高三英语情态动词2

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高三英语高考语法知识点归纳总结情态动词和虚拟语气情态动词

高三英语高考语法知识点归纳总结情态动词和虚拟语气情态动词

八、情态动词和虚拟语气情态动词I.情态动词基本用法情态动词用法否定式疑问式简答式can 能力(体力,智力,技能)允许或许可(口语中常用)可能性(表猜测,用于否定句或疑问句中)can not / cannot /can’tdoCan…do…?Yes,…can.No,…can’t.could couldn’t domay 可以(问句中表示请求)可能,或许(表推测)祝愿(用于倒装句中)may not doMay…do…?Yes,…may.No,…mustn’t/can’t.might might not do Might…do…?Yes,…might No,…might not.must 必须,应该(表主观要求)肯定,想必(肯定句中表推测)must not/mustn’t do Must…do…? to.Yes,…must.No,…needn’t/don’t havehave to 只好,不得不(客观的必须,有时态和人称的变化)don’t have to do Do…have to do…?Yes,…do.No,…don’t.ought to 应当(表示义务责任,口语中多用should)ought not to/oughtn’t todoOught…to do…?Yes,…ought.No,…oughtn’t.shall 用于一三人称征求对方意见用于二三人称表示许诺、命令、警告、威胁等shall not/shan’t do Shall…do…?Yes,…shall.No,…shan’t.should 应当,应该(表义务责任)本该(含有责备意味)should not/sh ouldn’t do Should…do…?will 意愿,决心请求,建议,用在问句中would比较委婉will not/won’t doWill/Would…do…?Yes,…will.No,…won’t.would would not/wouldn’t dodare 敢(常用于否定句和疑问句中)dare not/daren’t do Dare…do…?Yes,…dare. No,…daren’t.need 需要,必须(常用于否定句和疑问句中)need not/needn’t do Need…do…?Yes,…must. No,…needn’t.used to 过去常常(现在已不再)used not/usedn’t/usen’tto dodidn’t use to doUsed…to do…?Did…use to do…?Yes,…used.No,…use(d)n’t.Yes,…did.No,…didn’t. II.情态动词的重点知识表示“能力、许可”的can和may 表示能力的情态动词用can/couldA computer_____think for itself; it must be told what to do.A.can’tB.must n’tC.may notD.might not表示许可时用may/might ,can/could 都可以,但在问句中用could…?或might…?以使口气委婉客气,其回答一定要用can或may,以使回答口气明确(must表示一定,必须,mustn’t表示禁止,不许可)。

高考英语新情态动词知识点真题汇编及答案解析(2)

高考英语新情态动词知识点真题汇编及答案解析(2)

高考英语新情态动词知识点真题汇编及答案解析(2)一、选择题1.—You look so tired. You________ late last night.—Yes. I had to to do an important report and stayed up till I completed it.A.should sleep B.must sleepC.should have slept D.must have slept2.Tourists who enter the quiet area _____ obey the rule to reduce any potential effect on the environment.A.can B.may C.shall D.dare3.You ______ feel all the training a waste of time, but I'm a hundred percent sure later you'll be grateful you did it.A.may B.can C.should D.would 4.—Where is my dictionary?I remember I put it here yesterday.—You___it in the wrong place.A.must put B.should have putC.might put D.might have put5.She is shy and ________ the teacher’s question.A.dares not answer B.doesn’t dare to answerC.dare not to answer D.dares not to answer6.-Jenny took the 8:00 bus to Guangzhou this morning.-Really? He__the 9:00 train. It's much more comfortable and safer to travel by train. A.could have taken B.should takeC.must have taken D.can take7.No student ______go out of school after eleven o’clock at night without the teacher’s permission.A.will B.must C.may D.shall8.My computer ________ start this morning. There must have been something wrong with it. A.wouldn’t B.shouldn’t C.couldn’t D.mustn’t9.–Will you read me a story, Mummy?--OK. You ______have one if you go to bed as soon as possible.A.might B.must C.could D.shall10.—I heard they went skiing in the mountains last winter.—It true because there was little snow there.A.may be not B.won’t be C.couldn’t be D.mustn’t be 11.Skills like critical thinking and analysis ________ be found on the Internet, because they must be acquired in the context of facts.A.can’t B.needn’t C.mustn’t D.shouldn’t 12.Schools have been lengthening the school day to raise test marks, which ________ be costly if schools need air conditioning on hot days.A.might B.can C.dare D.need13.Although you ______ find bargains in London, it’s not generally a cheap place to shop. A.should B.need C.must D.can14.He did not regret saying what he did but felt that he _________ it differently.A.could express B.would expressC.could have expressed D.must have expressed15.You ______ have been out last night, for all the lights in your room were not on.A.need B.must C.may D.should16.I still remember my happy childhood when my mother ___________ take me to Disneyland at weekends.A.might B.mustC.would D.should17.She looks very happy. She_________ the exam.A.can have passed B.should have passed C.must have passed D.could have passed 18.You _________ me about it earlier, but you didn't.A.should have told B.would have toldC.must have told D.should tell19.Although passing the driving test ________ be difficult now, it’s worth the efforts. A.need B.shallC.can D.should20.—Can I inform my best friends of the result?—No, I want to keep it a secret . You ____tell anyone.A.won't B.don't have to C.mustn't D.don't need to 21.I____________ go to a summer camp during the summer vacation, but I am not sure. A.might B.can C.must D.need22.As you worked late last night, you __________ have come this morning.A.may not B.can’t C.mustn’t D.needn’t 23.—Sorry, Mum! I failed the job interview again.—Oh, it's too bad. You________ have made full preparations.A.must B.can C.would D.should24.You________have scolded him for his poor performance.After all,he had done his best. A.wouldn’t B.couldn’t C.mustn’t D.shouldn’t25.It ___________ last night, for the road was very muddy.A.would have rained B.must have rained C.should have rained D.must rain【参考答案】***试卷处理标记,请不要删除一、选择题1.D解析:D【详解】考查情态动词。

