广东版开心英语六年级下册Unit11之二 PPT课件.ppt

广东开心英语六年级下册,Unit11WehavetogotoIndia!,WhathappenedtoJack?Helosthisgameyesterday.,Oh,no.Ihavetofindmybones.butIcant.,Dontworry.Icanhelpyou.,Oh,no.Iforgottotakeabag.,Dontworry.Icarriedabag.,Thatsallright.,Youhavetorememberthelesson.,Ohno!Wecantgetout!,Dontpush.youhavetopull!,动词的过去式,loselostfindfoundcarrycarriedforgetforgot,动词的过去式,looklookedworkworkedhelphelpedplayplayedwashwashed,规则变化加(e)d,costcostcutcuthithithurthurtletletmustmustputputsetsetshutshutreadread,不规则变化（同形）,bringbroughtbuyboughtthinkthoughtcatchcaughtteachtaughtbuildbuiltlendlentsendsent,情态动词must，haveto的用法,你去睡一觉。2.你邀请他。3.你照你父母的话办。4.你抽这么多的烟。,Youdbettergetsomesleep.,Youdbetternotinvitehim.,Youshoulddowhatyourparentstellyou.,Yououghtnttosmokesomuch.,最好,最好不,应该,不应该,必须,不许,不得不,不必要,Youmustgetsomesleep.,Youmustntinvitehim.,Youhavetodowhatyourparentstellyou.,Youhaventgottosmokesomuch.,Modelverbs(),must,haveto,havegotto,mustnot/mustnt,donthaveto,haventgotto/hasntgotto,Mustsb?,Do/Doessb.haveto?,Have/Hassb.to?,（必须、应当）,（必须、不得不）,must和haveto的区别,1.适用时态不同must只能用于一般现在时.但haveto用在过去时和将来时，即hadto和willhaveto.,2.must和haveto后面跟动词原形。,3.否定含义不同在否定句中,haveto表示不需要，must则表示不允许。Youdonthavetogothere.Youmustntgothere.,Exercises,Dontbelateagain.You_behereontime.A.mayB.canC.mustD.needntYou_doitevenifyoudontwantto.A.cantB.mustntC.needntD.haveto3.MustItakeabus?No,you_.Youcanwalkfromhere.A.mustntB.dontC.donthavetoD.hadbetternotto4.Itisrathercoldhere.Shallwelightafire?No,we_