高中英语情态动词导学案
高一英语 learning about language 情态动词的用法导学案 新人教版 学案
You had better have come earlier. 你本该来得早一点。
Need you go yet? 你要走了吗？
Yes, I must. / No, I needn't.是的，我要走了/不，不急着走。
ShouldIopen the door?
4) should + have done
You should have started earlier.
7.ought to
1) 用于第一人称，表有责任或有必要做某事。
We ought to be more careful with our homework.
We ____have received the letter yesterday , but it didn’t arrive .
备注
教（学）后反思
拓展提升
备注
用适当的情态动词填空
Ihave not a raincoat with me .that is whyI_______ wait until the rain stops .
_____I water the trees onTuesday ?
----- No ,you needn’t.
He is so strong that I ____fight against him.
例如：
You don't have to tell him about it. 你不一定要把此事告诉他。
You mustn't tell him about it. 你不得把这件事告诉他。
情态动词导学案
情态动词导学案考点：1.情态动词的特殊用法(can/shall/must/will/would/should)2.情态动词+have+ done)3.表推测的情态动词的用法4.情态动词的惯用形式难点：情态动词+have+ done教学过程：情态动词的常考用法：1.can / could (有能力做或能够发生) “能够”1）表示惊异、怀疑、不相信的态度（否定、疑问、惊叹）What can he mean?“究竟”2）惯用形式“cannot…too” cannot but do/can’t help but3) 表示常有的行为和情形。
“有时会”4）“可能”（否）How __ you say that you really understand the whole story if you have covered only part of the article?(02) A can B must C need D may 2. may / might1).允许、许可否定---mustn’t“可以”2).推测(肯,否) “可能”3).祝愿 May all your dreams come true!4).may/might as well 还是…好You may as well tell me the truth.(00) Sorry I am late. I ___ have turned off the alarm clock and gone back to sleep again. might / should /can / will3. Must1）必须，应该。
否定形式mustn‘t表示禁止2）否定回答---needn’t / don’t have to肯定回答---yes. You must.3) Have to 强调客观4) 偏要,硬要 Why _it rain?(03) Naturally, after I told her what to do , my daughter____ goand do the opposite! A may B can C must D shouldHe must be a teacher ,_____ he ? He must have gone home,______ he ?It must have rained last night, ____ it ?4. Shall1）用于第一、三人称疑问句中，表示说话人征求对方意见。
英语情态动词用法导学案
情态动词讲解一．概念引入情态动词表示一种情感和态度，是___________________(实义动词or 助动词)，它本身语义不完整，要和实义动词一起使用，后接动词的____________形式。
注：实义动词即行为动词，表示动作的动词，可单独使用做谓语。
与实义动词相对应的是非实义动词，包括（帮助构成时态、语态的）be动词，（帮助构成时态、强调、虚拟的）助动词（do / does / did, have / has / had）以及情态动词。
eg. I did a lot of homework today, and I felt satisfied.People do love to have holidays for various reasons.情态动词有_________________________________________________________________________________________________。
二．基础讲解can / could1. 表示_______________.eg. My grandma is 80 years old, but she can drive without glasses.2. 表示________________, could 可以代替can, 表示语气较为委婉。
eg. They asked whether they could smoke in the hall.Could you please pick me up at the airport at 5 p.m. next Monday?3. 表示推测或理论上的可能性，意为_________________.eg. I thought the story could not be true.Even an experience teacher can make mistakes.may / might1. 表示_______________, 它的否定形式可以用may not，但表示“强烈禁止”等意思时常用_______________.eg. May I turn up the radio a little?He said that I might use his telephone.2. 表示______________的推测, might 比may 的语气更弱。
period5情态动词导学案 (1)
Period 5 情态动词导学案Student sheet教学内容：情态动词的用法学习目标; 知道情态动词有哪些理解并记住情态动词的用法能够完成下面的练习题教学设计：学生首先自学情态动词的基本的用法老师作补充讲解，点拨完成下面的练习题（学生独立完成）核对答案，学生讲解，老师作点拨情态动词的基本用法1. can (could)1）表示能力，could主要指过去时间。
Two eyes can see more than one. 两只眼比一只眼看得清。
Could the girl read before she went to school? 这女孩上学前能识字吗？2）表示可能（理论上或是逻辑判断上）。
