重点高中情态动词讲解
高中英语情态动词讲解
一、情态动词用法1.情态动词的具体用法A.能干can/could do; (经过努力)能干be able to (have the ability to do, be capable of doing)B.必须干/不得不干must / have to do; 不许干：mustn’t doC.(经允许)可以干may/ might do; 不可以干：may not doD.应该干should /ought to/ be to/ be supposed to doE.将要干will/would/shall do; (按法律，许诺，命令，威胁，第二三人称中) 将干shall doF.(某段具体时间)常干would do; (现在不做，过去常做) used to doG.宁愿做would rather do; 最好做had better do; 不妨做might as well doH.需要做need do ; 敢做dare do2.情态动词表猜测A.一定是must be ;一定已经干了某事must have done sth.; 一定不是can’t/couldn’t be ; 一定没干过某事can’t/couldn’t have done sth.B.可能（不）是may/might (not ) be; 可能已经（没）干某事may/might (not) have done sth.3.情态动词与虚拟语气A.本应该干某事（带有批评责备之意）should/ ought to have done sth.；本不该做了某事而做了shouldn’t /oughtn’t to h ave done sthB.本不必干某事needn’t have done sth.C.本可以干某事can/could have done sth.D.本（不会）干某事would (not) have done sth.E.真希望做过某事would like to have done sth.F.Should 在表建议的从句中：(a)It’s high time that sb. should do/did sth(b)It’s important sb. (should) do sth.(c)I suggest sb. (should ) do sth.二、理解情态动词Lucy is an outgoing lady. She can play many kinds of musical instruments. Actually, she could play the piano when she was 8 years old. Lucy also keeps taking exercise every day. She says that she has to do some sports because she must keep slim. “You shall get fat soon if you don’t take exercise every day.” She usually says to her friends.As for her, an elegant lady should try to keep fit. However, last week, she found that she might put on weight and she worried and decided to lose her weight. And these days she is always thinking that she may succeed soon if she tries all her best. However, she is always lack of time because she ought to take care of her children.One night after supper, she walked quickly in order to go dancing at the Tomorrow Park and she was late. On her way, she thought that the dancing must havebegun, and the coach could have taught or shown many new moves. She was afraid that her friends might have left before she got there. She was regretful then. She should have had supper earlier, or she could have taken a taxi, and indeed she needn’t have taken a bath in advance. When she reached the park finally, she found nobody was there. She remembered suddenly that it had been reported on the radio that there would be a heavy rain that night.思考每个加黑的情态动词的含义；什么时候用情态动词的完成式，分别表达什么意思。
高中英语知识点归纳情态动词的情态和语气
高中英语知识点归纳情态动词的情态和语气高中英语知识点归纳：情态动词的情态和语气情态动词是英语中常见的一类动词，用来表示说话人的某种态度、意愿、能力等。
它们在句中通常与其他动词搭配使用，帮助表达某种含义。
本文将对情态动词的情态和语气进行归纳。
一、情态动词的情态含义1. Can“Can”表示某种能力或可能性。
当用于陈述句时，表示某人具备某种能力。
例如：- I can swim.（我会游泳。
）- He can speak three languages.（他会说三种语言。
）2. Could“Could”是“can”的过去式，表示过去具备的能力或某种可能性。
它也可以用来表示礼貌地表达请求。
例如：- I could run very fast when I was young.（我小时候跑得非常快。
）- Could you please pass me the salt?（你能请递给我盐吗？）3. May“May”用于表示允许、请求或推测。
例如：- You may go now.（你现在可以走了。
）- May I borrow your pen?（我可以借用你的钢笔吗？）- She may be at home.（她可能在家。
）4. Might“Might”是“may”的过去式，表示过去某种猜测、推测或可能性。
例如：- He might have forgotten the appointment.（他可能忘记了约定。
）- It might rain later.（说不定一会儿会下雨。
）5. Must“Must”表示一种推测或强烈的命令。
