1、1初三英語定語從句講解及練習題在復合句中修飾名詞和代詞的從句叫做定語從句。被定語從句修飾的名詞或代詞叫做先行詞。引導定語從句的關系代詞有whowhosewhomwhichthat。引導定語從句的關系副詞有whenwherewhy。關系代詞在定語從句中做主語，賓語，定語。關系副詞在定語從句中做狀語。一、who引導的定語從句who在從句中做主語(口語中也可做賓語)，修飾表示人的先行詞。Thisisthemanwhohelpedme.Theb

2、oywhowhomwesawyesterdayisJohn’sbrother.二、whom引導的定語從句whom在從句中作賓語修飾表示人的先行詞，口語中可以省略。Thedoct(whom)youarelookingfisintheroom.Theperson(whom)youjusttalkedtoisMr.Li.=ThepersontowhomyoujusttalkedisMr.Li.(介詞后whom不能省略)Thebabieswho

3、mthenursesarelookingafterareveryhealthy.(固定短語中的介詞一般不能拆開，仍放在動詞之后。lookflookaftertakecareofputontakeoff…)三、whose引導的定語從句whose在從句中作定語，修飾表示人或物的先行詞。DoyouknowthewomanwhosenameisMary.Passmethedictionarywhosecoverisblack.Hehasafri

4、endwhosefatherisadoct.四、that引導的定語從句，that在從句中做主語或賓語、修飾表示人或物的先行詞。作賓語時可省略不能放在介詞后面作賓語.(that指人時，相當于who或者whom；指物時，相當于which)Theletter(thatwhich)Ireceivedwasfrommyfather.Ican’tfindtheletterthatwhichcamethismning.Doyoustillrememb

5、erthedays(thatwhich)wespenttogetherThisisthemanthatwhohelpedme.Thehouse(thatwhich)weliveinisnotlarge.=Thehouseinwhichweliveisnotlarge.Thedoct(thatwhomwho)youarelookingfisintheroom.五、which引導的定語從句，which在從句中做主語，也可做賓語，或介詞的賓語

6、，修飾3ShanghaiisthecitywhereIwasbn.九、Why引導的定語從句，why做原因狀語。Iknowthereasonwhyhecamelate.(f＋which可以代替why)Thereasonwhyfwhichhewaslatewasthathewasill.十、關系代詞在從句中作主語，謂語動詞的數與先行詞保持一致。ThestudentwhoisgoodatEnglishstudieshard.Thestuden

7、tswhoaregoodatEnglishstudyhard.十一、定語從句可分為兩大類，即限制性定語從句和非限制性定語從句。①限制性定語從句是先行詞在意義上不可缺少的定語，如果去掉的話，主句的意思就不完整，意義就表述不明。這種句型一般定語從句緊接先行詞（不用逗號隔開）如：Iwastheonlypersoninmyofficewhowasinvited.②非限制性定語從句。它與主句的關系不十分密切，只是對先行詞起補充、說明的作用，

8、也就是說即便去掉定語從句，句意也不受影響。主從句之間常用逗號分開，且非限制性定語從句不能用that來引導。ThiswastheAmericanCivilWarwhichlasted4yearsbefetheNthwonintheend.一、用關系代詞（that、which、who、whom、whose）或關系副詞（when、where、why）填空。1Thisistheman_______________wantstoseeyou.2T

9、hestudent__________________answeredthequestionisZhangHua.3Theman_________________youwenttoseehascome.4Theman__________________Imetyesterdaylentmesomemoney.5Thewoman______________________yousawisourgeographyteacher.6Herei

10、sthepen________________youlostthedaybefeyesterday.7Thesebooks____________________youlentmewereveryuseful.8Aclockisamachine__________________tellspeoplethetime.9Thisistheshirt______________________Iboughtyesterday.10Thebo

11、ok___________________isonthetableismine.11Thefilm___________________theyaretalkingaboutisveryinteresting.12Iwillneverfgetthepeopletheplaces____________Ihaveevervisited.13Isthereanyone___________________familyisinBeijing1