小学英语情态动词知识点及练习

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(完整)英语语法 情态动词及练习题

(完整)英语语法 情态动词及练习题

情态动词一、知识梳理/提炼1. can和could的用法表示能力或客观可能性,还可以表示请求和允许。

如:Can you finish this work tonight?Man cannot live without air.— Can I go now?— Yes, you can.注意:①could也可表示请求,语气委婉,主要用于疑问句,不可用于肯定句,答语应用can (即could不能用于现在时态的简略答语中)。

如:Could I come to see you tomorrow?Yes, you can。

(否定答语可用No, I'm afraid not。

)②can表示能力时,还可用be able to代替。

如:I'll not be able to come this afternoon。

2。

may和might的用法1)表示许可.表示请求、允许时,might比may的语气更委婉一些,否定回答时要用mustn't表示“不可以"、“禁止"、“阻止”之意.如:You may drive the car.— Might I use your pen? — No,you can’t/ mustn't. Yes, you can/may. 用May I .。

. 征询对方许可在文体上比较正式,在口气上比较客气。

在日常口语中,用CanI ... 征询对方意见在现代口语中更为常见.2) 用于祈使句中表示祝愿.如:祝你成功! May you succeed!3)表示推测、可能(疑问句不能用于此意)。

他现在可能很忙. He may be very busy now。

3。

must和have to的用法1) 表示必须、必要。

如:You must come in time.回答must引出的问句时,如果是否定的回答,不能用mustn't,而要用needn't或don't have to。

小学情态动词的句型转换讲解及练习

小学情态动词的句型转换讲解及练习

小学情态动词的句型转换讲解及练习情态动词是英语语法中的一个重要组成部分,是文章中用于表达推测、猜测、建议等含义的动词。

小学阶段是英语语言研究的重要时期,因此了解情态动词的正确使用十分必要。

什么是情态动词情态动词是一种助动词,常常用于表示某种能力、必要性、愿望、推测等情况。

动词本身表示的是动作或状态,而情态动词则表示说话人的态度或语气。

常见的情态动词有:- can- could- may- might- must- shall- should- will- would情态动词的句型转换在句子中,情态动词的位置可以变化,因此我们可以利用这一点来进行句型的转换。

以下是一些常见的情态动词句型转换:1. 直述句→ 疑问句直述句:They can swim.疑问句:Can they swim?2. 直述句→ 否定句直述句:He should finish his homework.否定句:He should not finish his homework.3. 直述句→ 疑问句+否定句直述句:You may eat the cake.疑问句+否定句:May you not eat the cake?现在我们来做一些练,更好地掌握情态动词的句型转换。

练题1. 直述句:They can play the guitar.疑问句:否定句:2. 直述句:She should go to bed early.疑问句+否定句:3. 直述句:I will finish my homework tomorrow.否定句:疑问句+否定句:练答案1. 直述句:They can play the guitar.疑问句:Can they play the guitar?否定句:They cannot play the guitar.2. 直述句:She should go to bed early.疑问句+否定句:Shouldn't she go to bed early?3. 直述句:I will finish my homework tomorrow.否定句:I will not finish my homework tomorrow.疑问句+否定句:Won't I finish my homework tomorrow?以上是小学情态动词的句型转换讲解及练习,希望能对您有所帮助。

情态动词的用法及练习(附答案)

情态动词的用法及练习(附答案)

情态动词的用法及专项练习第1 & 2类:第3类1.could have p.p.①指过去某事有可能发生, 但并未.真的..发生。

They could have won the race, but they didn't try hard enough.He could have studied harder, but he was too lazy and that's why he failed the exam.②指过去有能力做某事, 但并未真的...做过。

I could have stayed up late, but I decided to go to bed early.Julie could have bought the book, but she borrowed it from the library instead.③对过去的发生事情做出一种猜测,但实际上并不知道真假。

仅仅是做一种观点上的表达。

He could have got stuck in traffic.He could have forgotten that we were meeting today.He could have overslept.2. may / might have p.p.(用法与could have p.p.第③点相同)对过去的发生事情做出一种猜测,但实际上并不知道真假。

仅仅是做一种观点上的表达。

He might have got stuck in traffic.He might have forgotten that we were meeting today.He might have overslept.3. couldn't have p.p.渴望、期望做某事, 但由于外部原因不可能做成, 即便是很想做。

是一种虚拟语气。

I couldn't have arrived any earlier. There was a terrible traffic jam (= it was impossible for me tohave arrived any earlier).He couldn't have passed the exam, even if he had studied harder. It's a really, really difficult exam.4. should / ought to have p.p.有一个好主意,该做而没有做。

情态动词知识点练习题

情态动词知识点练习题

情态动词知识点练习题一、情态动词单项选择题1.__________ you please take out the rubbish? It’s your turn now.A.Must B.Should C.Could D.Might【答案】C【解析】【分析】【详解】句意:你能把垃圾拿出去吗?现在轮到你了。