The temperature can fall to –60℃, that is 60℃ below freezing.气温可降至—60℃，也就是零下60℃。
He can´t (couldn´t) have enough money for a new car. 他不可能有足够的钱买新车。
You mustn´t smoke while you´re walking around in the wood. You could start a fire.在林子里走时勿吸烟，那样可能会引起火灾。
3）表示允许。
Can I have a look at your new pen? 我可以看一看你的新钢笔吗？He asked whether he could take the book out of the reading—room.他问他可不可以把书带出阅览室。
4）表惊异、怀疑、不相信等态度。
主要用于否定句、疑问句或感叹句中。
Where can (could) they have gone to? 他们会去哪儿了呢？He can´t (couldn´t) be over sixty. 他不可能超过六十岁。
情态动词学案导学引导课
情态动词一．目标与策略明确学习目标及主要的学习方法是提高学习效率的首要条件，要做到心中有数！ 学习目标（高考要求）● 考查情态动词的推测和可能性用法辨析：考查情态动词在虚拟语气中的应用；考查情态动词+have+done 的运用，表示推测和在虚拟语气中的使用；情态动词表示“情感”“态度”“语气”的用法辨析。
重点难点：● 重点：情态动词 shall ，can/could ，may/might ，must 等基本用法。
● 难点：情态动词表推测和可能性的用法。
二、学习与应用“凡事预则立，不预则废”。
科学地预习才能使我们上课听讲更有目的性和针对性。
我们要在预习的基础上，认真听讲，做到眼睛看、耳朵听、心里想、手上记。
用给出的词填空（will/should/may/can/must/can ’t ）--____Johnson come on foot?，--He ____,but he ____ not,he is used to driving his car.--____he be in the office now?--He ____ be reading in the library now for he doesn ’t like studying.--He ____be in the classroom for it is time to class.--It ____rain in a minute for it is cloudy now.参考答案：will ,should,may,can,can ’t,must,should二.情态动词的基本用法：(重基础)Can/could/be able to区别 can / be able to形式上: can 只有两种时态____, 但是be able to 有很多种知识回顾——复习 学习新知识之前，看看你的知识贮备过关了吗？知识要点——预习和课堂学习 认真阅读、理解教材，尝试把下列知识要点内容补充完整，带着自己预习的疑惑 认真听课学习。
2019高考英语情态动词导学案.docx
情态动词李仕才课程目标一、学习目标1.情态动词的基本用法。
2.情态动词+have done的用法。
二、重点、难点重点：情态动词的基本用法。
难点：情态动词+have done的用法。
三、考情分析上述语法是高考的重点语法，历年考题中占有重要的地位，并且是高考试题的难点。
一般在单选中能占1-2分；我们学习时应特别注意上述语法的学习及做题技巧，并认真研究近几年的高考题。
知识梳理一、情态动词的基本用法考点1 can和could的基本用法【用法】1.can和could都可以表示能力；许可、建议、请求以及推测；2.在疑问句和否定句中表示“怀疑，猜测”或“可能性”；3.如果要表示委婉的语气，"J用could代替can,这时could不再是can的过去式。
【例句】—Can she be in the computer center?或许她是在计算机中心？—No, she can, t be in it.不，她不可能在里面。
Could I borrow your bicycle?我能借你的自行车用用吗？【考题链接】1.You don' t have to know the name of the author to find a book・ You __________ find the book by the title.A. must «B. needC. canD. would答案：C解题思路：句意：你没有必要一定通过作者的姓名来找到一本书。
你可以根据这本书的标题（书名）來找到这本书。
must “必须，一定” :need “需要” ；can “可以，能够”: would "将会”,表过去的将來。
根据句意，只有C项符合题意。
2.—Could I speak to Mr. White?—I' m afraid he ________________ answer your call now. He is holding a meeting.A. can" tB. needn' tC. mustn' tD. shouldn" t答案:A解题思路：考查情态动词。
情态动词导学案-高三英语一轮语法复习
一轮英语语法之八：情态动词【预习案】1.情态动词的特性1)不能单独充当谓语，后接______________。
2)无_________________形式。
3)部分情态动词无过去式。
4)可用作助动词。
2.3.常见用法：1)用于请求与询问①May/Might/Could/Can I...?②Would you (please)…/Would you mind…?③Must/Need I…?④Shall I/we/he…?2)表推测①It can be very warm in this area.②It's 9:30 .I think she ___________ be in her office.③That restaurant ____________ be very good. It’s always empty.(2)时间观念①+do/be 对现在情况的推测②+be doing 对现在正在进行的动作的推测③+have done 对过去发生的事情的推测填空：①I can’t find my ticket, I think I must __________(lose) it.②Judging by her clothes, she must ___________ very rich.3)虚语气中的运用①should (not) have done sth. 本应该做某事却没做/本不该做某事却做了②could/might have done sth.③needn’t have done sth.1)特殊的情态动词2)固定搭配①may/might as well ______________________②would rather do…, would prefer/like to do…③can’t …too…/enough __________________________④can’t help/resist doing sth. ______________________⑤can’t but do sth.