4、thosewho help themselves.Hewholaughslastlaughsbest.Icycletoschool,whichdoesgoodtomyhealth.在复合句中修饰某一名词或代词的从句叫做定语从句(限定性定语从句和非限定性定语从句)。被定语从句所修饰的词叫先行词(名词,代词或整个句子)引导定语从句的词叫关系词(关系代词:who,whom,whose,which,that,as等。关系副词:when,where,why等)意义上指代先行词,起联系作用,同时又作从句中的一个成分。TheAttributiveClause(定语从句)Th