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TheAttributiveClauseⅢnon-restrictiveattributiveclause非限定性定语从句定语从句通常由关系代词(）或关系副词（）引导“介词＋关系代词”引导定语从句如果先行词是人，则由“__________”引导如果是物，则由“_____________”引导先行词是way时，后面定语从句可以用先行词是reason时，用介词＋whom介词+whichinwhich=that=()why=forwhichwhich,that,who,whomwhere,why,whenWhoisshe?Cecilia,______tookweight-losspills,nowrealizesthathealthisimportant.Cecilia,_______bodyisthin,stillwantstolosesomeweight（减肥）.whowhose•Hemissedtheshow,whichwasagreatpity.•Shewasawardedagoldmedal,whichthewholefamilyconsideredagreathonor.•Shewasverypatienttowardsthechildren,whichherhusbandseldomwas.限制性定语从句与先行词之间不用逗号隔开；非限制性定语从句与先行词之间一般用逗号隔开。Mycousinwhosefatherisateacherwantstobeanactor.Mycousin,whosefatherisateacher,wantstobeanactor.关系词•①引导非限定性定语从句的关系代词：→•②引导非限定性定语从句的关系副词主要有：when,where指代对象指代人指代物主格whowhich,as宾格Whomwhich,as所有格Ofwhom,whoseofwhich,whose1.A.ThisistheplacewhereIlivedtenyearsago.B.SheisgoingtospendthewinterholidayinMacao,whichreturnedtoChinain1999.2.A.HeisamanwhoIcanaskforhelp.B.Hisfather,whoworksinBeijing,camebackyesterday限制性定语从句和先行词关系密切，如果去掉从句，剩余部分意义不完整；非限制性定语从句只是先行词的附加说明，如果去掉从句，意义仍然完整。Hemissedtheshow,whichwasagreatpity.Heinvitedmetodinner,whichmademehappy.非限制性定语从句中关系代词which/as可指整个主句的意思或一部分意思。As引导的定语从句既可以位于句末，也可以位于句首或句中。Aseveryoneknows,Chinaisacountrywithalonghistory.正如大家所知，中国是一个有着悠久历史的国家。Sheisateacher,asisclearfromhermanner.她是位教师，这一点从她的举止可以清楚地看出。Moreexamples在ofwhich/whom之前可以使用表达数量或定位的数词或代词。1.Iamdoingdifferenttypesofexercises,allofwhicharequitehelpfultomyhealth.2.Manypeople,someofwhomarenotoverweight,aregoingondiets.3.Thereare54studentsinmyclass,threeofwhomcomefromUS.Otherexamples限制性定语从句与非限制性定语从句:限制性定语从句非限制性定语从句和先行词关系密切(删去影响整个意思表达)和先行词关系不密切(一种补充说明，删去不影响全句意思的表达)不用逗号隔开一般用逗号隔开可用关系代词that不可用关系代词that关系代词可省略(但在从句中作宾语)关系代词不可以省略限制性定语从句非限制性定语从句只可修饰先行词，不可以修饰主句或主句的一部分除修饰先行词还可以修饰整个主句或主句的一部分翻译时先翻译从句在翻译主句翻译时先译主句再译从句TheboyisTom.Theboyisquitefat.TheboyisTom.Theboyhasaroundface.TheboywhoisquitefatisTom.(主语)TheboywhohasaroundfaceisTom.TheboyisTom.Hesitsinfrontofme.TheboywhositsinfrontofmeisTom.Fillintheblankswithproperrelativewords.1.Thefamousbasketballstar,_____isanAmerican,cametoChinayesterday.2.Inthosedays,sheusedtogotoMrblack,with_____shehadawonderfultime.3.Iboughtacaryesterday,_____costmealot.whowhomwhich1、找出两个句子中的重复部分或指代与被指代部分2、选定一个句子作主句（通常是告诉读者较重要信息的句子）3、把另一个句子中重复的词或代词换成关系词（根据指人还是指物、在句中作什么成分等来确定把两个句子合并成包含定语从句的句子的方法：Themaniskind.Everyonelikeshim.Theman(who)everyonelikesiskind.(宾语)Thewomangotthejob.Wesawheronthestreet.Thewoman(whom)wesawonthestreetgotthejob.Theteacherwillgiveusatalk.Wemettheteacheryesterday.Theteacher(whom)wemetyesterdaywillgiveusatalk.Theboyisinthelab.Youwanttotalktohim.Theboy(whom)youwanttotalktoisinthelab.Theboytowhomyouwanttotalkisinthelab.Thisistheboy.Isitbehindhim.Thisistheboy(whom)Isitbehind.ThisistheboybehindwhomIsit.Differences•1.限定性定语从句:引导词有时可以省略。•非限定性定语从句:引导词不可以省略。•2.限定性定语从句:先行词可以用that引导。•非限定性定语从句:先行词不可以用that引导。•3.限定性定语从句:从句不能省略,如果省略整个句子意思不完整。•非限定性定语从句:从句可以省略,如果省略整个句子意思仍然完整。4.限定性定语从句:主句与从句不需要用逗号隔开。•非限定性定语从句:主句与从句需要用逗号隔开。••