语法--be-supposed-to-do

besupposedtodosuppose动词“设想；认为；猜想”1)suppose跟that从句或复合宾语e.g.我想你是对的。Isupposeyouareright。我猜想他大约五十岁。Isupposehimtobeaboutfifty。2）Isupposethat….否定：Idon’tsupposethatbesupposedtodo的用法besupposedtodo意为“应该、被期望、理应”做某事。用来表示根据规定或传统习惯人们不得不做的事。时态、人称和句式的变化用be来体现,to为不定式符号,后接动词原形。1.besupposedtodo的句式1）besupposedtodoe.g.你应该按时完成你的作业。Youaresupposedtofinishyourhomeworkontime。我们应该在六点钟到达那里。Wearesupposedtoarrivethereatsix。2）benotsupposedtodoe.g.你不准在这抽烟。Youarenotsupposedtosmokehere。你不应该在教室踢足球。Youarenotsupposedtoplayfootballintheclassroom。3）一般疑问句：besupposedtodo的疑问句式须将be的相应形式提到主语前。e.g.他应该在5点钟到吗?Ishesupposedtogetthereatfive?露西应该像那样说汉语吗?WasLucysupposedtospeakChineselikethat?4）特殊疑问句：疑问词+be+主语+supposed+todo？e.g.在课堂上你应该做什么？Whatareyousupposedtodoinclass？当你遇见某人时你应该做什么？Whatareyousupposedtodowhenyoumeetsomeone？2.besupposedtodo的用法1）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，。besupposedto...相当于shoulddo或oughttoe.g.你应该在课上举手。Youaresupposedtoputupyourhandinclass。=Youshouldputupyourhandinclass.2)当besupposedtodo的主语是“物”时，它表示“本应做…；本该做…”，用于表示“某事本应该发生而没有发生”。e.g.火车本应在半小时之前到达。Thetrainwassupposedtoarrivehalfanhourago.3)besupposedtodo”被认为…;被相信……”e.g.TheanswerMr.Hegavewassupposedtoberight.练习：1.Sheislateforclassagainandsheissupposedto____sorrytotheteacher.A.sayingB.saysC.saidD.Say2.Tokeepsafe,everyone___towearaseatbeltinthecar.A.issupposedB.supposesC.SupposedD.willsuppose3.---Mayweleavetheclassroomnow?----No,you____.You_____toleaveuntilthebellrings.A.Must;areallowedB.can’t;aren’tsupposedC.needn’t;aren’tsupposedD.couldn’t;arenotallowed4.Studentsare____tospeakloudlyinthereadingroom.A.toldB.supposedC.notsupposedDallowed5.UsuallypeopleinJapanandKorea____whentheymeetforthefirsttime.A.aresupposedtokissB.aresupposedtobowC.supposetokissD.supposetohow6.Peopleare______to______whentheymeetforthefirsttime.A.suppose;shakehandsB.supposed;shakehandsC.supposed;shakehandD.suppose;shakehand7.Idon’tsupposedanyonecanworkouttheproblem，________?A.doIB.don’tIC.cantheyD.can’tthey8.You_____supposedtotakethemoutoftheroom.A.didn’tB.aren’tC.don’tD.can’t9.Youaresupposedtohelpyourparentsdothehousework.You_______helpyourparentsdothehousework.10.Youshouldn’tstickyourchopsticksintoyourfood.You_____________________stickyourchopsticksintoyourfood.answers:DABCBBCBshouldarenotsupposedto