子时的区别。
(1)as引导的定语从句可置于句首、句中、句末,但which
只能置于句中,句末。
I helped him with his homework,as/which was my duty.
我帮他做作业,这是我的职责。
As was my duty,I helped him with his homework.
(2)as常用于某些短语中。如:as is said above,as is
known,as is reported/announced,as it is或出现在
appear,expect,think,suppose,mention等表猜测,
想象,预测的动词中。
He was late again,as was expected.
他又迟到,这是预料之中的事。 (3)which引导的定语从句和主句往往有因果关系或which从句是对主句的评论。 The street hasn’t been cleaned for weeks,which makes it very dirty. 街道已几个星期没清扫了,显得非常脏。 The young man cheated his friend of much money,which was disgraceful. 那个青年骗了他朋友许多钱,这是丢脸的事。 (4)which修饰一短语、句子时可作定语,但as不可。 Chaplin went to the States in 1910,by which time he had learnt to dance and act in comedies. 卓别林于1910年到了美国,到那时他已学会在喜剧中跳舞、表演了。 (5)定语从句还可由“名词/代词+of which/whom”来引导,表部分与整体或所属关系。 China has hundreds of islands,the largest of which(=of which the largest)is Taiwan. 中国有成千上万的岛屿,其中最大的是台湾。 The house the window of which faces south is our room.窗户朝南开的房子是我们的房间。 语法专练 1.We have two spare rooms upstairs,________has been
【2017届高考英语(北师大版)一轮复习综合训练(课件):Module 2 Unit 5 Rhythm】相关文章:
★ 2014届高考英语一轮复习课时作业(六)必修1Module 6《The Internet and Telecommunications》(外研版)
★ 【北师大版】2014届高考英语一轮复习指导课时作业:Unit 10 A卷 Word版含解析
★ 【浙江专用】2014届高考英语一轮复习课时作业(二十五)必修5Unit 5《First aid》
★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (24)
★ 2014高考英语(新人教版)一轮基础训练(3)A、B卷(附答案或解析)
★ 2017届高考英语(江苏专用)二轮复习高考单词5大记忆法课件:4.联想记忆法
★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (70)
★ 贵州省贵阳市2014高考英语(新人教版)一轮阅读训练(21)附答案
★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (21)
★ 【优化方案】2017届高考英语二轮复习全国卷Ⅱ规范练:1(含解析)
最新
2017-04-24
2017-04-24
2017-04-24
2017-04-24
2017-04-21
2017-04-21