高中主语从句

精雕细琢，只为更优秀的你！学校地址：中山市石岐区兴中大厦二层（假日广场对面，民生银行楼上）咨询电话：[phone]升高二英语名词性从句之主语从句姓名：年级：教师：刘琳学习过程一、主语从句的概念与类型主语从句在复合句中作主句的主语,引导主语从句的词有从属连词that,whether以及连接代词who,what,which,whoever,whatever,whichever和连接副词when,where,why,how等.一、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.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.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…+(should)do________________(很可能)shewillcomebacktomorrow.*_________________(很明显)thismeasureiseffective.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.4)It+be+过去分词+从句Itissaidthat...据说……Itisknowntoallthat...众所周知……精雕细琢，只为更优秀的你！学校地址：中山市石岐区兴中大厦二层（假日广场对面，民生银行楼上）咨询电话：[phone]Itisreportedthat...据报道……Itisbelievedthat..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.二、.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。它们在句子中担任主干成分，并用陈述句形式)Whatmanyscientistsbelieveisthattheearthisround…Whowilltakepartinthemeetinghasnotbeendecided.Whoeverbreaksthelawwillbepunished.Whateverwassaidheremustbekeptsecret.三、.连接副词when，where，how，why等。Whytheysuddenlydisappearedstillremainsamystery.Whentheywillleaveisnotdecided.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误：Theyshouldlikeeachotherisnatural.正：Thattheyshouldlikeeachotherisnatural2)whether引导主语从句，if不可误：IfMaryreallyheardhimisreallydoubtful.正:WhetherMaryreallyheardhimisreallydoubtful.Completethesentencesusingwhat,whether,where,when，who,why,howorthat.1.(_____isneededforsuccess)isyourhardwork.2.(______theywillarrive)hasbeentoldtotheteacher.2.(_____wewillgotomorrow)hasn’tbeendecidedyet.3.(______canjoininthesportmeet)isdecidedbytheteacher.4.(________itwillrainornot)isnotclear.Conclusion:主语从句作主语时，谓语动词一般用单数形式。四、主语从句的规律：找出下列句子中的错误，并总结规律例规律一、主语从句一律用陈述语序，即主语在前，谓语在后。1.Whenwillhecomeisnotknown..正：Whenhewillcomeisnotknown.规律二、连词that在从句中无实际意义，但不能省略。精雕细琢，只为更优秀的你！学校地址：中山市石岐区兴中大厦二层（假日广场对面，民生银行楼上）咨询电话：[phone]例2.Hewillnotcometothemeetingthiseveningistrue.正：Thathewillnotcometothemeetingthiseveningistrue.规律三、whether可以引导主语从句，放在句首，但if不能例3.Ifthemeetingwillbeputoffhasnotbeendecidedyet.正：Whetherthemeetingwillbeputoffhasnotbeendecidedyet.规律四、主语从句中的连词不能重叠使用。例4.Thatwhetherhewillhelpothersisafact.正：Thathewillhelpothersisafact.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。例5.Whenhewillcomeareapuzzle.正：Whenhewillcomeisapuzzle.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。1.Whatheneedsisthatbook.2.Whatheneedsaresomebooks.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.5.Itisorderedweshouldleaveatonce.6.Wherehecomesfromareamystery.7.Whatwhetherhelikesthejobisnotclear.8.Whoheisandwhereheisfromisimportant.9.Whathesawisthestarsinthesky.1.___hemadeanimportantspeechatthemeetingwastrue.A.ThatB.WhyC.WhatD.How2.___we’llgocampingtomorrowdependsontheweather.AIfBWhetherCThatDWhere3.Itworriedherabit___herhairwasturninggray.A.whetherB.thatC.whatD.when4.WhatIsayandthink___noneofyourbusiness.A.isB.areC.hasDhave请用恰当的主语从句连词填空:What,it,that,whether,whoever1._____youdon’tlikehimisnoneofmybusiness.2._____hesaidatthemeetingastonishedeverybodypresent精雕细琢，只为更优秀的你！学校地址：中山市石岐区兴中大厦二层（假日广场对面，民生银行楼上）咨询电话：[phone].________the2000OlympicGameswillbeheldinBeijingisnotknownyet.4.________we’llgocampingtomorrowdependsontheweather.5.________leavestheroomlastoughttoturnoffthelights.用whether\if填空1.Thequestionis________thefilmisinteresting.2.________weshallattendthemeetinghasn'tbeendecidedyet.Correctornot?Ifwewillhaveameetinghasn’tbeendecidedyet.Whetherwewillhaveameetinghasn’tbeendecidedyet.Payattention:放在名词性从句句首，表示“是否”，只能用whether,不能用ifThatshewantstoknowiswhenthepartywillbeheld.Whatshewantstoknowiswhenthepartywillbeheld.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thatHewillgiveuphisjobsurprisesallofus.Thathewillgiveuphisjobsurprisesallofus.Payattention:由that引导的主语从句放在句首，that不能省略。1.___hemadeanimportantspeechatthemeetingwastrue.A.ThatB.WhyC.WhatD.How2.___we’llgocampingtomorrowdependsontheweather.AIfBWhetherCThatDWhere3.___isknowntousallthatAmericaisadevelopedcountry.AWhichBAsCWhatDIt4.It’sknowntousall___aformofenergyA.waterisB.thatwaterisC.iswaterD.thatw