初中英语定语从句专题关系代词有:who,whom,whose,that,which关系副词有:when,where,why一.关系代词引导的定语从句(注意:关系代词在从句中作主语时不可省略,作宾语可省略。但是“介词+which/whom”不可省,分开则可省。)1)先行词是人:who∕whom∕that(区分:who可做主语和宾语,whom只能做宾语)YesterdayIhelpedanoldmanwho/thatlosthisway.(主语)MrWangistheman(who/that/whom)youmetinthezoothismorning.(宾语)MrZhangisthemanforwhomIamlooking.=MrZhangistheman(who/whom/that)Iamlookingfor.2)先行词是物:which∕thatFootballisagamewhich/thatislikedbymostboys.(主语)Idon’tbelievethenewswhich/thatTomwonthegame.(宾语)3)whose用来指人或物(,若指物,它还可以同ofwhich互换)。Theboywhosemotherisillisstayingathometolookafterhertoday.Ihaveastorybookwhosecoverisred.二.关系副词引导的定语从句when,where,why﹦“介词+which”1)when=on/in/atwhichThatistheplaceinwhichIlivedforfiveyears.=Thatistheplacewhich/thatIlivedinforfiveyears.2)where=in/onwhicha.先行词是地点时,如果该先行词做了定语从句的主语或宾语时,关系代词用that或which.如:Theschoolthat/whichIusedtostudyinisbecomingbetterandbetter.(theschool作了介词in的宾语。)b.先行词是地点时,如果该先行词不作定语从句的主语或宾语时,关系代词用where.如:Theplacewheretheaccidenthappenedisn’tfarfromourschool.3)why=forwhichIsthisthereasonwhy(=forwhich)herefusedourhelp?三、that的用法1.只用that,不用which的情况。(1)前有序数词修饰时。如:ThisisthetenthgiftthatIreceivedformybirthday.(2)前有形容词最高级修饰时。如:ThatisthemostexcitinggamethatIhaveeverwatched.(3)先行词是all,little,few,something,anything,everything等不定代词时。如:Allthathetoldmeistrue.(4)先行词被theonly/very/same修饰时。如:TheonlythingthatIcangetisapen.(5)先行词既指人,又指物时。如:Wetalkedaboutthepeopleandthethingsthatwewereinterestedin.(6)Therebe…结构:Therearetwobooksonhistorythatareforyou.2.只用which,不用that的情况。(1)定语从句是物时,定语从句由“介词+关系代词which”如Thethingaboutwhichtheteacheristalkingisveryimportant.(2)先行词本身是that,those时,如:What’sthatwhichisflyinginthesky?3.用who/whom不用that的情况(1)先行词是one,ones或anyone时;或先行词为those或被those修饰时,只用who例句:Thosewhorespectothersareusuallyrespectedbyothers.(2)在非限定性定语从句中,只能用who指人.例句:Hehasason,whohasgoneabroadforfurtherstudy.(3)再由“介词+关系代词”引导的定语从句中,只能用whom指人(4)在以therebe…的句子中,先行词为人时,Thereisagirloutsidewhowantstoseeyou.4.用that不用who/whom的情况(1)如果开头的疑问代词是who,为了避免重复,如:Whoistheherothatsavedallofus?(2)当先行词同时包含人和物时Thebikeanditsriderthathadrunoveranoldmanweretakentothepolicestation.用适当的关系词填空:1.Istillrememberthenight_______Ifirstcametothehouse.2.I'llneverforgettheday________wemeteachotherlastweek.3.MrBlackisgoingtoBeijinginOctober,_______isthebestseasonthere.4.Iwillneverforgetthedays_______Ispentwithyourfamily.5.I'llneverforgetthelastday______wespenttogether.6.6.Thisistheschool______Iusedtostudy.7.Doyoustillremembertheplace______wevisitedlastweek?8.Doyoustillremembertheplace_______wevisitedthepaintingexhibition?9.HaveyoueverbeentoHangzhou,_____isfamousfortheWestLake?10.HaveyoueverbeetoHangzhou,______liestheWestLake?11.TomwillgotoShanghai,______livehistwobrothers.13.Therewasatime______therewereslavesintheUSA.14.Itisthethirdtime______youhavemadethesamemistake.15.Itwasinthestreet_____ImetJohnyesterday.16.Itwasabout600yearsago____thefirstclockwithafaceandanhourhandwasmade.17.Themoment_____Isawyou,Irecognized(认出)you.18.Thisistheverynovelabout____we'vetalkedsomuch.19.Thisistheway____hedidit.20.Whoisthestudent_____waslateforschooltoday?21.Who_____knowshimwantstomakefriendswithhim?22.Whatelsewasthereinmybrother____youdidn'tlike?23.Helivesintheroom____windowfacestothesouth.24.Helivesintheroom,thewindow_____facestothesouth.25.ThisisMr.Johnfor____sonIbroughtabookyesterday.26.ThisisMr.Johnfor_____Iboughtabookyesterday.27.Thisisthehour_____theplaceisalwaysfullofwomenandchildren.28.Andthereisonepoint______I'dlikeyouradvice.29.Winteristhetimeofyear______thedaysareshortandnightsarelong.30.Ihopeyouwillfindthisvalleyabeautifulplace____youmayspendyourweekend.KEYS:1.when2.when3.which4.that/which5.that6.where7.that/which8.where9.which10.where11.where12.which13.when14.that15.that16.that17.(that)18.which19.(that/inwhich)20.that21.that22that23.whose24.ofwhich25.whose26.whom27.when28.that29.that30.where49.Ihaveboughttwoballpens,_______writeswell.A.noneofthemB.neitherofthemC.neitherofwhichD.noneofwhich50.Allthatcanbeeaten_______eatenup.A.arebeingB.hasbeenC.hadbeenD.havebeen用适当的关系词填空:2.Istillrememberthenight_______Ifirstcametothehouse.2.I'llneverforgettheday________wemeteachotherlastyear.3.MrBlackisgoingtoBeijinginOctober,_______isthebestseasonthere.4.Iwillneverforgetthedays_______Ispentwithyourfamily.7.I'llneverforgetthelastday______wespenttogether.8.Thisistheschool______Iusedtostudy.7.Doyoustillremembertheplace______wevisitedlastweek?8.Doyoustillremembertheplace_______wevisitedthepaintingexhibition?9.HaveyoueverbeentoHangzhou,_____isfamousfortheWestLake?14.Itisthethirdtime______youhavemadethesamemistake.17.Themoment_____Isawyou,Irecognized(认出)you.18.Thisistheverynovelabout____we'vetalkedsomuch.20.Whoisthestudent_____waslateforschooltoday?23.Helivesintheroom____windowfacestothesouth.24.Helivesintheroom,thewindow_____facestothesouth.25.ThisisMr.Johnfor____sonIbroughtabookyesterday.26.ThisisMr.Johnfor_____Iboughtabookyesterday.30.Ihopeyouwillfindthisvalleyabeautifulplace____youmayspendyourweekend.