高考英语新情态动词知识点全集汇编及答案(2)

高考英语新情态动词知识点全集汇编及答案(2)

高考英语新情态动词知识点全集汇编及答案(2)一、选择题1.Mary is a bit shy and ____ a speech in public, which makes her lose the precious chance to do the voluntary job.A.dares not make B.doesn’t dare makeC.dare not to make D.dares not to make2.What a pity! Considering his ability and experience, he ___________ it better.A.need have done B.must have doneC.can have done D.might have done3.—Look at these tracks. It ________ be a wolf. I’m sure about it.—You are right! We have to be careful.A.may B.must C.can’t D.shouldn’t4.You ______ feel all the training a waste of time, but I'm a hundred percent sure later you'll be grateful you did it.A.may B.can C.should D.would5.Home is not just the place where you grow up. It ________ be a warm smile, a sincere hug, and a shoulder for you to cry on.A.must B.can C.will D.should6.You ________ give me a lift. I want to walk home for exercise.A.needn’t B.couldn’t C.can’t D.mustn’t 7.According to the regulations, anyone who has the intention to be a teacher _______ pass a series of demanding tests.A.can B.would C.might D.shall8.--Is Jack still in hospital?--Yes. He _________ the bad food.A.wouldn’t eat B.shouldn’t eatC.wouldn’t have eaten D.shouldn’t have eaten9.—I heard they went skiing in the mountains last winter.—It true because there was little snow there.A.may be not B.won’t be C.couldn’t be D.mustn’t be10.I ______my examination easily but I made too many stupid mistakes.A.should pass B.could have passedC.had passed D.must have passed11.Hurry up! Tom _______ for us at the gate.A.must wait B.must be waitingC.can be waiting D.must have waited12.Tourists who enter the quiet area _____ obey the rule to reduce any potential effect on the environment.A.can B.may C.shall D.dare13.Sir, you ____ be sitting in this waiting room. It is for women and children only. A.shouldn’t B.will C.won’t D.needn’t14.It was so noisy that we hear ourselves speak.A.couldn’t B.shouldn’tC.mustn’t D.needn’t15.He didn’t follow the doctor’s suggestions as required, but he _________.A.ought B.ought to C.ought to be D.ought to have 16.I still remember my happy childhood when my mother ___________ take me to Disneyland at weekends.A.might B.mustC.would D.should17.She looks very happy. She_________ the exam.A.can have passed B.should have passed C.must have passed D.could have passed 18.He ______ writing the paper now. He hadn’t written a single word when I left him ten minutes ago.A.shouldn’t be B.can’t have finishedC.can’t be D.mustn’t have finished19.The girl _________ out alone at night.A.dare not go B.dare not to go C.dares not go D.not dare go 20.It’s nearly 7 o’clock. Jack ____________ be here at any moment.A.shall B.had toC.ought to D.have to21.We lost our way in that small village, otherwise we ________more places of interest yesterday.A.visited B.had visitedC.would visit D.would have visited22.I _________ my driving test but I didn’t operate carefully.A.should pass B.may passC.might have passed D.might pass23.Word that you _________ enjoy a three-day holiday has come if you do complete the task on time.A.may B.should C.could D.shall 24.—Sorry, Mum! I failed the job interview again.—Oh, it's too bad. You________ have made full preparations.A.must B.can C.would D.should25.—Is Robert coming by coach?—He should, but he ___________ not. He likes driving his car.A.may B.could C.need D.must【参考答案】***试卷处理标记,请不要删除一、选择题1.B解析:B【解析】【详解】考查动词。

