主语从句超全讲解加练习.ppt
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Grammar Grammar 主语从句 主语从句 做主语用的名词性从句 因其在复合句中做主语 又称主语从句 引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 Thathewillwiniscertain 他肯定会赢 Whetherhe llcomehereisn tclear 他是否会来这里还不清楚 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It scertainthat 肯定 Itispossiblethat 很可能 Itisunlikelythat 不可能 Itisobviousthat 很明显 Itisnecessary important natural that 很可能 shewillcomebacktomorrow 很明显 thismeasureiseffective should do Itispossiblethat Itisobviousthat 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 2 连接代词who what which whatever whichever whoever Who whom which what可以和ever构成合成词 和what一样引导从句 ever起到强调作用 此类主语从句不能用形式主语it引导 它们在句子中担任成分 不能省略 语序为陈述语序 Whatmanyscientistsbelieveisthattheearthisround Whowilltakepartinthemeetinghasnotbeendecided Whoeverbreaksthelawwillbepunished Whichstudentwillwinisuncertain Whateverwassaidheremustbekeptsecret 这里说的话都应当保密 Whoevermakesmistakesmustcorrectthem 凡犯了错误的人都必须改正 3 连接副词when where how why等 Whytheysuddenlydisappearedstillremainsamystery Whentheywillleaveisnotdecided Wheresheisfromisunknown Howwewillpaintthehousehasnotbeendecided 注意 1 主语从句在句首时 必须由连接词引导 不能省略这些连接词 但是如果用it做形式主语 而把主语从句放在句末时 从属连词that可以省略 误 Theyshouldlikeeachotherisnatural 正 Thattheyshouldlikeeachotherisnatural 正 Itisnatural that theyshouldlikeeachother 2 如果主语从句放在句首 不能用if引导 但是如果用it做形式主语 而把主语从句放在句末时 也可以用if引导 或把if改为whether 误 IfMaryreallyheardhimisreallydoubtful 正 ItwasdoubtfulifMaryreallyheardhim 正 WhetherMaryreallyheardhimisreallydoubtful Completethesentencesusingwhat whether where when who why howorthat 1 isneededforsuccess isyourhardwork 3 wewillgotomorrow hasn tbeendecidedyet 2 theywillarrive hasbeentoldtotheteacher 4 canjoininthesportmeet isdecidedbytheteacher 5 itwillrainornot isnotclear What When How Where whether Who Whether 主语从句作主语时 谓语动词一般用单数形式 Conclusion 主语从句的规律 找出下列句子中的错误 并总结规律 例1 Whenwillhecomeisnotknown 规律一 主语从句一律用陈述语序 即主语在前 谓语在后 正 Whenhewillcomeisnotknown 主语从句的规律 例2 Hewillnotcometothemeetingthiseveningistrue 正 Thathewillnotcometothemeetingthiseveningistrue 规律二 连词that在从句中无实际意义 但不能省略 主语从句的规律 例3 Ifthemeetingwillbeputoffhasnotbeendecidedyet 正 Whetherthemeetingwillbeputoffhasnotbeendecidedyet 规律三 whether可以引导主语从句 放在句首 但if不能 主语从句的规律 例4 Thatwhetherhewillhelpothersisafact 正 Thathewillhelpothersisafact 规律四 主语从句中的连词不能重叠使用 主语从句的规律 例5 Whenhewillcomeareapuzzle 正 Whenhewillcomeisapuzzle 规律五 含主语从句的主句谓语动词多用单数第三人称形式 主语从句的规律 1 Whatheneedsisthatbook 2 Whatheneedsaresomebooks 规律六 what引导的主语从句 可根据表语决定主句动词的单复数形式 规律七 主语从句为了避免头重脚轻现象 用it做形式主语 而把从句放在后面 Thattheearthturnsaroundthesunisknowntoall Itisknowntoallthattheearthturnsaroundthesun 找出错误 并给出理由 1 Whereshallwespendtheholidayisn tdecided 2 Youhavemadeamistakeisafact 3 Ifthepolicemanwillcomeisnotcertain 4 Thatiscertainthatwecanwin weshall Whether It Thatyouhave 5 Itisorderedweshouldleaveatonce 6 Wherehecomesfromareamystery 7 