TheAttributiveClause定语从句（2）定义：在句子中作定语，修饰名词或代词的从句。先行词：被定语从句修饰的名词或代词。关系词：连接主句与定语从句的连接词，充当一定成分。关系代词as的用法4.用于thesame…as…,such…as…，as…as…,so…as…短语句型中。e.g.Suchbooksasyoutellmeareinteresting.ThisisthesamebookasIlentyouyesterday.1.as在从句中作主语时，后面常接行为动词的被动语态，如beknown，besaid，bereported等，如从句中行为动词是主动语态，一般要用which作主语。e.g.Shehasbeenlateagain,aswasexpected.Tomhasmadegreatprogress,whichmadeushappy.只用that的情况③先行词是序数词或形容词最高级修饰时。⑥先行词是疑问词who,which,what时，定语从句用that而不用who,(whom)和which引导。关系副词的用法2、如定语从句中谓语结构是被动结构，有主语，则用关系副词。关系副词和先行词的关系关系副词when,where,why可以用适当的介词+which来替代。如：when=in/on/at…+which,where=in/on/at…+which,why=for+which介词的位置非常灵活，有时放在关系代词之前，有时放在动词之后。eg.1.Iwon’tforgetthedatewhen(onwhich)Iwasborn.2.Thisistheroomwhere(inwhich)Ilived.=ThisistheroomwhichIlivedin.3.Idon’tknowthereasonwhy(forwhich)hehaven’tcometoday.4.Tomstillremembersthedayswhen(inwhich)theylivedinTianjin.关系代词前介词的确定4.非限制性定与从句中，要表示先行词的一部分时，可用“数词/代词+of+关系代词”的结构，如：e.g.Thereare50studentsinourclass,two-thirdsofwhomhavebeentoBeijing.1.I’llneverforgetthedays______________weworkedtogether.2.I’llneverforgetthedays___________wespenttogether.3.IwenttotheplaceIworkedtenyearsago.4.Iwenttotheplace_____________Ivisitedtenyearsago.5.Thisisthereason_____________________hewaslate.6.Thisisthereason_____________________hegave.介词+关系代词的情况1介词+关系代词的情况2介词+关系代词的情况3介词+关系代词的情况4定语从句复习非限制性定语从句Teacherswhoarekindarepopularwiththestudents.MrWang,whoiskind,ispopularwiththestudents.ThetownwhereIliveisbeautiful.Kenli,whereIlive,isbeautiful.非限制性定语从句和单句的比较as引导的非限制性定语从句as引导的非限制性定语从句(1)as引导的限制性定语从句(2)在非限制性定语从句中