名詞性從句一．名詞性從句基本概念：在句子中起名詞性作用的從句叫名詞性從句。Peterisinteresting.WhatPetersaidisinteresting.主語主語從句IknowPeter.IknowthatPeterislovely.賓語賓語從句ThisisPeter.ThisiswherePeterlives.表語表語從句Alovelyteacher,Peter,ishere.同位語Thenewsthatwewonthegameisexciting.同位語從句EG:Idon’tknowwhetherwewillgoout.二．名詞性從句連接詞的選擇不作成分that,whether作主語，賓語，表語或定語what,who,whom,which,whose作狀語Where,when,how,whyYoumayborrowwhichbookyoulike.Whosewatchwaslostisknown.三．主語從句1.定義：名詞性從句做主語。2.連接詞不作成分that（不可省略）,whether作主語，賓語，表語或定語what,who,whom,which,whose作狀語Where,when,how,whyThattheearthmovesaroundthesunisknowntoall.Whetherwewillgopicnicingtomorrowdependsontheweather.Whostandsthereismyfather.2.用it作形式主語。Itbe+形容詞/名詞/過去分詞+that從句Itisapitythathedidn’twinthegame.Itiswellknownthattheearthrunsaroundthesun.EX：1.____weareinvitedtotheconcertthiseveningisgoodnewstous.2.____weneedismoretime.3.__willcometohavedinnerisnotknown.4.Itiscommonknowledge____thewhaleisnotafish.5.Itisknown____hehasagreedtomyplan.四.賓語從句1.定義：名詞性從句作賓語。2.連接詞不作成分that,whether,if作主語，賓語，表語或定語what,who,whom,which,whose作狀語Where,when,how,why3.動(dòng)詞的賓語從句。（that可以省略）①及物動(dòng)詞的后面例：Haveyoudeterminedwhichyoushouldbuy,aMotorolaorNokiacellphone?ThebookwillshowyouwhatthebestCEOsknow.

②賓語后有補(bǔ)語，常用it作形式賓語而把賓語從句放在句末。例：Hehasmadeitclearthathewillnotgivein.4.介詞的賓語從句①介詞后可以跟whether和wh-類連接詞引導(dǎo)的從句。不能用if。例：Successdependsonwhetherwemakeenougheffort.MyfellowstudentshavebeguntoacceptmeforwhoIam.②除在except,in,but,besides后，that引導(dǎo)的從句一般不直接做介詞的賓語。，必須用it作形式賓語。例：Iknownothingaboutmynewneighbourexceptthatheisateacher.YoumaydependonitthatIshouldalwayshelpyou.5.whether與if引導(dǎo)賓語從句的區(qū)別①與ornot連用時(shí)，只用whether例：IwanttoknowwhetherornotthetraingoestoKingStreet.②主語放，表語，同位語從句只能用whether例：Whetherhehasagreedtomyplan.③從句作介詞賓語時(shí)，只用whether.例：Scientistsareinterestedinwhetherthesenseofsmellisrelatedtopain.6.doubt在肯定句中，其后的賓語從句用whether，if或that皆可，但在否定句中只用that.例：Ontheotherhand,thereislittledoubtthatpeoplewithlowEQsoftenhaveproblemsgettingonwithotherpeopleanddealingwithdifficultsituation.7.賓語從句的時(shí)態(tài)①主句的謂語動(dòng)詞是一般現(xiàn)在時(shí)，從句的時(shí)態(tài)可根據(jù)實(shí)際情況而定；例：Doyouknowwhentheancientgamesbegan?②主句的謂語動(dòng)詞是一般過去時(shí)，從句的時(shí)態(tài)一般用適當(dāng)?shù)倪^去時(shí)。例：HeaskedmeifIwasreadingthestoryTheOldManandtheSeawhenhewasin.③當(dāng)從句是表達(dá)客觀真理的句子時(shí)，從句用一般現(xiàn)在時(shí)。例：Hesaidthatlighttravelsmuchfasterthansound.五.表語從句1.定義：從句作表語的句子。2.連接詞不作成分that（不可省略）,whether,asif,asthough,because作主語，賓語，表語或定語what,who,whom,which,whose作狀語Where,when,how,why3.asif/asthough引導(dǎo)的表語從句，可用陳述語氣，也可用虛擬語氣例：ItsoundsasifyouarefromthesouthoftheUniteStates.HelooksasifhewerefromtheMars.4.because引導(dǎo)的表語從句時(shí)，主句主語不能用reason.例：Ithinkitisbecauseyouaretooserious.5.主句主語是advice,demand等時(shí)的表語從句，從句用虛擬語氣例：Hissuggestionisthatwe(should)setoffatonce.六.同位語從句定義：從句作同位語的句子。同位語從句常放在fact,news,idea,truth,hope,problem,information,order等抽象名詞后面，說明該名詞的具體內(nèi)容。1..連接詞不作成分that（不可省略）,whether作主語，賓語，表語或定語what,who,whom,which,whose作狀語Where,when,how,why2.主語是advice，proposal等時(shí)的同