情態(tài)動(dòng)詞的用法語法中學(xué)階段都學(xué)過哪些情態(tài)動(dòng)詞呢1can/could/beableto

能夠，可能2may/might

可能3must/haveto

必須，不得不4shall/should

應(yīng)該5will/would

預(yù)見將來；意愿6need/dare

需要7oughtto

應(yīng)該情態(tài)動(dòng)詞1.概念：①本身帶有意思②不獨(dú)立作謂語2.考點(diǎn)：①情態(tài)動(dòng)詞無人稱和數(shù)的變化②情態(tài)動(dòng)詞+do謂語——輔助動(dòng)詞1can/could/beableto

能夠；可能1Someofuscanusecomputersnow,butwecouldn'tlastyear.（能力）2Itwillbesunnyinthedaytime,butitcanrainlateronthisevening（客觀可能性）3---CanIgonow?yes,youcan（請求和允許）4.Itcan'tbeourheadmaster.hehasgonetoBeijing.（不可能，表推測，主要用于否定和疑問）*beableto

能用于各種時(shí)態(tài)。

can/could

只能表示現(xiàn)在或過去的能力。*was/wereableto:“設(shè)法做成某事”

相當(dāng)于managedtodosth.succeededindoingsth.。1.can與beableto有何區(qū)別？1.Acomputer______thinkforitself;itmustbetoldwhattodo.A.can’tB.couldn’tC.maynotD.mightnotA

2.Theywill______runthismachineontheirowninthreemonths.A.canB.couldC.mayD.beabletoD2may/might

可能1MayIwatchTvaftersupper?Yesyoumay/No,youmustn't.（請求許可)2Itmaybetrue./shemaycometomorrow/Hemighthavesomefever（推測）3Mayyousucceed!Mayyouhavemanymoredaysashappyasthisone（祝愿）may/mightaswell

還是-----好wemayaswellstaywhereweare4.—CouldIborrowyourdictionary?—Yes,ofcourseyou_______.A.mightB.willC.canD.should5.—MightIwatchTVaftersupper?—Yes,you________.A.mayB.mustC.mightD.canCA3must與haveto的用法1Youmustcometoschoolontime.Youmustn'twasteanymoretime（必須,禁止）2MustIcomebackbeforeten?Yes,youmust.No,youneedn't./don'thaveto注意：否定回答不能用mustn’t,因?yàn)閙ustn’t表示禁止3Itmustbeourheadteacher.Youmustbehungryafteralongwalk.（推測)4Ireallymustgonow.Ihavetogonow,becausemymotherisinhospital.(不得不）6.You______returnthebooknow.Youcankeepittillnextweekifyoulike.A.can’tB.mustn’tC.needn’tD.maynot7.Johnny,you______playwiththeknife,you______hurtyourself.A.won’t;can’tB.mustn’t;mayC.shouldn’t;mustD.can’t;shouldn’tCB8.--Willyoustayforlunch?--Sorry,_____.Mybrotheriscomingtoseeme.A.Imustn’tB.Ican’tC.Ineedn’tD.Iwon’t9.--MayIpickaflowerinthegarden?--________.A.No,youneedn’tB.Not,please.C.No,youmustn’tD.No,youwon’tBC4shall1用于一，三人稱疑問句表示征求對方的意見和向?qū)Ψ秸埵維hallthedriverwait?Whatshallwedonext?2用于二三人稱陳述句表示命令警告，允諾，威脅以及法律條文規(guī)定Youshallgowithme/HeshallbepunishedYoushallhavethebookwhenIfinishitAllthechildrenshallgotoschoolattheageofseven.1表示勸告和建議Youshouldstudyhard.2表推測Theyshouldhavearrivedbytwoo'clock3表竟然Idon'tknowwhyyoushouldbesorudetoyourmother5should應(yīng)該10.Tom’sfatherpromised,“You___haveanewcomputerifyoupassthecomingexamination,”A.canB.shouldC.shallD.mayC

11.----WhencanIcomeforthephotos?Ineedthemtomorrowafternoon.----They_____bereadyby12:00.A.canB.shouldC.mightD.needB

5will與would的用法1表示意志和意愿Iwillneverdoitagain.Theysaidthattheywouldhelpus.2表請求，建議Willyoupleasetakeamessageforme?Wouldyoupleasepasshimthebook?3表功能Thismachinewon'twork.6need

需要與dare

敢的用法既可做實(shí)意動(dòng)詞又可做情態(tài)動(dòng)詞。做情態(tài)動(dòng)詞用于否定和疑問句而做實(shí)意動(dòng)詞可用于肯定，否定疑問Howdareyousaysuchathing?Hedarednotdoit.Hedidn’tdare(to)doit.Heneedn’tgetupsoearly.Hedoesn’tneedtogetupsoearly.13.She_____outaloneatnight.()A.darenottogoB.daresnotgoC.doesn’tdaretogoD.doesn’tdaresgoC7oughtto的用法1表應(yīng)該Yououghttotakecareofhim.Youarehisfather.Yououghttogethimtoreceivegoodeducation2表推測Heoughttobehomebynow.Hemust