人民教育出版社英语选修八主语从句复习课件.ppt

Grammar,主语从句,Grammar,3.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。,Whowillgoisimportantforme.Whichisthebestisnotclear.Whydinosaursdiedoutisunknown.Wherewewillgettogetherhasnotbeendecided.Howshecankeephealthyisasecret.Whetherhewillcomeisnotveryimportant.,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)doesntmattermuch.,Whetherhecanbuytheplanetickets,Whetherhelltakepartintheplay,1.Ifshewillcomeisnotimportant.Whethershewillcomeisnotimportant.2.Ifshewillhaveenoughtimeisaquestion.Whethershewillhaveenoughtimeisaquestion3.Ifhewillhandinhishomeworkisaquestions.Whetherhewillhandinhishomeworkisaquestions.,结论1：在主语从句中只能用whether,不能用if,3wh-疑问词包含意思，并在从句中充当成分。,_shewillbebackisstillaquestion._youtoldmejustnowwasreallyasurprise._wewillholdthebasketballgametomorrowisnotimportant._classwillwinthefootballgameisnotclear._willmeethimisnotdecided.,When,What,Where,Which,Who,_breaksthelawshouldbepunished._hashelpedtosavethedrowninggirlisworthpraising._tellsliesiswrong,Whoever,Whoever,Whoever,填空练习：1)_themeetingwillbeheldnextweekhasntbeendecidedyet.2)_theplanwillbecarriedoutisstillunknown.3)_thebuildingofthecarfactorywillbestartedhasntbeendecidedyet.4)_teamwillwinthematchisstillunknown.5)_weneedismoretime.6)_wecanarriveattheairportbefore8oclockisstillaquestion.,Where,When,When,Which,What,Whether,1.Wherewillthemeetingbeheldisnotdecided.Wherethemeetingwillbeheldisnotdecided.2.Whenwilltheworkbefinishedisunknown.Whentheworkwillbefinishedisunknown.3.Whatwillhedoaftergraduationisaquestion.Whathewilldoaftergraduationisaquestion.,结论2：主语从句应使用陈述句语序,_doshoppingdependsontheweather.A.WhenwillweB.WhenwewillC.WhatwillweD.Whatwewill,1)_yousaidyesterdayisright.2)_sheisstillaliveisaconsolation（安慰）.3)_helostthebikeworriedhimalot.4)_causedtheaccidentremainsunknown.5)_mademattersworsewas_nightbegantofall.6)_wecantgetseemsbetterthan_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。,What,Whatthat,Whatwhat,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.,Itisstillamysterywhatcausedtheaccident.,Itiscertain,2）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,1.Thisisnaturalthattheyshouldlikeeachother.2.Itistruehehasmadeaveryimportantdiscoveryinchemistry.3.Itdoesntmatterthatheiswrongornot.4.ItisknowtoallthatLuXunisafamousauthor.,TrueorFalse,It,that,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。,Whenandwherewellholdthemeeting_notbeendecidedyet.A.hasB.isC.haveD.are,1._makesthisshopdifferentisthatitoffersmorepersonalservices.AWhatBWhoCWhateverDWhoever,练习,ThesewildflowersaresospecialthatIwoulddo_Icantosavethem.AwhateverBthatCwhichDwhichever,3_intheregulationsthatyoushouldnottellpeoplethepassportofyoure-mailaccount.AWhatitrequiredBWhatrequiresCItisrequiredDItrequires,1.Itisprettywellunderstood_controlstheflowofcarbondioxideinandouttheatmospheretoday.A.thatB.when