快，但我不可以。

I can see with my eyes. 我用眼睛看。

could 是 can 的去式。

表示去的能力。

be able to do sth. 经常指努力，花了和力以后才能做到某事。

is/am/are able to do sthwas/were able to do sth.（2） .表示可，常在口中。

如： You can use my dictionary.你能够用我的词典。

（ 3）.表示推，可能性，意“可能”，常用于否认句和疑句中，此can’t“ 不可以能”。

如：Can the news be true? 个信息会是真的？— Can it be our teacher?那个人有可能是我老？— No, it can ’t be our teacher. He is on a visit to the Great Wall不可以.能。

咱老正在游城呢。

【例】— 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 ’ tC.needn ’ tD.wouldn ’t【分析】依据下文“我去那边”可知，“ 不可以能”，can’t表示推[答案] A could 的用法：（1）.can 的去式，意“能、会”，表示去的能力。

如：He could write poems when he was 10. 他十就会写。

（ 2） . could 在疑句中，表示委宛的气，此could 没有去式的意思。

情态动词情态动词又叫情态助动词;它们具有以下特点：⑴它们必须与其他动词连用,即：情态动词＋动词原形表示说话人对所述动作的看法,如需要、可能、意愿或怀疑等;⑵绝大多数情态动词没有人称和数的变化,即第三人称单数不加-s以be和have 开头的情态动词短语除外;⑶在意义上,情态动词具有“多义性”;例：can既可表示能力,又可表示可能、允许等意义;情态动词的基本用法1. can的基本用法：⑴表示体力或智力上的能力,即“能够,会”,可与be able to转换;例：He can speak English. = He is able to speak English.—Can you play basketball— No, I can’t.如果表示将来具备的能力,要用will be able to;例：If I have a good sleep, I will be able to do the problem.⑵表示许可,主要用于口语,书面语一般用may;例：—Can we go home now, please— No, you can’t.You can only smoke in this room.You can’t keep the library books for more than a month.⑶表示“可能”,与may同义,但一般用在疑问句中;例：What can he possibly want在否定句中,否定形式can’t表示推测“不大可能”;例：Anybody can make mistakes.The news can’t be true.与第一、二人称连用时,还可以就可能的解决问题的方式或可能的行为提出建议;在这里,也可用could使语气婉转;例：Can / Could we meet again next week 下周我们可以再见面吗—What shall we do 我们怎么办呢— We can / could try asking Lucy for help.——我们可以请露茜帮忙试试看;You can / could help me with the cooking. 你可以帮我做饭;2. may的基本用法:⑴表示“许可”,用can比较口语化;例：You may / can come if you wish. 如果你想来,你就来;You may not pick flowers in this park. 本公园内不许摘花;may not表示按规定不许可,如果用mustn’t则表示说话人不许可;我可以在这里抽烟吗—;mustn’t表示明确的禁止;⑵;例：It may rain tomorrow. 明天可能会下雨;;注意：如果,通常用例：那会是真的吗他究竟是谁呢⑶注意—Yes, you —No3. must的基本用法:⑴表示必须,强调说话人的主观意志;例：I must go now, or I’ll be late.You must be here by注意：表示“必须“时,must的否定式为或而不是mustn’t;也就是：—Must—Yes, you—No, you例：——No, you .⑵表示推测,一般只用于肯定陈述句,表示非常肯定;例：She didn’t look at me. She must be angry. 她不朝我看,一定是生气了;He is good at English. He must know the word. 他英语好,准知道这个词;You must be Mr. Jones. 想必您就是琼斯先生吧;4. have to的基本用法：have to可视为情态动词,但它与其他情态动词在用法上稍有不同;其他情态动词没有人称和数的变化,而have to却有人称和数的变化,要视主语的不同而变化;例：I / You / We / They have to….He / She / It has to….You don’t have to….意思是“必须,不得不”;have to强调客观需要;例：Sorry, I have to leave now. 对不起,现在我得走了;I’ve got to go to a meeting. 我得去参加一个会议;Will he have to work deep into the night 他将不得不工作到深夜吗5. need的基本用法：need的基本词义是“需要”,它既可作情态动词,又可作实义动词;⑴ need用作情态动词时,只用于否定句和疑问句;它只有一种形式,后接动词原形;例：I don’t believe you need worry. 我相信你没有必要焦急;—Need we go so soon我们需要这么早就去吗— Yes, we must. / No, we needn’t.是的,必须;／不,不必;So I needn’t tell him, need I 所以我不需要告诉他,对吧请比较以下两句话的不同意思：You needn’t buy the coat. 你没有必要买那件外衣;你还没买You needn’t have bought the coat. 你没有必要买这件外衣的;而你⑵My watch needs mending/to be mended. 我的手表需要修理了;We don’t need to work today. = We needn’t work today.Does he need to go right now = Need he go right now6. had better的基本用法：had bette r常略作’d better;现代语法认为它是一个助动词,因为它后接不意思是“最好做某事；还是做某事比较好”;get some sleep. 你最好睡一会儿;You’d better not do that again. 你最好别再做那件事;What had we better do now 我们现在怎么做才好呢, should, would, might表示推测：①.must多用于肯定句中表示把握性极大的推测,意思为“一定、肯定”;如: You have worked hard all day. You must be tired. 你已辛苦工作一整天了,一定累了;The book must be his. His name is on the cover. 这本书一定是他的,封面上写着他的名字;注意 must不表推测时,在肯定句中意思为“必须强调内在的职责”,在否定句中意思为“不许、禁止”,以它开头的疑问句否定回答常用needn’t或don’t doesn’t have to;如:We must obey the traffic rules. 我们必须遵守交通规则;Cars mustn’t be parked here. 此处严禁停车;—Must we hand in the papers this week 我们必须本星期交论文吗—No, you needn’t. 不,你们不必本星期交;②. can / could多用于否定句、疑问句或间上没有差别;用can时不相信的程度更强一些,如:The man under the tree can’t be Tom人不可能是Tom,他已经去英国了;Can it be true that he was fooled by a five-year-old boy 他被一个五岁的孩子愚弄了,这能是真的吗Could this be an excuse 这会不会是个借口How can you be so careless 你怎么这样粗心③.may / might多用来表示把握性不大的推测,意思为“也许、可能”, might比;注意区分“不可能”与“可能;如:Mr. Wang may know Professor Li’s telephone number.