情态动词基本用法1

TheUFOislanding.Listening(1:P37)Thealienischasingtheman.Themanisrunning.Whyisthemanrunning?231can/could;may/might;will/would;shall/should;must;need;(haveto;beableto;hadbetter;usedtodo,dare(to)do,…）特征：1.只有情态意义，情态动词+do；2.没有人称和数的变化；3.直接构成否定句和一般疑问句；4.只有现在式和过去式情态动词基本用法1.can&could&beabletoA.能力：Bobcanplaythepianoverywell.（Bobisabletoplaythepianoverywell)Icouldrideabikeattheageoften.(Iwasabletorideabikeattheageoften)B.许可：---Can/Could/MayIborrowyourbike?---Certainly./Sure/Yes,please./Yes,youcan.No,youcan’t./No,youmustn’t.2.may&might许可：---MayIsithere?---Yes,youmay/youcan.(Ofcourse)---No,youcan’t/mustn’t.3.must&havetoA.必须，应该（主观愿望）Wemuststudyhard.B.禁止：（否定式）Youmustn’tplayinthestreet.C.疑问句及回答Mustwefinishtheworkbefore5:00?Yes,youmust./No,youneedn’t/don’thaveto.haveto/hasto/hadto必须；不得不(客观要求）A.Hehastogetupearlyeverydaybecausehishomeisfarfromhisschool.B.---DoyouhavetolearnEnglish?---Yes,Ido./No,Idon’t.4.need(情态动词;行为动词；名词）A.情态动词(疑问句):Needshedothat?Yes,shemust./No,sheneedn’t.=Doessheneedtodothat?Yes,shedoes./No,shedoesn’t.B.情态动词(否定句):Heneedn’tgotoschool.=Hedoesn’tneedtogotoschool.C.needdoing(被动含义）Theroomneedscleaning.=Theroomneedstobecleaned.D.名词：inneedThereisnoneedforustodotheworknow.5.shall&shouldA.shall提建议（第一人称，征求意见）ShallwevisitthezooonSundaymorning?Let’sescapefromthedarkroom,shallwe?B.should必须，应该，表义务，责任Weshouldlearnfromeachother.Youshouldn’tbotherhimnow.6.will&wouldA.Wewillhaveapicnictomorrow.B.--Pleaselookafteryourself.–Iwill.--Don’tbelateagain.–Sorry,Iwon’t.C.--Will/Wouldyoupleasedo…?--Ok,Iwill./Sorry,Ican’t.D.---Will/Wouldyoupleasenotdo…?---Sorry,Iwon’tdothatagain.E.--Will/Would/Doyouminddoing…?---Ofcoursenot./Certainlynot./No,Idon’t.---I’msorry,but…/I’mafraidIdo.F.Wouldyouliketodo…?Sure,I’dliketo.7.hadbetter：最好（提建议）A.Shehadbetterdothatrightnow.B.Youhadbetternotdothatagain.8.dare:敢，敢于(情态动词&实义动词）A.Nobodydaredaskhimabouthispast.B.Iwonderhowhedares(to)saysuchthings.情态动词表猜测的用法：A.Itmustbetrue.(反意疑问句）B.Canitbetrue?Whocanitbe?Itcan’tbetrue.C.Itmay/might/couldbetrue.=Maybeitistrue.D.对进行动作的猜测：must/maybedoingE.情态动词在therebe句型中的运用：Theremight/could/may/must/usedtobesomeonelivingintheroom.情态动词的被动语态：情态动词+bedoneThemistakesmustbecorrectedintime.情态动词的系表结构：情态动词+be+adj./n….ThespellingmustbecorrectbecauseI’velookeditupinthedictionary.