牛津英语模块一语法 定语从句(1) 1 关系代词在定语从句中得使用 除了形容词,名词等作定语来修饰名词或代词,句子也可以作定语,我们称作定语得句子为定语从句
先瞧这样得两个句子: This man is my English teacher、 He is standing at the door、 假如想把这两个句子合成一个句子,我们可将第二句转换成定语从句来修饰 the man,即: The man that/who is standing at the door is my English teacher、 这个句子中,that/who is standing at the door 充当了 the man 得定语,它就就是定语从句;而被修饰得 the man 叫作先行词,that/who 就是关系代词
2 关系代词 that,which, who, whom, whose 得区别 (1)当先行词就是‘人’时: ① 关系代词在定语从句中作主语时,用 that/who Is he the man who/that told you the news
② 关系代词在定语从句中作宾语时,用 whom/that/who,也可以省略 The boy (whom/that/who) I talked to yesterday is my brother、 (2)当先行词就是‘物’时:可用关系代词 that/which 来充当主语或宾语 This is a book which/that talks about geography、 综上所述,that 既可指‘人’,也可指‘物’,而 which 只可指‘物’,who/whom 只可指‘人’;who/that/which 都可作主语或宾语,而 whom 只能作宾语;whose 在定语从句中必须放在一个名词前作定语 The boo