高中主语从句讲解及其练习

主语从句习题主语从句一、主语从句的连词分三类（1）隶属连词引导的主语从句（thatwhetherif）that引导的主语从句:引导词that无含义/在句中不做成分/不能够够省。That引导主语从句平时用it作形式主语。比方：Thatyouwillwinthemedalseemsunlikely.Thatshesurvivedtheaccidentisamiracle.whether引导的主语从句:whether有含义(可否)/在句中不做成分/不能够够省。注意：引导主语从句，不能够用if不能够在开头，只能用whether。Whetherwewillholdapartyintheopenairtomorrowdependsontheweather.Whethersheiscomingornotdoesn’tmattertoomuch.（2）用连接代词引导的主语从句在由连接代词who,whose,whom,which,what,whoever,whomever,whichever,whatever引导的名词性从句中，其连接代词在句中起名词性作用，担当必然成分.比方：Whatyouneedismorepractice.Whateverwedoistoservethepeople.注：whatever/whoever的功用whatever,whoever在主语从句中不含疑问意义。它引导主语从句，并在从句中作主语、宾语、表语等。whatever=anythingthat;whoever=anyonewho。要注意和whatever,whoever引导的退步状语从句的差异。如：Whoeverbreaksthelawshouldbepunished.（主语从句）（＝Anyonewhobreaksthelawshouldbepunished.）Whoeverbreaksthelaw,heshouldbepunished.（退步状语从句）（＝Nomatterwhobreaksthelaw,heshouldbepunished.）3）用连接副词when,where,why,how引导的名词性从句(其连接副词有含义,在句中作状语。)比方:Whereweshouldleaveitisaproblem.Whentheywillcomehasn’tbeenmadepubic.1主语从句习题三、it作形式主的主从句有了考句子平衡，平时在主从句使用形式主it，而将真切的主从句移至句末。分四种情况：(1)于以that引的主从句，平时用形式主it取代主从句：<a>Itis+名+从句Itisafactthat⋯事是⋯⋯；Itisgoodnewsthat⋯⋯⋯是好信息；Itisaquestionthat⋯⋯⋯是个；Itiscommonknowledgethat⋯⋯⋯是常似的名有：apity；awonder；agoodthing；nowonder；surprise等。Itisamysterytomehowitallhappened.Itiscommonknowledgethatthewhaleisnotafish.ItisnosurprisethatBobshouldhavewonthegame.<b>Itis+形容+从句Itisnecessarythat⋯有必要⋯⋯；Itisclearthat⋯很清楚⋯⋯；Itislikelythat⋯很可能⋯⋯；Itisimportantthat⋯重要的是⋯⋯似的形容有：strange;natural;obvious;true;good;wonderful;possible;unlikely;quite;unusual;certain;evident;worth-while;surprising;interesting;astonishing,etc.Itisdoubtfulwhethershewillbeabletocome.Itisessentialthatheshouldbeherebytheweekend.Itseemsobviousthatwecannotgoonlikethis.Itisnecessarythatyou（should）masterthecomputer.需要注意的是主从句中，很多“（should）＋原形”，即要用虚气。<c>Itis+去分+从句Itissaidthat⋯据⋯⋯；Itisreportedthat⋯据道⋯⋯；Ithasbeenprovedthat⋯已明⋯⋯；Itmustbeprovedthat⋯必指出⋯⋯似的去分有：known;estimated;expected;believed;thought;hoped;noted;discussed;required;decided;suggested;demanded;madeclear;foundout,etc.比方：Itisusedtobethoughtthatanewstarmustbeduetoacollisionbetweentwostars.Ithasnotbeenmadeclearwhenthenewroadistobeopenedtotraffic.<d>Itseems不及物（happened/appears/doesn’tmatter/makesnodifference/occurred⋯）that⋯主从句不能提前2主语从句习题Itmakesnodifferencewhetherhewillattendthemeetingornot.ItdoesnotmatterifImissedmytrain.IthappenedthatIsawhimyesterday.对于以连接代词(副词)引导的主语从句，能够使用形式主语代主语从句，也可直接在句首使用主语从句：Whethertheywouldsupportuswasaproblem.