Unit 4 Discovering useful structures定语从句 基础篇 课件 2022-2023学年人教版高中英语必修第一册

定语从句定语从句之关系代词学习目标：1.定语从句的基本概念。2.定语从句中关系代词的作用。学习重难点：1.定语从句结构的分析。2.定语从句关系代词的选择。定语从句的基本概念：Task1:定义：

。Task2:先行词：

。Task3:引导定语从句的词：

和

。Self-study用来修饰名词或代词等的从句也就是说，一个句子在另外一个句子中作定语就构成了定语从句。被定语从句修饰的名词或代词等关系代词关系副词that,which,who,whom,whose,aswhen,where,whyTherewasanearthquakethathappenedinTangshanin1976.Self-study此句的定语：

。先行词：

。引导词：

。引导词的功能：

，

，

。thathappenedinTangshanin1976.earthquake关系代词that连接替代成分主句和从句先行词主语小试牛刀定语从句的位置：

定语从句一般放在被修饰的

或

等的

。

小试牛刀

Thisisthecarwhichheboughtlastyear.

Self-study名词代词后面此句的定语：

。先行词：

。引导词：

。whichheboughtlastyear.car关系代词which合并定语从句TeamworkDoyouknowtheboy?Theboyisplayingbasketball.Doyouknowtheboywhoisplayingbasketball?课堂小练1.Ihaveafriend.Helikeslisteningtoclassicalmusic.合并2.LastweekMaryworethedress.Igaveittoher.合并3.ThegirlisfromAmerica.HerfatherisaChinese.合并合并定语从句Ihaveafriendwho/thatlikeslisteningtoclassicalmusic.LastweekMaryworethedressthat/whichIgavetoher.ThegirlwhosefatherisaChineseisfromAmerica.4.Whoistheman?Heisdrawingapictureoverthere.合并5.Mygrandparentsliveinahouse.Itismorethan100yearsold.合并课堂小练合并定语从句Whoisthemanthatisdrawingapictureoverthere?Mygrandparentsliveinahousethat/whichismorethan100yearsold.关系代词的作用ThisisthebestfilmthatIhaveseen关系代词1连接作用主句和从句2替代作用替代先行词3成分作用主宾定等(从句中)关系代词that，指代先行词

，在定语从句中作seen的

。film宾语关系代词的用法关系代词在从句中可以：指人指物主语宾语定语thatwhichwhowhomwhoseas√√√√√√√√√√√√√√√√√√√何时可以省略？一般作宾语时可以省略1.Theman

cametoourschoolisMr.Wang.2.Thegirl

ImetisLucy.3.Achild

parentsaredeadiscalledTom.4.Ilikethebook

youboughtyesterday.5.Imetanoldfriendinthestreet

wentabroadthreeyearsago.课堂小练用适当的关系代词填空who,thatwhom,who,that,/whosethat,which,/who,that6.Istillrememberthedays

wespenttogether.7.Idon’tliketheman

youjusttalkedto.8.Ihavearoom

windowfacessouth.9.Iwanttohaveagirlfriend

iskindandbeautiful.10.Ihaveagoodfriend

fatherisamanager.课堂小练用适当的关系代词填空which,that,/who,that,whom,/whosewho,thatwhosethat和which用法的区别1、只能用that不用which的情况(1)先行词为all,everything,nothing,something,anything,little,much等不定代词时。Iamsureshehassomething(that)youcanborrow.Doyouhaveanything(that)youdon’tunderstand?(2)先行词被all,every,no,some,any,little,much等修饰时。I’vereadallthebooksthatyoulendmePleasesendusanyinformationthatyouhaveaboutthesubject.(3)先行词被序数词或最高级修饰时。Thisisthefirstbook(that)hehasread.Itisthemostbeautifulcitythat

I'veeverseen.(4)先行词被theonly,thevery,thelast等修饰时。Thisistheverybookthatbelongstohim.Heistheonlypersonthatwaspresentatthetime.(5)先行词既有人又有物时。Thefamouswriterandhisworksthattheradiobroadcastarepopulartothestudents.(6)先行词是who或which引导的主句。Whoisthegirlthatdrovethecar?Whichisthebookthatyoulike?(7)主句以therebe引导时。Therearemorethan400,000peoplethatdiedorwereinjuredintheearthquake2、只用which不用that的情况(1)关系代词在限制性定语从句中紧跟介词作宾语(介词提前)。Therearemanytreesunder

whichtheycanhavearest.Thisistheringonwhich

shespent1000dollars.(2)在非限制性定语从句中。Football,whichisaverypopulargame,isplayedallovertheworld.Onewhohasnothingtofeardarestotellthetruth.Theoneswholaughatthedisabledarenot

goodstudents.Anyonewhofailstofinishthetaskshouldbepunished.ThosewhowanttogotoTheGreatWallsighuphere.先行词是one,ones,anyone,

those,he时用who.二，只用who的情况三，表所有关系及整体中的一部分或全部时用介词of,

有时可用whose转换。1)I’mpaintingahouse,theroofofwhichisround.-I’mpaintingahousewhoseroofis

round.2)Theyliveinahouse,whosewindowsfacesouth.-Theyliveinahouse,thewindows

ofwhichfacesouth.1.Thebuilding

walliswhiteismy

uncle'shouse.2.Iknowtheboy

youarelookingfor.3.Willyoupleaselendmetheverybook

youboughtyesterday?4.Thestudent

theteacher

praisedattheclassmeetingisourmonitor5.Theseason

comes

after

springissummer.课堂小练用适当的关系代词填空whosewhom/who/thatthatwhom/who/thatthat/which6.Thisisthemuseum

wevisitedlastSaturday.7.Theboywith

John

spoke

ismybrother.8.Thegirl

legwasbrokenintheearthqua