SectionAPeriod3GrammarFocus-4cReadthesentencespayingattentiontothecoloredparts.Whatareyousupposedtodowhenyoumeetsomeoneforthefirsttime?You’resupposedtoshakehands.You’renotsupposedtokiss.WhatarepeopleinKoreasupposedtodowhentheymeetforthefirsttime?They’resupposedtobow.Whenwereyousupposedtoarrive?Iwassupposedtoarriveat7:00.AmIsupposedtowearjeans?It’sveryimportanttobeontime.Itispoliteforboystoshakehandsandforgirlstokisseachotheronthesideoftheface.“besupposedto”的用法1.besupposedto“意为应该;被期望/期待;”理应,用来表示根据规定人们不得不做某事,或期待发生某事,时态、人称和句式的变化在be上体现,to为不定式符号,后接动词原形。2.besupposedtodo的否定式,要在be后加not,此时相当于benotallowedtodo,意为“”不被许可;不应当。3.如果表达“过去某时应该(不应该)”做时,用was(wasn’t)/were(weren’t)supposedtodo,相当于should(shouldn’t)have+动词过去分词。besupposedtodosth.“应该做某事”,某人被期望做某事,主语通常是人,相当于beexpectedtodosth.,常用来提出建议,其否定结构为benotsupposedtodosth.。You’resupposedtogetthereearly.你应该早点到那儿。You’renotsupposedtosmokehere.你们不应该在这里吸烟。拓展:★当besupposedto的主语为“物”时,意为“本应,本该”,表示某事本应该发生而没有发生。Thetrainwassupposedtoarrivetenminutesago.火车应该在十分钟前到达。★当besupposedto的主语是人时,后面还可以接“have+过去分词”,意为“本应,应该”,表示本应该做某事而没做。YouaresupposedtohavearrivedinBeijingnow.你本应该现在已经到了北京了。besupposedtodosth为系表结构,强调客观上有责任/义务作某事。Youaresupposedtocleantheblackboard,foryouareondutytoday.should强调主观上应该做某事。Youshouldstudyhard,foryouareastudent.besupposedtodosth.&should的区别Whatareyousupposedtodowhenyouseeanoldmanfalldown?We’resupposedto…Whatareyousupposedtodowhenyougoacrosstheroad?We’resupposedto…Whatareyousupposedtodowhenyouseeathiefstealingsomeone’swallet?We’resupposedto…Whatareyousupposedtodowhenyoufindrubbisheverywhere?We’resupposedto…Whatareyousupposedtodowhensomeoneasksyouforhelp?We’resupposedto…1.Whenyougoabroad,it___________bringyourpassport.2.Afterclass,students_________cleanthechalkofftheblackboard.3.IfyouvisitthenortherncoastofNorwayduringthewinterseason,it____________packwarmclothes.BBB4aCompletethesentenceswiththephrasesinthebox.besupposedtobeexpectedtobeimportantto4.Iftherearepeopleinthemeetingroom,you__________knockbeforeentering.5.InmanyeasternEuropeancountries,you__________takeoffyourglovesbeforeshakinghands.BBEachcountryhasdifferentrulesaboutsocialsituations.Atraveler_____________(notexpect)_______(know)allofthese,butitishelpful_______(learn)asmanyofthesecustomsaspossible.Trying____________(understand)howpeoplethinkisoneoftheisnotexpectedtoknowtolearn4bFillintheblankswiththecorrectformsofthewordsinbrackets.tounderstandbestwaystobeacceptedandlikedinaforeigncountry.Learningwhatyou_____________(suppose)todoand_______________(notsuppose)todoinsocialsituationsmaybedifficult,butitisworththetroubleifyouwanttounderstandanotherculture.aresupposedarenotsupposed用所给词的适当形式填空1.Asastudent,IknowIam_________(suppose)tostudyhard.2.Heis__________(notsuppose)tosmokehere.supposednotsupposed3.What______you_______(suppose)todowhenyoumeetsomeoneforthefirsttimeinAmerica?4.Iwas_________(suppose)toarriveatthepartyat6:30p.m.,butIarrivedat7:30p.m..aresupposedsupposed①You________askfortheteacher'spermissionifyouwanttoleavetheclas...