uni5课件

can，may，might，can，could，maynot，might，can，couldWhoishe?must，might，couldWhoseskirtisthis?ItmustbelongtoJane(=ItmustbeJane’s)JaneMikeBecausesheisagirl(Becauseboysdon’twearskirts)WuNingWhosenotebookisthis?ItmustbeWuNing’sIthashernameonitWhoseguitaristhis?XiaomingFredItmightbelongtoFredHelikesmusicCanthisT-shirtbeJohn’s?Itcan’tbeJohn’sIt’smuchtoosmallforhimJohn可能Whatcanthetwoboysbewatching?Youcangoandaskthem，can’t确信程度must>may>mightcan>could2Must(100%)，疑问句中表示“可能”用can，may，而不用may4表“不可能”常用cannot>couldnot，could(20%-80%)3Can表“可能”常用于疑问句和否定句，may，may，buttheymaynotansweryou可能不表示推测的情态动词小结1Can用在否定句或疑问句中时表示说话人的“推测”和“不确定”例如：1Wherecanhebe?2ItmaybetheheadmasterNo，can，itcan’tbehimHehasgonetoShanghaiCould也有怀疑和不确定的意思（在否定句中和疑问句中）例如：1Atthetime，might，mightnotWhoisshe?must，Could则不受影响，Unit5ItmustbelongtoCarlaByStormHu本单元内容LearntomakeinferenceSomeimportantphraseLearntomakeinference1能用来表示推测的情态动词Must,