PeriodThreeGrammar&Writing作定语的从句叫定语从句。定语从句通常置于它所修饰的名词(或代词)之后，这种名词(或代词)被称为先行词。引导定语从句的关联词被称为关系代词或关系副词。一、关系代词的用法关系代词及其在从句中所作的成分关系代词指代在定语从句中充当的成分人物句子主语宾语表语定语who√√√whom√√that√√√√√which√√√√√whose√√√as√√√√√√Ishethemanwho/thatwantstoseeyou?他就是想见你的人吗？Heistheman(whom/that)Isawyesterday.他就是我昨天看见的那个人。Canyoushowmethephotowhich/thatwastakenintheWestLake?你能让我看看在西湖拍的照片吗？I’llneverforgettheday(which/that)wespenttogether.我永远不会忘记我们在一起度过的日子。即时跟踪1用适当的关系代词填空(1)Shelivesinahousewhosewindowsallfacesouth.(2)Jackwhoisalwaysreadytohelpothersisaverykindheartedman.(3)Heisthemanwho/whomIgottoknowatthemeetingyesterday.(4)Thetrainwhich/thathasjustleftisforNanning.(5)ThiswasthesamesituationasIimagined.二、关系副词的用法关系副词指代先行词在定语从句中充当的成分when时间时间名词时间状语where地点地点名词地点状语why原因reason原因状语We’llneverforgetthedaywhenthePeople’sRepublicofChinawasfounded.我们决不会忘记中华人民共和国成立的那一天。Theofficewhereheworksisonthesecondfloor.他工作的办公室在二楼。Thereasonwhyhedidn’tcomewasunknown.他没来的原因还不清楚。即时跟踪2用适当的关系副词填空(1)IstillrememberthedaywhenIbecameacollegestudent.(2)Thatisthereasonwhyheisleavingsosoon.(3)IforgotthehousewheretheSmithslived.三、关系代词用that不用which的情况1.当先行词是不定代词时，如all，everything，anything，nothing，much，few，little，none等。Allthathehasdoneisoflittlehelp.他所做的没有一点儿帮助。2.当先行词前面有theonly，thelast，thenext，few，no，all，thevery等修饰词时。ThisistheverymanthatIwanttosee.这正是我想见的那个人。3.当先行词为序数词/形容词最高级或被序数词/形容词最高级修饰时。Thisisthefirstletterthathehaswrittentome.这是他给我写的第一封信。4.当先行词既有人又有物时。Weweredeeplymovedbythemanandhisstorythatshetoldus.她告诉我们的那个人和他的故事深深地打动了我们。5.当主句是以who，which或what开头的特殊疑问句时。Whoisthemanthatiswaitingattheschoolgate?在学校门口等着的那个人是谁？即时跟踪3用关系代词that或which填空(1)Hedidallthathecouldtohelpus.(2)ThisistheverybusthatI’mwaitingfor.(3)ThisisthemostinterestingnovelthatI’veeverseen.(4)WhatisthefirstAmericanfilmthatyouhaveseen?(5)Canyourememberthescientistandhistheorythatwelearnttheotherday?四、“介词＋关系代词”引导的定语从句1.关系代词的选定如果先行词指事(物)，关系代词就用which，指人用whom。Thisistheclassroominwhichwestudiedlastyear.这就是我们去年学习用的教室。Hewasouruncleofwhomwewereafraid.他就是我们都害怕的叔叔。2.介词的选定(1)根据先行词来选用介词。ThereasonforwhichIcamehereisthatIwanttogetyourhelp.我来这儿的原因是我想得到你的帮助。ThefarmonwhichIonceworkedhastakenonanewlook.我曾经工作过的农场呈现出一派新景象。(2)根据定语从句中的谓语动词或形容词来选用介词。ThepersontowhomIspokejustnowismyEnglishteacher.我刚才与之讲话的那个人是我的英语老师。Chinaofwhichwearegreatlyproudisabeautifulcountry.我们为之感到非常骄傲的中国是个美丽的国家。(3)根据句意确定介词。ThisisthepilotforwhomIboughtacamera.这个就是我给他买照相机的飞行员。即时跟踪4(1)用适当的介词填空①Inthedarkstreet，therewasn’tasinglepersontowhomshecouldturnforhelp.②Thepoormanhasnohouseinwhichhecanlive.③Hebuiltatelescopethroughwhichhecouldstudytheskies.④Ididn’tknowthereasonforwhichhecamelate.⑤Isthisthecarfo...
