初中英语语法：情态动词讲解及练习
初中英语语法之表推测情态动词用法和练习
初中英语语法之表推测情态动词用法和练习英语中有不少情态动词都可以表示推测，其语气有强有弱，表示的可能性有大有小，现将它们的用法归纳如下：1. 接近100%的可能这当然只有must才具有这么高的可能性，它的意思是“一定”“肯定”，所作出的推测几乎接近事实。
如：That hat must be Tom’s. 那帽子一定是汤姆的。
He must be coming by bus. 他一定是乘公共汽车来。
2. 很有可能表示可能性较大的情态动词主要有may, should, ought to，它们大致相当于汉语的“可能”“应该”“按理会”。
如：She should [ought to] be here soon. 她应该很快就到。
We may be buying a new house. 我们可能要买一座新房子。
3. 一般性的可能在所有表示推测的情态动词中，might和could所表示的可能性最小，由于它们的语气较委婉，较不确定，所以往往相当于汉语的“可能”“也许”“说不定”等。
如：He might be waiting for you. 他可能在等你。
She might not like the idea. 她或许会不赞成这个想法。
We could all be millionaires one day. 我们有一天可能都成为百万富翁。
4. 理论上的可能性表示理论上的可能通常是用can，且可以用于肯定句中。
如：Food poisoning can cause death. 食物中毒可导致死亡。
This kind of thing can happen every now and then. 这种事情是随时可能发生的。
New England can be very hot in September. 新英格兰有时9月份很热。
所谓理论上的可能性，就是指仅从理论上去考虑其可能性，至于实际情况如何，则不作考虑，比如说“食物中毒可导致死亡”，这只是理论上的一种推断，至于某人某次食物中毒了，他是否会死亡，则不在考虑之列，所以说，这种推测是非常“宏观”的！5. 表示对过去情况作推测如果表示对已经发生的情况作推测，不能用“情态动词+动词原形”，也不能用“情态动词的过去式+动词原形”，而是要使用“情态动词+动词完成式”。
人教版英语初中英语分类练习——英语情态动词含解析百度文库
人教版英语初中英语分类练习——英语情态动词含解析百度文库一、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．—Where is Monica? I can't find her anywhere.—She be in the library. She loves reading books when she is free.A. mustB. needC. can't【答案】 A【解析】【分析】句意：——莫妮卡在哪？我到处都找不到她。
——她肯定在图书馆，她喜欢空闲时看书。
A肯定，肯定句中表示推测，B需要，C不可能，否定句中表示推测，根据 She loves reading books when she is free ，可知是肯定句表示推测，故选A。
【点评】考查情态动词，注意情态动词表推测的用法。
3．—Shall we meet at the station at 9 a.m.?—In fact we ______. The train ______until 11a.m.A. needn't; will leaveB. needn't; won't leaveC. mustn't; leavesD. mustn't; doesn't leave【答案】 B【解析】【分析】句意：—我们上午9点在车站见面好吗？—事实上我们不需要。
八年级英语下册 语法之情态动词讲解与练习(无答案) 人教新目标版
情态动词情态动词：表示说话人语气的单词。
不能单独做谓语，只能和动词原形（有时候也说不加to的动词不定式）一起构成谓语。
1、情态动词没有人称和数的变化，情态动词后面跟的动词须用原形，否定式构成是在情态动词后面加 "not"。
eg: She can sing an English song.We should do our homework right now.I can’t speak English very well.2、情态动词的用法（1）Can的用法①表示体力或脑力方面的“能力”Can you drive?你会开车吗？Can you speak English?你会说英语吗？②表示客观条件允许You can skate on the lake.(The ice is thick enough.)你可以在湖面上滑冰了（冰层够厚的了）The airplane can take off now.(The storm has stopped.)飞机可以起飞了（暴风雨停了）You can’t park your car here.你不能在此停车例1：The work is too hard for him. He __________ finish it on time.A. can'tB. mustn'tC. shouldn'tD. needn't③can用在否定句和疑问句中时，有时表示说话人的怀疑，惊异、猜测或不肯定：no, no, it can’t be true.不，不，这不可能是事实How can you be so careless!你怎么会这么粗心He can’t be in the library。
他现在不会在图书馆例2：—Who’s singing in the next room?—It ____ be Mary. She has gone to New York.A.can’tB. mustC. shouldn’tD. can注意： can 和 be able to在表示能力这一点是同义词，通常可以通用I can speak English.=I am able to speak English.但在针对过去情况时，两者的区别意义明显，不可混用。
最新初中英语语法知识—情态动词的技巧及练习题附解析
一、选择题1．—Can you come to my party on Saturday afternoon?—Sorry, I can’t. I ________ meet my friends.A．can’t B．might have to C．needn’t2．Look at the sign! It says “No Smoking!” You ________ smoke here. It’s dangerous. A．mustn’t B．ought not to C．needn’t D．don’t have to 3．The designer has tried every possible way to make the robot light, so you _____ worry about its weight.A．must B．may C．can’t D．needn’t4．—Is that Kate’s green bike?—It ____________be hers. She likes pink.A．can’t B．could C．mustn’t D．might5．All passengers_____ go through safety check before they take a plane.A．may B．can C．must D．need6．—Can I take some milk and biscuits to the reading room?—No, our school has a rule that students _______ eat or drink there.A．can’t B．mustn’t C．needn’t D．may not7．（江苏省无锡市锡北片2017届九年级下学期期中考试）—Where are you going for your summer holiday?—We go to Yun Nan, but we haven’t decided yet.A．should B．will C．may D．must8．You __ drive your car so fast. It's very dangerous.A．