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Godhelpsthosewhohelpthemselves.天助自助者。Allthatglittersisnotgold.发光的未必都是金子。Hewhodoesn'treachtheGreatWallisnotatrueman.不到长城非好汉。Grammar1.Thisisthebesthotelinthecity_______Iknow.2.YourteacherofChineseisayounglady__________comesfromBeijing.3.Isthereanythingelse_______youwant?4.What’sthenameoftheman______caryouborrowed?that/×who/thatthat/×whose5.Alltheapples____fallareeatenbybear.6.Canyouthinkofanyone_________couldlookafterhim?7.Isthatthehouse_________youboughtlastyear?8.Heshowedamachine______partsaretoosmalltobeseen.thatwho/thatwhich/×whose1.引导定语从句的关系副词有：when/where/why.2.关系副词引导定语从句的作用:（1）在从句中代替表示时间，地点和原因的先行词。（2）在从句中作状语成分，表示时间，地点和原因。when引导的定语从句修饰表示时间的名词,在定语从句中作时间状语,相当于“介词+关系代词(which)”。1.when的用法：Thetime_____IfirstmetNelsonMandelawasaverydifficultperiodofmylife.whenI’llneverforgettheday_______Ifirstwenttoschool.when__________________________________hedancedtotheLittleAppleeveryday.Therewasatimewhen曾经有一段时间他天天跳小苹果。(there)2.where的用法：引导的定语从句修饰表示地点的名词,在定语从句中作地点状语,相当于“介词+关系代词(which)”。Thisisthehouse_______________________________这是我出生的房子。(born)Wevisitedthehouse_______________________________我们参观了鲁迅故居。(live)where/inwhichIwasborn.where/inwhichLusunoncelived.IstudyatDongfengHighSchool,________________________________nearby.我在大东高上学，那儿附近有很多挖掘机。(there)excavators挖掘机wheretherearemanyexcavatorsChinaistheonlycoutry_____________________________.中国是唯一一个发现野生大熊猫的国家。(find)wherewildpandascanbefound3.why的用法：引导的定语从句表示原因(先行词一般是reason),在定语从句中作原因状语,相当于“forwhich”。Idon'tknowthereason__________________________________________我不知道她为什么如此迷恋都教授。(crazy)why/forwhichsheissocrazyaboutPro.Du.Heistheman___whomyoucanbelieve.1.看定语从句中动词与介词的搭配in2.看定语从句中形容词与介词的搭配Hegavemesomebooks_____whichIamnotveryfamiliar.with3.根据先行词判断，所用的介词与先行词搭配Thisisourclassroom,_____________whichthereisateacher’sdesk.inthefrontoflistento,lookat,dependon,payattentionto,takecareof等固定短语动词,在定语从句中一般不宜将介词与动词分开。Thisistheboywhomshehastakencareof.•关系副词vs关系代词并非表示时间、地点、原因的名词后的定语从句都用关系副词引导，如果这些词在定语从句中作主语或宾语，就应该用关系代词which或that。Lookatthesentencesandthinkaboutwhytheyusedifferentrelativepronouns.1.I’llneverforgetthedays_____________weworked(vi.)together.2.I’llneverforgetthedays_____wespent(vt.)together.3.Iwenttothecompany_______________Iworked(vi.)tenyearsago.when/inwhichwhichwhere/inwhich4.Iwenttothecompany______Ivisited(vt.)tenyearsago.5.Thisisthereason______________hewaslate.6.Thisisthereason__________hegave.(vt.)whichwhy/forwhichthat/which几种易混的情况判断方法方法一：判断从句中的谓语动词。若是及物动词后面缺宾语，就用关系代词；若是不及物动词，就用关系副词。方法二：准确判断先行词在定语从句中作什么成分，若作主语、宾语、表语，就用关系代词；若作状语，就用关系副词。Specialexamples1.先行词是theway而且在定语从句中作方式状语时，关系词要用that,inwhich或省略。Iliketheway______________________.我喜欢周杰伦唱歌的方式。(that/inwhich)Jaysings2.先行词是抽象地点或抽象时间名词如occasion,case,condition,situation,stage,point,position等，在定语从句中作时间或地点状语时，要用when,where或“介词+which”来引导。Haveyouhadtheoccasions_____________________________buthisnameescapedyou?你有没有过遇到一个朋友但一时想不起他名字的时候？(meet)when/onwhichyoumetafriendⅣ定语从句必须注意的两个句型1.A.Isthisthefactory__youvisitedlastyear?B.Isthisfactory____youvisitedlastyear?a.thatb.wherec.inwhichd.theoneadda备考方略【巧学妙记】定语从句的用法