seaGrammar主语从句.ppt

名词性从句在一个句子中充当主语的时候 我们称之为主语从句 Thatfoodcompanies should oftenusered green orangeandyellowisnotsurprising 主语从句可以由that引导 引导词that在主语从句中不作任何成分 也没有中文意义 当主语从句位于句首时 that不能省略 Thatweneedmorepracticeisquiteclear Thattheycometoourrescuedeeplytouchedourhearts Thatherhairwasturninggreyworriedherabit 2 如果主语很长 常用以 it 作形式主语的结构 ItisafactthatEnglishhasbeenacceptedasaninternationallanguage 英语已成为一种国际性的语言是不争的事实 ThatEnglishhasbeenacceptedasaninternationallanguageisafact 常见的it作形式主语的结构 It be adj that从句It be said believed known that从句It seems happens appears that从句It be apity fact that从句 Itisimportantthatweshouldlearnaforeignlanguage Itisstillunknownwhichteamwillwinthematch Itseemsthateveryoneknowswhathashappened Itisapitythatyoufailedtopasstheexam 3 主语从句也可以由疑问代词 what who whom which哪一个 和疑问副词 where when why how 或wh ever类疑问词引导 Whatcoloursmeanttoearlyhumansislittleknowntous Whoshewillinvitetoherbirthdaypartyisnotmyconcern WherethenextWorldExpowilltakeplaceisknowntoalmosteveryone WherethenextWorldExpowilltakeplaceisknowntoalmosteveryone Whenthemeetingwillbeheldhasnotbeendecidedyet Whyhegaveupsingingisofgreatinteresttoreporters Howthelittleboygotoutofthecaveremainsasecret 4 主语从句作主语往往被看作单数 WhenandwhyJackcametoShanghaiisnotknown 不知道杰克是什么时候和为什么来上海的 5 由疑问词引导的主语从句要保持陈述语气 Whatweshoulddobeforethemeetingisnotclear 6 由疑问词引导的主语从句 同样可以用 it 作形式主语 Itisprettywellunderstoodwhatcontrolstheflowofcarbondioxideinandoutoftheatmosphere 是什么控制着二氧化碳在空气中的含量在今天是很好理解的 7 主语从句也可以由whether引导 用以描述两种截然不同的可能性 注意 1 if也表示是否 可以引导宾语从句 但是主语从句 表语从句只能用whether引导 2 ornot通常可以直接跟在whether后面 或者在主语从句中的宾语或宾语补足语后面 或者省略 Whetherwecansolvethisproblemremainsunknown Whetherthismaterialcanbeusedinourfactoryhasnotbeendecidedyet WhetherpeoplewhochooseredonthetestareenergeticornothasbeenstudiedbyaSwisspsychologist Whetherornotpeople spulseratesdecreasewhentheyseebluehasarousedinterest Whetherstudentsneedtogotoschooltomorrowwillbeannouncedontheradio Exercises 主语从句跟踪练习 很明显 她们确实是双胞胎 她们的脸型很相似 wasclearfromthefacialresemblancebetweenthem Thattheyweretwins 毫无疑问她考试成绩会很好 Itiscertain thatshewilldowellinherexam 很可能他把一切都告诉她了 thathetoldhereverything Itisprobable likely 据报道中国又成功地发射了一颗人造地球卫星 Itisreported thatChinahassentanotherman madeearthsatelliteintoorbit 众所周知 地球围绕太阳转 isknowntoall Thattheearthmovesaroundthesun 我们下周是否去野餐还不确定 isuncertain Whetherwewillholdapicnicnextweek 物体在水中比在空气中轻 这是常识 thatobjectsarelighterinwaterthantheyareinair Itiscommonknowledge 这对我们有害还是有利还得看一看 Itremainstobeseen whetheritwilldousharmorgood 留几个护士在这儿是很有必要的 thatseveralnurses should stay Itisnecessary 他是否加入我们 没有太大的差别 won tmaketoomuchdifference Whetherhewilljoinus I Completethesentences 1 谁最先到将得到奖品 willreceiveaprize 2 你需要的是更多的经验 ismoreexperience Whoevercomesinfirst Whatyouneed 3 我所有的东西请随便使用 isatyourservice 4 不管他想什么都没关系 doesn tmatter 5 这里说的话都应当保密 mustbekeptsecret WhateverIhave Whateverhethinks Whateverwassaidhere leavestheroomlastoughttoturnoffthelights A AnyoneB ThepersonC WhoeverD Who C II Choosethebestanswer 2 broketheglassyesterdayisnotclear A WhoB whenC whetherD That A 3 hesaidatthemeetingastonishedeverybodypresent A WhyB WhatC WhenD Thematter B 4 hashelpedtosavethedrowninggirlisworthpraising A WhoB TheoneC AnyoneD Whoever D 5 isstillunknown A WhenhewillcomeB WhenwillhecomeC WhenwillcomeheD Hewhenwillcome A 链接高考 1 wasmostimportanttoher shetoldme washerfamily 2008山东卷 A ItB ThisC WhatD As 2 wantstostayinahotelhastopaytheirownway 2008浙江卷 A AnyoneB TheoneC WhoeverD Who C C 3 isknowntousallisthatthe2008OlympicGameswilltakeplaceinBeijing 福建卷 A ItB WhatC AsD Which B 4 Ithasbeenproved eatingvegetablesinchildhoodhelpstoprotectyouagainstseriousillnessesinlaterlife 2008上海卷 A ifB becauseC whenD that D 5 mattersmostinlearningEnglishisenoughpractice 2007全国卷II A WhatB WhyC WhereD Which 6 hereferredtoinhisarticlewasunknowntothegeneralreader 2007上海卷 A ThatB WhatC WhetherD Where A B 7 makesthisshopdifferentisthatitoffersmorepersonalservices 2008辽宁卷 A WhatB WhoC WhateverD Whoever 8 parentssayanddohasalife longeffect