请问although跟though在用法上有什么区别啊?

As conjunctions,although and though are generally interchangeable:Although (or though ) she smiled,she was angry.Although is usually placed at the beginning of its clause (as in the preceding example),whereas though may occur elsewhere and is the more common term when used to link words or phrases,as in wiser though poorer,or in constructions such as Fond though (not although ) I am of opera,I'd rather not sit through the Ring cycle this weekend.
作为连词although 和 though 通常可以互换使用：Although （或 though ） 尽管她微笑着,她却在生气.Although常放在从句的开头（如前面例句）,而though 可以出现在其它位置,当用来连接词语或短语时更为常用,如尽管穷一些却更有头脑 或在下面这种结构中 尽管 （不用 although ） 我很喜欢歌剧,我也不愿这个周末一直坐等到 打铃 散场.