考查情态动词。

Must必须;Should应该;Could能,可以;Might可以。

Could you please…?你能做……吗?/请你做……,好吗?表示请求的句型,固定句型,故选C。

2.—I cannot find my pen. ________ I borrow yours?—Sure.A.Can B.Must C.Should D.Would【答案】A【解析】【详解】句意:——我找不到我的钢笔。

我可以借你的吗?——当然。

考查情态动词辨析。

can可以;must必须;should应该;would将。

根据“I borrow yours”可知,此处应用can表请求允许,希望能借对方的钢笔用一下,故选A。

3.You have worked for several hours. You’d better ________ the windows and have a good rest. A.stop to clean B.to stop cleaning C.stop cleaning D.to stop to clean【答案】C【解析】【分析】【详解】句意:你已经工作好几个小时了。

你最好停止擦窗户,好好休息一下。

考查固定搭配。

根据“had better do sth.”可知,此空需要动词原形;再者根据“have a good rest”和固定搭配“stop doing sth.”可知,是停止做某事,因此stop cleaning符合句意。

故选C。

4.—Mum, must I stay there the whole day?—No, you ________. You ________ come back after lunch, if you like.A.mustn’t; can B.needn’t; must C.needn’t; may D.mustn’t; might【答案】C【解析】【详解】句意:——妈妈,我必须一整天都待在那儿吗?——不,你没必要。

情态动词知识点练习

情态动词知识点练习

情态动词知识点练习一、情态动词单项选择题1.— 3,000 yuan for such a blouse! You ________ be joking.— It is made of silk, so it costs.A.can B.may C.must D.need【答案】C【解析】【详解】句意:——这样一件衬衫三千元!你一定是在开玩笑。

——这是丝绸做的,所以很贵。

考查情态动词。

can能;may可能;must必须,一定;need需要。

根据空格前的句子“3,000 yuan for such a blouse! ”可知,说话者持有一种怀疑的态度,故空格处表达的是“一定是在开玩笑”,must be“一定是”,故选C。

2.Life is like riding a bike. To keep our balance, we ________ keep moving.A.needn’t B.can C.must【答案】C【解析】【详解】句意:人生就像骑单车。

为了保持平衡,我们必须不断前进。

考查情态动词。

needn’t不必;can可以;must必须。

根据“Life is like riding a bike.”结合常识可知骑单车时为保持平衡必须不断前进,用must符合语境。

故选C。

3.—Is that Mr Zhou?—It ________ be him. He has gone to Beijing.A.can B.may C.can’t D.shouldn’t【答案】C【解析】【详解】句意:——那是周先生吗?——肯定不是他。

他去了北京。

考查情态动词。

can能,能够;may可能;can’ t不可能,表示推测;shouldn’t不应该;根据“He has gone to Beijing.”可知,那个人不可能是周先生,故选C。

4.—I have been to the Moon several times.—You ________ be joking! It is impossible!A.can B.may C.must【答案】C【解析】【分析】句意:——我已经到月球好几次了。

小学英语情态动词知识点及练习

小学英语情态动词知识点及练习

情态动词【知识要点】:情态动词(Modal verbs)本身有一定的词义, 表示语气的单词。

但是不能独立作谓语, 只能和动词原形一起构成谓语。

情态动词用在行为动词前, 表示说话人对这一动作或状态的看法或主观设想。

情态动词虽然数量不多, 但用途广泛, 主要有下列: can (could), may (might), must, need, ought to, dare (dared), shall (should), will (would) must not.情态动词无人称和数的变化, 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"。

疑问形式是将情态动词提至主语前。

个别情态动词有现在式和过去式两种形式, 过去式用来表达更加客气, 委婉的语气, 时态性不强, 可用于过去, 现在或将来。

情态动词属非及物动词, 故没有被动语态。

【典型例题】:【专题一】:can和could的用法【例1】Can you lift this heavy box?(体力)【解析】表示能力(体力、知识、技能)【练习】1.Mary speak three languages.(知识)2... yo.skate?(技能)此时可用be able to代替。

Can只有一般现在时和一般过去式;而be able to 则有更多的时态。

I’ll not be able to come this afternoon.当表示“经过努力才得以做成功某事”时应用be able to,不能用Can。

【例2】-----Can I go now?----.Yes.yo.can..No.yo.can’t.【解析】表示请求和允许。

此时可与may互换。

在疑问句中还可用could,might 代替,不是过去式,只是语气更委婉,不能用于肯定句和答语中。

【练习】---- I come to see you tomorrow?---.Yes.yo.....----No.yo..../I’.afrai.not.【例3】Can this be true?【解析】表示推测(惊讶、怀疑、不相信的态度),用于疑问句、否定句和感叹句中。

