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1、定语从句定语从句 1. 先行词为人时，关系代词用who, whom, that。 2. whose既可修饰人又可修饰物，表示所属关系。 Eg: Edison whose name is well-known all over the world is a great inventor. They live in the house whose windows are broken. 3. 先行词为事或物时，关系代词用which或 that。 4. 关系代词紧跟介词，做介词宾语时，只能用whom或 which。 Eg: The music to which we listened last ni
2、ght is written by my father. The boy with whom youre playing comes from America. 5. 当先行词是all, everything, something, nothing 等不定代词，或先行词被 first, last, just, only, few, much, some, no以及形容词最高级等词修饰时，用关系代词that。 Eg: 1. There is something I should like to call you attention to. A. where B. that C. which D.
3、 whose 2. That was the only worthwhile result I could get. A. who B. whose C. that D. which 3. There are the happiest hours we have ever spent. A. when B. that C. which D. of which 6. 当并列的两个先行词分别表示人和物时，用关系代词that。 Eg: We were deeply impressed by the teachers and schools we had visited there. A. who B
4、. whom C. which D. that 7. as在定语从句中的用法 1)引导限制性定语从句：主要用在suchas和the sameas的结构中，代替先行词为人或物的名词。 Eg: He works in the same shop as/that I do. 他与我在同一个商店工作。 2) 引导非限制性定语从句：as引导非限制性定语从句时，代替整个主句，对其进行说明。该从句的位置比较灵活，可谓与主句前面，或插在主句中间，或位于主句后面。通常均由逗号将其与主句隔开。可翻译为“如。”，“像。”。常见句型有： As is shown in As has been stated above
5、As has just been proved As is well known As we know As the name indicates Eg: As has been pointed out, Theory of Relativity is very important. 正像人们所指出的那样，相对论非常重要。 1. We need such materials can bear high temperature and pressure. A. that B. which D. as D. that 2. You must show my wife respect you sho
6、w me. A. the same with B. the same as C. the such as D. the such that 3. He is an Englishman, I know from his accent. A. as B. that C. that as D. which as 8.关系词的选择 1)主要看代替先行词的关系词在从句中担任的成分，主语、宾语、定语还是状语。 1 2)看先行词表示的是人、物、时间、地点还是原因。 3)判断定语从句是限定性，还是非限定性的。 Eg: 1. This is the school where I studied ten yea
7、rs ago. This is the school which I visited last summer. 2. The reason which he gave me was unacceptable. The reason why he did that was unacceptable. 9.割裂式定语从句 1)当先行词跟有较长的定语从句和较短的谓语时，为了平衡句子结构，可把谓语动词放在先行词与定语从句之间。 Eg: He can conquer all kinds of difficulties can conquer himself. A. where B. that C. wh
8、ich D. who 2)当先行词跟有较长的定语从句和较短的宾语补足语，为了句子平衡结构，可把补足语放在先行词与定语从句之间。 Eg: 1. He asked the boy to stay at home was ill. A. where B. at which C. who D. whom 2. We all considered the dictionary valuable was compiled by first-rate scholars. A. that B. who C. as D. why 10. 关系副词when, where, why 1) 当先行词为time, da
9、y ,moment, occasion, week, month等时，用when引导时间定语从句。 2) 当先行词为place, room, spot, city, country, auditorium等时，用where引导地点定语从句。 3) 当先行词为reason时，用why引导原因定语从句。 Eg: The reason why (for which) he missed the bus was that he got up late. 他没赶上汽车的原因是因为他起床晚了。 This is the factory where (in which) my father worked. 这
10、就是我父亲工作过的工厂。 11. 限定性定语从句和非限定性定语从句的区别 1) 限定性定语从句修饰先行词,紧接先行词后，常翻译为先行词的定语，无逗号；起限定作用，若省去，原句意义不完整。关系代词有时可由that代替, 有时也可省略。 2）非限定性定语从句，起补充说明作用, 若省去，原句意义不受影响，有逗号与主语隔开，既可修饰先行词，也可修饰整个主句；常翻译为另 一并列分句，不可用that代替,也不能省略 eg: He is the man who lives next door. 他是住在隔壁的那个人。(从句不可去掉，否则意义就不明确了。) This is Mr. Smith, who tea
11、ches English at our college. 这位是史密斯先生，他在我们学校教英语。(从句只是作进一步的说明，可以省去。) Have you set the day when you will move? 你搬迁的日子定了吗？(从句不可省。) The meeting will be put off till next month, when we will have made all the preparations. 会议将推迟到下个月，到那时我们将作好了充分的准备。(从句可省。) 2 Exercises: 1. Do you know the girl was injured
12、in the accident? A. who B. whom C. whose D. which 2. The young man with I traveled could speak English. A. who B. whom C. whose D. that 3. The book you are reading is written by an American novelist. A. what B. that C. of which D. of that 4. He came at a time we were badly in need of help. A. that B
13、. where C. when D. in which 5. Is this the place that traffic accident occurred? A. that B. which C. where D. on which 6. This is the reason computers will never be able to replace man. A. that B. which C. as D. why 7. We were deeply impressed by the teachers and schools we had visited there. A. who
14、 B. whom C. which D. that 8. These are the happiest hours we have ever spent. A. when B. that C. which D. of which 9. That was the only result worthwhile result I could get. A. who B. whose C. that D. which 10. The tree has been cut down was 300 years old. A. which B. as C. who D. whose 11. The tree
15、 leaves have fallen is 300 years old. A. which B. that C. whose D. as 12. I will never forget the ten years we both spent in the little village. A. which B. when C. what D. as 13. Experienced workers may move to the earthquake area more skills are required. A. where B. which C. when D. while 14. Cou
16、ld you tell me the reason you didnt come to the meeting yesterday? A. that B. which C. why D. when 15. He will always remember the day he returned from America. A. that B. of which C. at which D. when 16. The days you could travel without a passport are a thing of the past. A. in which B. on which C
17、. of which D. by which 17 The first thing she should do was to repair the bed. A. that B. which C. about that D. about which 18. Do you still remember the hours we had a party in the park? A. that B. which C. when D. at that 19. is need is a continuous supply of the basic necessities of life. A. All that B. All which C. All what D. All in which 20. He answered with the same words he asked. A. that B. which C. as D. after 3
