though,although,as,but,however,since这些词怎么用答:though 连接词 conj.1. 虽然;尽管 Though he is rich, his life is not happy.他虽然很有钱,但生活并不幸福.副词 ad.1. (一般放在句尾)然而,还是 It was a hard job, he took it though.这是份苦差事,可他还是接受了.although连接词 conj.1. 虽然;尽管 Although he was ill, he ...