⑥can’t wait to do ________________⑦before sb can… _____________________⑧I dare say. ___________________⑨do all/what/everything sb can to do sth _________________________【当堂训练】1.选择题1)（2017北京卷）Samuel, the tallest boy in our class, ____ easily reach the books on the top shelf.A.mustB.shouldC.canD.need2)（2017天津卷2）My room is a mess, but I __________clean it before I go out tonight. I can doit in the morning.A. daren’tB.shouldn’tC.needn’tD.mustn’t3)【2016·北京】I love the weekend,because I________get up early on Saturdays and Sundays.A.needn’tB.mustn’tC.wouldn’tD.shouldn’t4)【2016•浙江】George _________ too far . His coffee is still warm .A. must have goneB. might have goneC. can't have goneD. needn't have gone5)【2014·陕西卷】My book,The House of Hales,is missing.Who________have taken it?A.needB.mustC.shouldD.could6)【2021年天津卷第一次】It used to be that you ______ drive for miles here without seeinganother person, but now there are houses and people everywhere.A．need B．should C．could D．must7)【2021年天津卷第二次】I honestly don't think I'm going to be admitted.Wel1, you never know! You________ a better impression than you think.A. may have madeB. should have madeC. couldn’t have madeD. needn't have made8)【2020·天津】Jim says we ______ stay in his house as long as we leave it clean and tidy .A．must B．can C．need D．should9)【2020·天津】You ____________ have scolded him for his poor performance. After all, he haddone his best.A．must B．should C．mustn’t D．shouldn't2.填空：1)When I was a child, I ________ watch TV whenever I wanted to.2)The police haven’t found the lost child, but they’re doing all they _________.3)If you don’t want to go swimming, you ________ as well stay at home.4)I like the author so much that I __________ wait to read his new book.5)You __________ be too careful when crossing the street.6)The poor postman was fired before he _________ account for his fault.7)It is usually warm in my hometown in March，but it ________be rather cold sometimes.8)If you ________go，at least wait until the storm is over.3.单句改错：1)Some classmates suggest we can go to places of interest nearby.2)We can chose between staying at home and taking a trip.3)Do I need leave my telephone number and address?4)I mustn't use a clock to wake me up because at six o'clock each morning the train es by myhouse.5)But in fact, Gorka can quite shy, even around the people he has known for a while.6)As for the consumers, they had better have their own judgment and not were puzzled by ads.7)He may have given you more help, even though he was very busy.【巩固练习】1.选择1)【2015·北京】—Can’t you stay a little longer?—It’s getting late.I really_____go now,My daughter is home alone.A.mayB.canC.mustD.dare2)【2015·重庆】You____be Carol.You haven’t changed a bit after all these years.A.mustB.canC.willD.shall3)【2015·浙江】It was so noisy that we__________ hear ourselves speak.A.couldn’tB.shouldn’tC.mustn’t D needn’t4)【2015•天津】I ______ have worried before I came to the new school, for my classmates here arevery friendly to me.A.mightn’tB.mustn’tC.needn’tD.couldn’t5)【2015·四川】You_____be careful with the camera.It costs!A.mustB.mayC.canD.will6)【2015·陕西】You __________ feel all the training a waste of time, but I’m a hundred percentsure later you’ll be grateful you did it.A. shouldB. needC. shallD. may7)【2015·福建】—Sorry,Mum!I failed the job interview again.