初中定语从句讲解及练习

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初中定语从句讲解及练习一、定义:在复合句中,修饰某一名词或代词的从句叫做定语从句。

如:1) The man who lives next to us is a policeman.2) You must do everything that I do.上面两句中的man和everything是定语从句所修饰的词,叫先行词,定语从句放在先行词的后面。

* 引导定语从句的词有关系代词that, which, who(宾格whom, 所有格whose)和关系副词where, when、why* 关系词常有三个作用:1、引导定语从句2、代替先行词3、在定语从句中担当一个成分二、关系代词引导的定语从句* 1.who指人,在从句中做主语(1)The boys who are playing football are from Class One.(2)Yesterday I helped an old man who lost his way.* 2. whom指人,在定语从句中充当宾语,常可省略。

(1) Mr. Liu is the person (whom) you talked about.注意:关系代词whom在口语和非正式语体中常用who代替,可省略。

(2) The man (who/whom )you met just now is my friend.* 3. which指物,在定语从句中做主语或者宾语,做宾语时可省略(1) Football is a game which is liked by most boys. ( which 在句子中做主语)(2) This is the pen (which) he bought yesterday. ( which 在句子中做宾语)* 4. that指人时,相当于who或者whom;指物时,相当于which,在定语从句中做主语或者宾语,做宾语时可省略。

(1) The people that/who come to visit the city are all here. (在句子中做主语)(2) Where is the man (that/whom )I saw this morning? (在句子中做宾语)* 5. whose通常指人,也可指物,在定语从句中做定语(1) He has a friend whose father is a doctor.(2) I lived in a house whose roof has fallen in.whose指物时,常用以下结构来代替(3)The classroom whose door is broken will soon be repaired.=The classroom the door of which is broken will soon be repaired.(4)Do you like the book whose color is yellow?=Do you like the book the color of which is yellow?* 具体使用时还要注意下列问题:1、只能使用that,不用which 的情况:* 1)当先行词是:all , any , anything , everything , nothing或被它们修饰时。

Is there anything that I can do for you ? 有什么可以为你做的吗?All that can be done must be done . 凡是能做的都必须做。

* 2)当先行词被形容词的最高级或序数词修饰时。

例如:That is one of the most interesting books that are sold in the bookshop .那是这家书店出售的最有趣的书之一。

The first thing that we should do is to get some food .我们该做的第一件事是弄点吃的。

* 3)当先行词有:the only , the very , the same , the last 等修饰时。

例如:My necklace is not the only thing that's missing .我的项链不仅是丢掉的东西。

* 4)当主句以who或which开头时,定语从句中引导词用that ,不用which 或who ,以避免重复。

例如:Who is the girl that is wearing a red coat ?正穿一件红色外套的女孩子是谁?* 5)当先行词既有人又有物时,用that 。

例如:The writer and his novel that you have just talked about are really well known .你刚才谈起的那位作家以及他的小说确实很著名。

2、只用which不用that的情况:* 1) 关系代词前有介词时;e.g. This is the room in which Lu Xun lived.* 2)非限定性定语从句中;作宾语用的关系代词也不能省略。

e.g. That necklace, which you gave me as a present, was lost yesterday.He has a daughter, who works in a hospital.* 3) 先行词本身是that时;e.g. The clock is that which tells the time非限定性定语从句的作用是对所修饰的成分作进一步说明,通常是引导词和先行词之间用逗号隔开,将从句拿掉后其他部分仍可成立。

Charles Smith, who was my former teacher, retired last year. 查理史密斯去年退休了,他曾经是我的老师。

(非限)There is somebody here who wants to speak to you这里有人要和你说话(限制性)* 4) which还有一种特殊用法,它可以引导从句修饰前面的整个主句,代替主句所表示的整体概念或部分概念。

在这种从句中,which可以作主语,也可以作宾语或表语,多数情况下意思是与and this 相似,并可以指人。

He did very well in the competition, which made his parents very happy.* 关系代词whom,which 在定语从句中作介词宾语时,可以和介词一起放于先行词与定语从句之间,有时为了关系紧凑也可以将whom 与which 与先行词紧挨着书写,而将介词置于定语从句的后面,That was the room in which we had lived for ten years.= That was the room which we had lived in for ten years.* 像listen to, look at, take care of等固定短语动词,在定语从句中一般不宜将介词与动词分开。

例如:This is the boy whom she has taken care of.三、关系副词引导的定语从句* 1、when:当主句中的先行词(即主句中被后面定语从句修饰的词)是表示时间意义的名词时,它只能作定语从句的时间状语,放在定语从句句首。

如果定语从句的引导词是作该定语从句的主语或宾语,则要改用关系代词that或which来引导。

例如:I’ll never forget the time when we worked on the farm.He arrived in Beijing on the day when I left.The days when we used foreign oil are gone. 我们用洋油的日子一去不复返了。

I'll never forget the day when I was born. (=I'll never forget my birthday.) 我永远不会忘记我出生的日子。

It happened in November when the weather was wet and cold. 这事发生在天气又湿又冷的十一月。

The day (that) I always remember in all my life is my birthday. 我一生中最难忘的日子是我的生日。

(that作定语从句"that I always remember in all my life"的宾语,that可以省略)* 2、where:当主句中的先行词是表示地点意义的名词时,它只能作其所在的定语从句的地点状语,放在定语从句的句首。

如果定语从句的引导词作该定语从句的主语或宾语时,也要改用关系代词that或which来引导。

例如:The factory where his father works is in the east of the cityThis is the room where (=in which) I lived last year. 这就是我去年住过的房间。

Is this the classroom where(=in which) the old worker is going to make/give us a report? 这就是那位老工人要给我们做报告的教室吗?Let's look for a place where we can swim. 咱们找一个可以游泳的地方吧。

The building that is being built over there will be a new hospital. 正在那边建的楼房将是一家新医院。

(引导词that作定语从句"that is being built over there"的主语)That is the factory (that) they visited last month. 那就是他们上个月参观过的工厂。

(引导词that作定语从句"(that) they visited last month"的宾语,that可以省略)* 注意:不要以为在时间名词后就一定用关系副词when,在地点名词后就一定用关系副词where,在表示原因的the reason后就一定用关系副词why。