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

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。

高考英语二轮复习情态动词和虚拟语气考点讲解含解析

高考英语二轮复习情态动词和虚拟语气考点讲解含解析

情态动词和虚拟语气第一部分、情态动词一、can/could与be able to1.can/could用来表示“一般能力”;be able to有多种时态,且用来表示在特定条件下的“具体能力”.如:My grandma is over seventy,but she can still read without glasses.They will be able to tell you the news soon.He was able to flee Europe before the war broke out.2.表示允许可用can或could,与may/might意义接近.could可用于现在时,只是语气更加委婉、客气,回答时则一般要用can而不用could.—Could I have the television on?—Yes,you can./No,you can't.二、may与might1.表示允许,意为“可以,许可”,用法基本上同can与could.如:May I use your bicycle?2.表示可能性,意为“也许,可能”.如:According to the weather forecast, it may rain tomorrow.3.may可以放在句首,表示祝愿.如:May good luck be yours!三、must与have to1.must用来表示说话人的主观看法;have to表示客观的需要,强调外界压力,不得已而为之.如:He said that they must work hard.他说他们必须努力工作.(主观上要做这件事)My brother was ill, so I had to call the doctor in the middle of the night.我弟弟生病了,我只得半夜里把医生请来.(客观上需要做这件事)2.表示“不必”,须用don't have to或needn't.must的否定式表示“禁止,绝对不可”.如:You don't have to tell him about it.你不必告诉他那件事.You mustn't tell him about it.你绝不能告诉他那件事.—Must we do it now?我们必须现在做吗?—No, you needn't.不,你们不必.四、shall1.用于第一、第三人称的疑问句中,用来征求对方的意见或请求指示.如:What shall he do next?他下一步干什么呢?2.用于第二、第三人称的陈述句中,表示说话人的意愿,有“命令、警告、允诺、威胁、强制”等意思.如:He shall stay in bed.他必须躺在床上.You shall have it back next week.下周一定还你.He says he won't go, but I say he shall.他说他不去,但我说他必须去.五、will与would1.will用于各种人称,表示“意志、意愿”或“决心”等.如:If you will keep your watch half an hour slow, it is hardly surprising that you are late for your appointments.如果你想要让你的表慢半个小时,你约会时迟到就不足为怪了.2.will表示习惯性的动作,有“总是,惯于”的含义.如:An Englishman will usually show you the way in the street.英国人通常是会在街上给你指路的.3.would可表示过去反复发生的动作.如:On Sundays he would get up early and go fishing.星期天他总是早起去钓鱼.六、should与ought to1.should表示“建议”或“劝告”,有“应该”之意.如:You should learn from each other.2.ought to表示根据某种义务或必要“应当”做某事.如:Everyone ought to obey the traffic regulations.3.should和ought to也可用来表示推测,意为“想必会……”.如:—When can I come for the photos? I need them tomorrow afternoon.—They should be ready by 1200.七、情态动词表示推测1.can用于肯定句中表示客观的可能性,意为“有时会”;用于疑问句中可以表示推测,意为“可能”,有时表示一种惊讶的语气;用于否定句中也可以表示推测,can't意为“不可能”,语气很强烈.It is usually warm in my hometown in March, but it can be rather cold sometimes.我的家乡在三月份通常很暖和,但有时候也会相当冷.Mr. Bush is on time for everything. How can it be that he was late for the meeting?布什先生做什么事情都很准时,他怎么可能开会迟到呢?—Let's visit Tom together, Stephen.—There's no need to do so. He can't be at home, because I saw him board the flight to Beijing this morning.——Stephen,咱们一起拜访汤姆吧.——没必要这样做.他一定不在家,因为今天早晨我看见他登上了飞往北京的航班.2.may/might用于肯定句中可以用来表示不十分肯定的推测,意为“有可能”;用于否定句中也可以表示推测,may not意为“可能不”,表示一种不太确定的语气.The traffic is heavy these days. I might arrive a bit late, so could you save me a place?这些天交通很繁忙,我可能会来晚一点,请你帮我保留个位置好吗?3.must表示推测时只能用于肯定句中,意为“一定,必定”,表示十分肯定的语气(在疑问句中或否定句中要用can/could).—It's the office! So you must know eating is not allowed here.—Oh, sorry.——这是办公室!所以你一定知道这里不许吃东西.——噢,对不起.4.should用来表示推测时意为“应该”,即含有“按道理来说应当如此”的意思.There shouldn't be any difficulty about passing the road test since you have practiced a lotin the driving school.因为你在驾校训练了这么多,通过路考应该没什么困难.八、“情态动词+have done”结构1.should/ought to+have done,表示“过去本应该做而(实际)没有做的事情”,含有责备或遗憾的语气,意为“本应该……”.其否定形式为“should not/ought not to have+done”,表示某种行为本不该发生但实际上发生了.I shouldn't have watched that movie—it'll give me horrible dreams.我本不应该看那部电影——它会令我做噩梦.You ought to have come to the party yesterday, but why didn't you come?昨天你本来应该参加聚会的,可是你为什么不来?2.must+have done,用于肯定句,表示“过去一定做过某事”,表示一种很有把握的推测.注意,对过去发生的情况的否定推测常用“can't/couldn't+have done”表示.—Ye Shiwen won two gold medals in London Olympic Games.—She must have gone through tough training.——叶诗文在伦敦奥运会获得了两枚金牌.——她肯定受到严格的训练.—Do you know where David is? I couldn't find him anywhere.—Well. He can't have gone far—his coat's still here.——你知道大卫在哪里吗?我到处找不到他.——大卫的上衣还在这里,因此他肯定没走远.3.needn't+have done,表示“过去没有必要做某事,但实际上做了某事”.Mark needn't have hurried. After driving at top speed, he arrived half an hour early.马克本没必要那么匆忙.他以最快速度开车,结果早到了半个小时.4.may/might+have done,表示对过去情况的一种不太有把握的可能性的推测,表示“可能已做了某事……”,否定句表示“可能还没有……”.Sorry, I'm late. I might have turned off the alarm clock and gone back to sleep again.对不起,我迟到了.我可能把闹钟关掉后又睡着了.5.could+have done表示“过去本来可以做某事,但实际上没有做”;can/could+have done表示“过去可能做了某件事”.I could have saved the poor rabbit, but I didn't have the right drugs with me at that moment.