? 从属连词可分为三大类: 1、that (无词义,不做成分) if,whether (表达是否的意义,但不做句子成分) 2、连接代词:who,whom,whose,what,which,whatever, whoever, whichever (有词义,在句子中可作主语、表语、宾语) 3、连接副词:when,where,why,how,how many,how long,how far,however, whenever,wherever (有词义,作从句的状语) 用法: 从结构上说,英语连接词分两大类: