高中英语主语从句

主语从句,Whowillwinthematchisstillunknown.Iwanttoknowwhathehastoldyou.Thefactisthatwehavelostthegame.Thenewsthatwewonthegameisexciting.,主语从句,宾语从句,表语从句,名词性从句的作用相当于名词，因此主语从句、表语从句、宾语从句和同位语从句分别作主句的主语、表语、宾语和同位语。,同位语从句,NounClauses(名词性从句),SubjectClause(主语从句),AppositiveClause（同位语从句）,ObjectClause（宾语从句）,PredicativeClause（表语从句）,Grammar,3.Tofindyourwaycanbeaproblem.,2.Smokingisbadforyou.,1.Youareastudent.,4.“Howdoyoudo?”isagreeting.,5.Whatshesaidisnotyetknown.,6.Thatweshallbelateiscertain.,7.Itiscertainthatweshallbelate.,Subject（主语）,AsentenceservedassubjectiscalledSubjectClause.,主语从句定义：主语从句是在复合句中充当主语的从句，通常放在主句谓语动词之前或由形式主语it代替，而本身放在句子末尾。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。,1）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。,Thatpeoplecutdowntoomanytreesdestroyedthebalanceofnature.Whetherlifewillcontinueontheearthformillionsofyearstocomewilldependonwhetherthisproblemcanbesolved.,.,Itwasnotclearwhetherthesolidshapewouldlastornot.,Subject,FormedSubject,Whetherthesolidshapewouldlastornotwasnotclear.,Real,引导主语从句在句首只能用whether,有it作形式主语的whether/if都可以.,Conclusion:,if,If,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.Thathewillrefusethispieceofadviceisimpossible._2.Thattheyshouldlikeeachotherisnatural._,*it为形式主语,Itisnaturalthattheyshouldlikeeachother.,Itisimpossiblethathewillrefusethispieceofadvice.,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.,Itisapitythat,Itisafactthat,2)Itis+adj.+从句Itscertainthat肯定Itispossiblethat.很可能Itisunlikelythat.不可能Itisobviousthat很明显Itisnecessaryimportantnatural.that*_(很可能)shewillcomebacktomorrow.*_(很明显)thismeasureiseffective.,+(should)+do,Itispossiblethat,Itisobviousthat,主语从句的虚拟语气,表“应该，惊讶、惋惜、遗憾”等意义Itisimportant/natural/necessary/impossible/strangethat.谓语形式为:should+V.原形,should可省略。eg.很奇怪，他竟没有来。Itisstrangethat_.我们做足够的运动很重要。重要的是我们应该做足够的运动Itisimportantthatweshoulddoenoughsports.,heshouldnotcome,表示“据建议、据要求、据命令”It+be+suggested/advised/ordered/requested/commanded/insisted/requiredthat谓语形式:should+V.原形,should可省略.据命令，所有乘客必须接受搜查_allthepassengers_.,Itwasorderedthat,(should)besearched,3)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.,Ithappenedthat,Itoccurredtomethat,4)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.,Itisreportedthat,Itissuggestedthat,5)“无关紧要（的是）”ItdoesntmatterItmakesnodifference翻译：一个人是否富有无关紧要_oneiswealthyornot.,Itdoesntmatterwhether,Itmakesnodifferencewhether,+主语从句,：Theyshouldlikeeachotherisnatural.：Thattheyshouldlikeeachotherisnatural.：Itisnaturalthattheyshouldlikeeachother.,：IfMaryreallyheardhimisreallydoubtful.：ItwasdoubtfulifMaryreallyheardhim.,TorFquestions,2.连接代词who，what，which,whatever,whichever,whoever,WhatmanyscientistsbelieveisthatthecontinuedpresenceofwaterWhowilltakepartinthemeetinghasnotbeendecided.Whoeverbreaksthelawwillbepunished.Whichstudentwillwinthefirstisuncertain.,3)连接副词when，where，how，why等。,Whytheysuddenlydisappearedstillremainsamystery.Whentheywillsetoffisnotdecided.Wheresheisfromisunknown.Howwewillpaintthehousehasnotbeendecided.,Completethesentencesusingwhat,whether,where,when，who,why,howorthat.,1.(_isneededforsuccess)isyourhardwork.,3.(wewillgotomorrow)hasntbeendecidedyet.,2.(theywillarrive)hasbeentoldtotheteacher.,What,When/How,Where/whether,4.(_canjoininthesportmeet)isdecidedbytheteacher.,5.(_itwillrainornot)isnotclear.,7.(_theearthisasolidball)isknowntousall.,Who,Whether,That,6.(_theearthisbecomingwarm)isagoodtopicforresearch.,Why,主语从句作主语时，谓语动词一般用单数形式。,Conclusion:,用that/whether/if/where/how/when/why/who/what/which/howmuch/etc.来连接主语从句.,Summary:,SubjectClause,3.引导主语从句在句首只能用whether,有it作形式主语的whether/if都可以.,2.That在主语从句中不能省略.,4.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.4种句型。5.主语从句作主语时，谓语动词一般用单数形式。,注意二：,Whoever(无论谁)=anyone/anybodywho（谁）,_leavestheroomlastoughttoturnoffthelights.A.AnyoneB.ThepersonC.WhoeverD.Who,注意三：,“疑问词+ever”引导主、宾、表、状语从句“Nomatter+疑问词”只引导状语从句无论谁违反法律将会受到处罚_willbepunished._,hewillbepunished,Whoeverbreakslaws,Nomatterwhobreakslaws,Whoeverbreakslaws,主语从句,状语从句,逗号是状语从句的标志,无论,2._theycansolvethequestionisstillunknown.A.IfB.WhichC.WhetherD.What,3._hesaidatthemeetingastonishedeverybody.A.WhyB.WhatC.ThatD.Who,4._isafactthatEnglishisacceptedasaninternationallanguage.A.ThereB.ThisC.ThatD.It,1._weneedmorepracticeisquiteobvious.A.WhatB.ThatC.WhenD./,Pickuponenumberandfinishthetaskinit,thenyoucangetsomepoints.,GameTime!,Correctornot?,*Whenthemeetingwillbeheldhaventbeenknownyet.,.beheldhasntbeenknownyet.,Payattention:主语从句的谓语用单数形式,10,thecatdo,made,Whatthecatdidmadethebabycry.,What,cry,Makeasentence,30,1.Thequestionis_thefilmisworthseeing.2._weshallattendthemeetinghasntbeendecidedyet.,用whetherif填空,whether,Whether,10,Translatethesentence,*_(他们很需要帮助)isquiteclear.,Thattheyarebadlyinneedofhelp,20,talkabout,theuseofcellphone,Whattheyaretalkingaboutistheuseofcellphone.,Makeasentence,30,*Ifwewillhaveameetinghasntbeendecidedyet.,Correctornot?,Whetherwewill.decidedyet.,Payattention:放在名词性从句句首，表示“是否”，只能用whether,不能用if,10,Translatethesentence,*Itisknowntous_(马克.吐温怎样成为一位伟大的作家).,howMarkTwainbecameagreatwriter,20,report,getthehighestpoints,matchItisreportedthatYaoMinggotthehighestpointsinthematch.,Makeasentence,30,