我本来可以拯救那只可怜的兔子的,可是我当时没有合适的药品.第二部分、虚拟语气一、虚拟语气在虚拟条件句中的用法1.在具体运用中,条件从句中有时可省略if而采用倒装结构.如:Had it not been for your help, we wouldn't have achieved so much.2.介词without/but for、连词but、副词otherwise常用来表示某种假设条件.如:I wouldn't have made such rapid progress without your help.3.有时候从句动作和主句动作发生的时间不一致,这时谓语动词的形式要根据各自的时间来调整.如:If the weather had been more favourable, the crops would be growing still better.二、“should+动词原形”表示的虚拟语气这一类型常见词有“一坚持(insist)、二命令(order, command)、三建议(advise, suggest, propose)、四要求(request, require, demand, desire)”.以上词及其派生名词所接的名词性从句都使用“(should +)动词原形”的虚拟语气.①Jane's pale face suggested that she was ill, and her mother suggested that she(should) havea medical examination.简苍白的脸色表明她病了,她母亲建议她去检查身体.②She insisted that the man had stolen her car and that he(should) be sent to prison.她坚持说那个男人偷了她的车,并坚决要求他坐牢.三、特殊句式中的虚拟语气If only/It's (high) time (that)...wish/would rather/as if等固定句式要求用相应的虚拟语气表达形式.①I wish I could fly.真希望我能飞.②I would rather you came tomorrow.我宁愿你明天来.③If only I had taken your advice!要是听从了你的建议该多好啊!高频考点一、考查情态动词例1.(2018·北京卷)In today’s information age, the loss of data _________ cause serious problems for a company.A. needB. shouldC. canD. must【答案】C【解析】考查情态动词.句意:在今天的信息时代,数据的丢失有时会对一个公司造成严重的问题.数据丢失造成严重问题是客观上会发生的情况,即“客观可能性”,故该空应用情态动词can.C选项正确.其余情态动词均没有该用法.need需要;should应该,竟然;must必须,肯定.【变式探究】—Can’t you stay a little longer?—It’s getting late. I reall y _____go now, My daughter is home alone.A .mayB .canC . mustD .dare【答案】C【解析】句意:——你不能再多待会儿吗?——很晚了,我必须得走了.我女儿一个人在家.A. may可能,可以,也许;B. can能,会;C. must必须,必然要,必定会;D. dare敢,胆敢.结合句意,故选C.【变式探究】________ I have a word with you? It won’t take long.A. CanB. MustC. ShallD. Should【答案】A【解析】本题考察的是情态动词基本意义辨析.Can能够,可能;must必须,一定;非得;shall将要;should应该;句意:我可以和你谈谈吗?不会花很多时间的.根据句意可知本题使用can I…?表示询问对方是否允许.如:Can I use your dictionary?我可以使用你的字典吗?故A正确.高频考点二、考查情态动词的用法例2. (2018·天津卷) I can't find my purse. I___________ it in the supermarket yesterday, but I'm not sure.A. should leaveB. must have leftC. might leaveD. could have left【答案】D【解析】考查情态动词表推测.句意:我不能找到我的钱包了,昨天我有可能把它落到超市了,但我不确定.根据句中时间状语yesterday可知,是对过去事情的推测,故用情态动词+ have done,再根据后句but I’m not sure.可知,此推测为不能肯定的推测,故用情态动词could,表示“可能”.故选D.【变式探究】(2017•天津)My room is a mess, but I __________clean it before I go out tonight.I can do it in the morning.A. daren’tB. shouldn’tC. needn’tD. mustn’t【答案】C【解析】句意:我的房间很乱,但是在今晚我出去之前不需要打扫,我可以明天早晨再打扫.A.不敢;B.不应该;C不需要;D.不许.根据句意,故选C.【变式探究】Why didn't you tell me about your trouble last week?If you ________(tell)me,I could have helped.【答案】had told【解析】句意:上个星期你为什么不告诉我你的麻烦事?如果你告诉我了,我就能帮你.根据句意和相关信息判断,条件句表示与过去事实相反的假设,此时从句用过去完成时,主句谓语用“情态动词+have done”形式.【变式探究】I ______ have worried before I came to the new school, for my classmates here are very friendly to me.A. mightn’tB. mustn’tC. needn’tD. couldn’t【答案】C【解析】句意:我来新学校之前本没有必要担心,因为在这里我的同学对我非常友好.needn’t have done本没有必要做某事,表示实际上已经做了某事.根据句意可知选C.高频考点三、考查虚拟语气例3.(2019·天津卷)The workers were not better organized, otherwise they ________ the task in half the time.A.accomplished B.had accomplishedC.would accomplish D.would have accomplished【答案】D【解析】考查虚拟语气.句意:工人们没有被组织好,否则的话他们会用那一半的时间完成任务的.此处otherwise表达了一种含蓄虚拟;otherwise前的内容所述的是过去的事实,相当于if引导的条件状语从句“If the workers had been better organized”,因此后半部分应用“主语+would have done sth.”的结构.故选D.【举一反三】【2018·江苏】It’s strange that he _______have taken the books without the owner’s permission.A. wouldB. shouldC. couldD. might【答案】B【解析】考查虚拟语气.句意:真奇怪,他竟然没有主人的允许就拿走了这些书.在句型”It is important/necessary/strange/impossible/natural that...”中,其中由that引导的主语从句通常用“should+动词原形”这样的虚拟语气,其中的should可以省略.故选B.【变式探究】(2017·北京)If the new safety system _______ to use, the accident would never have happened.A. had been putB. were putC. should be putD. would be put【答案】A【解析】句意:如果这个新的安全系统被投入使用过的话,这个事故就不会发生了.根据主句确定是对过去情况的虚拟,所以从句谓语用had done形式,此外根据句意可知是被动,用被动语态,故A项是正确的.【变式探究】________(have)the governments and scientists not worked together,AIDS­related deaths would not have fallen since their highest in 2005.【答案】Had【解析】句意:如果政府和科学家不共同努力,与艾滋病相关的死亡就不会从2005年的最高点下降.这是一个省略了从属连词if的虚拟语气句,使用了倒装句式.根据主句的would not have fallen可知,这里是表示过去的虚拟语气,所以用had.【变式探究】Without his wartime experiences, Hemingway____ his famous novel A Farewell to Arms.A.didn’t writeB. hadn’t writtenC. wouldn’t w riteD. wouldn’t have written【答案】D【解析】句意:没有他战时的经验,海明威就不可能写出著名的小说永别了武器.