unit5关系副词引导定语从句

关系副词引导定语从句when,where,why的三个作用？1.代替？2.做成分？3.连接？when:先行词常是表时间的名词Ican'tforgetthenightwhenIcametothefarm.ThedaywhenNelsonMandelahelpedmewasoneofmyhappiestdays.Doyourememberthedays___wespenttogetheronthefarm?这个空填when还是which/that?为什么？where:先行词常是表地点的名词Thefactorywherehisfatherworksisinthewestofthecity.TheschoolwhereIstudiedforonly2yearswas3kilometresaway.Thisisthefactory____heusedtowork.Thisisthefactory____Ivisitedlastyear.填where还是which/that?为什么？Why:先行词通常是reasonIdon'tknowthereasonwhyhedidn'tcometoschoolyesterday.关系代词作介词的宾语时，可以将定语从句中的介词提到关系代词前，形成“介词+关系代词”机构ThisitthebookwhichTomoftentalksabout.介词+关系代词引导定语从句关系代词：只能用which/whom介词如何选择？Thisisthebook___whichIspent5yuan.Thisisthebook___whichIpaid5yuan.Iremembertheday___whichIjoinedtheparty.thedays____whichIlivedthere.themonth____whichIstayedthere.介词根据句子意义而确定：Thisisthepilotwithwhommyyoungerbrotherhasworkedfortenyears.Theperson______Ilivedwasagoodfriendofmine.和我住在一起的人是我的一个好朋友。Thehouse______Iwasstayingwasfarawayfrommywork.我正居住的房子离我工作的地方很远。Thecompany______Iworkedwasfounded5yearsago.我为之工作的公司是在5年前建立的。Theaddress______allmylettersweresentwasinSouthAfrican.我所有的信被寄往的地址是在南非。when/where/why与“介词+关系代词”的替换1.when相当于at/in/during/on等+whichThedateonwhichhejoinedthepartywasjuly1,1984.句中onwhich=when2.where相当于in/at/on等+whichThehouseinwhichhelivedisnowalibrary句中inwhich=where3.why=forwhichIsthatthereasonforwhichhewasabsentfromclass?Wherethereisawill,thereisaway.Wherethereislife,thereishope.