限制性定语从句与非限制性定语从句

限制性定语从句与非限制性定语从句定语从句有限制性和非限制性两种。限制性定语从句是先行词不可缺少的部分，去掉它主句意思往往不明确；与先行词之间不能用逗号分开;非限制性定语从句是先行词的附加说明，去掉了也不会影响主句的意思，它与主句之间通常用逗号分开。例如：Thisisthehousewhichweboughtlastmonth.这是我们上个月买的那幢房子。（限制性）Thehouse,whichweboughtlastmonth,isverynice.这幢房子很漂亮，是我们上个月买的。（非限制性）非限制性定语从句•当先行词是专有名词或物主代词和指示代词所修饰时，其后的定语从句通常是非限制性的。•例如：•CharlesSmith,whowasmyformerteacher,retiredlastyear.•查理•史密斯去年退休了，他曾经是我的老师。•Myhouse,whichIboughtlastyear,hasgotalovelygarden.•我去年买的的那幢房子带着个漂亮的花园。•Thisnovel,whichIhavereadthreetimes,isverytouching.•这本小说很动人，我已经读了三遍。非限制性定语从句•非限制性定语从句还能将整个主句作为先行词,对其进行修饰,这时从句谓语动词要用第三人称单数。•例如：•HeseemsnottohavegraspedwhatImeant,whichgreatlyupsetsme.•他似乎没抓住我的意思，这使我心烦。Liquidwaterchangestovapor,whichiscalledevaporation.•液态水变为蒸汽，这就叫做蒸发。非限制性定语从句中不用that，而用which，who，whom的情况Hemadethesamemistakesagain,_____madehisparentsveryangry.YesterdayIboughtadictionary,_______costmemorethan100yuan.MrSmith,_______gaveatalkseveralmonthsago,willcomeagain.Myunclehascomebackfromabroad,________Ihaven’tmetforalongtime.whichwhichwhowhom在非限制性定语从句中，指事物用which，指人用who或whom。注意•说明：关系代词that和关系副词why不能引导非限制性定语从句。•先行词为前面的整个主句时只能用关系代词which练习:•1.llivedinthehouse,______wasdestroyed(破坏)yesterday.•A,whereB,atthewhere•C,whichD.that•.2.Ourclasshas67students,_______arePartymembers.•A.themB.who•C.whomD.whichCB•3.Thegirlyouwanttoseeistheone____livesnexttome.•A.sheB.who•C.whomD.which•4.Those______themagazinesoutofthereadingroompleasegavebirthtoababy.A.whohastakenB.thattook•C.whohavetakenCD•5.Ourmonitoristheone_______youcanturntoforhelp.•AwhomB.whoCwhichDthat•6.Mr.Brownwasthefirstone_____cameintotheroomin_____weheldthemeeting.•Athat,thatBwhich,which•Cwhich,thatDthat,which•7.He,______isoneoftheboys,knowsthelanguage.•A.whoB.thatC.whomD.whichAAD•8.Marywillneverforgetthesedays_____shelivedinChinawithhermother,_____hasagreateffectonherlife.•A.that;whichB.when;that•C.which;thatD.when;which••9.Liminggotthefirstplace,___________madehisparentshappy.•A.soB.whichC.asD.thisBD10.Somepre-schoolchildrengotoadaycarecenter,______theylearnsimplegamesandsongs.A.thenB.thereC.whileD.where11.Somepre-schoolchildrengotoadaycarecenter,______ishelpfulforthemtolearnsimplegamesandsongs.A.thenB.thereC.whereD.whichDD•Jointhetwosentencesintoone,usingwho,thatorwhich.1.Thefishwerenotfresh.Weboughtthefishyesterday.2.TheforeignerisfromCanada.Hevisitedourschoolyesterday.3.TheboyiscalledMichael.Hebrokethewindow.Thefish(which)weboughtyesterdaywerenotfresh.TheforeignerwhovisitedourschoolyesterdayisfromCanada.TheboywhobrokethewindowiscalledMichael.Goodbye!