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1、定语从句复习(1)如果先行词是all,much,anything,something,nothing,everything,little,none等不定代词，关系代词一般只用that，不用which。例如：Allthebooksheboughtfromthelibrarywerelost.A.thatB.whichC.ofwhichD.what(2)先行词有两个，既有人也有物，要用that。Weweretalkingaboutthepersonsandthingsthatwerememberedinourschool.关系代词
2、that和which的区别1.宜用that引导的定语从句A(3)如果先行词被形容词最高级以及序数词（first,last,theonly,thevery等）词修饰，关系代词常用that.Thatistheonlywaythatleadstoyoursuccess.那是通向你成功的唯一之路。(4)当主语是疑问词which或who时。whoistheboythatwonthegoldmedal?2.宜用which引导的定语从句当定语从句的介词提前时，要用which。Thehouseinwhichtheylivedlastyearh
3、asbeenrebuilt.引导非限制性定语从句时，要用which。Heboughtarailwayticketforthewoman,whichhelpedheralot.as,which非限定性定语从句由as,which引导的非限定性定语从句，as和which可代整个主句，相当于andthis或andthat。As一般放在句首，which在句中。Asweknow,smokingisharmfultoone'shealth. Thesunheatstheearth,whichisveryimportanttous.Alice
4、receivedaninvitationfromherboss,___cameasasurprise. A.itB.thatC.whichD.he Itrainedhardyesterday,____preventedmefromgoingtothepark.. A.thatB.whichC.asD.it不同之处主要有两点：(1)as引导非限制性定语从句，可放在主句之前，或者主句之后，甚至可以切割一个主句；which引导的非限制性定语从句只能放在主句之后。另外，as有“正如……，正像……”的意思asanybodycansee,
5、asisknown,aswehadexpected,as(it)oftenhappens,(2）as代表前面的整个主句并在从句中作主语时，从句中的谓语必须是系动词；若为行为动词，则从句中的关系代词只能用which。（3）当非限定性从句是否定句或表示否定意义是只能用which.Hecamehereverylate,whichwasunexpected.(3)当先行词受such,thesame修饰时，常用as Ihaveneverheardsuchastoryashetells. Heisnotsuchafoolashelooks
6、. ThisisthesamebookasIlostlastweek.注意：当先行词由thesame修饰时，偶尔也用that引导定语从句，但是和由as所引导的定语从句意思不同。SheworethesamedressthatsheworeatMary’swedding.她穿着她在MARY婚礼上穿过的同一条裙子。Sheworethesamedressasheryoungsisterwore.她穿着和她妹妹所穿的一样的裙子。判断关系代词与关系副词方法一：用关系代词，还是关系副词完全取决于从句中的谓语动词。及物动词后面无宾语，就必须要
7、求用关系代词；而不及物动词则要求用关系副词。例如：ThisisthemountainvillagewhereIstayedlastyear.I'llneverforgetthedayswhenIworkedtogetherwithyou.判断改错1.ThisisthemountainvillagewhereIvisitedlastyear.2.IwillneverforgetthedayswhenIspentinthecountryside.3.Thisisthemountainvillage(which)Ivisitedla
8、styear.4.I'llneverforgetthedays(which)Ispentinthecountryside.FFTT方法二：准确判断先行词在定语从句中的成分(主、谓、宾、定、状)，也能正确选择出关系代词/关系副词。Isthismuseum___youvisite
