【課件】Unit 4 Natural Disasters DiscoveringUseful Structures定語從句（課件）人教版2019必修第一冊

定語從句Attributiveclause2019人教版必修一Unit4NaturalDisastersDiscoveringUsefulStructures定語從句的定義：定語+從句定語：用來修飾名詞代詞的形容詞等。主要是形容詞。從句：從句是相對于主句而言的。從句一定有連接詞引導(dǎo)。

Iwaslateforclass,becausemyclockdidn’tgooff.定語從句：用來修飾一個名詞或者代詞的句子叫做定語從句。也叫形容詞性從句。PS:定語從句可以翻譯出一個“的”字。主句從句連接詞定語從句的結(jié)構(gòu)主句：含有被修飾的名詞從句：引導(dǎo)詞+修飾名詞的句子Thisisa

bookthat

Iboughtonline.主句中被修飾的名詞叫做先行詞，連接主句和從句的連詞叫做關(guān)系詞。定語從句的功能定語從句用來修飾限定一個名詞或者代詞。主要是限定所指人或事物的范圍。強調(diào)哪個（種）人，哪個（種）物。Ihavea

book.我有一本書（泛指）Ihaveabook（thatIboughtonline）.我有一本網(wǎng)上買的書。

（指明這本書是網(wǎng)上買的，而不是其他地方來的。言外之意他還有一些其他地方來的書。）定語從句的分類和區(qū)別限制性定語從句非限制性定語從句形式?jīng)]有逗號隔開有逗號隔開功能是指明哪個（種）人，哪個（種）物。刪除后句意受影響。沒有指明哪個（種）人，哪個（種）物。只是補充說明。刪除后句意不受影響。Hehasasisterwhoisadoctor.他有一個當(dāng)醫(yī)生的姐姐。（不止一個姐姐）Hehasasister,whoisadoctor.他有一個姐姐是一名醫(yī)生。（只有一個姐姐）關(guān)系詞的分類根據(jù)關(guān)系詞在從句中是否充當(dāng)基本成分可將關(guān)系詞分為關(guān)系代詞和關(guān)系副詞。關(guān)系詞關(guān)系代詞代人whowhomwhosethat主賓表賓語定語主賓表代物which

whosethat主賓表定語主賓表關(guān)系副詞時間when作狀語，不作基本成分。地點where原因Why關(guān)系詞的使用規(guī)則1.先行詞為物，只能使用that不能使用which的情況：(1)當(dāng)先行詞為不定代詞：all,both,neither,none,either,any,everything,nothing,something,anything,much,many,few,afew,little,alittle.(2)當(dāng)先行詞被all,both,some,no,every,any,each,much等修飾時;(3)當(dāng)先行詞被序數(shù)詞、最高級修飾；(4)當(dāng)先行詞被theonly,thevery,thelast,thesame修飾；(5)當(dāng)先行詞即有人又有物時。例句Ihavetakendown

everything

thattheteachersaid.Ihavetakendownallthatisimportant.Allthebooksthatyouboughtareinteresting.ThisisthebestbookthatIhaveread.ShoppingistheonlythingthatIwanttodo.Weoftentalkaboutthe

peopleandthings

thatweremember.不定代詞不定詞修飾最高級修飾唯一修飾人物同時先行詞為物，只能用which不能用that的情況只能用which的情況：介詞后面，逗號后面。1、介詞后面，指物的關(guān)系代詞只能用which；The

house

in

which

we

live

is

farfromschool.

Thepaintingforwhichhepaid$1,000wasonceownedbyabusinessman.2、逗號后面，指物的關(guān)系代詞只能用which。I

live

in

Kunming,

which

is

the

capital

of

Yunnanprovince.Thebigreddog,whichwasveryoldnow,becameillanddied.3.上下文出現(xiàn)that，避免重復(fù)使用which。練一練1.Doyou

have

anything

you

want

to

say

for

yourself?2.Thesportsmeetingwasputoff,

astonishedme.3.Allthepresents

yourfriendsgaveyouonyourbirthdayshouldbeputaway.4.Thisisthebestfilm

I'veeverseen.5.Thisistheverybus

I'mwaitingfor.6.Itlookslikethesamebook

youboughtinthebookstore.7.Heisalwaysthefirstman

comestoclassroom.thatthatthatthatthatwhowhich8.Thebuildingin_______shelivedwasdemolished.9.Wedependonthelandfrom________wecangetourfood.10.Wedependontheland_______wecangetourfoodfrom.11.Shewonthefirstprize,_______wasmorethanweexpected.12.Thefilm________wesawlastnightwasveryinteresting.13.Thefilm,________wasshowedlastnight,wasverymoving.14.Hisfatherpassedawayyesterday,________cameasasuddenshock.