wouldn't B．shouldn't C．couldn't D．mightn't 9．—Doesn’t Frank like staying at home and looking after his little sister?—_______, but he ________ because both of his parents work.A．Yes; has to B．No; has toC．Yes; doesn’t have to D．No; doesn’t have to10．-Listen! A wolf is crying!-It _______ be a wolf, because a wolf never comes out at this time.A．mustn’t B．needn’t C．can’t D．don’t11．You should________ the teacher________being late for school.A．apology to, about B．apologize to, forC．apologies to, for D．apologize to, on12．I’m sorry, children over 1.4 meters________pay the full price for the show.A．may B．must C．can D．ought to 13．—Look! Mrs. Smith is standing in front of the teaching building.—It______ her. She has gone to Egypt for her holiday.A．must be B．mustn’t be C．can be D．can’t be14．—Jenny, we buy Mom presents. We can clean the house from top to bottom.—Good idea! It’s a special present for Mother’s Day.A．can’t B．mustn’tC．shouldn’t D．needn’t15．—The book report is very important. You ________ write it carefully.—But I ________ hand it in now.A．must; must B．have to; mustC．must; have to D．have to; have to16．Since the road is muddy,it ________last night, ________?A．must be rained; wasn’t it B．must have rained; didn’t itC．must rained; didn’t it D．must have rained; was n’t it17．This book _____ Lucy’s. Look! Her name is on the book cover.A．must be B．may be C．can’t be D．mustn’t be 18．—The food ________be delicious . You ate it up .—You bet . My mum cooked it for me .A．must B．may C．can D．need 19．—Must I hand in my reports today?—No, you ________.A．mustn’t B．can’t C．shouldn’t D．don’t have to 20．My head teacher has made a set of rules to show what we students ________ and ________ not do in class.A．must; must B．will; willC．need; need D．might; might21．—Who is the lady over there? Is it Miss Wang?—It __________be her. Miss Wang is much taller.A．needn't B．mustn't C．shouldn't D．can't 22．—Sorry, Ms Wang. I left my homework at home. Must I hand it in today?—No, you_______ . You_______ bring it here tomorrow.A．mustn’t; sh ould B．needn’t; must C．mustn’t; may D．needn’t; can【参考答案】***试卷处理标记，请不要删除一、选择题1．B解析：B【解析】【分析】【详解】句意：——星期六下午你能来参加我的派对吗？——抱歉，我不能。
(专题精选)初中英语语法知识—情态动词的全集汇编含答案解析
一、选择题1．—The book report is very important. You ________ write it carefully.—But I ________ hand it in now.A．must; must B．have to; mustC．must; have to D．have to; have to2．—Must I finish the work today, Mum?—No, you ________.You can finish it tomorrow.A．mustn't B．can't C．shouldn't D．needn't 3．-Listen! A wolf is crying!-It _______ be a wolf, because a wolf never comes out at this time.A．mustn’t B．needn’t C．can’t D．don’t 4．(2018·山东临沂) Could you please speak a little louder? I ______ hear you very well. A．can’t B．mustn’tC．shouldn’t D．needn’t5．―I can't stop smoking, Doctor.―For your health, I'm afraid you .A．must B．can C．need D．have to 6．—Is that Kate’s green bike?—It ____________be hers. She likes pink.A．can’t B．could C．mustn’t D．might 7．You______ worry about your lessons. Be careful next time and you will get a good mark. A．don’t need to B．not need C．needn’t to D．don’t need 8．—Jenny, you _________ push your way onto the bus.—I’m really sorry about it.A．mustn’t B．needn’t C．may not9．—To m, we’re going shopping at eight, right?—Yeah, but I ______ be a little late, so don’t wait for me.A．may B．should C．mustn’t10．— I wonder if these are Jim's glasses.—They _____his. He doesn't wear glasses.A．might be B．could be C．can't be11．I see the blackboard. I need to have my glasses.A．can B．can’t C．must D．mustn’t 12．— Could you play the piano when you were 8 years old?— ________.A．Yes, I could B．No, I can’t C．