定语从句所修饰的词叫先行词

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1、定语从句所修饰的词叫先行词。定语从句放在先行词后面。定语从句分为限定性定语从句和非限定性定语从句。本章只介绍限定性定语从句。引导定语从句的词有关系代词that、which、who、which、whose和关系副词where、when，关系代词和关系副词是引导词，在定语从句中担当某一成份。关系代词和关系副词的作用：先行词指物时，关系代词用that或which（在句中作主语或宾语）。如：Chinaisacountrywhich/thathasalargepopulation.Thecomputergamewhich/thatheisplayingishisfavori

2、te.先行词指人时，关系代词用（who）作主语或宾语，whom(作宾语)，whose(作定语)，that(作主语或宾语)。如：Themanwhoismendingthemachinehasbeenretired.Thisisthepolicemanwho/whomtheyweretalkingaboutyesterday.Ilikethegirlwhosemotherisanactor.注意：下列情况下关系代词只用that而不用which或who。先行词是指物的不代词，如：all,little,few,much,none,anything,nothing,ever

3、ything等时。如：Ididn'tunderstandthewordsallthathesaid.2．先行词由最高级、序数词以及any,very,only,all,no,just等所修饰。如：ThisisthemostbeautifulplacethatIhavebeento.行词既包括人，也包括物。如：Theyalwaysliketotalkaboutthemanandthethingsthattheyseeontheroad.当主句是以which或who开头的特殊疑问句时。如：whoisthemanthatopenedupthelab.例题解析：举一反三，学

4、的更轻松！Heisafriend______canhelpyouintimeofneed.A.whoheB.whoseC./D.who解析：引导词在定语从句中做主语，指人。应选D。Themostimportantthing______weshouldpayattentiontoisthefirstthing______Ihavesaid.A.which,thatB.that,whichC.which,whichD.that,that解析：先行词前有序数词，最高级时，引导次只能用that.应选D.Thisistheonlyoneofthesebooksthat___

5、___worthreading.A．hasB.haveC.isD.are解析：引导词that在句中作主语，代指one，应选C。Theman______talkedtoyoujustnowismyfather.A.whoB.heC.whichD.whose解析：引导词在句中作主语指人，应选A.Theythoughttoomuchabout______.A.whichIhadsaidB.whatIhadsaidC.thatIhadsaidD.Ihadsaid解析：此题引导词作在从句中作宾语，表示说话的内容，应选B。一、选择最佳答案填空：1．Didyoufindthen

6、otebook______Jimhadgivenmeformybirthday?A.whoB.whomC.whichD.whose2.That'sall______Ihaveseenandheard.A.whichB.thatC.whereD.what3.Haveyouseentheman______planweweretalkingabout______yesterday?A.who,themB.its,themC.whose,/D.whose,them4.TheOscarisoneofthefilmprizes______offeredtoanyChinese

7、actororactresssofar.A.whicharenotB.thathavenotbeenC.thathasnotD.thathasnotbeen5.Heneverreadsanything______isnotworthreading.A.thatB.asC.whoD.which6.Theman________coatisblackiswaitingatthegate.A.who'sB.whoseC.thatD.ofwhich7._________cleanstheclassroomcangohomefirst.A.AnyoneB.thosewhooC

8、.Howe