英语中什么是定语从句

　　定语从句，一个简单句跟在一名词或代词后(先行词)进行修饰限定，就叫做定语从句。下面是小编为你收集整理的英语中什么是定语从句，一起来看看吧。

英语中什么是定语从句

　　高中英语定语从句知识点

　　(一)定语从句一般由关系代词和关系副词引导

　　1、关系代词:who, whom, whose, which, that, as

　　2、关系副词:when, where, why

　　关系代词和关系副词必须位于从句之首,主句先行词之后,起着连接先行词和从句的作用, 同时在从句中又充当句子成分。

　　e.g. She is the girl who sings best of all.(关系代词who在从句中作主语)

　　The comrade with whom I came knows French.(whom在从句中作介词with的宾语)

　　3、关系代词和关系副词的用法:1)当先行词为人时用who 作主语,whom作宾语;2)当先行词为物或整个句子时用which ,可作主语或宾语;3)先行词为人、物时用that ,可作主语或宾语;4)whose用作定语,可指人或物;5)关系副词when(指时间,在定语从句中作时间状语,where(指地点,在定语从句中作地点状语),why(指原因,在定语从句中作原因状语)。

　　(二)限制性定语从句与非限制性定语从句

　　1、限制性定语从句:从句与主句关系密切,去掉从句,主句意义不完整,甚至不合逻辑。

　　e.g. I was the only person in our office who was invited.(去掉定语从句,意思就不完整)

　　2、非限制性定语从句:从句对先行词关系不密切,去掉定从句,意思仍然完整。形式上用逗号隔开,不能that用引导。

　　e.g. Toms father, who is over sixty, still works hard day and night.(who引导非限制性定语从句,整个句子可分成两句来翻译)

　　(三)使用定语从句时特别注意的几个问题

　　1、that与which的区别。

　　1)用that而不用 which的情况:①先行词为不定代词all, anything, nothing, …;②先行词有最高级修饰,有序数词修饰;③先行词有only, very, any等词修饰;④先行词既有人又有物时。

　　e.g. There is nothing that can prevent him from doing it. 没有什么能阻止他不干那件事。

　　The first place that they visited in Guilin was Elephant Trunk Hill. 在桂林他们所参观的第一个地方是象鼻山。

　　This is the best film that I have ever seen. 这部电影是我看过的最好的一部。

　　Mr Smith is the only foreigner that he knows. 史密斯先生是他认识的唯一的外国人。

　　2)用which而不用 that的情况:①引导非限制性定语从句;②代表整个主句的意思;③介词 + 关系代词。

　　e.g. He had failed in the maths exam, which made his father very angry. 他数学考试没有及格,这使他的父亲很生气。

　　This is the room in which my father lived last year. 这是父亲去年居住过的房子。

　　3)as引导定语从句时的用法

　　①as引导限制性定语从句通常用于the same … as, such … as结构中。

　　e.g. I want the same shirt as my friends. 我要一件跟我朋友一样的衬衫。

　　Such machines as are used in our workshop are made in China. 我们车间使用的这种机器是中国制造的。

　　②as引导非限制性定语从句既可放在主句之前,也可放在主句之后,用来修饰整个句子。通常用下列句型:as is known to all, as is said, as is reported, as is announced, as we all know, as I expect 等。

　　e.g. As I expected, he got the first place again in this mid-term examination. 正如我所预料的那样,他在这次期中考试中又获得了第一名。

　　3)as 引导非限制性定语从句时与which的区别

　　①当主句和从句语义一致时,用as;反之,用which来引导非限制性定语从句。

　　e.g. He made a long speech, as we expected.

　　He made a long speech, which was unexpected.

　　②当非限制定语从句为否定时,常用which引导。

　　e.g. Tom drinks a lot every day, which his wife doesnt like at all.

