情态动词--知识点归纳(共5页).doc

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1、精选优质文档-倾情为你奉上情态动词例1. Tom has several houses in London, so he _ be very rich. A. may B. must C. can D. might例2. - Is jack on duty today? -It _ be him. Its his turn tomorrow. A. mustnt B. wont C. cant D. neednt1. Tom，you putallyourclothesonthefloorlikethis！ Awouldnt B. mustnt C. neednt D. maynot2. Joh

2、n, lookatthetime ._youplaythepianoatsuchalatehour?A. Must B. Can C, May D. Need3. He_havecompletedhiswork; otherwise, hewouldntbeenjoyinghimselfbytheseaside. A. Should B.must C. wouldnt D. cant4.Iwasonthehighwaywhenthiscarwentpastfollowedbyapolicecar.They_atleast150kilometersanhour.A.shouldhavebeend

3、oing B. musthavebeendoingC. couldhavedone D. wouldhavedone5.-ThewomenbiologiststayedinAfricastudyingwildanimalsfor13yearsbeforeshereturned.-Ohdear!She_alotofdifficulties! A maygothrough B.mightgothrough C oughttohavegonethrough D.musthavegonethrough6.-Tomisneverlateforwork. Whyisheabsenttoday?-Somet

4、hing_tohim. A. musthappen B. shouldhavehappened C. couldhavehappenedD. musthavehappened7.Thiscakeisverysweet.You _ alotofsugarinit.A. shouldput B. couldhaveput C. mighthaveput D. musthaveput8.Childrenunder12yearsofagesinthatcountry _beunderthesupervisionwheninapubliclibrary. A.must. B.may C. can D.

5、need9.-Whoisthegirlstandingoverthere?-Well,ifyou_know, hernameisMabel. A.may B. can C. must D. shall【知识点归纳】1) mustnt表”禁止一定不要”.2) must有“必须,偏偏,偏要”的意思.3) musthavedonesth. 过去一定做了某事。表示对过去的肯定推测4) musthavebeendoingsth过去一定在做某事，表示对过去事情的推测。5) must表示“猜测”意义时, 一般把握性很大, 意为“想必, 一定, 必定”。6) must表示“猜测”时只用于肯定句中, 如果是疑问

6、句或否定句应该用can或cant.7) 没有mustnt have done 的形式。1.TheWorldWideWebissometimesjokinglycalledtheWorldWideWaitbecauseit_beveryslow. A. should B. must C. will D. can2.-ShallIgiveyouarideasyoulivesofaraway?-Thankyou._.A. ItcouldntbebetterB. OfcourseyoucanC. Ifyoulike D. Itisuptoyou3.-DoyouknowwhereDavidis? Ico

7、uldnthavefindhimanywhere.-Well. He_ havegonefar，for _hiscoatisstillthere. A. shouldnt B.mustnt C. cant D. wouldnt4.I_havebeenmorethansixyearsoldwhentheaccidenthappened.A. shouldnt B. couldnt C. mustnt D. neednt5.IfI_plantodoanythingIwantedto,IdliketogotoTibetandtravelthroughasmuchofitaspossible.A. w

8、ould Bcould C. hadto D.oughtto6.-Ifthetraffichadntbeensoheavy,Icouldhavebeenbackby6oclock.-Whatapity! Tina_heretoseeyou. A. is BwasC. wouldbe D.hasbeen.7.Hepaidforaseat,when_haveenteredfree.A. could B.would C.must Dneed.8.-MumIvebeenlearningEnglishsince8oclock._Igooutandplayforawhile-No,Imafraidnot.

9、 Besides,itisrainingoutsidenow.A. Cant B. Wouldnt C. Maynot D. Wont9.MyEnglish-Chinesedictionaryhasdisappeared.Who _havetakenit?A. should B. must C. could D. would【知识点归纳】1) can表“能力” Man can not live without air.表“可能” He can (not) be hungry. Cold can be dangerous. Can / Could the news be true? 表“许可”

10、Can / Could I borrow your car?2) cant / couldnthavedone 不可能已经3) could可以用于虚拟语气。4) couldhavedone可以表示“推测”，也可以表示“该做没做”。5) Can / Cant I可以用来征询对方的建议.。1.There_beanydifficultyaboutpassingtheroadtestsinceyouhavepractisedalotinthedrivingschool. A. mustnt B. shant C. shouldnt D. neednt2.-IlltellMaryabouthernewj

11、obtomorrow.-You_ herlastweek. A. oughttotell B. wouldhavetold C .musttell D. shouldhavetold.3.Ioftenseelightsinthatemptyhouse.DoyouthinkI_ reportittothepolice?A.should B. may Cwill D. can4Youcantimaginethatawell-behavedgentlemanbesorudetoalady.Amight B. need C should D. would【知识点归纳】1)should可用于比较有把握的

12、的推测,已意思是”按理说,应该”2)shouldhavedonesth表示”过去本应该做某事却没有”做3)shouldnthavedonesth.表示过去本不该做事却做例:Youshouldhavestudiedhardlastterm, butyoudidnt4）should由“竟然”的意思 Its odd that she should marry such a mean man.1)-Lucydoesntmindlendingyouherdictionary.-She_.Ivealreadyborrowedone. A. cant Bmustnt Cneednt Dshouldnt2)-