根据without his wartime experience没有战时的经历,可知表示对于过去的否定猜测,故主句用would have done,因此选D 项.1.(2019·天津卷)The workers were not better organized, otherwise they ________ the task in half the time.A.accomplished B.had accomplishedC.would accomplish D.would have accomplished【答案】D【解析】考查虚拟语气.句意:工人们没有被组织好,否则的话他们会用那一半的时间完成任务的.此处otherwise表达了一种含蓄虚拟;otherwise前的内容所述的是过去的事实,相当于if引导的条件状语从句“If the workers had been better organized”,因此后半部分应用“主语+would have done sth.”的结构.故选D.2.(2019·江苏卷)What a pity! You missed the sightseeing, or we ________ a good time together.A.had B.will haveC.would have had D.had had【答案】C【解析】考查虚拟语气.句意:多么遗憾!你错过了这次游览.否则,我们就可以一起度过一段愉快的时光.根据关键词or可知,这里表示与过去的事实相反,谓语动词应用would/could/should/might+have done.1.【2018·江苏】 There is a good social life in the village, and I wish I _______ a second chance to become more involved.A. hadB. will haveC. would have hadD. have had【答案】A【解析】考查虚拟语气.句意:在这个村里有很好的社交生活,并且我希望我再有机会去更多的参与.本题考查wish引导的宾语从句,表示与现在事实相反的愿望,所以从句用一般过去时.故选A.2.【2018·江苏】It’s strange that he _______have taken the books without the owner’s permission.A. wouldB. shouldC. couldD. might【答案】B【解析】考查虚拟语气.句意:真奇怪,他竟然没有主人的允许就拿走了这些书.在句型”It isimport ant/necessary/strange/impossible/natural that...”中,其中由that引导的主语从句通常用“should+动词原形”这样的虚拟语气,其中的should可以省略.故选B.3.(2018·天津卷) I can't find my purse. I___________ it in the supermarket yesterday, but I'm not sure.A. should leaveB. must have leftC. might leaveD. could have left【答案】D【解析】考查情态动词表推测.句意:我不能找到我的钱包了,昨天我有可能把它落到超市了,但我不确定.根据句中时间状语yesterday可知,是对过去事情的推测,故用情态动词+ have done,再根据后句but I’m not sure.可知,此推测为不能肯定的推测,故用情态动词could,表示“可能”.故选D.4.(2018·北京卷)In today’s information age, the loss of data _________ cause serious problems for a company.A. needB. shouldC. canD. must【答案】C【解析】考查情态动词.句意:在今天的信息时代,数据的丢失有时会对一个公司造成严重的问题.数据丢失造成严重问题是客观上会发生的情况,即“客观可能性”,故该空应用情态动词can.C选项正确.其余情态动词均没有该用法.need需要;should应该,竟然;must必须,肯定.5.(2018·北京卷)They might have found a better hotel if they _________ a few more kilometers.A. droveB. would driveC. were to driveD. had driven【答案】D【解析】考查虚拟语气.句意:如果他们多开几公里的话,他们也许会找到一个更好的旅馆.由“they might have found a better hotel”可知,该句是表示对过去的虚拟.if ____ a few more kilometers是条件句部分,表示对过去的虚拟,条件句部分要用过去完成时态,故D选项正确.1.(2017·北京)Samuel, the tallest boy in our class, ______ easily reach the books on the top shelf.A. mustB. shouldC. canD. need【答案】C【解析】A. must 必须 B. should 应该 C. can 能 D. need 需要.句意:Samuel,我班最高的男生,能很轻松地够着书架顶上的书,此处需要一个表示能力的词,故用can,答案为C.2.(2017•天津)My room is a mess, but I __________clean it before I go out tonight. I can do it in the morning.A. daren’tB. shouldn’tC. needn’tD. mustn’t【答案】C【解析】句意:我的房间很乱,但是在今晚我出去之前不需要打扫,我可以明天早晨再打扫.A.不敢;B.不应该;C不需要;D.不许.根据句意,故选C.3.(2017•江苏) _______ not for the support of the teachers, the student could not overcome her difficulty.A. It wereB. Were itC. It wasD. Was it【答案】B【解析】考查虚拟语气和倒装.虚拟语气中,be动词统一用were;虚拟语气的省略形式主要是把if省略,同时把were/should/had提前,即Were /Should/ Had I...,故选B.句意:要不是老师们的支持,该生是无法克服她自己的困难的.4.(2017·江苏卷) ____________ not for the support of the teachers, the student could not overcome her difficulty.A. It wereB. Were itC. It wasD. Was it【答案】B【解析】考查虚拟语气的省略.虚拟语气中,be动词统一用were;虚拟语气的省略形式主要是把if省略,同时把were/should/had提前,即Were /Should/ Had I...,故选B.5.(2017•江苏) _______ not for the support of the teachers, the student could not overcomeher difficulty.A. It wereB. Were itC. It wasD. Was it【答案】B【解析】考查虚拟语气和倒装.虚拟语气中,be动词统一用were;虚拟语气的省略形式主要是把if省略,同时把were/should/had提前,即Were /Should/ Had I...,故选B.句意:要不是老师们的支持,该生是无法克服她自己的困难的.6.(2017·北京)If the new safety system _______ to use, the accident would never have happened.A. had been putB. were putC. should be putD. would be put【答案】A【解析】句意:如果这个新的安全系统被投入使用过的话,这个事故就不会发生了.根据主句确定是对过去情况的虚拟,所以从句谓语用had done形式,此外根据句意可知是被动,用被动语态,故A项是正确的.1.(2016·浙江,15)________(have)the governments and scientists not worked together,AIDS­related deaths would not have fallen since their highest in 2005.【答案】Had【解析】句意:如果政府和科学家不共同努力,与艾滋病相关的死亡就不会从2005年的最高点下降.这是一个省略了从属连词if的虚拟语气句,使用了倒装句式.根据主句的would not have fallen可知,这里是表示过去的虚拟语气,所以用had.2.(2016·浙江,17)George can't ________(go)too far.His coffee is still warm.【答案】have gone【解析】句意:乔治不可能走得太远了.他的咖啡仍然是温的.can't have done是对过去的否定推测.3.(2016·北京,34)Why didn't you tell me about your trouble last week?If you ________(tell)me,I could have helped.【答案】had told【解析】句意:上个星期你为什么不告诉我你的麻烦事?如果你告诉我了,我就能帮你.根据句意和相关信息判断,条件句表示与过去事实相反的假设,此时从句用过去完成时,主句谓语用“情态动词+have done”形式.。