—Oh,it's too bad.You________ have made full preparations.A. mustB.canC.wouldD.should8)【2018年北京卷】In today’s information age, the loss of data _________ cause serious problemsfor a pany.A. needB. shouldC. canD. must9)【2018年江苏卷】It’s strange that he_______ have taken the books without the owner’s permission.A. wouldB. shouldC. couldD. might10)【2018年天津卷】I can't find my purse. I___________ it in the supermarket yesterday, but I'mnot sure.A. should leaveB. must have leftC. might leaveD. could have left2.改错1)We must found ways to protect our environment.2)I dare not to face the danger bravely.3)You shouldn't have bought so much food, because I have prepared everything we need for thepicnic.4)You had better not to e here tomorrow.5)You mustn’t do the exercise if you don’t want to.3.填空1)—No one ________be pared with Yao Ming in playing basketball.—Oh，you are really his big fan.2)It ________be the postman at the door. It's only six o'clock.3)I ________worry about my weekend—I always have my plans ready before it es.Just be patient.4)You ________expect the world to change so soon.5)—May I take this book out of the reading room?—No，you ________.You read it in here.6)You ________park here！It's an emergency exit.7)—I don't really like James. Why did you invite him?—Don't worry. He ________not e. He said he wasn't certain what his plans were.8)—I left my handbag on the train，but luckily someone gave it to a railway official.—How unbelievable to get it back！I mean，someone ________ have stolen it.9)It ________have been Tom that parked the car here，as he is the only one with a car.10)What do you mean，there are only ten tickets？There ________ be twelve.。
情态动词导学案
高一英语情态动词导学案【明确目标】1、掌握情态动词的用法2、能够运用所学情态动词知识进行熟练对话。
【自学指导】概说：情态动词表示说话人的语气和情态，需要，可能，愿意和怀疑等。
情态动词有一定的词义，但不完整，必须和主要动词的原形一起构成谓语。
常用的情态动词有：can, could, may, might, must, have to, ought to, need, dare, shall, will, should, would, be able to, etc.一. can , could, be able to用法I. 1) can 表示体力或脑力方面的能力，或根据客观条件能够做某事的能力。
A blind man can not judge color.He can speak five languages.2) 表示许可，在疑问句中表示要求，否定句中表示不许。
Can (May) I come in ?----- Can I use your dictionary?----- Of course, you can.3) 表示可能性，常用于疑问句和否定句中.Can it be true?Can the hall seat a thousand people?Someone is knocking at the door. Who can it be?She can’t be here.Mary can’t have gone there alone. 4) be able to与can 的比较A) 表示能力时可通用No one can / is able to do it.Can you come tonight? /Will you be able to come tonight?B) 表示经过努而成功地办到了某个具体的事情时，只能用be able to 不可用 can。
With the help of the firemen, they were able to leave the burning house.After years of hard work he was able to win the prize.2. could1) could 是can的过去时，除具有can的各种功能外，还可以用来比较委婉，客气地提出问题或陈述看法。
高二英语 Unit13 lesson3语法情态动词导学案
高二英语 Unit13 lesson3语法情态动词导学案【考点一情态动词的基本用法】1、can 和could的用法(1)表示惊讶，常用在否定句和疑问句中。
H ow could you do such a silly thing? 你怎么能做那样的蠢事呢？(2)cannot、、、too/enough表示“无论……也不过分”；“越……越好”。
You can’t be too careful while driving、开车时越小心越好。
