初三英语定语从句讲解及练习题.doc

初三英语定语从句讲解及练习题 在复合句中修饰名词和代词的从句叫做定语从句。被定语从句修饰的名词或代词叫做先行词。 引导定语从句的关系代词有who, whose, whom, which, that 。 引导定语从句的关系副词有when, where, why。 关系代词在定语从句中做主语，宾语，定语。关系副词在定语从句中做状语。 一、who引导的定语从句,who在从句中做主语(口语中也可做宾语)，修饰表示人的先行词。 This is the man who helped me. The boy who//whom we saw yesterday is John’s brother. 二、whom引导的定语从句,whom在从句中作宾语,修饰表示人的先行词，口语中可以省略。 The doctor (whom) you are looking for is in the room. The person (whom) you just talked to is Mr. Li. =The person to whom you just talked is Mr. Li. (介词后 whom不能省略) The babies whom the nurses are looking after are very healthy. (固定短语中的介词一般不能拆开仍放在动词之后。look for / look after /take care of / put on / take off…) 三、whose引导的定语从句,whose在从句中作定语，修饰表示人或物的先行词。 Do you know the woman whose name is Mary. Pass me the dictionary whose cover is black. He has a friend whose father is a doctor. 四、that引导的定语从句，that在从句中做主语或宾语、修饰表示人或物的先行词。作宾语时可省略,不能放在介词后面作宾语. (that指人时，相当于who或者whom；指物时，相当于which) The letter (that//which) I received was from my father. I can’t find the letter that//which came this morning. Do you still remember the days (that//which)we spent together ? This is the man that//who helped me. The house (that//which) we live in is not large. =The house in which we live is not large. The doctor (that//whom //who)you are looking for is in the room. 五、which引导的定语从句，which在从句中做主语，也可做宾语，或介词的宾语，修饰表示物的先行词。 This is the book (which/that ) you want. The building which//that stands near the river is our school. The room in which there is a machine is a workshop.(介词后面的which不能省略) The house (which/that) we live in is not large. This is the watch (which/that ) he was looking for. 六、that 和which 都可以修饰表示物的先行词, 但是下列情况只能用that. 先行词为不定代词all, few, little, much, everything, nothing, anything等. All (that) you have to do is to practise every day. There isn’t much (that) I can do. Tell us everything that you know, please. Is there anything that you don’t understand? 先行词被序数词或形容词的最高级所修饰时. The first lesson (that) I learned will never be forgotten. This is the best film (tha