1. 定语从句: 1) 定语从句的定义在复合句中， 修饰名词或代词的从句叫做定语从句。被定语从句所修饰的词叫先行词。引导定语从句的词叫关系词。关系词包括关系代词who(宾格whom,所有格whose),that, which 和关系副词where, when, why 等。The boy who is wearing a black coat bought a dictionary yesterday.The noodles that（which） my mother cooked were delicious.The school where I learned judo was very large.I remember the day when our band was formed.I dont know the reason why she got so angry this morning.2) 定语从句的种类：定语从句可以分为限定性定语从句和非限定性定语从句。(1)限定性定语从句：它是先行词在意义上不可缺少的定语，如果去掉，主句的意思就
