although 和 though 用法有何区别?

有共同之处,也有不同点。两都可用来引导让步状语从句,表示汉语的"虽然……但是……"。但不能说although / though。。。but。如：不能说：Although / Though he is very old,but he is still quite strong。句中的but 应去掉。Although是较为正式的用语,引导的从句多位于主句前,though多用于非正式文体中,引导的从句位于主句前后都可。注意：though可用于倒装句中,although不可。如：Young though he is ,he has worked for a few years。他虽然年轻但已经工作好几年了。