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中考英语总复习9 十三、定语从句:在句中作定语的句子,它修饰一个名词或代词,这个被修饰的名词、代词叫做先行词。 一、引导词(关系词):位于从句与先行词之间,起连接作用,同时在从句中充当一定的成分。先行词分两类:1.关系代词who(作主语), whom(作宾语), whose(作定语), which(作主语、宾语), that(作主语、宾语). 2.关系副词when, where, why. 注意:1.如果关系代词在定语从句中作宾语时,引导词可以省略. eg. The trees (that) we have planted grow well. 2.关系代词作宾语时,可放在介词后。 但当关系代词是that时,则不能放在介词后。eg. This is the house in which Lu Xun once lived = This is the house which Lu Xun once lived in. =This is the house that Lu Xun once lived in 二、如何选用引导词:一般情况引导词的选用是受先行词决定的--先行词是人时用that , who , whom , whose; 先行词是物时用that , which; 先行词是时间、地点时用when , where. eg. 1)The boy who / that is standing under the tree is Jim. 站在树下的那个男孩时Jim. 2)Do you know the girl whose mother is a driver? 你认识那个妈妈是司机的女孩吗? 3)Have you been to the factory where your father works? 你去过你爸爸工作的工厂吗? | 
