非限制定語從句剖析

NewYork,wheretheworld-famoustwintowers

oftheWorldTradeCenterwereoncelocated,is

knownasacityofskyscrapers.TheNon-RestrictiveRelativeclause(非限制性定語從句)eg:Thisisthehousewhichweboughtlastmonth.這是我們上個月買的那幢房子.(限制性)eg:Thehouse,whichweboughtlastmonth,isverynice.這幢房子很漂亮,是我們上個月買的.(非限制性)

非限制性定語從句非限制性定語從句與先行詞之間常用逗號分開。非限制性定語從句不能用that來引導(dǎo)。非限制性定語從句常常用來修飾整個句子。NewYork,wheretheworld-famoustwintowersoftheWorldTradeCenterwereoncelocated,isknownasacityofskyscrapers.

Mysister,whoworksinShanghai,sendsmeanemailalmosteveryday.獨一無二運用非限制性定語從句的情況比較：MysisterwhoworksinShanghaisendsmeanemailalmosteveryday.2.代詞/數(shù)詞/名詞/形容詞最高級+介詞+關(guān)系代詞，常引導(dǎo)非限制性定語從句。

Theoldmanhastwosons,

both

ofwhomaredoctors.

Chinahasmanyislands,

thelargestofwhich

isTaiwanisland.

Thereare50studentsinourclass,

two-thirdsofwhom

havebeentoBeijing.

Iliketoliveinthehouse,infrontofwhichthereisatalltree.that/why

不能引導(dǎo)非限制性定語從句。4.在非限制性定語從句中

whom

不能省。5.which

/as

引導(dǎo)非限制性定語從句，可替代前面句子.Hefailedtopasstheexam,

which/asmadehisparentsveryangry.asorwhich

兩者均可引導(dǎo)非限制性定語從句,有時可以互換,但下列情況多

用as.1.as

引出的定語從句可放在句首,

which則不能。

Asweallknow,theearthisround.

as

有正如的意思，定語從句中的動詞是know,see,expectasweallknow/as

isknowntoall,

As

anybodycansee,theelephantisroundandtalllikeatree

Aswehadexpected,hewonthefirstprize.

3.asis/wasdone,is/was可省

eg:asplanned/expected

.4.固定搭配

(后面常接動詞的被動語態(tài)或be動詞)

asisoftenthecase,asissaid/mentioned/listedabove

asisusualwithsb,

asoftenhappensLincolnwasshotinatheatre,

as(was)

describedinthisfilm.whose(指物時)=the+n+ofwhich

Theyliveinahouse,whosedooropenstothesouth.Theylivedinahouse,thedoor

ofwhichopenstothesouth.Theylivedinahouse,ofwhich

thedooropenstothesouth.what=先行詞+關(guān)系代詞Hetoldmewhat(=allthat)hadhappened.Shanghaiisnolongerwhat(=thecity

that)itusedtobe.Sheisnolongerwhat

(=thegirl

that)sheusedtobe.After2hours’drive,wearrivedatwhat(=theplace

that)isnowtheGrandTheatre.Afterwhat

seemedalongperiodoftime,hecameto.

通常用

as

的情況

5.thesameas,such…as,as…as,so…as

a.Thisis

thesame

pen

as

Ilostyesterday.(同類)

cf:I’mafraidthatyouhavetogobackthesamewaythatyoucame.(同一)

b.

Such

afilm

as

youdescribedcan’tbeseenbychildren.(定語從句)cf:It’ssuchaninterestingfilmthateverybodylikestoseeit.

(結(jié)果狀語從句)

c.Thereareasmanybooksasareneeded.關(guān)系副詞when/where/why=介詞＋which,在從句中作狀語.when=in/onwhich/(which/that)…in/onwhere=inwhich/(which/that)…in

thereasonwhy/forwhich/(which)…fortheway(inwhich/that),thesituation/systeminwhich/where

thecaseinwhich/where,anemergencyinwhich/wheretheconditions/circumstancesinwhich/underwhich/where

theoccasiononwhich/when/where

theextenttowhich,

thepoint/atwhich/where

3.

定語從句和并列句的區(qū)別Therearesomebusesatthebusstop

and

mostofthemarealreadyfull.cf:Therearesomebusesatthebusstop,

mostof

whicharealreadyfull.4.

定語從句和強調(diào)結(jié)構(gòu)的區(qū)別Itwasatfiveo’clockthatTomcametoseemeyesterdayafternoon.Itwa