例如：- It must be cold outside.（外面肯定很冷。
）- You must finish your homework before going out.（出去之前你必须完成作业。
）6. Shall“Shall”常用于疑问句中，表示征求对方的意见或提出建议。
情态动词高中知识点高三
情态动词高中知识点高三情态动词是一类具有特殊意义和用法的动词，它们在句子中一般与实义动词连用，表示说话人的推测、命令、请求、建议等情态。
在高中英语学习中，掌握情态动词的正确用法至关重要。
本文将介绍情态动词的相关知识点，帮助高三学生更好地运用这一语法现象。
一、情态动词的定义情态动词，又称情态助动词，是用来表示说话人对某种动作或状态的态度、推测、可能性、能力、意愿、义务等情态的一类特殊动词。
常见的情态动词包括can、could、may、might、must、shall、should、will、would等。
二、情态动词的用法1. 表示能力情态动词can表示某人具有能力或可能做某事，could用于过去说法。
例如：- She can speak three languages fluently.（她能说流利的三种语言）- He could lift the heavy boxes when he was younger.（他年轻时能搬起这些沉重的箱子）2. 表示推测和可能性情态动词may、might、could用于表示推测和可能性。
may用于表示较为肯定的推测，might和could表示推测的可能性较小。
例如：- The weather is cloudy, it may rain later.（天气多云，可能会下雨）- He might be late for the meeting.（他可能会迟到会议）3. 表示义务和建议情态动词must表示说话人对某种行为具有强烈的责任感或坚决要求，should表示建议。
例如：- We must obey the laws of the country.（我们必须遵守国家的法律）- You should apologize to your friend for your mistake.（你应该为你的错误向朋友道歉）4. 表示许可和请求情态动词can、may、could用于表示允许和请求。
情态动词知识点总结高中
情态动词知识点总结高中情态动词是英语中一个重要的语法现象，它们能够表达说话者的情感、态度、意愿等，以及表达说话者对事件的推测、猜测、可能性等。
了解情态动词的用法，能够帮助我们更准确地表达自己的意思，也有助于我们理解他人的意图。
本文将对情态动词的概念、用法、以及常见的情态动词进行总结和归纳，以便于读者更深入地理解情态动词的使用。
一、情态动词的概念情态动词（Modal Verb）是一类特殊的助动词，用来表示说话者的情感、态度、意愿等，以及表达说话者对事件的推测、猜测、可能性等。
情态动词通常用于句子的前面，后面跟动词原形，用来构成不同的语法结构和表达不同的含义。
英语中常见的情态动词有can、could、may、might、must、shall、should、will、would、ought to等。
这些情态动词具有一些共同的特点，比如不能独立完成谓语，后面必须跟动词原形；在疑问句和否定句中，情态动词的位置要发生变化等。
二、情态动词的用法1. 表示能力和可能性can与could表示说话者的能力或者对某种事情的可能性，其中can用于现在时，could用于过去时。
比如：I can speak Spanish.（我会说西班牙语。
）She could swim when she was five.（她五岁的时候就会游泳。
）may与might也表示可能性，may 用于现在时，might 用于过去时。
比如：It may rain tomorrow.（明天可能会下雨。
）I thought she might come.（我以为她可能会来。
）2. 表示请求和建议will与would可以表示请求，will用于肯定句，would用于否定句和疑问句。
比如：Will you please help me?（你能帮帮我吗？）I would like to go with you.（我想和你一起去。
）shall与should也可以表示请求或者建议，should更多地表示建议。
高中英语知识点归纳情态动词的用法与义项
高中英语知识点归纳情态动词的用法与义项情态动词是英语中一个重要的语法现象，是一种特殊的动词形式，用来表示说话人的态度、意愿、可能性、能力、推断等。
情态动词一般不能单独使用，而是与其他动词连用，构成动词词组来表示各种意义。
下面是对高中英语知识点归纳情态动词的用法与义项的总结。
一、情态动词的意义划分：1. 可能性（Possibility）情态动词：may, might, could, can用法：- may, might, could用于表示事情有可能发生或存在；- can主要用于表示某人具备某种能力。
示例：- It may rain tomorrow. (明天可能会下雨)- He might be at home. (他可能在家)- The key could be in the drawer. (钥匙可能在抽屉里)- I can speak Spanish. (我会说西班牙语)2. 动作愿望（Desire）情态动词：would like, want, wish用法：- would like用于表示客气地提出请求或愿望；- want用于表示强烈的需求或欲望；- wish用于表示遗憾或对现在情况的不满或希望。
示例：- I would like to have a cup of coffee. (我想来一杯咖啡)- She wants to go shopping. (她想去购物)- I wish I had more free time. (我希望我有更多的空闲时间) 3. 推测与推断（Speculation）情态动词：must, may, might用法：- must用于表示说话人根据某种依据做出肯定的推测； - may, might用于表示可能性的推测。
示例：- It must be raining outside. (外面肯定在下雨)- He may/might be busy right now. (他可能正忙)4. 动作能力（Ability）情态动词：can, could用法：- can表示某人具备某种能力；- could表示过去的能力或给予请求、许可的非正式方式。
高中英语知识点归纳情态动词和实义动词的用法
高中英语知识点归纳情态动词和实义动词的用法情态动词和实义动词是高中英语中常见的两类动词，它们具有不同的用法和含义。
下面将对情态动词和实义动词的用法进行归纳总结。
一、情态动词的用法情态动词是表示说话人的语气、态度、情感等方面的动词，常用的情态动词有can，could，may，might，must，shall，should，will，would等。
情态动词的用法如下：1. 表示能力和技能：- can 和 could 表示能力，主要用于肯定句和疑问句中。
- can 用于现在和将来时，could 用于过去时。
