八年级英语情态动词课件.ppt

情态动词练习巩固复习导入类别eg：SomeofuscanspeakRussiannow,butwecouldn’tspeakit5yearsago.Can/couldIborrowthesebooks?Ithoughtthestorycouldnotbetrue.2、may/might用法：might比may更客气，语气恭敬，用于正式场合。(1)表示认可或征求对方许可，有“可以”之意，但用作此意时它的否定形式用maynot，但表示“不允许”、“禁止”、“阻止”等意思时用mustn’t代替：情态动词4.haveto用法：5.hadbetter的基本用法：固定短语hadbetter具有情态意义，也可以看作是情态动词，意为“最好”或“应该”。没有人称和数的变发，后常跟动词原形，是提出建议的一种方式。其简略’dbetter,否定式为hadbetternot.如：5.Shall和should的基本用法：表提出或征询建议。如：情态动词情态动词1.______（May/Can)Itakethenewspaperaway?------No,youmustn’t.You______(must/can)readitonlyhere.2.______(Can/Need)yousingthesong?Yes,I____(can’t/mustn’t).butIt____(is/was)twoyearsago.3.MustIreturnthebookatonce?No,you_______(mustn’t/needn’t).butyou____(must/can)returnitafterschool.Mymotherisout,soI____(must/haveto)lookaftermylittlesister.1.—Thatmustbeamistake.—No,it______.I’vedoneitmanytimes.A.maynotbeB.needn’tbeC.can’tbeD.wouldn’tbe2.You____listentotheteachercarefullyinclass.A.havetoB.mustC.needD.may3.—Doyouhavetoleavenow?—Sorry,butIreally_____.A.can’tB.mustC.haveD.should4.It___beverydifficulttolearnEnglishwell,isn’tit?A.needB.hastoC.mustD.should1.John____beathomebecausehehasjustphonedmefromanearbytown.A.mustn’tB.isnotabletoC.can’tD.maynot2.Thereissomeoneknockingatthedoor,who____itbe?A.canB.mayC.mustD.need3.—______wegonow,Mike?—Sure.Let’sgo.A.WillB.ShallC.DoD.Are4.____Iaskyourname,please?A.WillB.ShallC.MayD.Must5.Ishall____helphimasmuchaspossible.A.mustB.havetoC.canD.may6.You____toschooltomorrowifyougotolookafterourmotherinthehospital.A.don’t’needcomeB.won’tneedcomeC.needn’ttocomeD.needn’tcome7.—NeedIgohomenow?—_______.A.Yes,youneedB.Yes,youmustC.No,youmustn’tD.No,youmaynot8.Sheworkedhardand____passhisexam.A.couldB.wasabletoC.canD.couldableto9.—CouldIborrowyourpen?—Yes,you_____.A.couldB.canC.wereableD.may10.______youlendmeyourbike?A.MayB.CanC.Mustn’tD.Do11.Yourmotherisill,andyou____homeearly.A.needtogoB.needtoC.needn’ttogoD.don’tneedgo12.Thereisnoschooltomorrow,soyou_____come.A.maynotB.needn’tC.mustn’tD.can’t14.—I’msorryIdidn’twinintherace.—Badluck!Well,yo