高考英语情态动词用法详解

高考英语情态动词用法详解

高考英语情态动词用法详解,想要满分的看过来情态动词的区分情态动词可以广泛分为四大类。

第一类只能做情态动词,包括may、might、must等。

第二类既能做情态动词,又能做实义助词,包括need、dare、can等。

第三类既能做情态动词,又能做助动词,包括shall、should、will、would等。

第四类是指具有情态动词特征的短语,包括have to、used to、ought to等。

Can/could通常代表许可的意思,能够广泛用于肯定句、否定句和疑问句中,而且could的表达效果通常要更加委婉。

Cannot是指“禁止”,通常用于警告和告示。

May/might的意思与can/could相似,用法也没有明显区别,不过其与后者相比大多用于正式文体,通常含有尊敬之意,其中,might较may表达的效果更加委婉,但不是很常用。

Shall通常用于表示征求意见,常用于疑问句中。

而will/would同样是表示请求,其中would的表达效果更为客气委婉,且大多用于第二人称。

Must则是表示必须、必要。

情态动词的用法重点学习:will ( would), can (could), may (might)。

will 1.客观情形主语自己不能做决定,不要受客观情形支配。

如I will be 18 years old next month. 下个月我就要18岁了。

这里的will和将来时态连用表明是受时间客观规律支配的,不以主观意志来做主的。

因此可以和一个词组be going to do 区别开来。

be going to do 也是将要的意思,用法和will有很大区别。

当be going to do 的主语是人的时候,意思为“打算,计划”;只有当其主语是物的时候才可以和will等同表示马上要发生,但是依然不可以用于表示自然规律的情形。

It is going to rain soon.= It will rain soon. 马上就要下雨了。

高考英语语法词汇专项突破:02情态动词用法考点扫描+巩固练习+答案

高考英语语法词汇专项突破:02情态动词用法考点扫描+巩固练习+答案

高考英语语法词汇专项突破:02情态动词用法考点扫描+巩固练习+答案【要点速览】一、表力量的情态动词;二、表推想的情态动词;三、表必需的情态动词;四、表恳求允许的情态动词;五、表示对已经发生的事情的推想、责怪、懊悔、圆满等情态动词结构【高考真题呈现】【考例1】(2021年天津卷第一次)It used to be that you ___drive for miles here without seeing another person, but now there are houses and people everywhere.A.need B.should C.could D.must答案与解析:C。

考查情态动词推想功能。

A. need 需要;B. should 应当,理应如此;C. could 可能,表示对客观可能性的推想;D. must 肯定,必需。

依据前半句意思可知,表示的是对客观可能性的推想。

故选C。

句意:以前你可能在这里开了几英里,都没见过别人,但现在处处都是房子和人。

【考例2】(2021年天津卷其次次)---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 made答案与解析:A。

考查情态动词推想用法。

A.may have made 可能;B.should have made本应当做;C.couldnt have made不行能做;D.needn't have made本不必做。

依据句意可知,此处表示的是有可能,故选A。

高三英语情态动词总结及高考真题

高三英语情态动词总结及高考真题

? You mustn ’ t lend it to others. ? You mustn ’ t speak like that to your mother. ☆在回答有 “must”的 询问时,否定式常用 need not (needn ’t) / don
’t have表to示 “不必 ”,而不
He could be here soon. 他很快就来。
4 表示感情(惊异 /不耐烦) “究竟,到底 ”(主要用于否定句,疑问句和感叹句中。 )
How can you be so foolish?
What can it possibly be? 到底那是怎么一回事 ? They can ’t be working at this time of day.
? The Chinese language must have the large number of speakers.
3 . must 表示说话人不耐烦的态度, “干嘛偏要” ☆ must + have + done ,表示对过去事物的肯定推测。
“一定做过 ...”
He must have told my parents about it.
? How dare you treat us like that! Ⅲ 情态动词的语法特征
你怎么敢那样对待我们 !
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
经过努力设法做成了某事 ”,还可以表示结果
They worked hard, so they were able to do more for the company.