英语情态动词专题练习(及答案)含答案

英语情态动词专题练习(及答案)含答案

英语情态动词专题练习(及答案)含答案一、选择题1.— 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’t2.To my joy, we_________ go to the bank. Mary has lent us some money.A.shouldn’t B.needn’t C.couldn’t D.wouldn’t 3.—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 4.—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’t5.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.need6.Our Chemistry teacher always tells us we ________ be too hardworking before the exams. A.mustn’t B.shouldn’t C.needn’t D.can’t 7.—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.need8.—________ you give me a hand? I can’t put up the poster by myself.—No problem.A.Could B.Should C.Need D.Must 9.Exercise is helpful but it ________ be regular (规律的) exercise.A.must B.may C.can D.need10.You'd better __________ hard from now on, __________ you will fail the exam. A.work; and B.working; or C.working; and D.work; or 11.—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 12.It’s of great importance to protect the environment. Each of us ________ take an active part in it.A.can B.may C.would D.should13.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 14.—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’t15.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 climbed16.—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't17.---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.will 18.—Amy, I hear you've got many foreign coins._______ I have a look?—Of course, I'll fetch them for you.A.May B.MustC.Should D.Need19.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.should20.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 s afe!—Sorry. I won’t do it any more.A.not driving B.not to drive C.no driving D.not drive 23.Think twice before making a decision, or you __________ get into trouble.A.may B.can't C.shouldn't D.mustn't 24.Don’t cross the road until the traffic lights tur n green. A car_______hit you.A.need B.may C.should D.must25.When you visit a museum, some instructions should ________ and we’d better not________ them.A.pay attention to; be against B.be paid attention; againstC.be paid attention to; against D.be paid attention to; be against 26.—Seventy dollars for such a dress! You ________ be joking!—I’m serious. It’s made of silk from Hangzhou.A.must B.need C.will D.can27.—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.can28.To avoid ________, we’d better ________ the parents’ meeting online.A.gather; hold B.gathering; hold C.gather; holding D.to gather; to hold 29.—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’t30.—How do you like my new dress?—Well, if I ________ say, it is not suitable for you.A.may B.must C.have to D.should 31.— 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 32.—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 33.—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.shall34.—Is that Mr Zhou?—It ________ be him. He has gone to Beijing.A.can B.may C.can’t D.shouldn’t 35.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 36.—Is it usually warm in Yancheng in May?—Yes. But it _______ be rather cold sometimes.A.must B.should C.would D.can37.—Do we have to finish this today?—Yes, you ________ . Today is the last day.A.would B.may C.can D.must 38.—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.may39.—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.need 40.Cars ________ give way to walkers on some roads in Binhai, or the drivers will be fined. A.may B.will C.can D.must 41.—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 42.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 43.—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 44.—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.need45.—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.need46.—________ I see your ID card? We have to check your personal information.—Sure. Here you are.A.May B.Need C.Should D.Must47.—I don’t care what people think.—Well, you _______ . Some opinions are worth weighing.A.should B.might C.could D.would48.You ________ drive after drinking alcohol(酒). It’s against the law.A.mustn’t B.needn’t C.couldn’t D.wouldn’t49.—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 ne ed; mend D.need; to mend50.—Shall I tell him the change of the time right now?—I’m afraid you ________, otherwise he will be late for the meeting.A.can B.may C.must D.need【参考答案】***试卷处理标记,请不要删除一、选择题1.C解析:C【详解】句意:——佐伊,你认为网上购物最大的优势是什么?——至少我不需要花很多时间逛商店。

情态动词知识点练习

情态动词知识点练习

情态动词知识点练习一、情态动词单项选择题1.— 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’t【答案】D【解析】【详解】句意:——那边的男孩是汤姆吗?他经常穿那样的夹克。

——那不可能是他。

他今天没来上学。

考查情态动词。

needn’t不必;shouldn’t不应该;mustn’t禁止;can’t不可能。

根据“He is absent from school today”可知,推测那个男孩一定不是汤姆,否定推测用can’t,故选D。

2.—I cannot find my pen. ________ I borrow yours?—Sure.A.Can B.Must C.Should D.Would【答案】A【解析】【详解】句意:——我找不到我的钢笔。

我可以借你的吗?——当然。

考查情态动词辨析。

can可以;must必须;should应该;would将。

根据“I borrow yours”可知,此处应用can表请求允许,希望能借对方的钢笔用一下,故选A。

3.—________ I take this book away?—No, you mustn’t. You ________ read it only here.A.Must;can B.May;can C.Must;may D.Can;may【答案】B【解析】【详解】句意:——我可以带走这本书吗?——不,你不能。

你只能在这里阅读。

考查情态动词。

must必须;can能;may可以。

根据“No, you mustn’t”可知,第一空是用may引导的一般疑问句。

第二空表示“只能在这读”,故选B。

4.—We’ve ordered too much food. I ________ eat any more.—Never mind. Let’s take it home.A.can’t B.mustn’t C.needn’t D.shouldn’t【答案】A【解析】【详解】句意:——我们点的食物太多了。

情态动词知识点练习题

情态动词知识点练习题

情态动词知识点练习题一、情态动词单项选择题1.You shouldn’t ________ your daughter at home. She can receive better ________ at school. A.educate; educate B.education; educationC.educate; education D.education; educate【答案】C【解析】【详解】句意:你不应该在家教育你的女儿。

