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1、英语语法情态动词考点分析1：基本含义情态动词基本含义Can/could能够、可以能够、可以May/might可能、可以可能、可以Will/would愿意愿意should/oughtto应该应该must必须必须need需要需要shall应该，建议应该，建议dare敢敢真题演练Sandydidntcometoschooltoday,Ithinkshe_beill.AshouldB.mustC.wouldD.shall扩展练习2（2004上海春季）上海春季）Youmightjustaswelltellthemanufacturerthatmalecustomers_notlikethedesigno
2、fthefurniture.A.mustB.shallC.mayD.need扩展练习1（2008上海）上海）Accordingtotheairtrafficrules,you_switchoffyourmobilephonebeforeboarding.A.mayB.canC.wouldD.shouldDoyouknowwhosedictionaryitis?It_Lindas.HernameisonitA.mustB.canC.shouldD.oughtto精讲：精讲：dare的用法的用法1、用作实义动词，此时其后的动词不定式、用作实义动词，此时其后的动词不定式可带可带to也可不带也可不带t
3、o，且，且dare有人称和数以及有人称和数以及时态的变化。时态的变化。Idaretojumpdownfromthetopofthewall.Shedoesntdare(to)meetherteacherseyes.2） 情态动词，后跟动词原形，主要用于情态动词，后跟动词原形，主要用于疑问句、否定句和条件句中。疑问句、否定句和条件句中。 Howdareshedothingslikethattome?Dareyoucatchthemouse?-Idarentdothat.Iwonderhowhe_thattotheteacher.A.DaretosayB.DareaskingC.Notdaresa
4、yD.DaredsayDare作为情态动词，有时态的变化。作为情态动词，有时态的变化。 考点引申1:Can的特殊含义（1）表推表推测ItcouldntbeTom.HehasgonetoLondon.（2）表惊异的表惊异的态度度Howcanyoutreatmelikethat?（3）表表“有有时”Itcanbeverychillinghereintheevening.真题演练（2003上海）上海）How_yousaythatyoureallyunderstandthewholestoryifyouhavecoveredonlypartofthearticle?A.canB.mustC.needD
5、.mayShall用法详解用法详解一般情况：一般情况：shall第一人称第一人称will第一、二、三人称第一、二、三人称特殊情况：特殊情况：Shall（第二、三人称）：意愿、决心，允（第二、三人称）：意愿、决心，允诺，命令诺，命令Nobodyshallbelateforthemeeting.Students_becarefulwhiledoingchemicalexperimentsinthelab.A.dareB.canC.shallD.mayIthasbeenannouncedthatcandidates_remainintheirseatsuntilallthepapershadbeen
6、collected.A.canB.willC.shallD.may考点引申2：mustVS.need辨析辨析动词类型动词类型核心含义核心含义后接后接Must情态情态必须必须doMustnt情态情态一定不能一定不能doNeed实义实义需要需要todoNeednt情态情态不必要不必要do真题演练（2004上海）上海）Childrenunder12yearsofageinthatcountry_beunderadultsupervisionwheninapubliclibrary.A.mustB.mayC.canD.needneedneedtobetobeWrapUpMust/should：必须执行
7、的规定Need：客观需求（不一定要执行）May/might：不确定性考点分析2：否定形式情态动词（否定形式）含义Cant不能，不允许，不可能不能，不允许，不可能Maynot不允许不允许Wouldnt不愿意不愿意Shouldnt不应该（客观性）不应该（客观性）Mustnt一定不能（主观性）一定不能（主观性）Neednt不必要（客观性）不必要（客观性）Shant不愿意（第一人称）不愿意（第一人称）Darenot不敢不敢真题演练（2005上海）上海）There_beanydifficultyaboutpassingtheroadtestsinceyouhavepracticedalotinthedr
8、ivingschool.A.mustntB.shantC.shouldntD.neednt客观现实客观现实扩展练习1（2007上海春季）上海春季）Thebosshasgiveneveryoneaspecialholiday,sowe_gotoworktomorrow.A.cantB.mustntC.needntD.shouldnt客观现实客观现实扩展练习2（2008上海春季）上海春季）WhenIwasyoung,IwastoldthatI_playwithmatches.A.wouldntB.needntC.mustntD.darentIt was believed that I darent
9、 play with matches.Youcantimaginethatawell-behavedgentleman_sorudetoalady.(上海上海 2001)A.mightB.needC.shouldD.wouldMayIdotherestoftheworktomorrow?Yes,ofcourse.You_finishittoday.A.mustB.cantC.mustntD.wouldntMustIreturnthemagazinetoyourightnow?No,you_.YoumaykeepituntilnextWednesday.A.needntB.cantC.would
10、ntD.mayWrapUpMustnt主主观要求要求Shouldnt/neednt客客观要求要求考点分析考点分析3：情态动词情态动词+havedoneshouldmustShouldhavedoneItwasaneasytestandheshouldhavepassed.本本应该做（做（发生）的事却没有生）的事却没有发生生ShouldnthavedoneHeshouldnthaveattendedthemeetingbecausehewasinBeijingyesterday.本来不本来不应该做（做（发生生）的事件却的事件却发生了生了Must/mustnthavedoneYoumusthave
11、workedhereforalongtime.对过去事件的去事件的肯定肯定/否定否定推推测真题演练（2002上海春季）上海春季）Oh,Imnotfeelingwellinthestomach.I_somuchfriedchickenjustnow.A.shouldnteatB.mustnthaveeatenC.shouldnthaveeatenD.mustnteat既成事实，既成事实，不需要推测不需要推测表示动作未发生表示动作未发生扩展练习(2007上海上海)Guesswhat!IhavegotAformytermpaper.Great!Youreadwidelyandputalotofwor
12、kintoit.A.mustB.shouldC.musthaveD.shouldhave已发生事件已发生事件对未知事件对未知事件的推测的推测2.MysistermethimattheGrandTheatreyesterdayafternoon，sohe_yourlecture.【上海上海2000】A.couldnthaveattendedB.neednthaveattendedC.mustnthaveattendedD.shouldnthaveattendedWrapUpShouldhavedone：应该做而未做做而未做Shouldnthavedone：不：不该做而做了做而做了Musthave
13、done：推：推测做了某事做了某事Mustnthavedone：推：推测未做某事未做某事1.()IdidnthearthephoneI_asleep.A.mustbeB.musthavebeenC.shouldbeD.shouldhavebeen2.()We_lastnight,butwewenttotheconcertinstead.A.musthavestudiedB.mightstudyC.shouldhavestudiedD.wouldstudy3.()John,you_playwiththeknife,you_hurtyourself.A.wont;cantB.mustnt;mayC
14、.shouldnt;mustD.cant;shouldnt4.()Itsnearlysevenoclock.Jack_behereatanymoment.A.mustB.needC.shouldD.can5.()She_forwhatshehasdone,butwhydoyoukeepsilentonit?A.oughttopraiseB.oughttohavepraisedC.oughttobepraisedD.oughttohavebeenpraised6.()Ifyourbossisnotright,you_him.A.mustntobeyB.donthavetoobeyC.wouldnthaveobeyD.canthaveobey情态动词小结1情情态动词的基本含的基本含义2Need的肯定与否定用法的肯定与否定用法3Must/shouldhavedone的辨析的辨析本课件由上海复旦托业教育提供网址：http:/补习班http:/www.fudan-