2、may和might的用法(1)may和might表示“许可”，“可能性”，“祝愿”等意义。
①在给予别人许可时，常用can，但有时也用may。
不能用might。
No，you may not、“不，不行。
”②“may as well＋动词原形”意为“最好，满可以，倒不如”。
You may as well do it at once、你最好马上就做这件事。
We may as well stay where we are、我们留在现在的地方倒也不错。
(2)may作“可以”讲时，其否定式常用“mustn’t”表示“禁止”；must作“必须”讲时，其否定式是“needn’t”，表示“不必”。
No，you mustn’t、(委婉的拒绝可用：Sorry，but I am using it now、或You’d better not、等)No，you needn’t、3、Must (1)表示禁止(用于否定句)You must not speak ill of others、你一定不要说别人的坏话。
Smoking must not be allowed in the office、严禁在办公室吸烟。
(2)表示“偏执”，“固执”Must you make so much n oise? 你非得弄出这么大声吗？If you must smoke，please go out、如果你偏要吸烟，那你就出去吧。
Modal verbs 情态动词导学案
Modal verbs 情态动词导学案陈艳红【学习目标】1.牢固掌握情态动词的基本意义和用法；提高运用解题能力。
2.通过合作探究，解决情态动词理解障碍；学会熟练语法知识解题的方法。
3.全力以赴，以激情投入学习，享受阅读的快乐。
【重点难点】：情态动词在语境中的运用。
【使用说明及学法指导】自学：20分钟课前自学导学案课前预习部分，独立完成预习效果检测。
【课前预习案】情态动词命题特点考点点击：情态动词主要用来表示说话人的看法、态度等，它是英语动词中最难把握的一类，也是每年高考必考内容。
命题热点：为情态动词的基本用法辨析，情态动词表示推测的用法辨析，情态动词在虚拟语气中的运用。
考查形式：主要体现在听力理解、单项填空和完形填空中。
热点一：情态动词的基本用法1. can/ could be able to①The fire spread through the hotel very quickly but everyone ______ get out.A. had toB. wouldC. was able toD. could②--- Could I use your computer?--- Yes, you ______.③Mr. Bush is on time for everything. How ______ it be that he was late for the opening ceremony？(2001上海春)A. canB. shouldC. mayD. must2. Must/ have to①Children under 12 years of age in that country ______be under adult supervision when in a public library.A. mustB. mayC. canD. need②Tom, you _____leave all your clothes on the floor like this！(2005全国II)A. wouldn’tB. mustn’tC. needn’tD. may not③—Who is the girl standing over there?—Well, if you ______ know, her name is Mabel.A. mayB. canC. mustD. shall④Tom, _____ you play the piano at midnight?A. mayB. canC. mustD. shall3. will/ would①I _____ often go fishing when I lived in the country.②Which would you rather _____(choose), go to the cinema or go for a meal?4. shall①“The interest(利润)______ be divided into five parts, according to the agreement(合同) made by both sides,”declared the judge.A. mayB. shouldC. mustD. shallshould①You can’t imagine that a well-behaved gentleman _____ be so rude to a lady.②_____it rain tomorrow, the meeting would be put off.③I ______ pay Tracy a visit, but I am not sure whether I will have time this Sunday.A. shouldB. mightC. wouldD. couldought toI ought to tell you something before you leave.变成否定句：______________________________________________________.变成一般疑问句：__________________________________________________5.need①—I don’t mind telling you what I know.—You ______. I’m not asking you for it.A. mustn’tB. may notC. can’tD. needn’t②I don’t think the windows _____ at this time of the night.A. needs cleanB. need cleaningC. need being cleanedD. need to clean6. may.---Might/Could I use your bike?--- Yes, you may/ can.（这儿不能用Might 或Could）---No, you can't. / ---No, you mustn't. / ---No, you'd better not.热点二：情态动词的推测性用法情态动词must, will, would, ought to, should, may, might用在肯定句中表示推测，其可能性程度按其排列顺序由强到弱，可以翻译成：“肯定，会，应该，可能”等意。
情态动词导学案
情态动词导学案情态动词是英语中的一类特殊动词，用来表示说话人对某种动作或状态的推测、看法、建议、命令、许可等情态意义。
情态动词包括can, could, may, might, must, shall, should, will, would, ought to 等。
在文章中，情态动词的使用非常灵活，可以根据具体语境表达出不同的含义。