她应该在学校接受更好的教育。

考查词义辨析。

educate教育,动词;education教育,名词。

第一个空情态动词+动词的原形,故用动词;第二个空作宾语,故用名词。

故选C。

2.— What do you think of the show yesterday?— Some of them were really good but others ________ be better.A.will B.must C.need D.can【答案】D【解析】【详解】句意:——你觉得昨天的演出怎么样?——有一些真的很好,但其他的可以更好。

考查情态动词。

will将要;must必须;need需要;can可以。

根据“were”可知,时态是一般过去时,故A选项排除;本句指一些节目在原有水平基础上可以做得更好,表有能力做某事,用can。

故选D。

3.It’s getting dark. You’d better ________ out by yourself. It’s dangerous.A.not to go B.not go C.to go【答案】B【解析】【详解】句意:天黑了。

你最好不要一个人出去。

这很危险。

考查情态动词。

had better (not) do sth.为固定句型,意为“最好(不要)做某事”;根据“It’s dangerous.”可知,这里指最好不要出去,故选B。

情态动词知识点练习

情态动词知识点练习

情态动词知识点练习一、情态动词单项选择题1.—Look at the man running on the ground. Is it Mr Wang?—It ________ be him. I saw him go to the library just now.A.mustn’t B.can’t C.needn’t【答案】B【解析】【详解】句意:——看那个在操场跑步的男人。

是王老师吗?——肯定不是他。

我刚才看见他去了图书馆了。

考查情态动词。

mustn’t禁止;can’t不可能;n eedn’t不需要。

根据下文“I saw him go to the library just now.”可知,不可能是他,表示语气强烈的否定推测,应用can’t。

故选B。

2.You ________ swim here! Look at the sign. It says “No swimming”.A.mustn’t B.couldn’t C.needn’t D.won’t【答案】A【解析】【详解】句意:你不能在这里游泳!看这个标志。

上面写着“禁止游泳”。

考查情态动词。

mustn’t禁止;couldn’t不可以;needn’t不必;won’t不会。

根据“It says‘No swimming’.”可知是禁止游泳。

故选A。

3.I’d love to see the movie with you ,but I’m afraid I couldn’t ________.A.make it B.do it C.makes this D.do this【答案】A【解析】【分析】【详解】句意:我很想和你一起去看电影,但是我恐怕去不了。

考查固定搭配。

make it达到预定目标、及时抵达;do it做它;makes this做这个;do this 做这个。

根据句意可知,不能去看电影。

固定搭配“make it达到预定目标、及时抵达”符合句意。

情态动词知识点练习

情态动词知识点练习

情态动词知识点练习一、情态动词单项选择题1.Listen up, guys! Everyone ________ wear a mask. Go and buy one if you don’t have one. A.can’t B.can C.mustn’t D.must【答案】D【解析】【详解】句意:听着,大家!每个人都必须戴口罩。

如果你没有,就去买一个。

考查情态动词。

can’t不能;can可以;mustn’t禁止;must必须。

根据“Everyone...wear a mask. Go and buy one if you don’t have one.”可知,此处表示必须戴口罩,用must。

故选D。

2.—Do you think Tim will be chosen as the leader of the football team this year?—It ________ be him. He has no sense of teamwork.A.can’t B.mustn’t C.can D.must【答案】A【解析】【分析】【详解】句意:——你认为蒂姆今年会被选为足球队的队长吗?——不可能是他。

他没有团队精神。

考查情态动词。

can’t不可能;mustn’t禁止;can能;must必须。

根据“He has no sense of teamwork.”他没有团队精神,可知蒂姆“不可能”被选为足球队的队长,表示否定推测用can’t,故选A。

3.— _________ you give me some advice about protecting the environment(保护环境)?—Yes, I think it’s important to do garbage sorting(垃圾分类).A.Can B.Must C.May D.Need【答案】A【解析】【详解】句意:——你可以给我一些关于保护环境的建议吗?——是的,我认为做垃圾分类很重要。

情态动词知识点练习题

情态动词知识点练习题

情态动词知识点练习题一、情态动词单项选择题1.—May I park my car here?—No, you ________. Can’t you see the sign ?A.mustn’t B.wouldn’t C.needn’t D.couldn’t【答案】A【解析】【详解】句意:——我可以把车停在这儿吗?——不,你不能。

你没看见“禁止停车”的标志吗?考查情态动词。

mustn’t禁止;wouldn’t将不会;needn’t不必;couldn’t不能;根据“Can’t yo u see the sign...”可知,此处指的是禁止停车,应用mustn’t表示,故选A。

2.—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 mend【答案】A【解析】【详解】句意:——我想足够了。

我们不需要做这么多椅子。

——我不这么认为。

因为将近四分之一需要修理。

考查need的用法。

根据“I think they are enough. ”可知,第一处表示“不需要”,排除BD。

need doing=need to be done表被动,故选A。

3.We must ________ Putonghua at school.A.speak B.speaking C.to speak【答案】A【解析】【详解】句意:我们在学校必须讲普通话。