Yes, I can D．No, I won’t 13．We _______ keep the new traffic law and learn how to protect ourselves.A．may B．should C．can D．need14．—________ I borrow the books from the library, Miss Yang?—Sorry, you________. These books are only for members of the English Club.A．Can; couldn’t B．Could; can’tC．Could; couldn’t D．Can; needn’t15．Since the road is muddy,it ________last night, ________?A．must be rained; wasn’t it B．must have rained; didn’t itC．must rained; didn’t it D．must have rained; wasn’t it16．—I feel tired.—You ________ go to bed so late.A．must B．shouldn’t C．should17．This book _____ Lucy’s. Look! Her name is on the book cover.A．must be B．may be C．can’t be D．mustn’t be 18．Everyone______ be polite to their parents.A．could B．may C．should D．can19．一Already five people in the taxi, but the driver managed to take me as well.一Terrible, and it be an uncomfortable journey.A．can B．should C．must D．need20．—We've prepared all kinds of foods for the picnic.—Do you mean I___ bring anything?A．can't B．needn't C．mustn't D．won't21．Even the top student can't work out this problem, so it________ be too difficult.A．must B．may C．can D．need 22．—Susan, someone is waiting for you on the phone. It_______ be your sister, but I’m not sure.—Oh, please tell her to call me_______ because I’m busy now.A．might; later B．must; later C．might; late D．must; late【参考答案】***试卷处理标记，请不要删除一、选择题1．C解析：C【解析】【分析】【详解】句意：——这个读书报告很重要。
人教版英语初中英语分类练习——英语情态动词含解析百度文库
人教版英语初中英语分类练习——英语情态动词含解析百度文库一、初中英语情态动词1．— We've ordered too much food. I eat any more.—Never mind. Let' take it home.A. can'tB. mustn'tC. needn'tD. shouldn't【答案】 A【解析】【分析】句意：——我们已经点了太多的食物，我不能再吃了。
——没关系，我们带回家吧。
can't不能；mustn't必须不；一定不要；needn't不必；shouldn't不应该。
根据句意可知选Ａ。
【点评】考查情态动词辨析。
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．— _________ I take my cousin Shirley with us, Mr. Wu？— Yes, but we'll get there by bike. ____________ she ride a bike?— Yes, and she ___________ ride a bike when she was only six years old.A. Could; can; couldB. Can; can; canC. Can; could; couldD. Could; could; can【答案】 A【解析】【分析】句意：-我能带我表弟雪莉和我们一起吗，吴先生？-是的，但我们将骑自行车去那儿。
初中英语情态动词详细用法归纳(含练习及答案)(可打印修改)
初中英语情态动词详细用法归纳（含练习及答案）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.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。
could是can的过去式。
表示过去的能力。
be able to do sth. 常常指经过努力，花费了时间和劳力之后才能做到某事。
is/am/are able to do sthwas/were able to do sth.（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，可能性，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] Acould的用法：（1）.can的过去式，意为“ 能、会”，表示过去的能力。
初中语法英语情态动词讲解及解析
初中语法英语情态动词讲解及解析一、选择题1．It’s amazing that the pen ________turn voice into text with few mistakes.A．can B．must C．may D．need2．Think twice before making a decision, or you __________ get into trouble.A．may B．can't C．shouldn't D．mustn't3．—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 mend4．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 5．—Do we have to finish this today?—Yes, you ________ . Today is the last day.A．would B．may C．can D．must 6．Sorry, smoking is not allowed here. If you ________ , you will be fined according to the rules. A．can B．will C．may D．must 7．—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’t 8．—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．need9．—________ you give me a hand? I can’t put up the poster by myself.—No problem.A．Could B．Should C．Need D．Must 10．Exercise is helpful but it ________ be regular (规律的) exercise.A．must B．may C．can D．need11．You ________ write the report again because spelling mistakes are not allowed at all. A．must B．can C．may D．could 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．