主语从句超全讲解加练习课件

GrammarGrammar主语从句GrammarGrammar主语从句1主语从句：做主语用的名词性从句，因其在复合句中做主语，又称主语从句，引导主语从句的有连词that，whether，连接代词who，what，which，连接副词when，where，how，why等。

主语从句：2RecallingSubjectClauseDefinition（定义）

________________________叫做主语从句。

Structure_______+_________在复合句充当主语的句子连接词简单句Whether,thatWho,what,when,where...在从句中______成分在从句中_____成分不充当充当（陈述语序）单数Whether,that从属连词Who,what,连接代词when,where...连接副词RecallingSubjectClauseDef33.Whatshesaidisnotyetknown.4.Whoevermakesmistakesmustcorrectthem.5.Howhedidthiswasstillapuzzle.6.Whenyouwillcomebackdoesn’tmatterDiscoverySubjectClause连接代词：在从句中充当主语、宾语、表语、定语。连接副词：在从句中充当状语。连接代词连接副词如：what\whatever\who\whoever\which\whose.如：how\why\where\when\whenever\wherever.

3.Whatshesaidisnotyetkno4SubjectClause1.Thatweshallbelateiscertain.2.Whethertheywillsellthehouseisnotyetdecided.3.Whatshesaidisnotyetknown.4.Whoevermakesmistakesmustcorrectthem.5.Howhedidthiswasstillapuzzle.6.Whenyouwillcomebackdoesn’tmatterThatWhetherWhatWhoeverHowWhen在从句中不充当成分在从句中充当成分Observing主语宾语状语状语SubjectClause1.Thatweshall51）从属连词：that，whether等.that引导主语从句只起引导作用，本身无实际意义，在主语从句中不充当任何成分，但不能省略。

Thathewillwiniscertain.他肯定会赢。Whether

he’llcomehereisn’tclear.他是否会来这里还不清楚。

1）从属连词：that，whether等.Thathe6SubjectClause1.Thatweshallbelateiscertain.2.Whethertheywillsellthehouseisnotyetdecided.ThatWhetherDiscovery相同点：that，whether为从属连词，在从句中不充当任何成分,不可省不同点：that:无词义whether:是否…SubjectClause1.Thatweshall7

注意:由that引导的主语从句有时为了使句子结构平衡,避免“头重脚轻”,常用it作形式主语,而把从句放在后面。例如:

1.That

hewillrefusethispieceofadviceisimpossible.______________________________________________________________________________2.Thattheyshouldlikeeachotherisnatural._____________________________________*it为形式主语Itisnaturalthattheyshouldlikeeachother.Itisimpossiblethathewillrefusethispieceofadvice.注意:由that引导的主语从句有时为了使句子结构平8这样就构成了下面一些常用句型:

1)Itis+n.+从句Itisapity/shamethat...遗憾的是……Itisasurprisethat…令人惊奇的是…Itisafactthat……是事实Itiscommonknowledgethat……是常识*_______________(很遗憾)welostthematch.*______________(这是事实)hecheatedintheexam.ItisapitythatItisafactthat这样就构成了下面一些常用句型:Itisapityt92)Itis+adj.+从句It’scertainthat…肯定…Itispossiblethat...很可能……Itisunlikelythat...不可能……Itisobviousthat…很明显…Itisnecessary\important\natural\...that…*_________________(很可能)shewillcomebacktomorrow.*_________________(很明显)thismeasureiseffective.+(should)+do…ItispossiblethatItisobviousthat2)Itis+adj.+从句+(should)103)It+不及物动词+从句Ithappenedthat...碰巧……

Itoccurredtomethat…我突然想起…*________________(刚好)Icameintotheofficeatthattime.*____________________(我突然想起)Iforgettosenttheletter.IthappenedthatItoccurredtomethat3)It+不及物动词+从句Ithappenedth114)It+be+过去分词+从句Itissaidthat...据说……

Itisknowntoallthat...众所周知……

Itisreportedthat...据报道……

Itisbelievedthat...据信……;人们相信……

Itissuggestedthat+(should）do...建议……Itmustbeadmittedthat…必须承认……Itcannotbedeniedthat…不可否认……Itmustbepointedoutthat…需指出的是……*___________________(据报道)20peoplewerekilledintheaccident.*______________________(建议)weshouldeatmorevegetableanddomoreexercise.ItisreportedthatItissuggestedthat4)It+be+过去分词+从句Itisrepo122.连接代词who，what，which,whatever,whichever,whoever