13、Catherine,Ihavecleanedtheroomforyou.-Thanks. You_it.Icouldmanageitmyself.A. needntdo B. neednthavedoneC. mustntdo D. shouldnthavedone3)-IdontmindtellingyouwhatI know.-You_.Imnotaskingforit.A. musnt B. maynot C. cant D. neednt【知识点归纳】1)neednt表示没有必要.2)neednthavedonesth,表示过去没有必要3)didntneedtodosth.表示过去没有

14、必要做某实也没有做1)Helen_ goonthetripwithus,butsheisntquitesureyet.A. shall B. must C.may D. can.2)I_payTracyaviait,butImnotsurewhetherwillhavetimethisMonday.A .should B. might C. would D. could3)Sorry, I mlate. I_haveturnedoffthealarmclockandgonebacktosleepagain.A. might B. should C. can D. will【知识点归纳】1.ma

15、y表示可能性,意思是“也许”的意思2.may / mighthavedone 以及 may not / might not have done 用法与can / could have done 以及 can not / could not have done 用法类似。3. may 可以表“许可、推测”， might 可以表“许可、推测”，谈论过去时，might是may 的过去式I asked her if I might call her and see her.(本句中might 是 may 的过去式)但征求对方意见时，might 不表示过去，而是委婉语气1)”Theinterest_be

16、dividedintofiveparts ,accordingtotheagreementmadebybothsides,” declaredthejudge. A. may B. shouldC. mustD. shall2)-Excuseme,butIwantyourcomputertotypeareport.-You_havemycomputerifdonttakecareofit.A. shant B. mightnot C. neednt D. shouldnt【知识点归纳】1.shall表示意愿，一般用于二，三人称2.表示法律条文规定的内容 见书上 109页1）Whenhewast

17、here，hegotothecoffeeshopatthecornerafterworkeveryday.A. would B. should C. hadbetter D. might【知识点归纳】would意思是过去常常，表示过去的习惯。但不可以用于表状态的词。如：不可以说：Hewouldbeateacher.1）Thefirespeedthroughthehotelveryquicklybuteveryonegetout.A.hadto B. would C. wasableto D. could【知识点归纳】wasableto意思是做成了某事 Could I borrow your d

18、ictionary？ Yes, of course you_ . A. might B. will C. can D. should【知识点归纳】 may表示允许，否定形式为mustnt（不允许）；cancould, maymight都可用来表示“请求允许或许可”，过去式could和might常用于疑问句，表示礼貌，答语中常用原形can或者may，不可再用过去式could或might。 What do you think we can do for our aged parents? You _ do anything except to be with them and be yoursel

19、f. A. dont have to B. oughtnt to C. mustnt D. cant【知识点归纳】must与have to都可以表示“必须”的意思，但must表示主观看法，have to侧重于客观需要。【补充】：注意事项1.can表“怀疑”，译为“难道” Cant I go now?2.can 只有现在时和过去时，而be able to 时态较多，且shall/ must/ will/ have等助动词或情态动词后只能用be able to3.can 和be able to 不能连用4.can 只能表示一般能力，不表示特定场合下的能力；而be able to 表示通过努力和意志

20、能够做到或者已经做到的，感情色彩较浓，强调有没有能力胜任1. 表委婉的提问 Could I have a look at your new dress? 注意：回答语中表示允许某人做某事要用 Yes, you can .(不能用could) No, you cant.(不能用couldnt)Might I have a look at your new dress? 注意：回答语中表示允许某人做某事要用 Yes, you may .(不能用might) No, you may not.(不能用might not)5. may (might) as well “最好，不妨” You may/ m

21、ight as well have a try. may (might) well “很可能，极有可能” You may/ might well be right.6. will would will作情态动词时有以下用法: （1）当情态动词will表示意愿或决心时，也可用于条件状语从句。 If you will listen to me, Ill give you some advice on how to learn English. （2） 表示请求。 Will you give me a hand ? would的用法 （1）表示礼貌的请求。 Would you close the w

22、indow, please? （2）表示过去的倾向性动作或习惯。 John promised his doctor he _ not smoke, and he has smoked ever since. A. might B. should C. could D. would need dareneed既可用作情态动词，也可用作实义动词。 作情态动词neednt = dont have to 不必 What sort of house do you want to have? Something big? Well, it _ be big thats not important. A.

23、mustnt B. neednt C. cant D. wont need还可作实义动词（a） The elderly man needs / wants /requires looking after every day . = The elderly man needs / wants / requires to be looked after every day .（b） Does he need to take the medicine four times a day ?dare的用法（1） dare作为情态动词,主要用于疑问句,否定句和条件从句中,一般不用于肯定句. a. How

24、dare you say Im unfair ? b. He darent speak English before such a crowd, dare she ? c. If he dare break the rule, he will be punished.（2） dare作实义动词，有时态、人称和数的变化。所不同的是，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后可接带to或不带to的不定式。(当 情态动词，后接 do; 当 实义动词，后接 to do, 疑问、否定句 to 可以省略。) （a） I dare to swim across the river. （b） He doesnt dare （to） answer.情态动词时态专心-专注-专业