　　2. 关系代词在从句中作主语时,从句的谓语动词单数还是用复数应由先行词决定。

　　e.g. The man who lives downstairs speaks English fluently. 住在楼下的那个人英语说得很流利。

　　The students who are in Grade Three are going to climb the hill tomorrow.

　　3.定语从句有时不直接紧靠先行词,中间由一个定语、状语或谓语隔开。

　　e.g. There is an expression in his eyes that I cant understand.

　　4. 引导定语从句的关系副词有时可以用"介词 + which"来代替。

　　e.g. October 1, 1949 was the day on which ( = when ) the Peoples Republic of China was founded.

　　5. 当定语从句中谓语动词是带介词或副词的固定短语动词时,短语动词的各个固定部分不要拆开。

　　e.g. The sick man whom she is looking after is her father.

　　6. 介词在关系代词前,只能用which和whom,且不能省略;介词在句尾,关系代词可有which, that, whom, 口语中也可用who,且可省略。

　　e.g. The man (whom/ who/ that) you were talking about has come to school.

　　高中英语定语从句习题

　　一、把下列每对句子合并成含有定语从句的主从复合句:

　　1. The fan is on the desk. You want it.

　　2. The man is in the next room. He brought our textbooks here yesterday.

　　3. The magazine is mine. He has taken it away.

　　4. The students will not pass the exam . They dont study hard.

　　5. The woman is our geography teacher. You saw her in the park.

　　6. The letter is from my sister. I received it yesterday.

　　7. The play was wonderful. We saw it last night.

　　8. The train was late. It was going to Nanning.

　　9. The boy is my brother. He was here a minute ago.

　　10. The tree is quite tall. He is climbing it.

　　11. Here is the girl. Her brother works in this shop.

　　12. Thats the child. We were looking at his drawing just now.

　　13. This is the boy. His sister is a famous singer.

　　14. I want to talk to the boys. Their homework havent been handed in.

　　15. Is that the woman? Her daughter is in my class.

　　16. He used to live in a big house. In front of it grew many banana trees.

　　17. They passed a factory. At the back of the factory there were rice fields.

　　18. The soldier ran to the building. On the top of it flew a flag.

　　19. In the evening they arrived at a hill. At the foot of the hill there was a temple.

　　20. She came into a big room. In the middle of it stood a large table.

　　二、根据句子意思,在第一个空白处填入介词,在第二个填入关系代词whom或which:

　　1. The person ________ ________ I spoke just now is the manager that I told you about.

　　2. The pencil ________ ________ he was writing broke.

　　3. Wu Dong, ________ ________ I went to the concert, enjoyed it very much.

　　4. The two things ________ ________ Marx was not sure were the grammar and some of the idioms of English.

　　5. Her bag, ________ ________ she put all her books, has not been found.

　　6. The stories about the Long March, ________ ________ this is one example, are well written.

　　三、选择填空:

