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1、定语从句*拨高篇*我们已经学过定从的基本考点，现在针对性地来学习特殊现象和难点。一、特殊关系代词1. 常用关系代词有that，which，who（m），whose2. as也可作关代。但是：① 先行词必须有such和thesame② 或用于as/so…as结构Suchteacherasheknowsareallkindtohim.Iwanttoknowthesamepenasyouareusing.Letstudentsreadsuchbooksaswillmakethemlearnmoreknowledge.Hecanliftsoh
2、eavyastoneasnooneelsecan.【注意】thesame…as…结构中，后面为定从时，可换为that，指“同一个”3.As也可引导非限定从，待主句整个内容或部分内容。它引导的从句，主句前后都可放Shewasquiteright,asHarrysoondiscovered.Asisknowntousall,Chinaisadevelopingcountry.Asweallknow,theearthisround.4.作介词宾语时，关代的位置。① 关代whom，which在从句中作介词宾语时，可以和介词一起放在先行词和从句
3、之间。(例句一)为使关代紧跟它所修饰的N，也可把介词放在从句中有关动词的后面（例句二）例句一：Theathletetowhomyoutalkedisafamouslong-distancerunner.例句二：Thepersonwhomyoutalkedtoisafamousathlete.② 含介词的动词短语一般不拆开，介词仍放在动词的后面Isthisthewatchwhichheislookingfor?③ 关代that在从句中作介词宾语时，介词不能再在他的前面，只能放在从句中有关动词的后面Thecitythatshelivesi
4、nisveryfaraway.[对比]Thecityinwhichshelivesisveryfaraway.④ 关代whose也可在从句中与它所修饰的名词一起做介词宾语Thebossinwhosecompanymyfatherworkedisaverykindperson.二、关系副词的用法中需要注意的点1．表时间的先行词在从句中作S或O时，不能用whenHisauntisgoingtoBeijinginOctober,whichisthebestseasonthere.(which指october）从句主语Ineverforget
5、thedays（that/which）Ispentwithyourfamily.(that/which指days)从句宾语2．Itisthefirsttime从句中，that时惯用法，不用whenItisthefirsttimethatIhavebeentotheGreatWall.3．When有时可省，l特别是当它的先行词是介词短语中的词Hediedonthedays(when)hissonarrived.Inthedays(when)thepainterwasinthecountryside,helearnedalot.Buthe
6、lpneverstoppedcomingfromtheday(when)shewasill.主句宾语l先行词为：nexttime,thefirsttime,thesecondtime,bythetime,anytime,eachtime,everytime,themoment,allthetime,theday,theweek,themonth,theyear等，后面的定从常省略whenBythetime(when)hewasten,hehadalreadybuiltachemistrylabforhimself.Thecatburn
7、edherpaweachtime(when)shepullanut(核桃)out.I'mthinkingaboutyouallthetime（when）youareaway.4.that可代替关系副词的特殊情况5.Why指原因，引导的从句专门修饰reason.可用that/forwhich替换或者省略。Thereasonwhyhewaslatewasthathiswifewasill.Idon'tknowthereasonwhyhewaslate.Idon'tknowthereasonthathewaslate.Idon'tknowt
8、hereasonforwhichhewaslate.Idon'tknowthereasonhewaslate.当先行词时way时，连词用that/inwhich或不用连词：Thisisthewaythathedidit.
