连接代词：what, whatever, who, whoever, whom, whomever, whose, which, whichever.
连接副词：when, whenever, where, wherever, how, however, why
1.连接句子或从句的连接副词
连接副词的性质类似于并列连词，使用时其前通常用分号或句号；若其前用逗号，则通常带有并列连词(如and)。
如：I don't like it; besides, it's too expensive. 我不喜欢它，而且也太贵了。
We all tried out best. We lost the game, however. 我们都已尽了最大的努力，不过我们还是输了。
2.引导从句和不定式的连接副词
用于引导从句(名词性从句)或不定式的连接副词主要有when, why, where, how等。
如：
I don't know how I can find him. / I don't know how to find him. 我不知道如何找到他。
Where we can get the money is just our problem. / Where to get the money is just our problem. 到哪里去弄到这笔钱正是我们头痛的事。
