语从句：E
gla
dwaso
eofthefirstcou
trieswherescie
tistsadopteda
dpublicizedCoper
ica
ideas哥白尼学说withe
thusiasm剑桥5Test2Readi
gPassage3
阅读O
e
ewkeyboardi
cludedkeyswhichproducedletterswhichfreque
tlyoccurtogetheri
E
glishlikei
ga
dtha
dedsotheword“thi
g”wouldtaketwostrokestowritei
steadoffive
特点1从句对先行词起限制作用，说明先行词必须如此，不能超出这个限制。先行词往往属于“集合”而非“元素”并且它所表示的内容往往与先行词关系密切，必不可少。少了它，句子往往就会成为一句废话。2关系词引导的定语从句和先行词之间绝对没有逗号隔开。
非限制性定语从句：Suchexpa
sio
whichwastotaketheE
glishla
guagewesttoAmericaa
deasttoI
diawassupportedbyscie
tificdevelopme
tssuchasthediscoveryofmag
etism磁力
阅读Itisverylikelythatthekeyboardwhichwehaveusedforoverace
turywillsoo
bereplacedbyvoiceactivatedcomputerswhichtakedictatio
听写aswespeaktothemTip在雅思阅读中，遇到__________________定语从句可以先忽略不看，先看句子的主干。
4
f特点1非限制性定语从句往往是对先行词一般为“元素”作进一步的解释和补充说明。如果把非限制性定语从句从句子中去掉，整个句子的意思不会受到很大影响。2关系词引导的定语从句和先行词之间绝对有逗号隔开。
Themetali
dustrywasestablishedatRiversideVillageby__________wholivedi
thearea
定语从句和先行词之间有没有逗号，会直接决定句子意思的不同。试比较以下两个句子意思的不同：1I
termsofexceptio
sscie
tistsrefertothewaveswhicharetoosmalli
dividuallytoco
sider
2I
termsofexceptio
sscie
tistsrefertothewaveswhicharetoosmalli
dividuallytoco
sider
写作不少人认为如今被人们广泛使用的电脑未来总有一天将会彻底取代电视机。Quitea
umberofpeoplebelievethattelevisio
swillbereplacedbycomputers__________________________________________________________________________________注意：这个句子必须用____________________定语从句表示。由此看出在雅思写作和口语中描述事务的特性往往用它来表示。
四不同关系词的用法1关系代词which的用法口语WhatisyourfavoritesparetimeactivityIusuallychoosetorelaxmyselfbywatchi
gAmerica
TVseriesi
mysparetime______________________________________________________________________________
口语Doyou
gpeoplei
yourcou
trylivebythemselvesorwiththeirpare
tsAsfarasIk
owma
ypeopleofmyagelivewiththeirpare
ts
otbecausetheywa
ttobutbecausetheyhaveto________________________________________________________________________________________________r