(Who,whom,which,what可以和ever构成合成词，和what一样引导从句，ever起到强调作用。此类主语从句不能用形式主语it引导，它们在句子中担任成分，不能省略，语序为陈述语序)

What

manyscientistsbelieveisthattheearthisround…Whowilltakepartinthemeetinghasnotbeendecided.Whoeverbreaksthelawwillbepunished.Whichstudentwillwinisuncertain.Whateverwassaidheremustbekeptsecret.这里说的话都应当保密。

Whoevermakesmistakesmustcorrectthem.凡犯了错误的人都必须改正。2.连接代词who，what，which,whatev133)连接副词when，where，how，why等。Why

theysuddenlydisappearedstillremainsamystery.When

theywillleaveisnotdecided.Where

sheisfromisunknown.How

wewillpaintthehousehasnotbeendecided.3)连接副词when，where，how，why等。Wh14注意:1）主语从句在句首时，必须由连接词引导，不能省略这些连接词；但是如果用it做形式主语，而把主语从句放在句末时，从属连词that可以省略。误：Theyshouldlikeeachotherisnatural.正：Thattheyshouldlikeeachotherisnatural.正：Itisnatural(that)theyshouldlikeeachother.注意:1）主语从句在句首时，必须由连接词引导，不能省略这些连152)如果主语从句放在句首，不能用if引导，但是如果用it做形式主语，而把主语从句放在句末时，也可以用if引导.或把if改为whether误：IfMaryreallyheardhimisreallydoubtful.正：Itwasdoubtfulif/whetherMaryreallyheardhim.正:WhetherMaryreallyheardhimisreallydoubtful.2)如果主语从句放在句首，不能用if引导，但是如果用it做16Completethesentencesusingwhat,whether,where,

when，who,why,how

or

that.1.(_____isneededforsuccess)isyourhardwork.3.(_____wewillgotomorrow)hasn’t

beendecidedyet.2.(______theywillarrive)hasbeentoldtotheteacher.4.(______canjoininthesportmeet)isdecidedbytheteacher.5.(________itwillrainornot)isnotclear.WhatWhen/HowWhere/whetherWhoWhether主语从句作主语时，谓语动词一般用单数形式。Conclusion:Completethesentencesusingw17主语从句的规律：

找出下列句子中的错误，并总结规律例1.Whenwillhecomeisnotknown.规律一、主语从句一律用陈述语序，即主语在前，谓语在后。正：Whenhewillcomeisnotknown.主语从句的规律：

找出下列句子中的错误，并总结规律例1.W18主语从句的规律：

例2.Hewillnotcometothemeetingthiseveningistrue.正：Thathewillnotcometothemeetingthiseveningistrue.规律二、连词that在从句中无实际意义，但不能省略。主语从句的规律：

例2.Hewillnotcome19主语从句的规律：例3.Ifthemeetingwillbeputoffhasnotbeendecidedyet.正：Whetherthemeetingwillbeputoffhasnotbeendecidedyet.规律三、whether可以引导主语从句，放在句首，但if不能主语从句的规律：例3.Ifthemeetingwi20主语从句的规律：

例4.

Thatwhetherhewillhelpothersisafact.正：Thathewillhelpothersisafact.规律四、主语从句中的连词不能重叠使用。主语从句的规律：例4.Thatwhetherhew21主语从句的规律：例5.

Whenhewillcomeareapuzzle.正：Whenhewillcomeisapuzzle.规律五、含主语从句的复合句谓语动词多用单数第三人称形式。主语从句的规律：例5.Whenhewillcome22主语从句的规律：1.Whatheneedsisthatbook.2.Whatheneedsaresomebooks.规律六、what引导主语从句，复合句是主系表结构时，根据表语决定复合句动词的单复数形式。主语从句的规律：1.Whatheneedsisth23规律七、主语从句为了避免头重脚轻现

象，用it做形式主语，而

把从句放在后面。Thattheearthturnsaroundthesunisknowntoall.

