高中英语定语从句详解.doc

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1、高中英语定语从句详解Ⅰ.概念：(1)定语从句：在主从复合句中用作定语的从句叫定语从句。定语从句一般紧接在先行词(antecedent)后面。(2)先行词：被定语从句修饰的成份。先行词可以为一个词，短语，或整个主句。(3)引导定语从句的词叫关系词，分为关系代词和关系副词。关系词的作用：1)引导定语从句，连接主句和从句，相当于一个连词；2)必在从句中作某个句子成份（可以做主语，宾语，表语，定语，状语）3)常用的关系代词:that、which、who、whom、whose、as、4)常用的关系副词（在从句中只作状语）:w

2、hen、why、whereThestudentwhoansweredthequestionwasJohn.Iknowthereasonwhyhewassoangry.Theboy(whom)youaretalkingtoismybrother.I'dlikearoomwhosewindowlooksoutoverthesea.定语从句三步：第一找出先行词；第二看先行词在定语从句中的语法功能（做主语、宾语或状语）；第三选择合适的关系词。Ⅱ.几个关系代词的基本用法：●that:可指人或物；在定语从句中作主语，宾语，表语

3、。(指人时，相当于who或whom；指物时，相当于which)(一般不用于非限制性定语从句;不可置于介词后作宾语)如：1.Aletterthat/whichiswritteninpencilisdifficulttoread.(主语)2.Doyouknowthegentlemanthat/whospokejustnow?3.Youcantakeanything(that)youlike.（宾语）4.Whatisthequestion(that/which)theyaretalkingabout?5.Hereisth

4、eman(who/whom/that)youwanttosee.6.She'snolongerthegirl(that)sheusedtobebefore.（表语）7.Ourhometownisnolongertheone(that)itusedtobe.=Ourhometownisnotthesameasitusedtobe.=Ourhometownisdifferentfromwhatitusedtobe。=Ourhometownisnotwhatitusedtobe.8.●which:指物；在定语从句中作主语

5、，宾语，表语，定语。如：1.Thebookwhich/thatwasonthedeskwasboughtbymyfather.（主语）2.Thebook(which/that)Iboughtyesterdayisveryinteresting.（宾语）3.Thefactoryinwhichhisfatherworksisfarfromhere.4.Hewasproud,whichhisbrotherneverwas.（表语）5.Tomspentfouryearsincollege,duringwhichtimehe

6、learnedFrench.（定语）6.Hemaybelate,inwhichcaseweoughttowaitforhim.●who,whom,whose:who:主格,在从句中作主语，在口语或非正式用法中作宾语;只可指人whom:宾格，在从句中作宾语;只可指人whose:属格，在从句中作定语，可指人也可指物。Ilikethestudentswho/thatworkhard.（主语）Allwhoheardthestorywereamazed.(代词如he,they,any,those,all,one等后多用who

7、.)Chaplin,forwhomlifehadoncebeenveryhard,wasasuccessasanactor.（宾语）He'samanfromwhomweshouldlearn.=He'saman(whom/who/that)weshouldlearnfrom.比较：Heisthestudentwhomyouthinktobeworthyofyourpraise.Heisthestudentwhoyouthinkisworthpraising.Achildwhoseparentsaredeadisca

8、lledanorphan.（指人）I'dlikearoomwhosewindowfacessouth.（指物）=I'dlikearoomofwhichthewindowfacessouth.=I'dlikearoomthewindowofwhichfacessouth.ThereisateapotshapedlikeaChineseduck,outofwho