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名词性从句知识点考点•考点一，名词性从句的语序问题。•考点二，it作为形式主语或形式宾语的用法。•考点三，考查that与what的区别。•考点四，考查whether与if以及与that的区别。•考点五，考查疑问词+ever引导的名词性从句以及与nomatter+疑问词的区别。•考点六，考查名词性从句的虚拟语气问题。在名词性从句中，除了关联词在从句句首外，其它部分应用陈述语序，特别是在以wh-引起的名词性从句中。克服这个问题的关键是要找准从句的主语。例如：Thephotographswillshowyou______A.whatdoesourvillagelooklikeB.WhatourvillagelookslikeC.howdoesourvillagelooklikeD.howourvillagelookslikeB但是除了以who开头的问句和表示“怎么了”的句型：whatis/wasthematterwithsb/sth?若为whatthematteris/was?在宾语从句中表示“东西是什么?”在句词型从句中为了使句子保持平衡,常用先行词it来代替主语从句或宾语从句,而把主语从句或宾语从句放到后面,尤其是连词that引导的主语从句常用于此句式中.不能用this和that来代替it.如:___isafactthatEnglishisbeingacceptedasaninternationallanguage.A.ThereB.ThisC.ThatD.ItIhate___whenpeopletalkwiththeirmouthsfull.A.itB.thatC.theseD.themDA在名词性从句中that与what的区别:that连词在从句中不作成分,不含有疑问意义,只起语法连接作用;而what连词在从句中作成分,且含有疑问意义.(指物,事,东西,作主语,宾语,表语,同位语等).如:___wecan’tgetseemsbetterthan___wehave.A.What;whatB.What;thatC.That;thatD.That;whatThisis___wasanoldtemple.A.whereB.theplaceC.whatD.thatAC在名词性从句中whether和if的区别是:在引导宾语从句时两者一般可以通用,但在引导主语从句表语从句,同位语从句,介词后面的宾语从句以及后面直接跟ornot时只能用whether,不用if.whether和if引导名词性从句与that引导名词性从句区别:whether,if引导的从句是由一般疑问句转化而来的,含有疑问意义;而that引导的从句是由陈述句转化而来的,不含有疑问意义.Whatthedoctorsreallydoubtis___mymotherwillrecoverfromthediease.A.whenB.howC.whetherD.whyItworriedherabit___herhairwasturninggrey.A.whileB.thatC.ifD.forCB疑问词+ever与nomatter+疑问词的区别是:前者既可以引导名词性从句,也可引导让步状语从句,而后者只能引导让步状语从句.在引导从句时,疑问词+ever比单独用疑问词引导从句语气要强.____leavestheroomlastoughttoturnoffthelights.A.AnyoneB.ThepersonC.WhoeverD.WhoSarahhopestobecomeafriendof____sharesherinterests.A.anyoneB.whomeverC.whoeverD.nomatterwhoCC在名词性从句中,主语,表语,宾语,同位语四种从句都可到虚拟语气.主语从句中在“It+be+necessary等形容词+从句”和“It+be+apity等名词+从句”以及It+be+suggested等(表示命令,要求,建议等动词的过去分词)+从句结构中,一般用虚拟语气.这时从句中的谓语动词由“should+动词原形”构成.在口语和非正式语体中,可以省去.宾语从句中某些表示“愿望、请求、建议、命令、决心”等意义的动词后也用“（should)+动词原形”来构成谓语，表示虚拟。常见词如下：advice,ask,decide,command,demand,insist,order,propose,request,require,recommend,suggest,urge等。表语从句或同位语从句在某些表示“建议、请求、命令”等意义的名词后同样需用“(should)+动词原形”来构成谓语。这类名词有：advice,desire,decision,idea,order,plan,proposal,rec-ommendation,request,suggestion等。如：Mysuggestionisthatwe(should)readEnglishnewspaperstoimproveourEnglish.Theteachersuggestedthatwe(should)havearest.Itisnecessarythathe(should)cometoseeus.1.Itwasorderedthatallthesoldiers____tothefront.A.shouldsendB.mustbesentC.shouldbesentD.mustgo2.Itisnotclear___hedidit.A.whoB.whichC.whomD.why3.Itissaid___hasbeentranslatedintoChinese.A.thatB.whichC.thatwhichD.thatthat4.Itisapitythatshe___intheexam.A.hadfailedB.failsC.failD.isfailing5.Everythingdependson___wehaveenoughexperience.A.ifB.whetherC.thatD.when6.Actually,girlscanbe___theywanttobejustlikeboys,whetheritisapilot,anastronaut,orageneralmanager.A.whereverB.howeverC.whateverD.whoever练习：CDDCBC7.Thisisthemainusethatthescientistsmake___ofnaturalresources.A.itB.whichC.useD.\8.Mr.Cooperwantedtobuythehouseandhetoldmethat___thehousecost,itwouldbe___it.A.however\worthB.howmuch\worthC.whatever;worthD.what\worthy9.Mr.Tomenjoyed___againbyworkinginthefactorybecauseheoftenhates____whilestayingaloneathomealldaylong.A.him\thatB.it\itC.himself\itD.himself\that10.___sometimeskeepsherawakeatnight___Tomisgettingmoreandmorequietathome.A.That\whichB.It\thatC.Whether\whatD.What\that11.---Doyouknow___Mr.Jack’saddressis?---HemayliveatNo.25orNo.52ofChanganStreet.I’mnotsureof____.A.where\whichB.what\whichC.where\whatD.what\whereDCCBB