限定性定语从句和非限定性定语从句之区别
限定性定语从句和非限定性定语从句之区别
1. 限定性定语从句是句中不可缺少的组成部分, 主句和从句之间不用逗号分开。除关系代词作宾语时可以省略外,作主语,定语,表语,状语等均不可省略。引导限定性定语从句的关系代词鹤和关系副词有 who whom whose that which when where why as 等。
2. 非限定性定语从句是对主句先行词作补充说明, 没有从句不影响主句意思的完整。一般用逗号把主句和从句分开,引导词有 who whose whom which when where why as 介词+ 关系代词 (which/whom), 介词+whose +名词等引导。
3. As 引导的定语从句
1)As 用作关系代词和关系副词引导定语从句, 构成 the same… as, such…as 等结构。 I like the same book as you do. ( as 作宾语)
I shall do it in the same way as you did. ( as作状语)
He was late for school today, as often happens to him. (as作主语)
2)As 引导非限定性定语从句 As在定语从句中作主语, 表语或宾语,该定语从句是说明整个句子的,As引导的从句可置于句首或主句后。
As we know, he studies very hard.
As is known to all, he is the best student in our class.
常用的这种类似插入语有 as is said above, as is known to all, as it is等。 注意易混点:1.关系代词在从句中作主语时, 从句的谓语在人称和数上必须和先行词保持
一致。
2. 关系代词 whom which that 在限定性定语从句中作动词宾语或介词
宾语,而该介词由位于从句末尾时,关系代词常省略,但as一般不省略。
3.关系代词 which 和as在定语从句中的区别是: which不能放在句首, 而
as则可以。 在句子,as有“正如, 就像”之意, 而which则没有此意思。
练习: 用关系代词和关系副词填空
1. His parents wouldn’t let him marry anyone ____________ family was poor.
2. She heard a terrible noise , ____________ brought her heart into her mouth.
3. The student described in her composition the people and places __________ impressed her most.
4.What is it ___________ you’re looking for?
5.This is the largest laboratory _____________ we have ever built in our school.
6.She is not the only one of the girls ________________ (sing) well in our class.
7.The old building ___________ the visitors will visit is a famous artist’ apartment.
8. He went to the book exhibition, ___________ he saw a large number of new books.
9. I have such materials __________ are used in their library.
10. Do you still remember the day __________ we spent doing the experiment?
11. A harvester is a machine ________________ we harvest crops or a person ___________
is harvesting.
12. We visited a few factories, __________ had a good market at home and abroad.
A. their products B. whose product C. the products of which D. those products
13. The air quality in the city, __________ is shown in the report, has improved over the
past two months .
A. that B. it C. as D. what
14. Recent accidents, __________ forty-five people lost their lives, have renewed concerns
over the safety of overweight buses.
A. that B. which C. where D. when
15.Obviously you don’t know how you slept in the night, but the way ________ you sleep say something about your health.
A. that B. which C. where D. how
16. I’ll spend my holiday in Shanghai, _________ lives my uncle.
A. who B. which C. where D. that
17. It was on a stormy night 16 years ago, ________ he will never forget, _______ his father dropped the family and left.
A. which, that B. that, which C. when, which D. that, where
18. Betweent the two parts of the concert is an interval, __________ the audience can buy an ice-cream. A. when B. where C. that D. which
19. We live in an age _________ more information is availale with greater ease than ever before. A. why B. when C. to whom D. on which
20. This tower, __________ they are planning to have decorated, is always the best place to have a view of the sea.
A. where B. what C. which D. that
21. So learned a man __________ you speak of should have learned this too in his books.
A. who B. whom C. as D. that
22. With disability, he has met with this case in his life _________ he can’t make himself
understood.
A. where B. that C. which D. why
23. I thought back a few years to the occasion _________ the issue had been raised.
A. where B. which C. that D. when
24. When deeply absorbed in work, _________ he often was, he would forget all about eating or sleeping. A. that B. which C. where D. when
25. The days are gone _________ physical strength was all you needed to make a living. A. when B. that C. where D. which
26. This is a kind of traditional teaching method ________ students are taught a lot about grammar rules.
A. where B. which C. what D. when
27. The old town has narrow streets and small houses ________ are built close to each other.
A. they B. where C. what D. that
28. The anxity ________ worries the young parents is ________ her baby is ill with heart disease.
A. which, whether B. that, that C. what whether D. what, that
29. The best way to learn a foreign language is living in the circumstance ________ the
language is spoken. A. when B. which C. that D. where
30. In our class there are 46 students, _________ half wear glasses.
A. in whom B. in them C. of whom D. of them