一、情态动词can和could的用法1. 表示能力或可能性：e.g. She can speak three languages.（她会说三种语言。
）2. 表示允许或请求：e.g. Can I borrow your pen?（我可以借你的钢笔吗？）3. 表示可能性或推测：e.g. It can't be true.（这不可能是真的。
）4. could多用于过去时，表示过去的可能性或推测：e.g. She could have missed the train.（她可能错过了火车。
）二、情态动词may和might的用法1. 表示许可：e.g. You may leave early if you finish your work.（如果你完成了工作，你可以早点离开。
）2. 表示可能性或推测：e.g. It may rain later.（今天晚些时候可能会下雨。
）3. might常用于过去时，表示过去的可能性或推测：e.g. I thought I might have left my keys at home.（我以为我可能把钥匙忘在家里了。
）三、情态动词must的用法1. 表示必须或肯定：e.g. You must finish your homework before you go out.（你必须在外出之前完成作业。
）2. 表示推测：e.g. He must be at home now.（他现在一定在家。
）3. 表示责任或义务：e.g. We must help those in need.（我们必须帮助那些需要帮助的人。
必修3unit1情态动词导学案
Unit1 Festivals round the World (Grammar)主编：李树辉审核：张静静编号：07姓名：班级：学习目标：训练学生的思维，学生能够根据上面阅读文章的内容写一个与文章结尾不同的结局，学生通过思考写出自己的思想、自己的做法，尝试自己解决问题。
重点： The meaning and correct use of each pair of modal verbs: can and could, may and might, will and would, shall and should, must and can’t难点：How to use proper modal verbs according to the concrete and authentic situation. 语法聚焦情态动词 ( modal verbs)：表说话人的某种感情或语气，对某一动作或状态的某种态度。
表示“需要、可以、必须、应当”等。
一、can 与could1.表能力1) Some of us can use the computer now, but we couldn’t last year.2) The new-built theatre can seat 1500 people.2. 表示推测，意为“可能”“或许”，用于疑问句或否定句3) Can she be in the computer center?4) I though what he said could not be true.3. 表示“请求”“允许”(表请求时，口语中常用could 代替 can 使语气更委婉，回答时用can)5) Can/Could I use your dictionary?6) Could you lend me a hand?4. 表示“许可”，可与may 换用。
You can go home now.5. can 用于疑问句或否定句中时，表惊异、不相信等，意思是“可能、能够”。
情态动词学案优质导学案(精品公开课)
情态动词一、情态动词的基本特征：•情态动词有一定的意义，表示说话人的语气或情绪•无人称和数的变化•有时态的变化，有时过去式变化是表达委婉或其他语气•通常接动词原形二、情态动词的三大考点：1. 基本用法2. 推测用法3. 虚拟用法1. 情态动词否定式的含义mustn’t 不准, 禁止needn’t 没必要( = don’t have to )can’t 不能; 不可能may not 不可以; 可能不shouldn’t 不应该( = ought not to )2. dare和need常用作实义动词，有时态、人称和数的变化，所不同的是，作实义动词时，在肯定句中，dare后面通常接带to的不定式，在否定和疑问句中，dare后面可接带to或不带to的不定式。
need 后可加不定式和动名词. 如:I dare to swim across this river. He does not dare (to) answer. The flower needs watering.四、情态动词表推测的用法小结1.Someone is knocking at the door. Who can it be?It may be Mrs. Lei. / It can’t be Mrs. Lei. / It must be Mrs. LL.2.It’s too late. I think they may/might have gone to bed.3.He must have been to that city before, for he knows a lot about the city.4.He can't have left on business, for I saw him just now in the library.5.He couldn’t have seen the film because he knew nothing about it.6.He must be reading books in the library now.1. should/ought to “按说应该”：表示预测或合乎理想的情况或结果。
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Learning procedure: To study main points and master the usageⅠ.can, could，be able to 译为“能、可能”1) 表示能力Some of us can use the computer now, but we couldn’t use the computer last year.I’ll not be able to come this afternoon.He was able to go to the party yesterday evening in spite of the heavy rain.总结：表示现在的能力用，表示过去的能力用.当表示“经过努力才得以做成功某事”时应用，不能用can。
表示“将来能”用。
2) 表示请求和允许。
-----Can I go now?----- Yes, you can.（No, you can’t. ）---- Could I come to see you tomorrow?---- Yes, you can. ( No, I’m afraid not. )总结：could 不是can的过去式，只是语气，在答语中用代替。
3) 表示推测（惊讶、怀疑、不相信的态度），用于和句中。