高中英语Unit2 情态动词Ⅱ学案含解析新人教版必修3

高中英语Unit2 情态动词Ⅱ学案含解析新人教版必修3

Unit 2 Healthy eatingSection ⅢGrammar——情态动词(Ⅱ)[思维导图][语法精讲]一、ought to 的用法(1)表示责任和义务,意为“应该”,与 should 同义,但语气比 should 重,侧重于“责任、义务、道德、法律”等方面。

To be a popular student, we ought to be strict with ourselves.为了成为一名受欢迎的学生,我们应该对自己要求严格。

[名师点津] ought to 的否定形式为 ought not to (oughtn't to);一般疑问句是将ought 提至句首,其否定答语通常用 doesn't/don't have to 或 needn't。

—Ought he to see the doctor?——他该去看医生吗?—Yes, he ought to./No, he doesn't have to.——是的,他该去。

/不,他不必去。

You ought not to make this kind of mistake again.你不应该再犯这种错误了。

(2)表示可能性,一般指较大的可能性,意为“按道理应该”。

If he started at six, he ought to be here now.要是他6点就出发的话,这会儿该到这里了。

二、need 的用法1.作情态动词(1)need 作情态动词时,常用于疑问句、否定句或条件句中,意为“需要”。

—Need I finish the work today?—Yes, you must./No, you needn't.——我需要今天干完这活吗?——是的,必须干完。

/不用,你不必干完。

(2)needn't 意为“不必”,表示客观上不必如此。

There's plenty of time. You needn't drive so fast.时间很充足,你不必开这么快。

高中英语语法之情态动词

高中英语语法之情态动词

高中英语语法之情态动词一、概念情态动词是表示能力,义务,必须,猜测等说话人的语气或情态的动词。

二、相关知识点精讲1.can1)表能力can 表能力时意味着凭体力或脑力或技术等可以无甚阻力地去做某事。

I can climb this pole.我能爬这根杆子。

He is only four , but he can read.他只有4岁,但已认得字了。

Fir e can’t destroy gold.火烧不毁金子。

因为 can 不能和其他助动词连用,所以表示将来式时用will be able to。

You will be able to skate after you have practiced it two or three times.你练习两三次后就会溜冰了。

2)表可能性多用于否定与疑问结构中,但也可用在肯定句中。

Can the news be true?这消息可能是真的吗?It can’t be true.它不可能是真的。

What can he possibly mean?他可能是什么意思?can 用在肯定句中表示理论上的可能性(一时的可能)。

Attending the ball can be very exciting.The road can be blocked.这条路可能会不通的。

may 在肯定句中表示现实的可能性。

The road may be blocked.这条路可能不通了。

3)表示允许(和 may 意思相近)常见于口语。

Can (May) I come in ?我能进来吗?Can I smoke here ?我可以在这里抽烟吗?2.could 的用法1)表过去的可能和许可,(多用于间接引语中)At that time we thought the story could not be true.那时我们认为所说的事不可能是真的。

Father said I could swim in the river.爸爸说我可以在河里游泳。

高考英语情态动词用法及解题技巧

高考英语情态动词用法及解题技巧

高考英语情态动词用法及解题技巧高考英语情态动词用法及解题技巧导语:情态动词是中学英语语法的重点,也是高考的热点。

只用作情态动词的有:can/could,may/might,must,ought to,be able to;既可作情态动词又可作实义动词的有:need,dare;既可作情态动词又为助动词的有:shall/should/w1ll/would。

以下是小编为大家精心整理的高考英语情态动词用法及解题技巧,欢迎大家阅读参考!1情态动词need的用法1. need作情态动词,一般用于疑问句和否定句中,表示“需要”、“必要”。

当其用于现在时和将来时时,在宾语从句中可当过去时用。

肯定回答用must(或have to, ought to, should) 来表达。

否定式为need not / needn't表示“不必,不需要”。

如:(1) You needn't show your passport at the entrance unless the guard asks you for it.(2) —Shall I tell Jack about it?—No, you needn't. I've told him already.2. need作实义动词,意为“需要”、“要求”。

如:(1) You don't need to leave so early.(2) He needs to try one more experiment.2情态动词dare的用法1. 情态动词,表示“敢”,后接动词原形,用于否定句、疑问句和条件状语从句中。

如:(1) We dare not refuse their request.(2) Dare you walk through the forest at night?2. 当实义动词用时,可用于各种句型中。

dare作实义动词用在否定句和疑问句中时,其后接不定式有时可省去“to”。

高中英语2025届高考语法复习情态动词与虚拟语气知识讲解

高中英语2025届高考语法复习情态动词与虚拟语气知识讲解

高考英语语法复习情态动词与虚拟语气知识讲解一、情态动词(1)表示能力时,can只用于一般现在时,could仅用于一般过去时;而be able to则有更多的时态,如将来时、完成时等。

