同位语从句和定语从句的三点区别

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1、同位语从句和定语从句的三点区别同位语从句和定语从句很相似,但还是有区别的,主要在以下三方面:1.从词类上区别同位语从句前面的名词只能是idea,fact,news,hope,belief,suggestion,proposal,word,thought,doubt,truth,possibility,promise,order等名词｡而定语从句的先行词可以是名词､代词､主句的一部分或是整个主句｡Thepossibilitythatthemajorityofthelaborforcewillworkathomeisoftendiscussed.(同位语从句)Wearenotl

2、ookingintothequestionwhetherheisworthtrusting.(同位语从句)Wordcamethathehadbeenabroad.(同位语从句)Ourteamhaswonthegame,whichmadeusveryhappy.(定语从句)Thedoctorwhomyouarelookingforisintheroom.(定语从句)Hismotherdidallshecouldtohelphimwithhisstudy.(定语从句,代词all作先行词｡)2.从性质上区别定语从句是从句对其先行词的修饰或限制,属于形容词性从句的范畴;而同位语从句

3、是从句对前面抽象名词的进一步的说明和解释,属于名词性从句的范畴｡Thenewsthatourteamhaswonthegamewastrue.(同位语从句,补充说明news到底是一个什么消息｡)Thenewsthathetoldmeyesterdaywastrue.(定语从句,news在从句中作told的宾语｡)ImadeapromisethatifanyonesetmefreeIwouldmakehimveryrich.(同位语从句,补充说明promise到底是一个什么诺言｡)Themothermadeapromisethatpleasedallherchildren.(

4、定语从句,promise在从句中作pleased的主语｡)3.从引导词及其在句子中的成分上区别有些引导词如how,whether,what可以引导同位语从句,但不能引导定语从句｡Thatquestionwhetherweneedithasnotbeenconsidered.(同位语从句)Ihavenoideawhathashappenedtohim.(同位语从句)引导词that引导定语从句时,在从句中一般作主语或宾语(指物时还可以用which代替),并且作宾语时常常省略｡that在同位语从句中仅起连接作用,不充当任何成分,并且不能省略,也不能用which来代替｡Theord

5、erthatweshouldsendafewpeopletohelptheothergroupswasreceivedyesterday.同位语从句,是对order的具体解释,that虽不作成分,但不能省略｡Theorderthatwereceivedyesterdaywasthatweshouldsendafewpeopletohelptheothergroups.定语从句,是名词order的修饰语,that在从句中作received的宾语,可以省略｡1.Alongwiththeletterwashispromise______hewouldvisitmethis

6、comingChristmas.A.whichB.thatC.whatD.whether2.Theotherday,mybrotherdrovehiscardownthestreetat_______Ithoughtwasadangerousspeed.A.asB.whichC.whatD.that3.Luckily,we’dbroughtaroadmapwithout_______wewouldhavelostourway.A.itB.thatC.thisD.whichKeys:1.B2.B3.D