定语从句知识点归纳(共3页).doc

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1、精选优质文档-倾情为你奉上定语从句复习一、语法知识归纳 定语从句 ( Attributive Clause) 句子作定语叫做定语从句。定语从句放在先行词之后。 定语从句的引导词：关系代词和关系副词。指代范围关系代词成分人who; that 主语who; whom; that宾语（可省略）物which; that主语which; that宾语（可省略）whose定语1. 关系代词 (Relative pronoun) （注意：介词后不用that） Do you still remember the chicken farm (that) we visited three months ago?I

2、 live in the house whose window faces the street. (I live in the house the window of which faces the street.) 2. 关系副词 ( Relative adverb) 指代范围关系副词成分时间when (= 适当介词+ which)状语地点where (= 适当介词+ which)原因why (= for + which)方式The way that / in which / 省略 We are living in an agewhen many things are done on co

3、mputer. 定语从句的分类：限制性定语从句和非限制性定语从句。限制性定语从句（一）限制性定语从句的基本特征： 限制性定语从句对被修饰的先行词有限定制约作用，使该词的含义更具体，更明确。限制性定语从句不能被省略，否则句意就不完整。从句与先行词之间没有逗号。 He has two sons who work in the same company. (Perhaps he has more than two sons.)（二）限制性定语从句中关系代词的用法 1. that, which 当先行词指物，并且关系代词在定语从句中充当主语或宾语时，用which/that引导定语从句。在限制性定语从句

4、中有些情况下只能用关系代词that，不用which。(1) 当先行词是不定代词all, much, little, something, everything, anything, nothing, none, the one时。 You should hand in all that you have.(2) 当先行词前面被the only, the very, any, few, little, no, all等词修饰时。 The only thing that we can do is to give you some money.(3) 当先行词是形容词最高级或先行词的前面有形容词最高

5、级修饰时。 This is the most interesting film that Ive ever seen.(4) 当先行词是序数词或它前面有序数词修饰时。 This train is the last that will go to Suzhou. (5) 当先行词既有人又有物时。 Do you know the things and persons that they are talking about?(6) 当主句的主语是疑问词who或which时。 Who is the boy that won the gold medal?(7) 有两个定语从句时，其中一个关系代词已用w

6、hich，另外一个宜用that。 They secretly built up a small factory which produced things that could cause pollution.(8) 当先行词在主句中作表语，而关系代词也在从句中作表语时。 Shanghai is no longer the city that it used to be.2. who, whom 当先行词指人，并且关系代词在定语从句中充当主语时，用who/that，不可省略；当先行词指人，并且关系代词在定语从句中充当宾语时，用whom/that/who，可以省略。She is the girl

7、 who lives next door. Thats the girl (whom/that) I teach.3. whose 无论先行词指人还是物，关系代词在定语从句中作定语时，用whose，不可省略。 This is the scientist whose achievements are well known. This is the house whose window broke last night. = This is the house of which the window broke last night. = This is the house, the window

8、 of which broke last night.4. 介词+which/whom(1)当介词放在关系代词的前面时，关系代词只能用which(指物)或whom(指人)，关系代词不能省略。 In the dark street, there wasnt a single person to whom she could turn for help. 注意：在一些固定搭配的动词短语中，由于动词和介词不可分割，因此不能把介词置于关系代词之前。 This is the pen (which/that) Im looking for. 这是我在找的笔。（不可以说：This is the pen fo

9、r which Im looking.）(2)当介词位于定语从句的末尾时，可用that/which (指物)，that/whom/who (指人)作从句中介词的宾语，而且作介词宾语的关系代词可以省略。 This is the hero (that/who/whom) we are proud of. This is the pen (that / which) I wrote the letter with.5. as as引导的定语从句常和such, so, the same, as 连用Ill buy the same dictionary as you have. 我要买和你一样的字典。

10、 We have found such materials as are used in their factory.（三）限制性定语从句中关系副词的用法 当先行词在定语从句中作状语时，要用关系副词。其中when = 表时间的介词 (如：in, at, during等) + which；where = 表地点的介词 (如：in, at, on, under等) + which；why = 表原因的介词 (如：for) + which Can you tell me the office where he works? (= in which)Do you know the reason why

11、 he is absent? (= for which)非限制性定语从句 （一）非限制性定语从句的基本特点有逗号将主句和从句隔开的定语从句叫非限定性定语从句。 非限制性定语从句的作用是用来提供附加的而非必要的信息， 只是对先行词作进一步的解释、补充或说明。若去掉此定语从句，整个主句意义很明确，不会引起误解和歧义。My mother, who is 50 this year, lives with me now. 我的母亲50岁了，她现在和我住在一起。注意：非限定性定语从句中不用关系代词that（二）非限制性定语从句中关系代词、关系副词的用法1. 在非限制性定语从句中，不可用that引导从句。先

12、行词指物时，只可用which。另外，which不仅仅指代先行词，还可以用来替代主句的整个内容或行为。Helen was much kinder to her youngest son than to the others, which, of course, made the others envy him.2. 在非限制性定语从句中，可用“名词/代词+介词(of)+which/whom”的结构。 Recently I bought an ancient vase, the price of which was very reasonable.3.“复合介词短语+关系代词which/whom”

13、引导的定语从句非限制性定语从句，从句内部常用倒装语序。 He lived in a big house, in front of which stood a big tall tree.4. 在关系副词where/when前有时可以加介词from, to等。 China is the birth place of kites, from where kite flying spread to Japan, Korea, Thailand and India. 5. 关系代词as, which引导非限制性定语从句时的区别(1) as和which都可替代主句的整个内容，而不是主句中的某一个词。as

14、 引导的非限制性定语从句，既可在主句前，又可在主句后，有时还可插入主句中，而which引导的非限制性定语从句一般置于主句之后。 The weather turned out to be very good, which was more than we could expect. As is known to everybody, the moon travels round the earth once every month. = The moon travels round the earth once every month, as/which is known to everybod

15、y.众所周知，月亮每月绕地球一圈。（可转化为名词性从句：It is known to everybody that the moon travels round the earth once every month. 或What is known to everybody is that the moon travels round the earth once every month.） (2) as多用于下列习惯用语中：as anybody can see正如人人都能看到的那样；as is well known = as is known to all众所周知；as we had expe

16、cted正如我们所预料的那样；as often happens正如经常发生的那样；as has been said before如上所述；as is mentioned above正如上面提到的。重点：1. the way作为先行词，在从句中方式状语的时候 I dislike the way in which/ that/ 省略 you treat him. 2. 抽象地点名词：situation, point ,position, key ,system, stage, case,condition, job, activity, career 等+ where Occasion + when 专心-专注-专业