besupposedtobesupposedto应该做某事shouldoughttoto是动词不定式符号基本含义主语是“人”，意思是“应该……被期望……”表示劝告，建议，义务，责任等。1.Iamsupposedtostudyhard.3.Everyoneissupposedtofollowthetrafficrules.2.Teachersaresupposedtotreatallthestudentsalike.主语人主语人主语人主语1.Thenewlawsaresupposedtopreventcrime.主语是“物”时，意为“本应该做某事，本该做某事”用来表示某事本应该发生实际却没有发生。3.Themeetingwassupposedtotakeplaceontime.2.Theplanewassupposedtoarriveanhourago.主语物主语物主语物主语benotsupposedto…“不准；不得；不应当”1.Lucywassupposedtobehappy.2.Theyaresupposedtohelphim.Lucywasnotsupposedtobehappy.Theyarenotsupposedtohelphim.否定句式1.Tokeepsafe,everyone_____towearaseatbeltinthecar.A.issupposedB.supposesC.supposedD.willsuppose2.IntheUnitedStates,you’renotsupposed____withyourhands.A.toeatB.eatingC.eatsD.ate中考链接