他们可否会支持我们还是一个问题。Itwasaproblemwhethertheywouldsupportus.他们可否会支持我们还是一个问题。对关系代词型what引导的主语从句，平时直接将主语从句放在句首。如：Whatweneedismoney.我们需要的是钱。WhatIwanttoknowisthis.我想知道的就是这一点。有时也可将助用形式主语。如：Itisclearenoughwhathemeant.他是什么意思很清楚。(4)若是句子是疑问句，则必定用带形式主语it的结构：Isittruethatheisthegirl’sfather?他是那女孩的父亲，是真的吗？Howisitthatyouarelateagain?你怎么又迟到了？四、连词that的省略问题引导主语从句的连词that有时可省，有时不能够省，其原则是：若that引导的主语从句直接位于句首，则that不能够省略；若that引导的主语从句位于句末，而在句首使用了形式主语it，则that能够省略：Thatyoudidn’tgotothetalkwasapity.很遗憾你没去听报告。(that不能省)Itwasapity(that)youdidn’tgotothetalk.很遗憾你没去听报告。(that可省)五、六、七、八、九、十、十一、十二、主语从句练习题3主语从句习题1、Itneveroccurredtome___youcouldsucceedinpersuadinghimtochangehismind.(西高考)A．whichB．whatC．thatD．if2、It'sobvioustothestudents________theyshouldgetwellpreparedfortheirfuture.(天津卷)A．asB．thatC．whichD．whether3、________somepeopleregardasadrawbackisseenasaplugbymanyothers.(2010·北京)A．WhetherB．WhatC．ThatD．How4、Itisuncertain________sideeffectthemedicinewillbringabout，althoughabouttwothousandpatientshavetakenit.(2010·浙江)A．thatB．howC．whatD．whether主从句1.________makesmistakesmustcorrectthem.A.WhatB.ThatC.WhoeverD.WhateverItworriedherabit____herhairwasturninggrey.A.whileB.thatC.ifD.for3.Whenandwhyhecamehere________yet.A.isnotknownB.arenotknownC.hasnotknownD.havenotknown4.________isnoreasonfordismissingher.A.BecauseshewasafewminuteslateB.OwingtoafewminuteslateC.ThefactthatshewasafewminuteslateD.Beingafewminuteslate5.________Tomlikedtoeatwasdifferentfrom________.A.That⋯thatyouhadexpectedB.What⋯thatyouhadexpectedC.That⋯whatyouhadexpectedD.What⋯whatyouhadexpected6.________wegoswimmingeveryday________usalotofgood.A.If...doB.That...doC.If...doesD.That...does7.It________Bobdrivesbadly.A.thinksthatB.isthoughtwhatC.thoughtthatD.isthoughtthat8.It'suncertain________theexperimentisworthdoing.A.ifB.thatC.whetherD.How4主语从句习题9.________theboydidn'ttakemedicinemadehismotherangry.A.ThatB.WhatC.HowD.Which10.____wecan'tgetseemsbetterthan____wehave.A.What,whatB.What,thatC.That,thatD.That,what11.____youdon'tlikehimisnoneofmybusiness.A.WhatB.WhoC.ThatD.Whether12..____we'llgocampingtomorrowdependsontheweather.A.IfB.WhetherC.ThatD.Where13._________isgoingtodothejobwillbedecidedbythePartycommittee.A.ThatB.WhyC.HowD.Who14._______we'llfinishtranslatingthebookdependsonthetime.A.WhenB.WhyC.WhatD.That15.______hewon'tgothereiscleartoallofus.A.HowB.WhatC.WhyD.This16.______thehousewillbebuiltwillbediscussedattomorrow'smeeting.A.IfB.WhereC.ThatD.What17.._______youcomeornotisuptoyou.A.