考查情态动词用法。

must“必须”,情态动词,其后应用动词原形。

故选A。

4.—Mum, ________ I finish my writing now?—No, you needn’t. You may have dinner first.A.can B.could C.must D.might【答案】C【解析】【详解】句意:——妈妈,我现在必须要完成写作吗?——不,你不需要。

小学英语语法讲解-动词 情态动词

小学英语语法讲解-动词 情态动词

情态动词一、情态动词的定义:情态动词有词义,但它不能单独作谓语,它必须和其他动词一起构成谓语。

情态动词没有人称和数的变化;它的后面必须跟动词原形。

1、Can I help you? ——Yes, please. / No, thanks.2、Can + 主语+ 动词原形? Yes, ~can. No, ~can’t.3、Can I borrow your book?----Yes,of course.4、Can I write on the book? ------No, you can’t\mustn’t.5、Could \Can you help me?---- Yes,of course.\Certainly.\ Sure.6、Could \Can you tell me the way to the Zoo?7、May I come in ?----- Come in, please.8、May I sit here?----- Yes, please.\Sorry, please don’t.9、May I have some Coke?---- Yes, of course.10、May/ Could / Can I speak to Tom? -----Speaking. Who’s calling?11、should 、shouldn’t 表示劝告:1) He should get up early.2) She shouldn’t play computer game too much.12、Should +主语+动词原形? Yes, ~should.\ No, ~shouldn’t.13、表示建议“你愿意…吗”Would you like to go shopping with me?-----Yes, I’d love to. /I’d love to. But I’m busy now.14、就餐用语Would you like something to eat\drink? ----Yes, I’d like…15、shall用于第一人称(I, we), 可以表示“将”和表示建议“……好吗?”1) Where shall we have dinner?2) Shall we go fishing? -----All right. \OK. \Good idea.16、Must + 主语+ 动词原形? ---Yes,~must.\No, ~needn’t.四、相关练习:(一) 用适当的情态动词填空。

情态动词的用法及练习(附答案)

情态动词的用法及练习(附答案)

情态动词的用法及专项练习第1 & 2类:第3类1.could have p.p.①指过去某事有可能发生,但并木真的发生。

They could have won the race, but they didn't try hard enough.He could have studied harder, but he was too lazy and that's why he failed the exam.②指过去有能力做某事,但并未真的做过。

I could have stayed up late, but I decided to go to bed early.Julie could have bought the book, but she borrowed it from the library instead.③对过去的发生事情做出一种猜测,但实际上并不知道真假。

仅仅是做一种观点上的表达。

He could have got stuck in traffic.He could have forgotten that we were meeting today.He could have overslept.2.may / might have p.p.(用法与could have p.p.第③点相同)对过去的发生事情做出一种猜测,但实际上并不知道真假。

仅仅是做一种观点上的表达。

He might have got stuck in traffic.He might have forgotten that we were meeting today.He might have overslept.3.couldn't have p.p.渴望、期望做某事,但由于外部原因不可能做成,即便是很想做。

是一种虚拟语气。

I couldn't have arrived any earlier. There was a terrible traffic jam (= it was impossible for me to have arrived any earlier).He couldn't have passed the exam, even if he had studied harder. It's a really, really difficult exam.4.should / ought to have p.p.有一个好主意,该做而没有做。

小学英语常考情态动词及习题练习

小学英语常考情态动词及习题练习

小学常考情态动词(can,must,should,might)及习题情态动词:情态动词本身具有一定的词义,表示说话人的某种语气或感情,但不能单独作谓语,通常要和行为动词一起构成谓语。

情态动词没有人称和数的变化,适用于所有人称,其后要接动词原形。

一、情态动词can的用法:1、其中情态动词can表能力时意为“能够做某事”,后接动词原形;否定形式为can't或cannot;can的过去式为could。

例:1.Tony can play basketball, but he can't play the piano.Tony会打篮球,但他不会弹钢琴。

2.Can Lily speak Chinese? —Lily会说中文吗?-Yes, she can. —是的,她会。

3.What can you do, Kate? —Kate,你会做什么?-I can play the violin. —我会拉小提琴。

2、其中情态动词can表许可或请求别人的许可时,意为“可以”,后接动词原形,相当于may,但may多用于正式、庄重的场合;can的否定形式为can't 或cannot。

