英语情态动词用法导学案
情态动词用法导学案
Modal verbs（情态动词的用法）————课堂导学案一、Lead inWatch a video, then answer a question.---How does Mr. Bean like the man? --- _____________________二、教学过程Step 1: 复习情态动词用法一 5 tasks1.动词的种类：_________________ __________________________________ _________________2.情态动词的定义:___________________________________________________3.已经学过的情态动词：4-3-2①能、会____________ 也许，可能___________应该______________ 将会_________________②必须___________ 需要________________ 敢_______________③不得不_________ 最好_____________________4 情态动词的语法特征：①后接动词____________He can speak English.②无_____和______ 的变化They can speak English?③构成否定句时，在其后加______ 构成疑问句时，将其_____He can’t speak English Can he speak English?注意：have to 不遵循以上②、③规则，其有_____ _____的变化，疑问句也要借_____来完成。
如：They have to go home . She has to go home.They don’t have to go home. She doesn’t have to go home.Do they have to go home? Does she have to go home?④情态动词的肯定回答, 用开头的词来回答.--- May I go now? ---Yes, you may.⑤情态动词疑问句的否定回答，通常用相应的否定形式.---Can she swim?---No, she can’t.但may 和must 的一般疑问句的否定回答，分别用____________ ; _____________5. Have a try(小试牛刀)( )1. ---Must we clean the classroom before breakfast? ---No, you _____.A. can’tB. may notC. mustn’tD. needn’t( )2. ---Can you tell us the story in English? ---No, I_____.A. needn’tB. don’tC. won’tD. can’t( )3.---May I take the books out of the room?--- No, you ___.A. may notB. mustn’tC. needn’tD. don’t( )4. You _____ go there at once.A. hav en’t toB. doesn’t have to B. don’t have to D. not have toStep 2 情态动词表推（猜）测，4 tasks。
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。
情态动词的用法 教案
情态动词的用法教案一、教学目标1、让学生了解常见情态动词的基本含义和用法。
2、帮助学生掌握情态动词在不同语境中的正确运用。
3、培养学生运用情态动词进行准确表达和交流的能力。
二、教学重难点1、重点（1）常见情态动词 can, could, may, might, must, should, ought to, shall, will, would 的基本用法。
（2）情态动词在表示推测、许可、义务、建议等方面的用法。
2、难点（1）情态动词在不同语境中的细微差别和准确运用。
（2）情态动词与虚拟语气的结合运用。
三、教学方法1、讲授法：讲解情态动词的基本概念和用法。
2、练习法：通过练习题巩固所学知识。
3、情境教学法：创设情境，让学生在实际情境中运用情态动词。
四、教学过程1、导入（5 分钟）通过展示一些包含情态动词的句子，如“You can do it” “He must be very tired” 等，引导学生思考这些句子中情态动词的作用，从而引出本节课的主题——情态动词的用法。
2、知识讲解（20 分钟）（1）can 和 could表示能力：can 表示现在的能力，could 表示过去的能力。
例如：“I can speak English” “He could play the piano when he was five”表示许可：can 用于现在或将来的许可，could 用于比较委婉的请求许可。
例如：“You can leave now” “Could I use your phone?”表示可能性：can 常用于否定句和疑问句中表示可能性，could 语气更委婉。
例如：“It can't be true” “Could it be a mistake?”（2）may 和 might表示许可：may 用于正式场合或书面语，might 更委婉。
例如：“You may come in” “Might I ask a question?”表示可能性：may 比 might 可能性大。
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。
高一英语教案-高一英语必修3第2单元导学案情态动词II
高一英语必修3第2单元导学案情态动词（II）导学案4情态动词（ii）一、ought to 应该，应当其否定“ought not to” 或“oughtn’t 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. (2)用于二、三人称，表建议或劝告。
you ought tofollow your teacher’s advice. she ought not to go alone. (3) ought to+have done: 本该……i’m sorry.i ought to have told you this morning.对不起，我本该今天早上告诉你的。
二、have to / don’t have to / mustn’t (1) haveto = have got to 必须，不得不（有人称和数、时态的变化）he has to work on the farm all day . 他不得不在农场工作一整天。
（2）don’t have to 不必……you don’t have to buy a computer. (3)mustn’t禁止，不许you mustn’t sleep in class!三、need 需要，必要（既可以作情态动词，也可以作实义动词，但用法不同）（1）作为情态动词，need 通常用于否定句和疑问句①you needn’t buy the book.. ②――need he do his homework first?――yes ,he must! (no ,he needn’t) (2) need 作为实义动词时，通常用法是： sb/sth need to do (表主动) we need to tell himthe truth. sb/sth need doing /to be done（表被。
九年级英语教学设计导学案(情态动词)
t; can 14．—The book report is very important. You ________ write it carefully. —But I ________ hand it in now. A．must; must B．have to; must C．must; have to D．have to; have to 15．It is 11:00 p.m now. Peter hasn't come back yet. His mother ______ be very mad
三、加强思维
6．I’ve bought a nice necklace for Jo’s birthday. She _____like it, but I’m not sure. A．can B．may be C．might D．must 7．The designer has tried every possible way to make the robot light, so you _____
导学设计
9．—Can we walk across the road now?
