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1、1.定义Lily,oneofmybestfriends,comesfromAmerica.Thethoughtthattheycouldcrossthewholecontinentwasexciting.在主从复合句中，跟在抽象名词后进一步解释、说明该名词的具体内容，作同位语的句子叫同位语从句。引导同位语从句的抽象名词有：news,idea,fact,doubt,suggestion,advice,thought,plan,truth,hope,wish,information,message,order,word等。2.连接词(1)由连词t
2、hat,whether引导的同位语从句。此时它们只起连接作用,从句中不作任何成分。We’lldiscusstheproblemwhetherthemeetingwillbeheldontime.Thenewsthatwewonthegameisexciting.(2)由连接代词who,which,what和连接副词where,when,why,how引导的同位语从句，在从句中作相应的成分。Thequestionwhoshouldgoabroadhasn'tbeendecided.Ihavenoideawhenhewillcomebackhom
3、e.3.使用同位语从句应注意的问题(1)同位语从句只能用whether，不能用if。Ihavenoidea____shelikesthefilm.Theproblemwhetheritisrighthasn'tbeenproved.(2)当主句的谓语较短,而同位语从句较长时,同位语从句常后置,构成分隔式同位语从句。Wordthathehadbeenabroadcame.Wordcamethathehadbeenabroad.ThethoughtthatMaryhadprobablyfallenillcametohim.Thethoughtca
4、metohimthatMaryhadprobablyfallenill.(3)在表示“请求”、“命令”、“建议”等意思的名词后的同位语从句，其谓语动词应用（should）do这种虚拟语气。这类名词有：advice,idea,order,demand,plan,proposal,suggestion,request,requirement,decision等。Imadeasuggestionthatallthechildren_____(leave)thebuilding.Theordercamethatallthegoods____(send
5、)tothedisasterarea.(4)名词doubt肯定形式用whether引导;否定形式用that引导。Ihavesomedoubt_____thepoorgirlcanaffordhereducation.Thereisnodoubt_____hewillwinthegame.4.定语从句与同位语从句的区别Itisafactthatyoucan'tdeny.Itisafactthatshehasdoneherbest.Thenewsthatweheardspreadallovertheschoolcampus.Thenewsthat
6、Mr.LiwillbeournewEnglishteacheristrue.①意义不同：【同】是为了补充说明具体内容；【定】是为了修饰。②引导词：【同】that不做成分，不能省；有whathowwhetherwhatever；【定】that作主或宾，作宾时可省；无whathowwhatever。③被修饰的词：【同】抽象名词：idea,news,fact,thought,truth,suggestion等；【定】所有名词都可以Wearegladatthenewsthathewillhelpus.Wearegladatthenewsth
7、athetoldus.IhavenoideawhenIlivedthere.Iliketheideathatheputforwardto.ThisistheplacewhereourEnglisheveningistobeheld.Heraisedthequestionwhereweweretoholdthemeeting.ThedaywhenNewChinawasfoundedwillneverbeforgotten.Theorderwhenweshouldreturnhasn'treachus.Thatisthereasonwhytheb
8、igfirebrokeout.Wedon'tforgettheproblemwhythisisthebestchoice.真题赏析答案及剖析:1.that考查同位语