王先生也许知道李教授的电话号码;This might be the key Tom has been looking for.这可能就是汤姆一直在找的钥匙;She may not be there today. 今天她可能不在那儿;一、典型例题中考链接1．—Who is the man over there Is it Mr. Li— No, it ______ be him. Mr. Li is much taller.A. mustn’tB. may noC. can’tD. needn’t2．—Must I go with them tomorrow— No,you ______.A. mustn'tB. shouldn'tC. needn'tD. can't3．—______ I take some photos in the hall— No, you ______.A. Can, needn’tB. Must, mustn’tC. Could, won’tD. May, m ustn’t4．—Dad, must I finish my homework today—No, you ________. You may do it tomorrow.A. needn’tB. mustn’tC. don’tD. won’t5．—The lake is said to be dry. Is that true—It , some kids are swimming in it.A. must be trueB. can’t be trueC. may not be true6．—What is your mother going to do this Saturday—I’m not sure. She _____ go to see my grandmother.A. canB. mustC. may7．—Susan has bought a large house with a swimming pool.—It ______ be very expensive. I never even dream about it.A. mustB. mightC. can’tD. shouldn’t8．—Listen Is Professor Johnson giving a report in the hall —No, it be him. He has gone to Japan.A. needn’tB. may notC. mustn’tD. can’t9．—Let’s go to the West Hill Park by taxi.—Oh, it is not far away from here. We _______take a taxi.A. couldn’tB. mustn’tC. needn’tD. can’t10．—Can you play the piano—Yes, I _______. I often practice it on weekends.A. needn’tB. needC. can’tD. can三、课后练习一、用can, may, must, need, have to, had better的适当形式填空：1.You ________________ return the library book on time.2.I ______________ not find the way to the hospital. _______________ youshow me the way3.—________________ I finish the work right now— No, you ________________ not. You ____________ do it later.4.He said he ________________ not come tonight.5.Her mother was ill. She ________________ stay at home and look afterher.6.It’s time for class. You ________________ stop playing football oryou __________be late for class.7.We ________________ start right now, or they would get there first.8.The cloud is lifting, so it ________________ not be a rainy daytomorrow.二、选择填空1.—Do we have to finish our homework this afternoon—Yes, you ________.A. mustB. canC. mayD. need2. —Must I be in hospital for a week, Doctor—No, you . You can go back home tomorrow.’t B.needn’t C. must3. The desk is not dirty. You _______clean it.A. mustn’tB. shouldn’tC. needn’t C. can’t4. —May I watch TV for a while—No, you _______. You have to finish your homework first.A. shouldn’tB. needn’tC. mustn’tD.won’t5.—Is Jessica giving us a speech this evening—No, it ________be her. She________ to Japan.A. mustn’t; has goneB. mustn’t ;has beenC. can’t ;hasgone D. can’t ;has been6. It’s the library So you________ know shouting is no t allowed here.A. canB. mustC. needD. may7. Boys and girls, don’t forget your report . It ______ today.A. can’t finishB. can’t be finishedC. should finishD. should be finished8.—Mr Smith must have been to your home this morning.—No, he ______ ,because he didn’t know my address.A. couldn’tB. can’tC. mustn’tD. may not9. —Must I mop up the window now—No, you________.’t B. can’t C. shouldn’t D. mustn’t10. —Is Lucy knocking at the door—No. It ________ be Lucy. She is in Japan now.A. needn’tB. mustC. can’t11. —Another cup of coffee—No, thanks. I _____ be off. Mary is waiting for me.A. canB. mayC. mustD. might12. —I’m a little tired. Let’s go to t he zoo by taxi.—We take a taxi. It’s not far from here.A. can’tB. mustn’tC. couldn’tD.needn’t13. If the traffic light is red, you ________ cross the road. It’s very dangerous.A. don’tB. mustn’tC. needn’tD.wouldn’t14. —Must I finish watering the flowers now—No, you________.A. mustB. won’tC. needn’tD. can’t15. —I can’t give up smoking, doctor.—For your health, I’m afraid you ________.A. mayB. canC. have toD. must。