—No, we. We have to wait until the light turns green.
A．couldn’t B．needn’t C．shoul heard about the temperature of the earth will rise to 59℃ in 2020?
at him. A．may
B．can
C．must
D．need
1-5：BDCAA 6-10:CDADB 11-15:BCDCC
2/3
导学设计
3/3
情态动词的基本作法教案
情态动词的基本用法教案一、教学目标：1. 让学生掌握情态动词的基本形式和用法。
2. 培养学生运用情态动词进行日常交流的能力。
3. 提高学生对英语语法的学习兴趣。
二、教学内容：1. 情态动词的定义和分类。
2. 情态动词的基本形式。
3. 情态动词的用法和句型结构。
4. 情态动词的练习和应用。
三、教学重点与难点：1. 重点：情态动词的基本形式和用法。
2. 难点：情态动词在特定情境下的运用。
四、教学方法：1. 讲授法：讲解情态动词的定义、分类和基本形式。
2. 互动法：引导学生进行情态动词的练习和应用。
3. 任务型教学法：通过小组活动，让学生在实际情境中运用情态动词。
五、教学过程：1. 引入：通过情景对话，引导学生关注情态动词的用法。
2. 讲解：讲解情态动词的定义、分类和基本形式。
3. 练习：设计不同情境下的情态动词练习题，让学生进行互动练习。
4. 应用：分组进行角色扮演，运用情态动词进行对话。
5. 总结：对本节课的内容进行总结，强调情态动词的用法。
教学评价：1. 课堂参与度：观察学生在课堂上的积极参与情况和提问回答。
2. 练习正确率：检查学生在练习中的正确率，及时给予反馈。
3. 对话表演：评价学生在角色扮演中的语言表达和运用情态动词的能力。
六、教学准备：1. 教学PPT：包含情态动词的基本形式和用法。
2. 练习题：设计不同情境下的情态动词练习题。
3. 角色扮演卡：提供不同角色和情境的卡片。
4. 教学录音机：用于播放情景对话。
七、教学步骤：1. 复习：复习上节课学习的情态动词的基本形式和用法。
2. 练习：让学生完成练习题，巩固情态动词的知识。
3. 情景对话：播放一段含有情态动词的情景对话，让学生跟读并理解。
4. 角色扮演：学生分组进行角色扮演，运用情态动词进行对话。
5. 小组讨论：让学生分组讨论情态动词在实际生活中的应用。
八、课堂活动：1. 游戏：设计一个情态动词的游戏，让学生在游戏中巩固知识。
2. 竞赛：组织一个情态动词知识竞赛，激发学生的学习兴趣。
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。
情态动词导学案3
情态动词导学案教学目标：掌握will/would, shall/should/ought to 的用法一检测1 John ,look at the time you play the piano at such a late hour?A mustB canC mayD need2 I didn`t hear the phone 。
I asleep.A must beB must have beenC should haveD could have been3 She have left school ,for her bike is still hereA can`tB wouldn`tC needn`tD mustn`t4 --I can`t find my purse anywhere.—you it while shopping yesterdayA may loseB may have lostC can have lostD can lose5 Tom wasn’t a good runner, but he ______ catch up with us at last.A couldB canC was able toD is able to二will/ would 的用法1分析：I will do anything for you. 我愿为你做任何事。
If you will read the book, I´ll lend it to you. 如果你愿意读这本书，我会把它借给你。
They said that they would help us. 他们说他们愿意帮助我们。
归纳：will/ would 表示。
2 Will / Would you close the window? It´s a bit cold. 请你把窗户关上好吗？有点冷。
Would you turn down the radio? Tome is doing his homework.归纳：表示多用于疑问句。
小学英语情态动词can 用法导学案
（）13．What can you do, Lin Tao? ________.