- She can swim.（她会游泳。
）- Could you play the guitar?（你会弹吉他吗？）2. 表示许可和禁止：- can 和 may 表示许可，可以用于肯定和疑问句中。
- cannot 和 must not 表示禁止。
- You can go now.（你现在可以走了。
）- May I use your phone?（我可以用一下你的手机吗？）- You must not smoke here.（你不能在这里抽烟。
）3. 表示推测和可能性：- may，might 和 could 表示可能性，可用于肯定和疑问句中。
- may 和 might 可用于现在和将来时，could 可用于过去时。
- He may come tomorrow.（他明天可能来。
）- Could it be true?（这可能是真的吗？）4. 表示义务和建议：- must 和 have to 表示义务，表示说话人的主观意愿。
- should 和 ought to 表示建议或期望。
- We must finish our homework.（我们必须完成作业。
）- You should see a doctor.（你应该去看医生。
）二、实义动词的用法实义动词是指具有实际意义的动词，用来表示具体的动作、状态或变化。
高考情态动词重点讲解
高中情态动词重点讲解情态动词的语法特征情态动词主要有can, may, must, could, might, shall , should, will, would, ought to, need, dare等。
1）情态动词不能表示正在发生或已经发生的事情，只表示期待或估计某事的发生。
2）情态动词除ought 和have 外，后面只能接不带to 的不定式,即动词原形。
3）情态动词没有人称，数的变化，即情态动词第三人称单数不加-s。
4）情态动词没有非谓语形式，即没有不定式，分词等形式。
情态动词表推测形式肯定的推测：must否定的推测：can’t couldn’t可能的推测：may might can could疑问的推测：can could2. 时间对过去：情态动词+完成式（have done\have been done）对正在进行：情态动词+be doing对现在或将来：情态动词+do不同的“肯定”程度可按下列层次排列：He is at home. (事实)He must be at home.（非常肯定的推断）He could be at home.（很可能）He ought to be at home.（很可能）He may be at home.（仅仅可能而已）He might be at home.（或许, 非常不确定）He might not be at home.（也许不在家）He may not be at home. （比might可能）He couldn’t be at home.（很可能不在家）He can’t be at home.（一定不在家）He isn't at home.（事实）高考常用情态动词辨析can\ could\ be able to表示能力can和be able to都表示能力(Ability)，意思上没多大区别。
但can只有现在和过去时，而be able to则有更多的形式。
高一常见知识点梳理情态动词与情态副词
高一常见知识点梳理情态动词与情态副词情态动词是英语中一类特殊的动词，用来表示说话人对动作或状态的态度、意愿、推测、能力等。
情态副词则是用来修饰情态动词的副词。
在高一的英语学习中，情态动词与情态副词是非常重要的知识点。
本文将对高一常见的情态动词与情态副词进行梳理和解析。
一、常见的情态动词1. can（能够）can用来表示能力、许可或可能性。
例如：- She can speak English fluently.（她能够流利地说英语。
）- Can I borrow your pen?（我可以借用你的钢笔吗？）- It can't be true!（这不可能是真的！）2. could（可以）could表示过去的能力、允许或可能性，也可以用来表示委婉语气。
例如：- When I was younger, I could run very fast.（当我年轻的时候，我跑得很快。
）- Could I use your computer for a moment?（我可以用你的电脑一下吗？）- Could you please pass me the salt?（你能请递给我盐吗？）3. may（可能）may表示可能性、允许或请求的委婉语气。
例如：- It may rain tomorrow, so take your umbrella with you.（明天可能会下雨，所以记得带上雨伞。
）- May I go to the bathroom?（我可以去洗手间吗？）- May I have another piece of cake, please?（请问我可以再来一块蛋糕吗？）4. might（可能）might用来表示较小的可能性或建议。
例如：- It might rain later, so you should bring a raincoat.（天气可能会下雨，所以你应该带一件雨衣。
）- You might want to try the new restaurant downtown.（你可以试试市区的那家新餐厅。
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重点高中情态动词讲解————————————————————————————————作者：————————————————————————————————日期：情态动词专项讲解1. China is developing its high-speed train technology fast, so it _____be good enough to catch up with the best.A. mayB. mightC. mustD. should2. Then some other interesting reasons appear, such as “It's so smoggy that I ______find my way to office."A. mustn’tB. won’tC. can’tD. shouldn’t3. "The world is big, and I want to see it," wrote a teacher in her resignation letter. _____ you quit your job to travel the world?A. MustB. MightC. ShouldD. Would【答案揭晓】CCD一、情态动词的定义情态动词是一种本身有一定的词义，但要与动词原形或其被动语态一起使用，给谓语动词增添情态色彩，表示说话人对有关行为或事物的态度和看法，认为其可能.应该或必要等。
情态动词后面加动词原形。
