(一)定义及相关术语1.定语从句:修饰栋一名词或代词的从句叫定语从句。定语从勺-舫紧跟在它所修饰的先行词之后。2.先行词:被定语从句修饰的词叫先行词3.关系词:引导定语从句的词叫关系词。关系词有关系代词和关系副词关系代词有:that,which,who,whom,whose,as等关系副词有:whenm,where,why关系词通常有下列三个作用:A.引导定语从句;B.代替先行词;C.在定语从句中担当一个成分。Themanwhoisshakinghandswithmyfatherisapoliceman.关系代词的用法关系代词在从句中可以:指人指物主1宾语that|vY介YwhichXYwho|VY叉V引Y口whom何时可以省略?做宾语时可以省略关系代词的用法练习L.Theeggswerenotfresh.Lboughtthemyesterday.Theeggs(that/which)IboughtwWerenotfresh.2.Thefriendwasnothungry.Hecametosupperlastnight.Thefriendwho/thatcametosupperlastnightwasnot3.Heprefersthecheese.ttccmesfromhisparentsfarm.Heprefersthecheesethat/which“comesfromhispare4.Thenoodlesweredelicious.Youcookedthem.Thenoodles(which/that)youcookedWeredelicious5.Tdon“tlikethepeople.Theysmokealot.Tdon“tlikethepeoplethat/whoSmokealot.关札副词和先行词的关札IstillrememberthedaywhenIcamehere.ontheday=whenThisisthehousewhereIlivedlastyear.inthehouse=yihereTherearemanyreasoriswhypeopieliketraveling,forthereasons=whyIdontlikethewaythatyouspeak.intheway=that关系副词实际上是介词十先行词乙种易混的情况1LDIneverforgetthedaysWhen/inWhichweworkedtogether:2.DILneverforgetthedays_Which_wespenttogether.,“及物动词3.TwenttotheplacewWhere/inWhich_ITworkedtenyearsa80.4.TwenttotheplacesyhichTvisitedtenyearsag0.及物动词5.Thisisthereasonwhy/forwhichhewWaslate.6.Thisisthereasonthat/whichheE及物动词whose通常指人,也可指物,在定语从句中做定语。TvisitedascientistwhosenameisknownalloverthecCountr阜。Hehasafriendwhosefatherisadoctor