A．I like sports B．I want to join the music club
32. Jim often_______ (play) soccer with his friends after school.
33. What about________ (watch) TV at home?
五.句型转换
34. Jenny canplay thechess.(对画线部分提问)
＿＿＿＿＿＿＿＿＿＿Jenny＿＿＿＿＿?
Unit 1 (第课时)
班级：姓名：小组：评价：
【学习目标】：1、熟悉掌握重点短语和句子。2、学会使用情态动词can的用法。
3、学会使用礼貌用语询问他人的才能和意愿。
【知识回顾】
例如：
1.唱歌2.游泳3.跳舞
4.讲故事俱乐部5、给某人打电话
【自主学习】
A---默写下列的短语和句子
1、我喜欢与人们交谈和做游戏。
44. join, let, us, story, the, telling, now, club(.)
45. club,what, want, do ,join to, you (?)
二、单选
（）5．Tom wants ________ to you. Are you free?
A．to tell B．tells C．to talk D．talks
（）6．Can you help me ________ my English?
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。
情态动词精品导学案
情态动词精品导学案1）.表示许可、可能性。
表示许可时，常用于正式场合。
如：May I leave now?我现在可以离开吗？表示可能性时，常用于疑问句和否定句中，意为“可能”。
如：—___________________他明天会来吗？—Maybe.可能吧。
2）.表示祝愿，常用于祝福语中。
如：May you have a happy birthday!祝你生日快乐！即兴发挥：______________________我可以开窗户吗？—Yes。
you ____.可以。
A.May。
mayB.May。
canC.Can。
mayD.Can。
can4.must的用法：1）.表示必须、一定。
如：___ 9 o’clock.我们必须在九点前完成作业。
2）.表示推测，意为“一定”。
如：—_________________他为什么不来？—He must be busy.他一定很忙。
3）.表示责任、义务。
如：___.我们有责任保护我们的环境。
即兴发挥：______________________他一定不是个好人。
—Why do you think so?—I don’t know。
I just have a feeling.他一定是个好人。
A.___5.should的用法：1）.表示应该、理应。
如：___.你应该向他道歉。
2）.表示推测，意为“可能”。
如：He should be at home now.他现在可能在家。
3）.表示建议、劝告。
如：You should take more exercise.你应该多锻炼身体。
即兴发挥：______________________你应该向老师请假。
—Why?—You look pale.你看起来脸色不好。
1.May I borrow your bike。
Can I borrow your bike。
2.It ___。
There ___。
3.He left school。
he might be sick。
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。
情态动词导学案.doc
情态动词导学案(一)教学目标：复习情态动词以及它基本用法教学重点：can/could, may/might, must 的用法情态动词是一种本身有一定的词义，表示说话人对某-动作或状态的态度,但不能单独作—，只能和动词原形连用(即情态动词+动词原形)，否定式构成是在情态动词后面加。
，情态动词无—和—变化, 气。
情态动词主要有下列：情态动词否定式否定缩写cancould)may not mayn'tmight not mightn'tmustshall Shan^tshouldwillwould would notoughtn't toneeddare Daren't情态动词的基本用法1. can (could)1) 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？归纳：表示意思是"、会"2)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。
Can / Could I have a look at your new pen?我可以看一看你的新钢笔吗？肯定回答yes,you 否定回答No,you:归纳：表示意思是在语气上Could比can更加委婉。
3)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。
How can you be so careless?你怎么这么粗心？归纳：表示主要用于否定句、疑问句或感叹句中。
L4)表示可能(理论上或是逻辑判断上)。
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。
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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。
e g. Our football team didn’t p lay well today, but we might do better tomorrow.3. 表示_____________.eg. May you succeed! / May you live a happy life.will / would1. 表示_________________.eg. I have told him to stop smoking many times, but he will not listen.2. 表示询问意愿或提出请求。
eg. Will you give him a message when you see him?Would you like to join the football club?3. 表示___________的动作，意为_______________; will表示现在，would表示过去。
eg. She will sit for hours reading in the afternoon.We would sit around grandpa after supper, listening to his stories when we were young.4. 表示________________________________.eg. Wood will float on the water.The door won’t open.注：would vs used towould和used to都可表示____________的习惯性动作，但used to暗含现在已不这样。
eg. People _________________ to believe that the earth was flat.shall / should / ought to1. shall 用于第一和第三人称的疑问句，表示征求对方意见或许可。
eg. 我们能否将运动会推迟到下月。
__________ __________ __________ __________ __________ ____________ ___________ until next month?2. shall 用于第二和第三人称的陈述句，表示_________、_________、_________等。
Eg. You shall be punished if you break the rule.You shall pay more attention to your behaviors next time.You shall get a gift if you do well in your exams.3. should 表示劝告和建议，作“应该”讲，和ought to相似，ought to语气更重。