1. No driving electric motorbikes in some areas is a rule that we shall obey in Fuzhou.必须.一定（法律.法规等）动词原形2. Women who are exposed to second-hand smoke during their pregnancy can be at risk of abortion.能，会，可以(表示有能力或机会) 动词原形二、常考情态动词的关键用法(一) can1. －Jim，it is time you went to bed．You need to get up early tomorrow.－It’s not fair，Mary can stay up till ten hut I have to go to bed at eight.可以(表示允许)2.If it were not for the fact that she can't sing，I would invite her to the party.能，会，可以(表示有能力)3. Luckily, iron can be reworked and mistakes don't have to be thrown away能够，可以(表示某事物的特点)4.Peter can be really difficult to get along with at times even though he’s a nice person in general.有可能;有时会5. I cannot choose but to go.不能，无法(用于否定句，表示情况不允许)6.I cannot thank you enough,it has been a wonderful day.再.....也不为过( 也可以用can never/hardly.....too much)7.—Is Jack on duty today?—It can't be him.It’s his turn tomorrow.不可能(can可用于否定句/疑问句中表猜测，此句表对现在的猜测)8.—Can he have been chosen as captain of the football team? —Yes, he must have.可能（can可用于否定句/疑问句中表猜测，can have done表示对过去的猜测猜测）9. This old lady was struggling out of the train and I said, 'Oh, can I help you?'能(通常用于疑问句，表示建议或提议帮忙)10. Can you just lift the table for a second?(用于疑问句时,can 表示礼貌的请求，而can't 表示强烈请求）(二) could1.For my return journey, I felt I could afford the extra and travel first class能;会(表示发生在过去的能力)2.–I feel bored with nothing interesting to do.--You could watch TV. There will be a very good Hollywood film on this evening.可以(表示提议或建议)3. –Could I have a look? --Of course you can.表许可（委婉的语气用could，回答时用can）4. An improvement in living standards could be years away.可能(表示某事可能属实或可能发生，对将来或者现在发生事情的肯定猜测)5.When the ship sailed out from Thailand, the 16 sailors on board couldn't have thought_ that only half of可能(could have done，只用于否定句和疑问句中，表示对过去发生事情的猜测)them would return again. 高.考.资.源.网6. He did not regret saying what he did but felt that he could have expressed it differently.(could have done用于肯定句中，表虚拟语气，表示过去本有可能发生的事情但却并未发生，不能使用can’t have done的形式)（三）be able to1.Even if standardized tests like the SAT could show a stude nt’s academic proficiency（学业水平）,they will never be able to test things like confidence, efforts and willpowe r, and are unable to give us the full picture of a student’s potentialities（潜力）【解析】be able to 解释为“能够”，有各种时态的形式。
注：can 和be able to 都可以表示能力.can泛指一般的能力,而且只有两种形式,即:can, could．be able to 则主要指具体做到了某件事的能力，其形式主要是靠be 发生变化，所以形式比can 多．可以说：I can swim. I am able to swim.但是不能说：All the people could escape from the big fire in time.只能说：All the people were able to escape from the fire in time.(四) may1.Every one of us may plant a tree in the school, or organize a thorough cleaning on the campus.可以(表许可)2. （1）S ome people who don’t like to talk much are not necessarily shy；they may just be quiet people.有可能，也许(may表猜测，用于肯定或否定句中，此例表示对现在某种情况的猜测）（2）You might just as well tell the manufacturer that male customers may not like the design of the furniture.也许，可能(may表猜测，用于肯定或否定句中，may not 为“可能不”的意思)（3）I can’t find my purse anywhere.—You may have lost it while shopping.(may表猜测，may have done表示对过去或者现现在已经完成的动作的肯定猜测)3.May God bless you!