1、第13讲：定语从句定语从句 （一）定义及相关术语1．定语从句：修饰某一名词或代词的从句叫定语从句。定语从句一般紧跟在它所修饰的先行词之后。2．先行词：被定语从句修饰的词叫先行词。3．关系词：引导定语从句的词叫关系词。 关系词有关系代词和关系副词。关系代词有that, which, who, whom, whose, as等；关系副词有when, where, why等。 关系词通常有下列三个作用：A、引导定语从句；B、代替先行词；C、在定语从句中担当一个成分。例如： The man who is shaking hands
2、 with my father is a policeman. （二）关系代词引导的定语从句1．who 指人，在定语从句中作主语。The boys who are playing football are from Class One. 正在踢足球的男孩是一班的。2．whom 指人，在定语从句中做宾语，常可省略。 Mr Liu is the person ( whom ) you talked about on the bus. 刘先生就是你们在公共汽车上谈论的那个人。Li Ming is just the boy
3、 ( whom ) I want to see. 李明正是我想要见的男孩。 注意：关系代词whom 在口语或非正式文体中常可用who 来代替，也可省略。 The man ( whom / who )you met just now is my old friend.3．Which 指物，在定语从句中做主语或宾语，做宾语时常可省略。Football is a game which is liked by most boys. 足球是大多数男孩所喜欢的运动。The factory which makes comput
4、ers is far away from here. 制造计算机的那家公司离这儿很远。He likes to read books which are written by foreign writers. 他喜欢外国作家写的书。4．That 指人时，相当于who 或whom；指物时，相当于which.。在定语从句中作主语或宾语，作宾语时常可省略。The number of people that / who come to visit this city each year reaches one million. 每年来参观这
5、座城市的人数达一百万。Where is the man that / whom I saw this morning? 我今天早上看到的那个人在哪儿？The person that /whom you introduced to me is very kind. 你介绍给我的那个人很友好。5．Whose 通常指人，也可指物，在定语从句中做定语。可翻译出【的】I visited a scientist whose name is known all over the country. 我拜访了一个全国知名的科学家。He has a
6、 friend whose father is a doctor. 他有一个爸爸当医生的朋友。I once lived in the house whose roof has fallen in. 我曾经住在那幢屋顶已经倒塌了的房子里。注意：指物时，常用下列结构来代替：The classroom whose door is broken will soon be repaired.The classroom the door of which is broken will soon be repaired.Do you like th
7、e book whose cover is yellow?Do you like the book the cover of which is yellow? （三）“介词+关系代词”引导的定语从句关系代词在定语从句中作介词宾语时，从句常常由“介词+关系代词”引出。The school (which / that) he once studied in is very famous.The school in which he once studied is very famous. 他曾经就读过的学校很出名。Tomorrow I’ll
8、bring here the magazine (which / that) you asked for.Tomorrow I’ll bring here the