Whatwhetherhelikesthejobisnotclear 8 Whoheisandwhereheisfromisimportant 9 Whathesawisthestarsinthesky that is x are are Exercises PartOne 主语从句单选题 1 hashelpedtosavethedrowninggirlisworthpraising A WhoB TheoneC AnyoneD Whoever D 2 Itwashesaiddisappointedme A what thatB that thatC what whatD that what A 3 we llgocampingtomorrowdependsontheweather A IfB WhetherC ThatD Where B 4 hesaidatthemeetingsurprisedeverybodypresent A WhatB ThatC ThefactD Thematter A 5 wastoreturntoschool A ThatreallyinterestedhimB Whatreallyinterestedhim C WhichreallyinterestedhimD Thatinteresthimreally B 6 makesmistakesmustcorrectthem A WhatB ThatC WhoeverD Whatever C 7 yourmenhavebeenonmylandwithoutpermission A ItseemsthatB Thereseemstobe C ThatseemsD Itseemsfor A 8 Ithasalwayspuzzledmetheoldmanliedared silkribbonontheyoungtree A thatB whyC whereD what B hemadeanimportantspeechatthemeetingwastrue A ThatB WhyC WhatD How 2 we llgocampingtomorrowdependsontheweather AIfBWhetherCThatDWhere Choosethebestchoice 3 Itworriedherabit herhairwasturninggray whetherB thatC whatD when4 WhatIsayandthink noneofyourbusiness A isB areC hasDhave 1 youdon tlikehimisnoneofmybusiness 2 hesaidatthemeetingastonishedeverybodypresent3 the2000OlympicGameswillbeheldinBeijingisnotknownyet 4 we llgocampingtomorrowdependsontheweather 5 leavestheroomlastoughttoturnoffthelights That What Whether Whether Whoever 请用恰当的主语从句连词填空 What it that whether whoever Correctornot Whenthemeetingwillbeheldhaven tbeenknownyet beheldhasn tbeenknownyet Payattention 主语从句的谓语用单数形式 10 thecatdo made Whatthecatdidmadethebabycry What cry Makeasentence 30 1 Thequestionis thefilmisinteresting 2 weshallattendthemeetinghasn tbeendecidedyet 用whether if填空 whether Whether 10 talkabout theuseofcellphone Whattheyaretalkingaboutistheuseofcellphone Makeasentence 30 Ifwewillhaveameetinghasn tbeendecidedyet 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 report getthehighestpoints matchItisreportedthatYaoMinggotthehighestpointsinthematch Makeasentence 30 Correctornot Payattention 此主语从句缺少成分 宾语 故用作成分的what来引导 而不用that Whatshewantstoknowis Thatshewantstoknowiswhenthepartywillbeheld 10 Correctornot Payattention 由that引导的主语从句放在句首 that不能省略 Thathewillgiveup Hewillgiveuphisjobsurprisesallofus 10 Translatethesentence 她是否出席会议 isnotcertain Whethershewillattendthemeeting 20 Itmakestheteacherangrythatthechilddoesn tknowtheanswer teacherangry Don tknowtheanswer Makeasentence 30 hemadeanimportantspeechatthemeetingwastrue A ThatB WhyC WhatD How 2 we llgocampingtomorrowdependsontheweather AIfBWhetherCThatDWhere 3 isknowntousallthatAmericaisadevelopedcountry AWhichBAsCWhatDIt 4 It sknowntousall aformofenergy A waterisB thatwaterisC iswaterD thatwaterto5 Itworriedherabit herhairwasturninggray A whetherB thatC whatD when6 WhatIsayandthink noneofyourbusiness A isB areC hasDhave- 配套讲稿:
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