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besupposedto的用法suppose如何用suppose的基本意思是“猜想;以为;假定”,但在具体的语言环境中意义不止于此,其用法如下:1.suppose+that从句,表示“猜测;假定”。如:Isupposethatyouareright.我想你是对的。YoucansupposethatAequalsB.你可以假定A等于B。2.suppose+名词/代词+tobe...,表示“认为……是……”。如:Manypeoplesupposehimtobeover50.许多人认为他已经50多岁了。3.suppose用于祈使句中,表示“让……”。如:Supposewegoforaswim.(=Let'sgoforaswim.)让我们去游泳吧。besupposedto的用法用法一: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: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。用法二: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: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。用法三:besupposedto后面接“have+过去分词”时,表示“本应该做某事而没做”。如: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。用法四:besupposedto...的否定结构为benotsupposedto...,它常用于口语中,意为“不被许可;不应当”。如: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。suppose的其他用法:1.suppose+that引导的宾语从句“假设,猜想,以为”。例如:Let'ssupposethatyouhadamilliondollars,howwouldyouspendit?假如你有一百万美元,你怎么花呢?Isupposethatshe'llbetheretoday.我想她今天能到那里。Ihadsupposedhehaddiedyearsago.我原以为他几年前就去世了。2.当suppose+that引导的宾从变为否定句时,否定应前移,有此种用法的词有think,believe,guess(猜想)等。例如:Isupposethatshewillcometoyourparty.→Idon'tsupposethatshewillcometoyourparty.我猜她不会来参加你的晚会。Isupposethathewillagreewithyou.→Isupposethathewillagreewithyou.3.在表示同意或不同意别人的观点时,常用“Isupposeso/Idon'tsupposeso”。---Willhebebackthisweekend?他周末会回来吗?---Yes,Isupposeso.我想他会回来。
本文标题:be-supposed-to-的用法
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