　　1. The man ____ visited our school yesterday is from London.

　　A. who B. which C. whom D. when

　　2. The woman ____ is talking to my mother is a friend of hers.

　　A. whose B. who C. whom D. which

　　3. Because of my poor memory, all ____ you told me has been forgotten.

　　A. that B. which C. what D. as

　　4. Do you remember those days ____ we spent along the seashore very happily?

　　A. when B. where C. which D. who

　　5. Tom did not take away the camera because it was just the same camera ____ he lost last week.

　　A. which B. that C. whom D. as

　　6. Those ____ want to go please sign their names here.

　　A. whom B. which C. who D. when

　　7. Where is the man ____ I met this morning?

　　A. when B. where C. which D. who

　　8. Who is the woman ____ is sweeping the floor over there?

　　A. who B. / C. that D. when

　　9. The man ____ you talked just now is a worker.

　　A. who B. whom C. to whom D. to who

　　10. The man ____ you are going to make friends is my fathers neighbour.

　　A. with whom B. when C. to whom D. which

　　11. The doctor ____ is leaving for Africa next month.

　　A. the nurse is talking to him B. whom the nurse is talking

　　C. the nurse is talking to D. who the nurse is talking

　　12. The man ____ around our school is from America.

　　A. which you showed B. you showed him C. you showed D. where you showed

　　13. He talked about a hero ____ no one had ever heard.

　　A. of whom B. from whom C. about that D. who

　　14. In fact the Swede did not understand the three questions ____ were asked in French.

　　A. where B. who C. in which D. which

　　15. Have you read the book ____ I lent to you?

　　A. that B. whom C. when D. whose

　　16. Finally, the thief handed over everything ____ he had stolen to the police.

　　A. that B. which C. whatever D. all

　　17. The foreign guests, ____ were government officials, were warmly welcomed at the airport.

　　A. most of them B. most of that C. most of whom D. most of those

　　18. This is the very letter ____came last night.

　　A. who B. which C. that D. as

　　19. I know only a little about this matter; you may ask ____ knows better than I.

　　A. whoever B. whomever C. anyone D. the one

　　20. This is the school ____ we visited three days ago.

　　A. where B. / C. when D. what

　　21. This is the factory ____ we worked a year ago.

　　A. where B. that C. which D. on which

　　22. Nearby were two canoes ____ they had come to the island.

　　A. which B. in which C. that D. /

　　23. Jack is pleased with ____ you have given him and all ____ you have told him.

　　A. that, what B. what, that C. which, what D. that, which

　　24. Do you work near the building ____ colour is yellow?

　　A. that B. which C. its D. whose

　　25. In the dark street, there wasnt a single person ____ she could turn for help.

　　A. whom B. who C. to whom D. form whom

　　26. Is this school ____ we visited three years ago?

　　A. the one B. which C. that D. where

　　27. Is this the school ____ we visited three years ago?

　　A. the one B. where C. in which D. /

　　28, How many students are there in your class ____ homes are in the country?

　　A. whose B. who C. whom D. which

　　29. Alice received an invitation from her boss, ____ came as a surprise.

　　A. it B. which C. that D. he

　　30. The train was crowded and I had to get into a carriage ____ already seven other people.

　　A. when there were B. which there were C. that there were D. where there were

　　31. I live in the house ____ windows face south.

　　A. which B. whose C. where D. in that

　　32. ---- What game is popular with them? ---- The ____ most is tennis.

　　A. game they like it B. game they like C. best game they like D. best game they like it

　　33. They stayed with me three weeks, ____ they drank all the wine I had.

　　A. which B. which time C. during which time D. during which

　　34. The room ____ Mr White lives is not very large.

　　A. that B. which C. where D. when

　　35. Dont forget the day ____ you were received into the Youth League.

　　A. when B. that C. at which D. where

　　36. Ive finished writing the novel, ____ is to be published next month.

　　A. that B. what C. which D. when

　　37. He returned home safe and sound after a fierce battle, ____ was unexpected.

　　A. which B. as C. that D. it

　　38. ____ we is known to all, English is not very difficult to learn.

　　A. What B. As C. That D. Which

　　39. The old man had three sons, all of ____ died during World War Ⅱ.

　　A. whose B. that C. whom D. who

　　40. I have bought two pens, ____ write well.

　　A. none of which B. neither of which C. both of which D. all of which

　　41. Do you know the reason ____ she has changed her mind?

　　A. why B. which C. for that D. of which

　　42. He failed in the exam, ____ proves that he wasnt working hard enough.

　　A. which B. what C. it D. that

　　43. During the week ____ he tried to collect materials for his article.

　　A. following B. followed C. to follow D. that followed

　　44. ____ was expected, he succeeded in the exam.

