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1、1.同位語從句theAppositiveclause(1)同位語從句的定義在復合句中用作同位語的從句稱為同位語從句。同位語從句是名詞性從句的一種。它在句中起同位語的作用。它一般放在fact,news,idea,truth,hope,problem,information,belief,thought,doubt,promise,question等名詞的后面,對前面的名詞作進一步的解釋,說明前面名詞的具體含義。引導同位語從句的詞有連詞that,連接副詞how,when,where,whether,what等。e.g.The
2、hopethathemayrecoverisnotgoneyet.Theproblemwhetherweshouldcontinuetodotheexperimenthasbeensolved.Ihavenoideawhenhewillcomeback.同位語從句有時被別的詞把它和名詞隔開：注意:ThestorygoesthatWilliamTellkilledthekingwithanarrow.Wordcamethattheirteamhadwon.⑵同位語從句的表現形式:①由that引導Thefactthatyou
3、haven’tenoughtimetodotheworkissimplyunbelievable.Thehopethathemaycomehereisnotgoneyet.ThenewsthathehasbeenelectedpresidentoftheUnitedStatesistrue.Thetruththatheavyobjectsandlightobjectsfallatthesamespeedisknowntoall.Theproblemthatshelaterdevelopedaseriouslungdise
4、asebotheredscientists.②由whether引導Thequestionwhetherweneedmoretimetodotheworkhasnotbeendiscussed.③由when引導Ihavenoideawhentheywillgo.2.同位語從句與定語從句的區(qū)別:同位語從句與定語從句在使用中常?；煜?我們可以從以下幾個方面區(qū)別它們:①同位語從句說明的名詞大都是抽象名詞;定語從句所修飾、限定的名詞或代詞有抽象的也有不抽象的。Weexpressthehopethattheywillcometovi
5、sitChinaagain.(同位語從句)Thosewhowanttogopleasesigntheirnameshere.(定語從句)②同位語從句所說明的名詞與從句沒有邏輯關系；定語從句所限定的名詞是從句邏輯上的主語、賓語、表語、定語、狀語等。Thenewsthattheywonthematchistrue.(同位語從句,news和從句沒有邏輯關系)Thenewsthatyoutoldusyesterdayistrue.(定語從句,news是told的邏輯賓語)Theorderwhenweshouldgobackhas
6、n’treachedus.(同位語從句,order和從句沒有邏輯關系)ThedaywhenNewChinawasfoundedwillneverbeforgotten.(定語從句,day是founded的邏輯狀語)③同位語從句主要由連接詞that引導,有時也可用when,where,who,whether等引導;定語從句由關系代詞或關系副詞引導。Thenheraisedthequestionwheretheyweretogetthemachineneeded.(同)Doyouknowtheplacewherehewasb
7、orn?(定)同位語從句與先行詞一般可變成一個完整句子,謂語動詞用be的不同形式。Heheardthenewsthattheirteamhadwon.此句可以變?yōu)橐粋€表語從句:Thenewswasthattheirteamhadwon.從引導詞來看:引導詞that在同位語從句中是連詞,只起連接作用,無具體詞義,that不可省略;that在定語從句中是關系代詞，它在從句中充當一定成分—主語或賓語，有具體詞義,作賓語時還可以省略。例如：a)Thefactory______wevisitedyesterdayisachemic
8、alone.b)Thenews______hewillleaveforShanghaiistrue.(that)that定語從句同位語從句看電影學同位語從句onceitravelledsevenseastofindmylove andonceisangsevenhundredsongs well,maybeistil