例:You can go now if you like. 如果你想走,现在就可以走了。

-Mark, can I use your pen? —Mark,我能用下你的钢笔吗?-Of course. —当然了。

二、情态动词must表示“必须,应该,一定要”。

●∙主语是第一人称I或we时,表示说话人认为有必要或者有义务做某事;主语是第二、第三人称you、they、he、she等时,表示说话人要求或命令别人做某事。

●∙must的否定形式为must not,缩写为mustn't,意为“不许;严禁”。

●∙must引导的一般疑问句,肯定回答用must,否定回答用needn't或don'thave to,意为“不必”。

小学英语情态动词讲解和练习

小学英语情态动词讲解和练习

Can I use your pen? Yes, here it is. Can you help me? Yes, I can.
我能用一下你的钢笔吗? 当然,给你。 你能帮帮我吗? 是的,当然。
Did you know? When you put not after can, you write it as one word: cannot. Learn these contractions: cannot= can’t Some birds cannot(can’t )fly.
2. 表示可能性时,常用在肯定句中,意为“可能,也许” He may be very busy now. 他现在可能很忙。 He said that she may not be at work today. 他说她今天也许不上班。
3. Can 和 may 都可以表示推测。can 通常用在否定句和疑问句中,may 通常用在肯定句和否定句中。 虽然两者都可以用于否定句,但是程度不同,can’t 的语气比may not 更强。
A. can B. may C. must
II. Read and write.
1. You _____c__a__n_________ (can) borrow my book, if you want. 2. They’ve lost the map and ___c__a__n___n___o__t__ (can) find their way back to the hotel. 3. May I go out to play now? No, you ___m___a___y___n__o__t________(may). 4. If you want to be healthy, you __m___u___s__t__n___o__t_____ (must) eat junk food. 5. You ___m___u___s__t__________ (must) believe yourself.

小升初英语情态动词专题讲解及练习

小升初英语情态动词专题讲解及练习

小升初英语必考点情态动词:情态动词有词义,但它不能单独作谓语,它必须和其他动词一起构成谓语。

情态动词没有人称和数的变化;它的后面必须跟动词原形。

一、情态动词的种类:情态动词有can (could), must, have to, shall (should), will (would)等,这些是小学阶段需掌握的情态动词。

二、情态动词的用法:注意:can not=can’t could not=couldn’t1) 表示能力(体力、知识、技能)。

I can sing.我会唱歌。

He can draw pictures.他会画画。

2) 表示请求和允许。

Could \Can you help me? 你能帮助我吗?---- Yes, of course.\Certainly.\ Sure.Could \Can you tell me the way to the Zoo? 你能告诉我去动物园的路吗?1) must表示必须、必要, 带有命令强制口气;而have to表示不得不,很勉强,强调客观需要。

We must help each other.我们必须互相帮助。

My sister is ill,I have to look after her.我的妹妹病了,我必须要照顾她。

注意:must的否定形式mustn’t表示禁止,意思是“不能,不许”。

在回答由must引起的疑问句时,如果是否定的,不能用mustn’t(禁止,不准),而用needn’t, don’t have to(不必要)。

— Must I do homework now ?—肯定:Yes, you must.否定:No, you don’t have to / you needn’t.应该”,表示劝告、建议等。

注意:should not=shouldn'tI should finish my homework before watching TV.我应该看电视之前完成作业。

情态动词讲解及练习

情态动词讲解及练习

Unit 13 Lesson 4 GrammarA can / could = be able to1 表示水平两种时态can (could),其他时态要用be able to的形式He can speak French.Was/were able to 能够表示成功做成某事的含义* managed to do / succeeded in doing With our help, he was able to build the house.Can I go now? Yes, you can.3 表示推测或可能性,常用于否认句和疑问句Can he be at school?Today is Sunday. He can't be at school.Can’t couldn’t/ Can ? Could? have doneThere is no light in the room. Can she have gone to bed?She can’t have gone to school----- it’s Sunday.Could have done 可用在肯定句中表示过去存有的可能性* may have doneShe could have gone out with some friends yesterday.Could have done 能够表示虚拟语气某事可能发生(并没有发生)It was silly to throw the TV out of the window. It could have hit somebody.批评某人没有完成某事(本能够做某事)You are late again. You could have got up earlier.4 can 表示客观上的可能性*Anybody can make mistakes.B may and might 的用法1 表示请求和允许类似用法can could(更加口语化)May I watch TV now? Yes, you may.2 表示可能性; 猜想might比may更加不确定may/might have done 对过去的揣测*He may be busy these days.May not 可能不;不可能;一定不可3 表示祝愿Wish you success!May you succeed!*C must and have to1 表示必须;一定要能够用have to 代替must 现在;将来的必须而且是主观看法*have to 有多种时态而且强调客观情况I really must stop smoking now.I had to leave early because I wasn’t feeling well.Must I come here?Yes, you must. No, you needn’t. needn’t / don’t have to must not 一定不能做某事mustn’t 2 must 表示推测意思非常肯定“一定是”“一定会”It must be raining outside.Must have done 对过去/完成的推测* must have done, didn’t / hasn’tMust be doing 推测现在正在实行He must have gone over the article, hasn’t he?It must have rained last night, didn’t it?D need and dare 过去时dared情态动词和实意动词的区别A 人称变化B do / to doC 直接否认/ 间接否认can workNeed /dare 肯定句中,实义动词She needs to do it. I dare to do it.使用在否认句,疑问句中,情态动词,实义动词。

小学四年级英语常用语法知识点及练习

小学四年级英语常用语法知识点及练习

小学四年级英语常用语法知识点及练习小学四年级英语常用语法知识点及练习鉴于英语语法的重要性,为了帮助大家把语法学好,应届毕业生店铺为您提供了这篇小学四年级英语常用语法总结,希望对您的英语有所帮助。