　　A. It B. Which C. As D. That

　　45. He studied hard and later became a well-known writer, ____ his father expected.

　　A. that was what B. what was that C. and which was D. which was what

　　46. We should read such books ____ will make us better and wiser.

　　A. when B. as C. whose D. what

　　47. You must show my wife the same respect ____ you show me.

　　A. when B. as C. whose D. what

　　48. He is absent ____ is often the case.

　　A. what B. which C. who D. as

　　49. It is the first time ____ I have come to your city.

　　A. that B. which C. what D. when

　　50. Who ____ has the same idea as it will do it in this way.

　　A. who B. that C. whom D. which

　　51. I shall never forget those years ____ I lived in the country with the farmers, ____ has a great effect on my life.

　　A. that, which B. when, which C. which, that D. when, who

　　52. This is the only book ____ I can find.

　　A. that B. which C. it D. with which

　　53. I dont like ____ you speak to her.

　　A. the way B. the way in that C. the way which D. the way of which

　　54. That is one of those books that ____ worth reading.

　　A. is B. are C. has D. have

　　55. This is the only one of the students whose handwriting ____ the best.

　　A. is B. are C. has D. have

　　56. There was ____ to prevent the accident.

　　A. something could do B. anything we could do

　　C. nothing we couldnt do D. nothing we could do

　　定语从句的判断

　　一、定语从句的判断：

　　【一】

　　名词（句子）+连接词+句子

　　其中识别度最高的关键之处，就是连接词，它有三种：

　　① 关系代词：who, whom, that, which, as, whose

　　② 关系副词：when, where, why, how

　　③ 介词+关系代词：介词+whom, 介词+which, 介词+whose

　　但注意，有时你会看到 in that，但in that=because，算是一种固定搭配，这和定语从句没关系。

　　【二】

　　这里单独说一下as引导的定语从句吧，因为其它都还比较常见，as相对来说比较生疏。

　　主要是在same和such之后，定语从句用as引导，但偶尔the same后面也用that.

　　如：Ive never heard such stories as he tells.

　　我从来没听到过他讲的这种故事。

　　He is wearing the same suit as(或that) he wore at Marys wedding.

　　他穿着与他在玛丽的婚礼上穿的一样的衣服。

　　二、定语从句的处理

　　原则：将定语从句完整地切分出来，独立成句。

　　两个关键点：① 完整地切分；② 独立成句

　　第一步，切分：切分点在连接词前，如果连接词前有介词那就在介词前。

　　如：I love this girl / who is beautiful.

　　I went to Changchun / where I met my wife for the first time.

　　I have three books / of which the red is my favorite.

　　第二步，找指代（也就是关系代词的指代对象）：

　　如：This is the expert / to whom we are turning.

　　注：turn to = resort to = 求助于……

　　这句话里的关系代词是 whom , 它的指代对象是the expert.

　　所以这句话翻译过来是：这就是我们正在求助的那个专家。

　　第三步，调语序。

　　需要调整语序的也就是关系代词和（介词+关系代词）

　　还是上面那句话：This is the expert to whom we are turning.

　　先切分，① this is the expert /

　　② to whom we are turning

　　再找到第②句中whom的指代对象，whom=the expert

　　也就是 to the expert we are turning

　　这时落实到我们要讲的调语序了，因为我们发现to the expert we are turning,它由于受到定语从句规则的限制，所以不是正常语序，现在我们把它变成正常语序就是：we are turning to the expert

　　这时，你再翻译成中文时就没有障碍了。

　　至此，我们总结一下，定语从句的处理就是分三步，1.切分；2.找指代；3.调语序

　　这样就可以完成了将一个定语从句从英文到中文的转换，所以下次遇到定语从句时，你只管先“咔嚓”来一刀，给它切开，两个句子安安静静地出现在你面前，你就别么费劲地去前置了，那么定语从句就不能前置了吗？也不是不能，语义如果挺顺畅的你就前置呗，只是能前置的定语从句基本上都退化成后置定语了，比如，an apple which is on the table也可以写成an apple on the table（桌子上的苹果）

　　a way which is to solve the problem也可以写成 a way to solve the problem（解决这个问题的方法）

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