祝;但愿(五) might1.I was wondering if I might ask you a favor?可不可以，能否(用于礼貌地打断别人.提出问题.做出请求或引出接下来要说的话)2.—Excuse me.Is this the right way to the Summer Palace? —Sorry，I am not sure.But it might be.可能(表不是很有把握的猜测，语气比may 弱)3.—Where is my dictionary? I remember I put it here yesterday.—You might have put it in the wrong place.(might表猜测，might have done则表示对过去或者现已完成的动作的肯定猜测=may have done)4. I told your friend how to get to the hotel，but perhaps I might have driven her there.（此处，might have done表虚拟语气，意为“过去原本可能/可以做到的事而未做”）5.This holiday isn’t much fun; we might\may as well be back home.只好(做);(做…)也无妨(六) will1.The low test score, they think, will make it impossible for them to get into a good college.将（表示将来）2.You will carry out these instructions and report back into this afternoon.(表示将来的正式安排)3.He will become her senior adviser--- her deputy, if you will.愿意4.-----Anyone, answer the phone? ------ I will.临时的决定5. Mary will sit for hours reading.The window will not open, however hard he tries.表现在经常反复的动作或者趋向6. Man will die without air.表必然性(七) would1.John promised his doctor he would not smoke，and he has never smoked ever since.（will 的过去式，用于转述）将2.Hurry up! It would be a shame to miss the beginning of the play.She’d be a fool to accept it.将，将会(表示判断或看法)3.She wouldn’t change it even though she knew it was wrong.不愿(表示意愿)4.When he had a problem to solve，he would work at it until he found an answer.常常（表示过去的习惯）She would be always the first to offer to help.The car wouldn’t start this morning.老是，总是（表趋向）(八) shall1.We/I shall call you back this afternoon.(表将来用于No.1人称)2.--- Has Mr. Tom White arrived? --- Yes, already. Shall he wait outside or just come in?(shall用在疑问句中，且主语为No.1/No.3人称，表示征求对方意见)3.（1）—What does the sign over there read?—“No person shall smo ke or carry a lighted cigarette，cigar or pipe in this area.”（2）“The interest s hall be divided into five parts，according to the agreement made by both sides，”declared thejudge.（3）You shall get the answer tomorrow.（4）They shall not be allowed in after 11 p.m.(shall用在陈述句中，且主语为No.2/No.3人称时，表示允诺、命令、警告、决心或规定)(九) should/ought to1.—I think I’ll give Bob a ring.—You should. You haven’t been in touch with him for ages.应该;应当2. (1) —Margaret should not stay at home all day long in front of the TV.应该，必须(表示给出指示或公布官方命令)(2) —That' s right．She ought to go to the fitness center with us.应该，必须3.There should not be any difficulty about passing the road test since you have practised a lot.应该，可能(表示预期或可能性)4.If you should be fired, your health and pension benefits will not be automatically cut off将要，假定要(用在虚拟条件从句中表示事件发生的可能性)5.I insisted that we should have a look at every car应该(用在某些动词、名词之后that引导的虚拟语气从句中)6. It’s surprising/strange that he should be a thief.竟然（用在某些adj./n. 之后that 引导的虚拟语气中）7.—I’ll tell Mary about her new job tomorrow.—You should have told her last week.(should have done=ought to have done，表示本应该做的事而未做)8.You oughtn’t to have been late for yesterday’S class meeting，as it was so important．(ought not to have done=should not have done，表示过去本不该做的事却做了)注：ought to与should的用法区别如下1. 一般说来，两者可替换，只是ought to语气稍重。