Itisknowntoallthattheearthturnsaroundthesun.规律七、主语从句为了避免头重脚轻现

象，用24找出错误，并给出理由：1.Whereshallwespendtheholidayisn’tdecided.2.Youhavemadeamistakeisafact.

3.Ifthepolicemanwillcomeisnotcertain.4.Thatiscertainthatwecanwin.

weshallWhetherItThatyouhave找出错误，并给出理由：weshallWhetherItTh255.Itisorderedweshouldleaveatonce.6.Wherehecomesfromareamystery.7.Whatwhetherhelikesthejobisnotclear.8.Whoheisandwhereheisfromisimportant.9.Whathesawisthestarsinthesky.thatisxareare5.Itisorderedweshouldlea26Exercises:PartOne:

主语从句单选题1.

hashelpedtosavethedrowninggirlisworthpraising.A.WhoB.TheoneC.AnyoneD.WhoeverD2.Itwas

hesaid

disappointedme.A.what;thatB.that;thatC.what;whatD.that;whatA3.

we’llgocampingtomorrowdependsontheweather.A.IfB.WhetherC.ThatD.WhereB4.

hesaidatthemeetingsurprisedeverybodypresent.A.WhatB.ThatC.ThefactD.ThematterAExercises:PartOne:主语从句单选题1275.

wastoreturntoschool.A.ThatreallyinterestedhimB.WhatreallyinterestedhimC.WhichreallyinterestedhimD.ThatinteresthimreallyB6.

makesmistakesmustcorrectthem.A.WhatB.ThatC.WhoeverD.WhateverC7.

yourmenhavebeenonmylandwithoutpermission.A.ItseemsthatB.ThereseemstobeC.ThatseemsD.ItseemsforA8.Ithasalwayspuzzledme

theoldmantiedaredsilkribbonontheyoungtree.A.thatB.whyC.whereD.whatB5.wastoreturntoscho28___hemadeanimportantspeechatthemeetingwastrue.

A.ThatB.WhyC.WhatD.How2.___we’llgocampingtomorrowdependsontheweather.AIfBWhetherCThatDWhereChoosethebestchoice___hemadeanimportantspeec293.Itworriedherabit___herhairwasturninggray.whetherB.thatC.whatD.when4.WhatIsayandthink___noneofyourbusiness.A.isB.areC.hasDhave3.Itworriedherabit___he301._____youdon’tlikehimisnoneofmybusiness.2._____hesaidatthemeetingastonishedeverybodypresent3.________the2000OlympicGameswillbeheldinBeijingisnotknownyet.4.________we’llgocampingtomorrowdependsontheweather.5.________leavestheroomlastnightturnoffthelights.ThatWhatWhetherWhetherWhoever请用恰当的主语从句连词填空:What,it,that,whether,whoever1._____youdon’tlikehimi31Correctornot?*Whenthemeetingwillbeheldhaven’tbeenknownyet.…………….beheldhasn’tbeenknownyet.×Payattention:主语从句的谓语用单数形式

10Correctornot?*Whenthemeeti32

thecatdomade

Whatthecatdidmadethebabycry.WhatcryMakeasentence30thecatdomadeWh331.Thequestionis________thefilmisinteresting.2.________weshallattendthemeetinghasn'tbeendecidedyet.用whether\if填空whetherWhether101.Thequestionis________the34talkabouttheuseofcellphone

Whattheyaretalkingabout

istheuseofcellphone.Makeasentence30talkabouttheuseofWhatthe35*

Ifwewillhaveameetinghasn’tbeendecidedyet.×Correctornot?Whetherwewill………….decidedyet.Payattention:放在名词性从句句首，表示“是否”，只能用whether,不能用if10*Ifwewillhaveameetingha36

report,getthehighestpoints,match

ItisreportedthatYaoMinggotthehighestpointsinthematch.Makeasentence30report,getthehighestp37

×Correctornot?Payattention:此主语从句缺少成分-宾语，故用作成分的what来引导，而不用that。Whatshewantstoknowis…….*Thatshewantstoknowiswhenthepartywillbeheld.10×Correctornot?Payattention38

×Correctornot?Payattention:由that引导的主语从句放在句首，that不能省略。That