高二英语主语从句复习

Grammar主语从句Grammar3.Tofindyourwaycanbeaproblem.

2.Smokingisbadforyou.1.Youareastudent.4.“Howdoyoudo?”isagreeting.5.Whatshesaidisnotyetknown.6.Thatweshallbelateiscertain.7.Itiscertainthatweshallbelate.Subject（主语）AsentenceservingassubjectiscalledSubjectClause.

主语从句

（NounClausesastheSubject）

定义：

用作主语的从句叫主语从句，它是名词性从句之一。引导主语从句的连接词有：连词that,whether；连接代词who,what和which；连接副词when,where,how和why。

Whowillgo

isimportantforme.Whichisthebest

isnotclear.Whydinosaursdiedout

isunknown.Wherewewillgettogether

hasnotbeendecided.Howshecankeephealthy

isasecret.Whetherhewillcome

isnotveryimportant.一主语从句的连接词1.that只起引导作用，本身无实际意义，不充当任何成分，但不能省略。Thatshelefthimmadehimheart-broken.Thatheisstillaliveisagoodnewstous.2.置于句首只能用whether“是否”，不充当从句的任何成分。他是否会参加这个话剧表演是显而易见的______________________________isclear.______________________________(他能否买到飞机票)doesn’tmattermuch.WhetherhecanbuytheplaneticketsWhetherhe’lltakepartintheplay1.Ifshewillcomeisnotimportant.

Whethershewillcomeisnotimportant.√×结论1：在主语从句中只能用whether,不能用if3wh-疑问词包含意思，并在从句中充当成分。_____shewillbebackisstillaquestion._____youtoldmejustnowwasreallyasurprise._____wewillholdthebasketballgametomorrowisnotimportant._____classwillwinthefootballgameisnotclear._____willmeethimisnotdecided.WhenWhatWhereWhich

Who________breaksthelawshouldbepunished.________hashelpedtosavethedrowninggirlisworthpraising.________tellsliesiswrong．WhoeverWhoeverWhoever填空练习：1)_________themeetingwillbeheldnextweekhasn’tbeendecidedyet.2)_________theplanwillbecarriedoutisstillunknown.3)_________thebuildingofthecarfactorywillbestartedhasn’tbeendecidedyet.4)_________teamwillwinthematchisstillunknown.5)_________weneedismoretime.6)_________wecanarriveattheairportbefore8o’clockisstillaquestion.WhereWhenWhenWhichWhatWhether1.Wherewillthemeetingbeheldisnotdecided.

Wherethemeetingwillbeheldisnotdecided.×√结论2：主语从句应使用陈述句语序_____doshoppingdependsontheweather.

A.WhenwillweB.WhenwewillC.WhatwillweD.Whatwewill1)_____yousaidyesterdayisright.2)_____sheisstillaliveisaconsolation（安慰）.3)_____helostthebikeworriedhimalot.4)_____causedtheaccidentremainsunknown.

5)_____mademattersworsewas____nightbegantofall.6)_____wecan’tgetseemsbetterthan______wehave.WhatThatThat注：what

与that在引导主语从句时的区别what在从句中充当句子成分，如主语、宾语、表语，而that则不然。

WhatWhatthatWhatwhat二.it做形式主语为了防止句子头重脚轻，通常把形式主语it放在主语位置，真正主语搁置于句末。1）It+be+名词/形容词+主语从句Exx:很肯定他会赢得比赛的。________________thathewillwinthematch.Itisverylikelythattheywillholdameeting.Itisimportantthatweallshouldattendthemeeting.It

isstillamysterywhatcausedtheaccident.Itiscertain2）It+不及物动词(seem,happen,matter)+主语从句Itseemsthathehasseenthefilm.似乎…Ithappenedthattheywereabsent.碰巧…3）It＋过去分词＋从句ItissaidthatPresidentObamawillvisitourschoolnextweek.据说…Itisdecidedthat…据决定Itisbelievedthat…据认为ItisknowntoallthatLiHuaisthebeststudentinourclass.众所周知…Whateverhesaysisofnoimportance.Whoeversaysthisiswrong．但谓语动词用单数还是复数，不可一概而论，而要视句子的意义而定

WhatIneedismoney.WhatIneedarebooks.三.在主语从句中，谓语一般用单数。Whenandwherewe’llholdthemeeting_____notbeendecidedyet.A.hasB.isC.haveD.are

1.____makesthisshopdifferentisthatitoffersmorepersonalservices.AWhatBWhoCWhateverDWhoever练习ThesewildflowersaresospecialthatIwoulddo____Icantosavethem.AwhateverBthatCwhichDwhichever3____intheregulationsthatyoushouldnottellpeoplethepassportofyoure-mailaccount.AWhatitrequiredBWhatrequiresCItisrequiredDItrequires1.Itisprettywellunderstood_____controlstheflowofcarbondioxideinandouttheatmospheretoday.A.thatB.whenC.whatD.how考题链接2._____madetheschoolproudwas____morethan90%ofthestudentshadbeenadmittedtokeyuniversities.A.What;becauseB.What;thatC.That;whatD.That;because3.______hereferredtoinhisarticlewas