Can that be Mike? I thought he was in Greece. This can’t be done by him.I thought the story could not be true.偶尔用语肯定句中译为“有时候会…”，表示大部分时间不是这样，只是偶尔发生的事情。
It can be very cold in this part.4) could have done用在句中可以表示本来能做某事但没做，can/could have done用在和句子中表示对过去情况的推测。
I saw Mr.Zhang just now. He couldn’t have gone to Beijing.You could have done better, but you didn’t try your best.You can’t have lef t so soon.5) 常用句式总结①can +否定词+too/enough表示You can’t be too careful.你越小心越好You can’t remember enough English words.你记越多的英语单词越好。
②can’t but do sth表示I can’t but admire your bravery.我不得不佩服你的勇气I could not but choose to go.Ⅱ.may, might译为“也许”1) 表示请求和允许。
----Might/ May I smoke in this room? ---- No, you mustn’t.---- May/Might I take this book out of the room? ---- Yes, you may. (No, you can’t / mustn’t. )总结：might比may语气，而不是过去式。
否定回答时可用或，表示“不可以，禁止”2）用于祈使句，表示祝愿。
May you succeed! 祝你成功祝你快乐！3) 表示推测、可能性。
He may /might be very busy now. Your mother may /might not know the truth.总结：表示推测用于和句中，疑问句用代替。
might不是过去式，它所表示的可能性比may 。
可能做了某事(猜测) He may/might have gone home.You might have told me earlier!你本可以早点告诉我(实际没有告诉) might have done 表示“过去本可以做某事而没有做。
5) 常用句式总结①不妨，倒不如You may as well ask him. You might as well stay with us.②很可能He may well be proud of his son. We might well get injured.Ⅲ.must译为“必须”, have to译为“不得不”1) 表示必须、必要You must come here on time. I have to go now, because my mother is in hospital.---- Must we hand in our exercise books today? ---- Yes, you must.（No, you don’t have to / you needn’t.）总结：①表示义务即必须时must强调主观，而have to 强调需要。
must只有一般现在时，have to 有更多的时态形式。
②在回答引出的问句时，如果是否定的，不能用mustn’t（），而用needn’t, don’t have to（不必）.3) 表示推测、可能，只能用于句中。
其中must have done表示You’re Tom’s good fr iend, so you must know what he likes best. Your mother must be waiting for you now.I didn’t hear the phone. I must have been asleep.4) 表示“偏偏”表示很不巧，通常都是令人不愉快的事。
翻译句子：We were ready to leave, but the baby must catch cold.Ⅳ.need译为“需要”1）You needn’t come so early. ---- Need I finish the work today? ---- Yes, you must. / No, you needn’t.总结：need 作情态动词用时, 常用于和句中。
表示Tom needn’t have done it yesterday.作实义动词用时，有人称、时态和数的变化。
The house needs to be painted. Students need to finish their homework today.Ⅴ.shall1) shall 用于第一、三人称疑问句，表示说话人：。
What shall we do this evening? What shall he do next?2) shall 用于第二、三人称，表示说话人给对方的。
You shall fail if you don’t work hard. He shall have the book when I finish it. He shall be punished.Ⅵ.should, ought to译为“应该”1) 表示劝告、建议。
should, ought to可通用，但在疑问句中常用should。
翻译句子：You should / ought to go to class right away.2. Should I open the window?2) 表示推测通常指有事实依据，常理推断It’s nearly seven o’clock. He ought to/should be home by now.3）should表示惊讶、遗憾有时与why/who/how等疑问词连用译成“居然、竟然”翻译句子：why should you think so?4) should/ought to have done 表示否定形式表示You should/ought to have paid more attention to your lessons. Tom shouldn’t/ought not to have told me secret.Ⅶ.will, would译为“愿意、要”1) 表示请求、建议等，would更委婉。
Will / Would you pass me the ball, please?2) 表示意志、愿望和决心。
I will never do that again. They asked him if he would go abroad.3) 区分would和used toDuring the vacation, he would visit me every other day. She would play here.When we were children, we would/ used to go skating every winter.He used to like you. He used to be a quiet boy. I used to get up early.（过去起早，现在可能不起早了）总结：当表示过去习惯性的动作时，二者。