eg. 我认为孩子应该好好尊敬长辈。
I think _________ __________ really _________ ________ _________ _________ __________.注：ought_______(有/无) 形式的变化，其否定式为___________________，疑问式将____________ 提至主语之前。
eg. ---Ought he to see the doctor?---Yes, he _________________.4. should 表示诧异，意为_______________.Eg. It’s strange that she should do such a thing.It was so moving that they, so poor themselves, should bring me food.must / have to1. must 表示___________, _____________, 在回答must 问句时，否定式常用_____________, _____________________ 表示“不必”，因为mustn’t 表示____________________.Eg. Must I have a driver’s license if I want to drive a car?---Must I be home before eight o’clock, Mum?---No, you __________________________________.翻译：司机喝酒后严禁驾车。
_____________ ______________ _____________ ______________ _______________.2. 表示主观的推测，意为____________________, 一般只用于肯定句中，表示不可能用_____________.eg. He has got the first place three times. He must be very smart.He cheated in the exam? That __________ be true.must vs have tomust 表示说话人的主观看法, have to 表示客观需要; have to 有更多的形式（had to），还可以用have got to 代替。
eg. I can’t see things clearly. I _____________ wear glasses.You ___________ be honest.练习：1. You ___________ smoke in public places.2. The radio is broken. I _____________ to buy a new one.3. I don’t like this radio. I _____________buy a new one.4. You don’t ______________ worry about that.三．情态动词+ 完成时1. 表示对_____________发生事情的推测_____________ + have done 一定…了____________________ + have done 不可能…了____________________ + have done 也许…了eg. The work was beyond his ability, so he __________________________ (finish) it by himself.She _________________________(wipe) the table, for the table is very clean.He ___________________________ (might, hurt) seriously in the car accident.2. 表示___________的情态动词+ have doneshould (not) have done _____________(而没做)，_______________(而做了) eg. You should have taken more exercises before.You shouldn’t have let out the secret to her.could have done ____________________（而没有）eg. She could have done the job better, but unfortunately, she didn’t perform well that day. needn’t have done _____________________(而做了)eg. You needn’t have come to see me, since you have such a busy schedule.四．练习写出下列句子中情态动词的功能用法或含义1. ---Who can it be that is knocking at the door?--- It may be the postman.2. The car won’t start.3. May you succeed!4. During the vocation, he would visit me every week.5.He must be reading now, for the light in his room is still on.6. If you don’t finish your homework first, you shall not go to the party.完成句子1. I was really anxious about you. You ________________________(leave) home without a word.2. The police still haven’t found the lost boy, but they’re doing all they __________.3. The traffic is heavy these days. I _______________arrive a bit late, so could you save me a place?4. What do you mean, there are only ten tickets? There __________ be twelve.5. Doctors say that exercise is important for health, but it ____________be regular exercise.6. When we were young, we ______________ gather together to see our favorite shows.7. I hope to have car of my own so that I ________________ compete with others for space on crowded buses.8. “You ___________ have the wrong number, for there is no one of that name here”.9. The accident _____________________________(avoid) if the driver had been more careful.10. Your eyes are really red. You _______________________(go) to bed late last night.11. I actually _______________________(bring) so much wine --- only three people came.。