(一)情态动词cancan 在英语中有一个特殊的名字,叫做情态动词,表示“能够”,“会”,“能力”后面要跟着表示动作的动词。

没有时态和人称的变化。

表示不能做什么的时候,后面加上not为can not,或者缩写为can’t。

问别人“能…吗?”要把can 放在句子前面,首字母要大写,句尾别忘加上问号。

例句:—I can swing.I can draw. —She can jump.He can play .—We can touch .They can run. —I can’t sing.You can’t see.—She can’t dance.He can’t hea r a car. —We can’t hear an aeroplane.—Can you hear a dog?Can he hear a bus? —Can Lucy write?Can you do it?将下面各组词组成句子1._____________(an,aeroplane,hear,Lucy,can)2. _____________________(not,he ,dance,can )3.__________________? (you,can ,see,what )4._________________(can ,see ,not ,we ,you)5._________________. (I ,can ,help ,you )6._____________________? (I,can ,do,what)7.___________________? (you ,can ,hear me)8.___________________? (you ,can ,dance)(二)人称代词所属格注意:主格作主语,其中she指带代国家,it可指代天气时间等。

小学情态动词入门详解与练习

小学情态动词入门详解与练习

小学情态动词入门详解与练习兴趣是最好的老师。

不要求成绩的让孩子看、听英语,对孩子来说绝对是一种享受。

小偏整理了小学情态动词入门详解与练习,欢迎参考借鉴。

小学情态动词入门详解与练习一、定义情态动词表示说话人对某一动作或状态的态度,表示“可能”,“可以”,“需要”,“必须”,“应当”等意思。

情态动词没有人称和数的变化,后面的动词要用原形。

二、情态动词的种类:情态动词词义否定形式词义can能够,会can’t不能,不会could能够,会couldn’t不能,不会may可以//must必须mustn’t不允许,不能shall将,要//should应该shouldn’t不应该need需要needn’t不必would将会,愿wouldn’t不会,不愿三、情态动词的常见用法:1.can和could的用法(1)can/could 表示“能力;许可;可能性”等。

could 为 can 的过去式。

如:Can I use your book?我可以用你的书吗?(2)can 用在疑问句中,表示征求意见、请求许可,答语仍用can; could 用在疑问句中,比can 更委婉、客气,是一种礼貌的说法,并不表示过去时态,答语用can,而不能用could。

Eg: -Could you tell me the way to the park?你能告诉我去公园的路吗?-Sorry. I can't. I'm new here。

不好意思,我不知道。

我是新来的。

[注意]①can 和could 只能用于现在时和过去时两种时态。

②另外, can't 可表示否定推测。

2.may和might的用法may/might 意为“可以”,表示同意、许可或请求对方许可,也可表示祝愿。

might 是may 的过去式,有两种用法:一种表示过去式;一种表示虚拟语气,使语气更加委婉、客气,或表示可能性更小。

以may开头的一般疑问句,其否定回答用mustn't。

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情态动词【知识要点】:情态动词(Modal verbs)本身有一定的词义,表示语气的单词。

但是不能独立作谓语,只能和一起构成谓语。

情态动词用在行为动词前,表示说话人对这一动作或状态的看法或主观设想。

情态动词虽然数量不多,但用途广泛,主要有下列: can (could), may (might), must, need, ought to, dare (dared), shall (should), will (would) must not.情态动词无人称和数的变化,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"。

疑问形式是将情态动词提至主语前。

个别情态动词有现在式和过去式两种形式,过去式用来表达更加客气,委婉的语气,时态性不强,可用于过去,现在或将来。

情态动词属,故没有被动语态。

【典型例题】:【专题一】:can和could的用法【例1】Can you lift this heavy box?(体力)【解析】表示能力(体力、知识、技能)【练习】speak three languages.(知识)2. you skate?(技能)此时可用be able to代替。

Can只有一般现在时和一般过去式;而be able to则有更多的时态。

I’ll not be able to come this afternoon.当表示“经过努力才得以做成功某事”时应用be able to,不能用Can。

【例2】-----Can I go now?----- Yes, you can. / No, you can’t.【解析】表示请求和允许。

此时可与may互换。

在疑问句中还可用could,might代替,不是过去式,只是语气更委婉,不能用于肯定句和答语中。

【练习】---- I come to see you tomorrow?---- Yes, you .----No, you /I’m afraid not.【例3】Can this be true?【解析】表示推测(惊讶、怀疑、不相信的态度),用于疑问句、否定句和感叹句中。

【练习】This be done by him.How this be true?【专题二】may和might的用法:【例1】----Might/ May I smoke in this room?---- No, you mustn’t.【解析】表示请求和允许。

might比may语气更委婉,而不是过去式。

否定回答时可用can’t或mustn’t,表示“不可以,禁止”。

用May I...?征徇对方许可时比较正式和客气,而用Can I...?在口语中更常见。

【练习】---- I take this book out of the room?---- Yes, you . No, you【例2】May you succeed!【解析】用于祈使句,表示祝愿。

