英语：Unit1《Cultural relics》课件-grammar(新人教版必修2).ppt

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1、定语从句解题步骤：第一,找出先行词；第二,看先行词在子句中的成分(做主语、宾语还是状语?）第三,选择合适的关系词ks5u精品课件一、定语从句的定义：用来修饰名词或代词的从句叫定语从句。被定语从句所修饰的名词或代词叫先行词（antecedent）。定语从句一般是由关系代词或关系副词来引导的。相当于名词和形容词的作用。eg:1.DoyouknowthemanwhocametoseeXiaoYangthismorning?2.ThedayisnotfaroffwhenwewillmakeatriptoBritain.定语从句归纳总结ks5u精品课件二、关系代词和关系副词的作用：1、引导作用2

2、、替代作用3、在定语从句中担当某个成分的作用eg:1.Thosewhowanttogopleasesignyournameshere.2.Thisisthehousewherehewasborn.3.Bill,whowashereyesterday,askedmealotofquestions.ks5u精品课件三、关系代词（who,whom,which,that,whose）的指代关系指人指物在定语从句中的作用WhoWhomWhichthatwhose√√√√√√√主语宾语宾语主语宾语主语宾语定语ks5u精品课件Eg:1.Heissuchamanwhonevertellsalie.2.

3、Heisthemodelworkerwhom/whoweshouldlearnfrom.3.Adictionaryisabookwhichoftenhelpsustoknowthemeaningsofthewords.4.ThisisthefilmwhichIlikebest.5.Theboywhosefatherisaprofessorisoneofmybestfriends.6.Thehousewhoseroofwasblownawaybythestormwillberebuiltsoon.ks5u精品课件四、关系代词which和that的区别：A.关系代词必须用that的情形：1

4、、当先行词被形容词的最高级所修饰ThisisthebestfilmthatIhaveeverseen.2、当先行词被序数词修饰ThefirstcarthatarrivedatthedestinationwasdrivenbyJohn.3、当先行词被theonly,thevery等修饰ThisistheonlyticketthatIgotyesterday.ThisistheverybookthatI’mlookingfor.ks5u精品课件4、当先行词为不定代词时或被不定代词修饰时IsthereanythingthatIcandoforyou?Allthatyouhavetodoist

5、opressthebutton.Thereisnotimethatwecanwaste.5、当先行词既指人又指物时Thecaranditsdriverthatknockeddowntheoldladyhavebeentakentothepolicestation.B.指物时，作介词的宾语，关系代词只能用whichThisisthequestionaboutwhichwe’vehadsomuchdiscussion.ks5u精品课件五、关系副词when,where,why的用法关系副词都等于一个适当的介词＋which，在从句中作状语When=in/at/on/…+which;Where=

6、in/at/on/…+which;Why=for/…+which1.Doyoustillrememberthedaywhen(onwhich)wewenttovisitthemuseumtogether?2.Thisisthefactorywhere(inwhich)myfatheronceworked.3.Thisisthereasonwhy(forwhich)hewaslate.ks5u精品课件六、as引导定语从句，多与such和thesame连用，在从句中作主语或宾语。1.Suchpeopleasyoudescribearerarenowadays.2.Let’sdiscusso

7、nlysuchquestionsasconcerneveryoneofus.3.Wouldyoupleasebuymethesamenovelasyouboughtforbrotheryesterday,Mum?4.Asweallknow,Johnisanhonestman.比较：SheworethesamedressthatsheworeatMarry’swedding.ks5u精品课件七、注意事项：1、关系代词和关系副词在定从中的不同成分a