1.who指人,在从句中做主语
(1)TheboyswhoareplayingfootballarefromClassOne.
(2)YesterdayIhelpedanoldmanwholosthisway.
2.whom指人,在定语从句中充当宾语,常可省略.
(1)Mr.Liuistheperson(whom)youtalkedaboutonthebus.
(2)Mr.LingisjusttheboywhomIwanttosee.
注意:关系代词whom在口语和非正式语体中常用who代替,可省略.
如果在从句中做宾语,就用whom或who.比如:Heisthemanwhom/whoItalkto.
如果是在从句中作主语就只能用who.比如:HeisthemanwhohasanEnglishbook.
(3)Themanwho/whomyoumetjustnowismyfriend
3.which指物,在定语从句中做主语或者宾语,做宾语时可省略
(1)Footballisagamewhichislikedbymostboys.
(2)Thisisthepen(which)heboughtyesterday.
4.that指人时,相当于who或者whom;指物时,相当于which.
在定语从句中做主语或者宾语,做宾语时可省略.
(5)Thenumberofthepeoplethat/whocometovisitthecityeachyearrisesonemillion.
(6)Whereisthemanthat/whomIsawthismorning?
5.whose通常指人,也可指物,在定语从句中做定语
(1)Hehasafriendwhosefatherisadoctor.
(2)Ioncelivedinahousewhoseroofhasfallenin.whose指物时,常用以下结构来代替
(3)Theclassroomwhosedoorisbrokenwillsoonberepaired.
(4)Theclassroomthedoorofwhichisbrokenwillsoonberepaired.
(5)Doyoulikethebookwhosecolorisyellow?
(6)Doyoulikethebookthecolorofwhichisyellow?
1.when指时间,在定语从句中做时间状语
(1)IstillrememberthedaywhenIfirstcametotheschool.
(2)Thetimewhenwegottogetherfinallycame.
2.where指地点,在定语从句中做地点状语
(1)ShanghaiisthecitywhereIwasborn.
(2)ThehousewhereIlivedtenyearsagohasbeenpulleddown.
3.why指原因,在定语从句中做原因状语
(1)Pleasetellmethereasonwhyyoumissedtheplane.
(2)Idon’tknowthereasonwhyhelooksunhappytoday.
注意:关系副词引导的从句可以由“介词+关系代词”引导的从句替换
(1)Thereasonwhy/forwhichherefusedtheinvitationisnotclear,
(2)Fromtheyearwhen/inwhichhewasgoingtoschoolhebegantoknowwhathewantedwhenhegrewup.
(3)Greatchangeshavetakenplaceinthecityinwhich./whereIwasborn.