I haven’t been able to read that report yet.He will be able to skate as well as you.(2)Was/were able to表示能力时,侧重经过努力而成功做到某事;而could仅表示具备能力,不说明是否实施了能力。

He studied hard and was able to pass the exam.(3)用在其他动词,如might,may,would,want,hope等之后表示能力只能用be able to。

He might be able to fix your car.(1)must还可以表示质问或感情色彩,意为“偏要,偏偏”。

Why must it snow on Saturday?(2)should还可以表示惊奇、愤怒、失望等特殊情感,尤其用在以why,who,how等开头的疑问句中或某些感叹句中。

why should you be so late today?(1)must作“必须”讲的一般疑问句,其肯定回答用must,否定回答用needn’t或don’t have to。

-Must I pay now?-Yes, you must./No, you needn’t.(2)need还可以作实义动词,有人称和数的变化,后跟带to的不定式作宾语。

She needed to go out for a walk.(1)两者在表示过去的习惯动作或行为时常可通用。

When we were children, we would/used to go skating every winter.(2)Used to与would都不能与表示具体频率、次数的词及特定的时间状语或具体的一段时间连用。

高考英语情态动词语法知识点与用法

高考英语情态动词语法知识点与用法

高考英语情态动词语法知识点与用法在英语学习中,情态动词经常出现,同时它也有很多讲究呢。

比如dare就很强硬,比较负面,而may就比较的和善,为了避免在谈话时把“讨论”变成“攻击”,我们一定要学会善用情态动词哦!小编整理了相关资料,希望能帮助到您。

高考英语情态动词语法知识点情态动词一、can和could1、can的用法(1)表示体力和脑力方面的能力。

(2)表示对现在的动作或状态进行主观的猜测,主要用在否定句和疑问句中。

(3)表示可能性,理论上的可能性,意为“有时候可能会”,可用于肯定句。

(4)表示允许,意思与may接近。

(5)表示说话人的推测、怀疑、惊异、猜测或不肯定等,主要用于否定句、疑问句或感叹句中。

(6)can的特殊句型cannot…too / enough表示“无论怎么。

也不过分”。

“越。

越好”。

cannot but+ do sth.表示“不得不,只好”。

2、could的用法(1)表示能力,指的是过去时间。

(2)表示允许,指的是过去时间。

(3)表示可能,可以指过去时间,也可以指现在时间,表示语气缓和。

(4)委婉客气地提出问题或陈述看法,指的是现在时间。

主要用于疑问句,回答时用can。

3、can与could的区别can表推测时只用于否定句和疑问句(could无此限制)。

couldn’t的可能性比can’t小。

4、can与be able to的区别(1)现在时:无区别,但后者不常用。

(2)完成时;can没有完成时,此时要用have(has,had)been able to。

(3)将来时:can没有将来时,要用will be able to。

(4)过去时:could表示一般能力,was/were able to 表示在具体场合通过努力成功做成某事的能力。

二、may 和might1、may的用法(1)表示询问或说明一件事可不可以做。

(2)表示一件事或许会发生或某种情况可能会存在,通常用在肯定句和否定句中。

高中英语必学语法之情态动词(二)

高中英语必学语法之情态动词(二)

情态动词(二)●知识点精讲透析●考点一shall1. shall用于第二、三人称陈述句中,表示说话人给对方的命令,警告,允诺或威胁。

1) You shall go with me. (命令)2) You shall have the book when I finish it. (允诺)3) He shall be punished. (威胁)2. shall用于第一、三人称疑问句中,表示说话人征求对方的意见和向对方请示。

4) Shall we begin our class? (征求意见)5) When shall Mike be able to leave hospital? (请示)3.用于条约,规定,规章等文件中,表示一种义务,多用于第三人称中。

6)Candidates shall remain in their seats until all the papers have been collected. 试卷完全收回后,应试人才能离开座位。

过手训练1. I am busy now, _______ my brother do it for you?A. willB. shallC. mustD. may2. One of our rules is that every student _____ wear school uniform while at school.A. mightB. couldC. shallD. will●考点二should1. 表义务,意为“应该”(某件事宜于做),用于各种人陈。

例:You should be polite to your teachers. 你对老师应该有礼貌。

2. 表推测,意为“想必;一定,照说应该,估计等”。

例:The film should be very good as it is starring first class actors. 这部电影是一流演员主演的,估计拍得很好。

英语情态动词(2)

英语情态动词(2)
2.We must have learned 2,000 words by the end of last term. 到上学期为止我们一定学了有两千个单词 。
3.He must have gone to Beijing. 他一定已经去北京了。
can/could+have done表示对过去的 行为的怀疑和不肯定,通常用在否定句 和疑问句中。
4. You ___C_____ such a long composition. The teacher only asked for 300 words. You have written
600.
A. mustn’t have written written
C. needn’t have written write
A. must be
B. must have been
C. should be
D. should have been
4. ---There were already five people in the car,
but they managed to take me as well.
----It __D__a comfortable journey
A. can’t be
B. shouldn’t be
C. mustn’t have been D. couldn’t have been
5. It’s nearly seven o’clock . Jack _C__be here at
any moment.
A. must B. need C. should D. could
shouldn’t he?
have to
have to 表示客观需要去做的事情,意为 “必须,不得不。”
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