英语人教新目标九年级全一册be supposed to 用法 课件

Howtouse“besupposedto”

Youaresupposedtolistentotheteachercarefully,andyouaresupposedtoraiseyourhandsbeforetalking.

besupposedto用法一：Everyoneissupposedtowearaseat-beltinthecar.每个人在汽车里都应该系安全带。Teachersaresupposedtotreatallthestudentsalike.老师应该对所有的学生一视同仁。besupposedto...其中to是动词不定式符号,不是介词,其后要跟动词原形。当besupposedto...的主语是“人”时，意为“应该……”；“被期望……”，它可以用来表示劝告、建议、义务、责任等，相当于情态动词should。如：用法二：Thenewlawsaresupposedtopreventcrime.这些新法令本应该起到防止犯罪的作用。Thetrainwassupposedtoarrivehalfanhourago.火车本应在半小时之前到达。当besupposedto...的主语是“物”时，它表示“本应；本该”，用于表示“某事本应该发生而没有发生”。如：用法三：Youaresupposedtohavehandedinyourhomeworkbynow.现在你应该已经把作业交上来了。Heissupposedtohavearrivedanhourago.他应该一小时前就到了。besupposedto后面接“have+动词过去分词(done)”时，表示“本应该做某事而没做”。如：用法四：Shewasnotsupposedtobeangryaboutthat.她本不该为那件事而生气的。Youarenotsupposedtosmokeonthebus.你不应该在公共汽车上吸烟。besupposedto...的否定结构为benotsupposedto...,意为“不被许可；不应当”。如：现学活用1.()Youaresupposedto

theenvironmentnearby.

A.protect B.protectingC.toprotect D.protected2.()—Whatshouldwedoforthedisabledchildren?—You’re

tosetupastudygrouptohelpthem.

A.taught

B.suggestedC.supported D.supposed3.

()Students

are

_______tospeakloudlyin

the

reading

room.

A.told

B.supposed

C.not

supposed

D.allowedADC现学活用4.上课时学生应该向老师问好。6.他应该半小时前就到那儿。Heissupposetohavegotthereanhourago.Studentsaresupposedtogreettheteacherwhenclassesbegin.5.你不应该在这里吸烟。Youarenotsupposedtosmokehere.ThemeetingissupposedtotakeplaceonTuesday.7.这次会议本应该星期二举行。Summary1.besupposedto...其后要跟动词原形。相当于情态动词should。2.sth.besupposedto...表示“某事本应该发生而没有发生”。3.besupposedto后面接“have+动词过去分词(done)”时，表示“本应该