由as, which 引导的非限定性定语从句,as和which可代整个主句,相当于and this或and that。As一般放在句首,which在句中。
As we know, smoking is harmful to ones health.
The sun heats the earth, which is very important to us.
典型例题
1)Alice received an invitation from her boss, ___came as a surprise.
A. it B. that C. which D. he
答案C. 此为非限定性从句,不能用 that修饰,而用which.,it 和he 都使后句成为句子,两个独立的句子不能单以逗号连接。况且选he句意不通。
2)The weather turned out to be very good, ___ was more than we could expect.
A. what B. which C. that D. it
答案B。which可代替句子,用于非限定性定语从句,而what不可。That 不能用于非限定性定语从句,it不为连词,使由逗号连接的两个句子并在一起在英语语法上行不通。
3)It rained hard yesterday, ____ prevented me from going to the park..
A. that B. which C. as D. it
答案B.
as 和which在引导非限制性定语从句时,这两个关系代词都指主句所表达的整个意思,且在定语从句中都可以作主语和宾语。但不同之处主要有两点:
.
例2. as可引导非限制性从句,常带有正如。
As we know, smoking is harmful to ones health.
As is know, smoking is harmful to ones health.
As是关系代词。例1中的as作know的宾语;例2中,它充当从句的主语,谓语动词know要用被动式。
Self-Driving Cars Are Just Around the Corner
崔顺实丑闻加深 朴槿惠多名助手下台
与普京打交道的四点建议
Group Identity May Prevent Human Stampedes
Assault Allegations Aggravate EU Immigration Crisis
苏格兰又要公投?
Scientists Make Progress Toward Better Diabetes Treatment, Cure
比尔盖茨称 儿女支持其捐大部分财产给基金会
US Nonprofit Working to End Homelessness
Carmakers Count on Customers’ Desire to Stay Connected
Spanish ‘Smart’ City Project Saves Time, Money
Scientists Warn AI Can Be Dangerous as Well as Helpful to Humans
优质老公的30条标准
Feeble or febrile-英语点津
Poverty and Climate Change
Plastic for 3D Printers May Become Eco-friendly
Top 5 Songs for Week Ending March 19
Top 5 Songs for Week Ending Jan. 30
Last Sunday, I went sightseeing with my friends in the Fairy Lake Park阅读理解答案.
Social Media Offers Young Voices a Platform During Uganda Election
Virtual Reality Goggles May Be Next Must-Have
Online App Teaches Girls Computer Coding
语法总结之过去完成体的用法
Oscar Race On for 2016
In Kenya, Blind Students Learn Through Technology
《识骨寻踪》第十二季将是最后一季
如何翻译“稳健的财政政策和货币政策”
Fable or parable?
Top 5 Songs for Week Ending Jan.23
惊呆,4岁女孩会7门语言
| 不限 |
| 英语教案 |
| 英语课件 |
| 英语试题 |
| 不限 |
| 不限 |
| 上册 |
| 下册 |
| 不限 |