used to可以与状态动词连用，表示过去反复发生的动作或某种倾向。
若强调过去与现在的对比，用。
4) will 常用与第三人称表示习惯性动作。
Fish will die out of water.5)would like/love have done本打算做sth但做了别的事情。
I would like to have read the article, but I was very busy then.Ⅷ .dare译为“敢”1）She daren’t even look out. Dare you go school by yourself? 总结：dare 作情态动词用时, 常用于和句中。
dare的特殊句式“我想、我猜”I dare say he will come.巩固训练一、基础题（level A）1总结：猜测: must, may, might, can, could用于肯定句,非常肯定的猜测是；用于肯定句,表示可能的猜测是用于否定/疑问句,过去时用could的是；表示预测“应当” 的是2翻译下列情态动词的否定形式mustn’t；needn’t (=don’t have to)can’t；may not ；shouldn’t（=ought not to）3总结：情态动词+ have done本应该做而没做；本不该某事而做了本可以做而没做；不必做的做了可能做了某事(猜测) ；一定做了(猜测)一定没有做(猜测)※※※※※※※※※※※※※※※※※※达标训练※※※※※※※※※※※※※※※※※※※※二、强化题（level B）( )1. ---May I sit beside you, sir?--- No, you ______. My girlfriend is coming soon.A. can’tB. mustn’tC. needn’tD. shouldn’t( )2.-- _____ I speak to Mary, please?--S orry, she____ come to the phone because she isn’t in.A. Might; won’tB. Can’t; mustn’tC. May; can’tD. Couldn’t; shouldn’t( )3. --- I want to know if I _ smoke here.--- No, you____ . Could you see the sign “NO SMOKING” there?A. can; needn’tB. must; can’tC. shall; won’tD. may; mustn’t( )4. My wife never remembers my telephone number. She always ____ look it up.A. mustB. shouldC. wouldD. has to( )5. --- ____ you pass me the English magazine, please? --- Sure. Here you are.A. CouldB. NeedC. MustD. Might三、提升题（level C）( )1. A computer ___think for itself, it must be told what to do.A. can’tB. couldn’tC. may notD. might not( )2.The fire spread through the hotel very quickly but everyone ____ get out.A. had toB. wouldC. couldD. was able to( )3.--Where is my uncle, Mary? --He ___ in the bedroom.A. must have beenB. must beC. may have beenD. should have been( )4.Peter ___ come with us tonight, but he isn’t very sure yet.A. mustB. mayC. canD. will( )5. --That must be a mistake. --No, it ___ a mistake.A. must not beB. needn’t beC. can not beD. would not be( )6. It’s nearly 7 o’clock. Dad ___ come home soon.A. canB. couldC. wouldD. should( )7.--Are you coming to Jeff’s party?--I’m not sure. I ___ go to the concert tonight.A. mustB. wouldC. shouldD. might( )8..I didn’t see her in the meeting room this morning. She ___ at the meeting.A. mustn’t have spokenB. shouldn’t have spokenC. needn’t have spokenD. couldn’t have spoken ( )9.Johnny, you___ play with the knife, you ___ hurt yourself.A. won’t; can’tB. mustn’t; mayC. shouldn’t, mustD. can’t; shouldn’t( )10.I didn’t hear the phone. I ___ asleep.A. must beB. must have beenC. should beD. should have been四、实战演练（level D）( )1. It’s nearly seven o’clock . Jack ___ be here at any moment.A. mustB. needC. shouldD. could( )2. They will ______ run this machine on their own in three months.A. canB. couldC. mayD. be able to( )3. That big cinema ______ seat 2,000 people.A. canB. shouldC. ought toD. is able to( )4. — Could I borrow your dictionary? — Yes, of course you _______.A. mightB. willC. canD. should( )5. — Might I watch TV after supper? — Yes, you ________.A. mayB. mustC. mightD. can1) 表示能力总结：表示现在的能力用can ，表示过去的能力用could.当表示“经过努力才得以做成功某事”时应用was able to ，不能用can。