【例3】He may /might be very busy now.【解析】表示推测、可能性(不用于疑问句)。

might不是过去式,它所表示的可能性比may小。

【练习】mother not know the truth.very busy now.他现在可能很忙。

【专题三】must和have to的用法:【例 1】The man be our teacher。

那个人一定是我们的老师。

【例 2】I study hard because of my dream .为了我的梦想我必须努力学习。

【例 3】 come in time.你必须准时过来【解析】:must表示必须、必要。

表示主观对事物的推测时,意为想必、一定,只用于肯定句中;表推测时,情态动词与动词原形(常为be动词)连用。

而have to强调客观需要。

【练习】:play is boring,I go now.mother be waiting for you now.go home,because my father is ill.【例4】---Must we hand in our exercise books today?---Yes,you---No,you【解析】:在回答由must引出的问句时,如果是否定的,不能用mustn’t,而用needn’t,don’t have 是说话人的主观看法,而have to则强调客观需要。

【练习】:---Must he go to school now?---Yes,he---No,he .【专题四】should及其否定式用法【例 1】:I should help her because she is in trouble.【解析】:should 表示应该、劝告、建议和命令。

【练习】:1.You go to class right away.2. I open the window?【专题四】need的用法【例1】:You needn’t come so early.【解析】need 作情态动词用时, 常用于疑问句、否定句。

在肯定句中一般用must, have to, ought to, should代替【练习】---- Need I finish the work today?---- Yes, you / No, you【专题五】should的用法【例1】I should help her because she is in trouble.【解析】should表示应该【练习】You take care of the baby.【例2】You should go to class right away.【解析】表示劝告、建议和命令。

在疑问句中常用should。

【练习】 I open the window?【专题六】will和would的用法【例1】 I will do anything for you.【解析】表示询问,请求,将要。

【练习】1. you pass me the book?go to the library.【例2】would you tell me the way to the school?【解析】表示过去的意愿或委婉提问自我检测(一)用适当的情态动词填空。

1. Must I borrow the book with my ID card? No,you2. I use your car? Yes, you3. I go home now? No, you stay here and wait for the teacher. mother is stay at home and look after her.send an email to my friend.6. You take more exercise.7. you tell me how to get to the Park?8. We help each other.9. you like to go fishing with me?10. we play foot ball this afternoon?(二)按要求改写句子。

can run fast.(否定句)I fast.must return the book now.(一般疑问句)I return the book now?No,you .3.He can play basketball well.(一般疑问句)He basketball well?must take the books out of the room.(否定句)They the books out of the room.will get up early.(否定句)He get up early.(三)选择题。

1. I told Sally how to get here, but perhaps I _______ for her.A. had to write it outB. must have written it outC. should have written it ouD. ought to write it out2. —There were already five people in the car but they managed to take me as well.—It _______ a comfortable journey.A. can’t beB. shouldn’t beC. mustn’t have be enD. couldn’t have been3. It’s nearly seven o’clock. Jack _______ be here at any moment.A. mustB. needC. shouldD. can4. Johnny, you _______ play with the knife, you _______ hurt yourself.A. won’t; can’tB. mustn’t; mayC. shouldn’t; mustD. can’t; shouldn’t5. The fire spread through the hotel very quickly but everyone _______ get out.A. had toB. wouldC. couldD. was able to6. —When can I come for the photos? I need them tomorrow afternoon.—They _______ be ready by 12:00.A. canB. shouldC. mightD. need7. —I stayed at a hotel while in New York.—Oh, did you? You _______ with Barbara.A. could have stayedB. could stayC. would stayD. must have stayed8. —Are you coming to Jeff’s party?—I’m not sure. I _______ go to the concert instead.A. mustB. wouldC. shouldD. might9. I was really anxious about you. You _______ home without a word.A. mustn’t leaveB. shouldn’t have leftC. couldn’t have leftD. needn’t leave10. —Is John coming by train?—He should, but he _______ not. He likes driving his car.A. mustB. canC. needD. may11. A left-luggage office is a place where bags _______ be left for a short time, especially at a railway station.A. shouldB. canC. mustD. will12. I wonder how he _______ that to the teacher.A. dare to sayB. dare sayingC. not dare sayD. dared say13. When he was there, he _______ go to that coffee shop at the corner after work every day.A. wouldB. shouldC. had betterD. might14. It has been announced that candidates _______ remain in their seats until all the papers have been collected.A. canB. willC. mayD. shall15. How _______ you say that you really understand the whole story if you have covered only a part of the article?A. canB. mustC. needD. may16. —I hear you’ve got a set of valuable Australian coin. _______ I havea look?—Yes, certainly.A.DoB. MayC. ShallD. Should●答案解析●(一)、’t/don’t have to can 3. May must to 5. will could 8. must/should(二)’t run needn’t 3. Can play ’t take ’t(三)1. C。

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