1定语从句定语从句的构成：两个简单句：Amanisstandingthere.Themanismybrother.=主从复合句：Themanwhoisstandingthereismybrother.先行词：行，走路的意思。先行词就是放在从句前面的词，但是本身为定语从句中的一部分。所以先行词在从句中作什么成分从句中就用什么样的引导词。关系词：代替先行词承担从句中的句子成分，放在句首引导从句，所以也叫引导词。（1.关系代词：在从句里代替先行词充当、、关系词的种类：I2•关系副词：在从句里代替先行词充当关系词的作用：①代替前面的先行词在从句中充当一定的成分②把两个句子连起来一、关系代词：先行词人物人+物主语who/thatwhich/thatthat宾语who/whom/thatwhich/thatthat定语whosewhose/ofwhich表语that注意：（1）、当先行词在从句中作宾语的时候可以省略引导词把下列两个简单句合成一个主从复合句1.Hewantstoseetheman.+ThemanisinShanghai.①②2.Ihaveasister.+SheworksinHebei.①②3.Thisistheman.Thepolicearelookingfortheman.①2②4.Doyouknowthegirl?+Hermotherworkshere.①②5.Iliveinaroom.+Itsdoorfacessouth.①②⑵先行词做宾语时who与whom的区别一般情况下不进行区分，除非是紧跟在介词之后1.Thisistheman.Thepolicearelookingforhim.fThisistheman(who/whom/that)thepolicearelookingfor.【who/whom/that可以省略】其中介词for可以提前fThisisthemanforwhomthepolicearelooking.介词在引导词前面只能用whom,而且不能省略，因为介词之后只能接宾格注：that不能放在介词之后2.Johnisthedriver.Wetalkedabouthim.fJohnisthedriverwetalkedabout.fJohnisthedriveraboutwetalked.二、关系副词：先行词物地点状语where时间状语when原因状语why/forwhich把下列两个简单句合成一个主从复合句Thisisthehouse.+Iwasborninthehouse.对比：Thisisthehouse.Thehousewasbuilt10yearsago.总结：Wewillneverforgettheday.+WewillholdtheOlympicGamesontheday.3对比：Iwillneverforgettheday.Ispentthedaywithyoulastyear.总结：Idon'tknowthereason.+Helefthereforthereason.Idon'tknowthereason.Hehastoldothersthereason.总结：介词加which可以等于when、where或whyThiswasaterriblewar.+Manypeoplewerekilledinthewar.f①Thiswasaterriblewar.+Manypeoplewerekilledin.―②f③Itisthelargestfarminmyhometown.Amonumentstandsonthefarm.f①Itisthelargestfarminmyhometown.Amonumentstandson.f②f③Thepolicesoonarrivedatthescene（现场）.Therewasamanlyingatthescene.f①Thepolicesoonarrivedatthescene（现场）.Therewasamanlyingat.f②f③4A.ofB.toC.at2.Inthedarkstreet,therewasn'tanypersonshecouldturn.A.tothatB.whoC.fromwhom3.LeiFengisapersonallpeopleshouldlearn.A.tothatB.whoC.fromwhom总结：看动词的固定搭配。先行词是人，在定语从句中作宾语时who与whom的区别：D.iD.towhomD.towhom总结：where=介词+which，介词是由所决定的。Februaryisamonth.Thereareusually28daysinamonth.f①Februaryisamonth.Thereareusually28daysin.7f③EveryChineseknowsOctober1st.NewChinawasfoundedonOctober1st.f①EveryChineseknowsOctober1st.NewChinawasfoundedon.f②f③Iwanttoknowthetime.Thebusleavesatthetime.f①Iwanttoknowthetime.Thebusleavesat.f②f③总结：when=介词+which，介词是由所决定的。Noonecanguessthereason.Hedisappearedforthereason.f①Noonecanguessthereason.Hedisappearedfor.f②f③总结：why=forwhich，因为只有介词for表示原因.另一种引导词加介词的情况：1._______________________Thisistheherowhomweareproud.who是主格，可以做主语，但是现在语法要求不那么严格了，先行词是人在从句中作主语作宾语都可以用who来代替whom是宾格，先行词做宾语的时候可以用whom来代替但是介词之后只能接宾格的形式，所以如果引导词前有介词的话，必须得用whom的形式•而且当引导词前面有介词的时候是不能省略引导词的。1.Youwanttheapprovalofthosewithyoucomeincontact.(who/whom/that)2.Youwanttheapp...
