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1、Unit5NelsonMandelaPeroid5GrammarTheAttributiveClauseⅡTheAttributiveClause2--RelativeAdverbs关系副词：在定语从句中，当表示时间、地点、原因的名词作先行词时，且先行词在定语从句中作状语，应用关系副词when,where,why.关系副词的用法关系副词指代先行词在从句中的成分When(=at/in/on/during等介词+which)Where(=in/at等介词+which)why(=forwhich)表时间时间状语表地点地点状语表原因原因状语关系副词-----when,where,why1.
2、when表示时间，其先行词往往是表示时间的名词（如:time,day,year,week,month,morning,evening等）,在从句中作时间状语when可换成“at/in/on/during等介词+关系代词”。e.g.Istillrememberthedaywhen(=onwhich)IfirstcametoNanjing.Myfatherwasbornintheyearwhen(=inwhich)WorldWarⅡbrokeout.2.where表示地点，其先行词往往是表示地 点的名词(如:place,room,house,hotel,school,city等)，在从
3、句当中作地点状语。when可换成“介词+关系代词”。如：Thisisthefarmwhere(=onwhich)weworkedwhenwewereyoung.Myfatherwasbornintheplacewhere(=inwhich)WorldWarⅡbrokeout.3.why表示原因，常用在先行词reason后,表示原因，在从句当中做原因状语， 相当于for+whichThereareseveralreasonswhy(=forwhich)theboysshouldbepunished.Tomcouldn’tgivetheteacherthereasonwhy(=forw
4、hich)hewaslateforschool.reason作先行词时关系词的使用I’mnotclearaboutthereasonforwhichhedidit.whyhediditthathedidit.先行词thereasonforwhichwhythat①Thehousewherehelivesneedsrepairing．②ThereasonwhyJimwashappytohelpMandelawashelpingothers.③ThedaywhenMandelatoldmewhattodoandhelpedhimwasthehappiestdayforJim.下面我们学
5、习一下关系副词whenwherewhy的用法Thehousewhichhelivesinneedsrepairing.Thehouseinwhichhelivesneedsrepairing.Thehousewherehelivesneedsrepairing．ComparinganddiscoveringThereasonwhyJimwashappytohelpMandelawashelpingothers.ThereasonforwhichJimwashappytohelpMandelawashelpingothers..ThedaywhenMandelatoldmewha
6、ttodoandhelpedhimwasthehappiestdayforJim.ThedayonwhichMandelatoldmewhattodoandhelpedhimwasthehappiestdayforJim4.关系副词的用法注意点(1)当先行词为time，表示“次数”时，应用关系词that或省略。如：Thisisthefirsttime(that)thepresidenthasvisitedthecountry.4.关系副词的用法注意点(2)当point,situation,case,position,stage,condition等词作先行词表示“情况，境地，场合”
7、等抽象意思时，其后常由where引导定语从句，where在句中作状语。如：I’vecometothepointwhereIcan’tstandhim.我已经到了无法容忍他的地步了Weareinapositionwherewemaylosealargesumofmoney.我们正处在可能损失一笔钱的境地。Canyouthinkofasituationwherethisphrasecanbeused?你能想到一种使用这个短语的情况吗？小结:关系词的选择1.找先行词2.先行