中考语法复习：情态动词讲解及提升练习一．定义：情态动词主要用于表示说话人的态度和看法。

情态动词不能单独使用必须与动词原形一起构成谓语，其否定式是在情态动词后加否定词not。

一般疑问句则将情态动词提至句首。

二、基本形式：三基本用法1. can 的用法1)表能力can表能力时意味着凭体力或脑力或技术等可以无甚阻力地去做某事。

I can climb this pole. 我能爬这根杆子。

He is only four , but he can read. 他只有4岁，但已认得字了。

Fire can’t destroy gold. 火烧不毁金子。

2)表可能性多用于否定与疑问结构中，但也可用在肯定句中。

Can the news be true? 这消息可能是真的吗？It can’t be true. 它不可能是真的。

What can he possibly mean? 他可能是什么意思？3)表示允许（和may意思相近）常见于口语。

Can (May) I come in ? 我能进来吗？Can I smoke here ? 我可以在这里抽烟吗？2.could的用法1)表过去的可能和许可，Father said I could swim in the river. 爸爸说我可以在河里游泳。

2)表过去的能力I could swim when I was only six. 我刚六岁就能游泳。

3)表“允许”。

可表示委婉客气的提出问题或陈述看法,不是can的过去时态。

---Could I use your bike? ---Yes, you can./No, you can’t.注意：be able to 表示能力，意为“能够做成某事”，相当于can 的用法，但是有区别：can泛指一般的能力；be able to 则主要指成功做了某件事的能力。

3. may（might）的用法1)表示请求、可以、允许。

You may drive the tractor. 你可以开那台拖拉机。