whichwhichwhichwhichwhichWhich/thatWhich/that關(guān)系詞的使用規(guī)則2.只能使用who不能使用that的情況：(1)當(dāng)先行詞為人稱代詞：he,she,they,one(s),anyone,nobody等.HewhohasneverbeentotheGreatWallisnotatrueman.(2)當(dāng)先行詞為指示代詞時:those,these;Thosewhoareeasilycontentarealwayshappy.Godhelpthosewhohelpthemselves.(3)當(dāng)先行詞為people或是表示人的集體名詞時；Peoplewhoworkhardarealwaysfortunate.(4)非限制性定語從句中Hehasasister,whoisateacher.練習(xí)2.Doyou

knowanyone

cansolvethisproblem?3.Iadmirethose

arehonest,brave,diligent.4.Theyareaudience

areinvitedtowatchthisplay.5.Heisthebestman

I'veeverknown.6.Heisalwaysthelastone

leavesthedormitory.7.Sheisalwaysthelastone

goes

backtothedormitory.最高級修飾指人、物的先行詞，關(guān)系詞用that/who都可以。定語從句的謂語動詞跟先行詞保持一致。whowhothat/whowhowhowho關(guān)系詞的使用規(guī)則3.關(guān)系代詞的省略問題：非限制性定語從句中一定要有關(guān)系代詞，不可省略。關(guān)系代詞做主語兩種從句均不能省略。限制性定語從句中作賓語的關(guān)系代詞都可以省略，非限制性定語從句中不能省。Ilikethebook,which

yougiveme.（非限制定從作賓語，不能省which）Ilikethebook(that/which)yougiveme.（限制定從作賓語，可省that/which）關(guān)系詞的使用規(guī)則4.非限制性定語從句中，代人作主語只能用who,作賓語用who(m)均可，但是whom更為正式，很少用于口語。代物只能用which作主語或賓語，不能用that，指的是某樣?xùn)|西，或者前面提到的一整件事。Iliketeachers,who

arehumorous.（代人做主語，不能用that）Iliketeachers,who(m)

Icanaskforhelp.（代人作賓語，who，whom均可）Ilikethisbook,which

yougiveme.（代物作賓語，指的是書）Hemademistakesagain,which

madetheheadteacherangry.(代物做主語，指的是一整件事)關(guān)系詞的使用規(guī)則5.如果先行詞和從句的主語有所屬關(guān)系要用whose，可用在限制性也可用在非限制性定語從句中。whose也可以放在介詞后面：inwhosecar;fromwhosebook。Iliketheroomwhosewindow

faceseast.(房間的窗子)Iwenttohelphim,whose

moneygotlost.(他的錢)Ivisitedmyuncle,inwhosehouse

Ispentthesummervacation.關(guān)系詞的使用規(guī)則6.非限制性定語從句中，如果從句主語和先行詞存在整體與部分關(guān)系時，我們要用（all,both,each,many,most,neither,none,part,some,基數(shù)詞，序數(shù)詞，最高級）+ofwhich/whom。Theyaremystudents,threeofwhom

arefromBeijing.Ihavetenbooks,allofwhich

areinteresting.關(guān)系詞的使用規(guī)則7.介詞后面的關(guān)系詞只有which(代物)和whom(代人)，不能用that或者who。Heismyfriendwithwhom

Isharemyhappiness.ThisisareferencebookwithoutwhichIcouldn’tpasstheexam.練習(xí)Idon’tthinkthathewillcometoseeme,

makesmesad.Thisisthescientist

achievementsarewellknown.Heisafamousstar,in

gardenliesaswimmingpool.Helivedinabighouse,infrontof

stoodabigtalltree.Inthedarkstreet,therewasn’tasingleperson,to

shecouldturnforhelp.whichwhosewhosewhichwhom關(guān)系詞的使用規(guī)則8.什么時候用關(guān)系副詞？

當(dāng)先行詞在從句中不作基本成分(主、賓、表)，而且先行詞表示時間地點和原因，在從句中作狀語。翻譯分別為：when(在那個時候)、where(在那個地方)、why(因為這樣)。why的先行詞一定是reason。Circlethetwo

clubswherethesetwoconversationshappened.(P12)Iwenttomyuncle’shouse,where

Ispentmyvacation.Nooneinmoderntimesknewaboutthetombuntil1974,when

somefarmersdiscoveredthetomb.(P30)Therewasatimewhen

thetwobrotherswalkedtoschool.Myclockdidn’tgooff.Thisisthereasonwhy

Iwaslateforclass.關(guān)系詞的使用規(guī)則9. 注意：當(dāng)有的先行詞表示一種抽象的地點且在從句中做地點狀語，不作基本成分時，要用where。該類詞有：point,case,activity,system,situation,

position,stage,occasion,job,race,letter,platform,email,environment,atmosphere等。Ijoinedalotofactivitieswhere

Ilearntalot.Hegaveuphisfirstjobwhere

hesufferedalot.練習(xí)Istillremembertheday

IfirstcametoBeijing.Istillrememberthedays

wespenttogether.Canyoutellmetheoffice

heworks?Theyhavereachedthepoint

theyhavetoseparate.Doyouknowthereason

heisabsent?He'sillbadly.Thisis

heisabsent.Heislateforschoolagain.Thisis

hisalarmclockdidn‘tgooff.whenthatwherewherewhywhybecause不缺成分缺成分不缺成分不缺成分定從；不缺成分表語從句接結(jié)果表語從句接原因關(guān)系詞的使用規(guī)則:特殊的引導(dǎo)詞as10. as引