— 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’t 14．—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’t15．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 16．— 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．—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．shall18．—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．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．should 21．—Shall we go camping this summer holiday?—Nothing________be better.A．should B．could C．must D．may22．My bike was broken yesterday，so I____walk home．A．might B．had to C．must D．could 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．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 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’t 28．—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．can29．To avoid ________, we’d better ________ the parents’ meeting online.A．gather; hold B．gathering; hold C．gather; holding D．to gather; to hold 30．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’t31．—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’t32．— 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 33．—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 34．—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．shall35．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 36．—What is that young lady’s job?—She ________ be a nurse, I’m not sure.A．must B．may C．need D．would37．You ________ drive after drinking alcohol(酒). It’s against the law.A．mustn’t B．needn’t C．couldn’t D．wouldn’t 38．—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’t39．—Is it really necessary for me to go shopping with a mask on?—I’m afraid you ________ in public. It is not only to protect yourself but also to protect others. A．must B．should C．can D．need40．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’t41．—Is it usually warm in Yancheng in May?—Yes. But it _______ be rather cold sometimes.A．must B．should C．would D．can42．— 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’t43．You ________ pay too much attention to protecting yourself if you plan to go abroad. A．mustn’t B．can’t C．shouldn’t D．needn’t 44．Look at the floor, Tom! ________ you watch TV while having a meal?A．Should B．Could C．Must D．May 45．Sometimes smiles ________ be false, hiding other feelings like anger, fear or worry. A．should B．would C．must D．can 46．—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 47．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 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’t49．—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．need50．You _________ smoke here! Look at the sign. It says "No smoking".A．needn't B．mustn't C．can D．may【参考答案】***试卷处理标记，请不要删除一、选择题1．A解析：A【详解】句意：神奇的是，这支笔能把声音转换成文字，而且很少出错。
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初中英语语法：情态动词讲解及练习情态动词讲解及练习（Modal Verbs）情态动词是初中英语里的一个重要语法项目，也是全国各省市中考试题的一个考查热点。
* 情态动词也可称为“情态助动词（Modal Auxiliaries）”，因为它和基本助动词（be,do, have）都属于助动词类。
* 情态动词和其他动词连用，可表示说话人的语气。
* 情态动词可表达建议、要求、可能和意愿等。
* 情态动词没有人称和数的变化。
* 常用的情态动词有：can, could, may, might, shall, should,will, would，must,这九大情态动词；其他的还有ought to, need, dare等。
一、九大情态动词的时态关系：1. 现在式 can -- 过去式 could2. 现在式 may -- 过去式 might3. 现在式 shall -- 过去式 should4. 现在式 will -- 过去式 would5. 现在式 must -- 过去式 must （常用had to来代替）二、情态动词表示“可能”或“预测”（can, could, will, would, shall, should, must, ought to）（1）can 和 could 用于表示“可能”或“预测”：1. He can't be at home. 他不可能在家。
（否定句）2. Can the news be true? 这消息可能是真的吗? （将情态动词can 置于主语 the news 前就成疑问句）3. Anybody can make mistake. 任何人都可能犯错误。
（只表示理论上的可能性）（2）may 和 might 用于表示“事实上的可能性”或“预测”：1. It may rain tomorrow. （表示可能会发生）明天可能会下雨。
