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1、一：关系代词as引导的定语从句：1）as引导的限制性定语从句，一般先行词前有such，thesame修饰，构成such+名词as……thesame+名词+as….as可以充当主语，宾语或表语,像…..之类的，像…..一样的和…….同样的1. Heisnotthesamemanashewas.2.SuchgirlsasheknowsaregoodatEnglish.3.Wehavefoundsuchmaterialsasareusedintheirfactory.thesame+名词+as……..thesame+名词+that……像….一样的就是同一人或物Thi
2、sisthesamebikeaswelostyesterday.Thisisthesamebikethatwelostyesterday.3)as引导的非限制性定语从句，位置灵活，可位于句首，句中，句尾，as“正如，正像“Aseveryoneknows,Chinaisabeautifulcountrywithalonghistory.正如每个人都知道，中国是一个有着悠久历史的美丽国家。Theearth,asweknow,movesroundthesun.地球，我们都知道，围着太阳转。Tomworkshardandiswillingtohelpothers,as
3、weallknow.汤母工作努力，并且乐于助人，这一点我们都知道。常见的as引导的非限制定语从句asweallknowasisknownaseveryknowsaswe(had)expectedasismentionedabove注意：as引导的非限制性定语从句与which引导的非限制性定语从句异同：1）都可指代整个句子，但as从句位置灵活，可位于句首，句中，句尾，”正如正像”2）which引导的从句只位于主句之后，意为“这一点”,主从句一般是因果关系_____isknown,theearthisround.Shewaslateagain,______made
4、theteacherangry.AswhichTheroadwastooslippery,________causedlotsofaccidents.Sheenteredagooduniversity,_____wehadexpected.whichas二非限制性定语从句非限制性定语从句先行词与从句间没有逗号隔开先行词与从句之间有逗号隔开先行词是名词或代词先行词是名词，代词或前面整个句子（一般which指代整个句子）关系代词，关系副词，介词+关系代词引导不能用that引导，一般不用why引导而用forwhich代替限制性定语从句关系词做宾语时可省关系词做宾语时
5、不可省限定先行词对现行词起补充说明作用Theman,whohasthreechildren,ismyuncle.那个人，有三个孩子，是我的叔叔。Themanwhohasthreechildrenismyuncle.那有三个孩子的人是我的叔叔。Shewaslateagain,whichmadetheteacherupset.Thisismymotorbike,whichwassenttomebymyuncleThevase,whosepriceisalittlehigh,isvaluable.Thegirl,towhomItalkedjustnow,wasthe
6、managerofthatcompany.Thefactory,whereIworked,belongedtoJapan.Thewar,when/duringwhichChinesefoughtagainstJapanese,last(持续）eightyears.1.Sheheardaterriblenoise,_______broughtherheartintohermouth.a.itb.whichc.thisd.that2.Theweatherturnedouttobeverygood,____wasmorethanwecouldexpect.a.wha
7、tb.whichc.thatd.it3.CarolsaidtheworkwouldbedonebyOctober,＿＿＿＿＿personallyIdoubt very much. a.itb.thatc.whend.which4.Dorothywasalwaysspeakinghighlyofherroleintheplay,________,ofcourse,madetheothersunhappy. a．whob．whichc．thisd．what5.Iboughtanancientchinesevase,_____wasveryreasonable
8、. a.whichpriceb.it
