高中英语 主语从句复习课件 新人教版选修8.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 doesn tmattermuch whetherhecanbuytheplanetickets whetherhe lltakepartintheplay 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 themeetingwillbeheldnextweekhasn tbeendecidedyet 2 theplanwillbecarriedoutisstillunknown 3 thebuildingofthecarfactorywillbestartedhasn tbeendecidedyet 4 teamwillwinthematchisstillunknown 5 weneedismoretime 6 wecanarriveattheairportbefore8o clockisstillaquestion 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 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 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 itdoesn tmatterthatheiswrongornot 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 whenandwherewe llholdthemeeting notbeendecidedyet a hasb isc haved are 1 makesthisshopdifferentisthatitoffersmorepersonalservices awhatbwhocwhateverdwhoever 练习 thesewildflowersaresospecialthatiwoulddo icantosavethem awhateverbthatcwhichdwhichever 3 intheregulationsthatyoushouldnottellpeoplethepassportofyoure mailaccount awhatitrequiredbwhatrequirescitisrequiredditrequires 1 itisprettywellunderstood controlstheflowofcarbondioxideinandouttheatmospheretoday a thatb when