英语定语从句省公开课一等奖全国示范课微课金奖PPT课件.pptx

WritingSentencesandReviewingGrammar定语从句定语从句结构关系代词Didyoufindthepenwhichyoulost?
句中which为关系代词，由它引导定语从句whichyoulost修饰名词thepen，which在定语从句中用作宾语，它也能够换成that，或省略。

Amanwhosellsbooksinashopiscalledabookseller.开店售书人叫做书商。
句中who为关系代词，由它引导定语从句whosellsbooksinashop修饰名词aman，who在定语从句中用作主语。1、先行词是最高级或被最高级修饰。
Thisisthemostinterestingbookthatlhaveeverread.
2、先行词是序数词或被序数词修饰。
ThesecondforeigncountrythatlexpecttovisitisGreek.
3、先行词是不定代词时，如"all、few、little、much、anything、nothing、something"
IhavenothingthatIwanttotellyou.
4.、先行词现有些人又有物时
Canyourememberthescientistandhistheorythatwehavelearned?5、先行词被“only”、“theevery”、“no”、“oneof”等修饰
Heistheonlypersonthatlwanttotalkto.

6、在以“which”、“who”、“whom”引发问句中，为防止重复，惯用"that"
Whoisthemanthatisstandingthere?WhichistheT-shirtthatfitsmemost?

7、“therebe”句型中

8、先行词在主句中作表语，或者关系代词本身作从句表语是宜用“that”关系副词（时间，地点，原因作状语）I’llneverforgetthedaywhenIfirstmetyou.
句中whenIfirstmetyou为修饰theday定语从句，关系副词when在此相当于onwhich。表示在某一天，英语习惯上用介词on，如onthatday,onFriday等，所以此处用onwhich。

Don’tforgetthetimewhentheweddingwillstart.
句中whentheweddingwillstart为修饰thetime定语从句，关系副词when在此相当于atwhich。表示在某一时刻，英语习惯上用介词at，如atthattime,atthemoment等，所以此处用atwhich。■where使用方法
关系副词where在定语从句中也是用作状语，表示地点，用以修饰表示地点先行词；在许多情况下也能够了解为“介词+which”意思

Whatisthenameofthetownwhereyoulive?
句中whereyoulive为修饰thetown定语从句，关系副词where在此相当于inwhich。表示住在某城市，英语习惯上说liveinacity，所以此处用inwhich。
■why使用方法
关系副词why在定语从句中也是用作状语，表示原因；why引导定语从句时，其先行词只有一个，那就是thereason；在许多情况下why也能够了解为forwhich。如：

Thesearethereasonswhywedoit.
句中whywedoit为修饰thereason定语从句，关系副词why在此相当于forwhich。

1.Don’ttalkaboutsuchthingsof__________youarenotsure.
A.whichB.whatC.asD.those

2.Thewolveshidthemselvesintheplaces__________couldn’tbefound.A.thatB.whereC.inwhichD.inthat
3.Thisisthewonderfulplace_____manypeoplegoforavacationeveryyear.
A.thatB.whereC.whichD.theone

4.Isthisthefactory__________heworkedtenyearsago?
A.thatB.whereC.whichD.theone5.Thereasonis__________heisunabletooperatethemachine.
Thereason_____hedidn’tattendthemeetingisunknown
A.becauseB.whyC.thatD.whether

6.I’lltellyou