人教新课标版高一必修1重点提炼:Unit 4 Earthquakes语法突破The Attributive Clause (1)定语从句(Attributive Clauses)在句中做定语,修饰一个名词或代词,被修饰的名词,词组或代词即先行词。定语从句通常出现在先行词之后,由关系词(关系代词或关系副词)引出。关系代词有:who, whom, whose, that, which等。关系副词有:when, where, why等。关系代词引导的定语从句关系代词所代替的先行词是人或物的名词或代词,并在句中充当主语、宾语、定语等成分。关系代词在定语从句中作主语时,从句谓语动词的人称和数要和先行词保持一致。1)who, whom, that这些词代替的先行词是人的名词或代词,在从句中所起作用如下:Is he the man who/that wants to see you?他就是你想见的人吗?(who/that在从句中作主语)He is the man whom/ that I saw yesterday.他就是我昨天见的那个人。(whom/that