2. It may snow later this afternoon. （表示预测）今天下午可能会下雪。
3. You might be right. （表示有可能）你可能是对的。
（3）will 和 would 用于表示“预测”或“习惯性”：1. I think he will be all right now. 我想他现在一定好了。
（will be 表示一定会）2. That would be his mother. 那肯定是他母亲。
（would be 表示肯定是）3. He will sit there hour after hour looking at the river.他经常一连几个小时坐在那儿看着河水。
（will 表示经常的）（4）shall 和 should 用于表示“必定”：1. I shall be rich one day. （shall be ）总有一天我会发达的。
2. That should be Sam and his mother. （should be）那准是Sam和他的母亲。
（5）must 用于表示“必定”，“必会”：1. This must be good for you.（must be 肯定）这肯定对你是有益的。
2. All mankind must die.（表示必然会发生的事）所有的人一定会死的。
3. Mustn't there be a mistake? （mustn't 多用于疑问句）那肯定会有错误吗？三、情态动词表示“许可”、“请求”（can, could, will, would, shall, should, may, might, must）（1）can 和 could 用于表示“许可”、“请求”：1. Can I go with you? （请求）我能跟你一起走吗？2. Father said I could go to cinema. （表示过去的许可）爸爸说我可以去看电影。
3. Could I ask you something? （请求,用 could 比 can 更婉转）我可以问你一件事吗？（2）will 和 would 用于表示“请求”1. Will you kindly tell me the way to the post office? 请问到邮局怎么走？（表示客气请求）2. Would you give me your address? 请你告诉我你的地址，好吗？（用would比will表示更客气）（3）shall 和 should 用于第一人称，表示征求对方的意见1. Shall we talk? 我们谈谈好吗？2. What should we do next? （用should 比shall 表示更客气）下一步我们该怎么做？3. Shall he come to see you? （用于第三人称疑问句）要不要他来看你？（4）may 和 might 用于表示“许可”（口语中多用can）1. You may take a walk. （表示给予许可）你可以散散步。
2. You might read the story for me. （比may更婉转）是否请给我读一读这故事。
3. May I make a suggestion? 我可以提个建议吗？4. Might I take a look of your work? 我看看您的大作行吗？5. Students may not make noise in the library. （may not 表示不许可或禁止）学生不得在图书馆里吵闹。
6. If I may say so, you are not right. （用于条件句，表示请求）你是不对的，如果我可以这么说的话。
（5）must 用于表示“禁止”，“不准”：1. Cars must not be parked here. （must not表示不许可）此地不准停车。
2. All of you mustn't fishing in the pool. （must not 语气方面比 may not 更强）你们不准在池里钓鱼。
四、情态动词表示“应该”、“必须”（shall, should, may, might, must, ought to）（1）shall 和 should 用于表示“必须”：①. Each member shall wear a name card. （表示规定）每一个会员必须配带名卡。
②. I should answer his letter as soon as possible. （表示应该）我应该尽快给他回信。
③. You shouldn't judge a man always by the clothes. （shouldn't “不应该”含有劝告的意思）你不应该总是以貌取人。
④. The rules shall take effect on Jan. 1st. （shall 用于规章等，表示义务和规定）新规则于一月一日起生效。
（2）may 和 might 用于表示“应该"（多用于法律等条文，一般上多用 shall）:①. Payment may be paid by check.（表示规定）应以支票付款。
②. You might ask before you use my computer. （might表示应该）你应该先问过再使用我的电脑。
（3）must 用于表示“必须”、“务必”：①. You must keep the place clean. （务必）你务必保持地方干净。
②. We must obey orders. （表示有义务）我们必须服从命令。
③. Must I pay now? （用于疑问句）（如回答不必时，需用needn't 或 don't have to）我现在就得付款吗？五、情态动词表示“意图”、“打算”（will, would, shall, should）（1）will 和 would 用于表示某种意图：①. I'll call you as soon as possible. （will 主要用于第一人称）我会尽快打电话给你。
②. Will you accept this invitation? （用would 则表示更客气）你愿意接受这邀请吗？③. Who will do the job? （用于条件句，可用于各种人称）谁愿意做这事？④. We won't （will not） stay here too long. （will not 表示不愿）我们不愿呆在这里太久。
（2）shall 和 should 用于表示说话人的意图：①. We shan't （shall not） go if it rains. （shall not 也可用 will not）如果下雨，我们就不打算走了。
②. I shan't go with you. （shall 只用在第一人称）我不打算和你一同走。
六、情态动词表示“意愿”（will, would, shall, should）（1）will 和 would：①. She will do it if you ask her.（表示主语的意愿）如果你问她，她会做的。
②. Would you have another cup of tea? （用 would 比 will 客气）你想再来一杯茶吗？③. Will you have some cookies? （will用于疑问句，表示问人是否愿意）你想吃些烤饼吗？④. If he will, he can do it. （will 用于条件句，用于第二、三人称）如果他愿意，他会做的。
⑤. Would you excuse me? （would 表示婉转语气）你能原谅我吗？（2）shall 和 should：①. He shall get his allowance. （注意是he shall, 表示说话人的意愿）他会拿到他的津贴的。
②. You should sit here as long as you like. 只要你乐意，坐多久能行。
③. Shall you go to school with me? （疑问句中，表示问对方的意愿）你愿意和我一起到学校去吗？此外，情态动词是初中英语里的一个重要语法项目，也是全国各省市中考试题的一个考查热点，现在以全国部分省市中考试题为例，对情态动词的考点和热点作一分析。
一、考查can的用法a. 考查can表示能力的用法。
在这一用法中，can表示能力，意思是"能，会"，其否定式can't 表示"不能"。