though, although　注意： 当有though, although时，后面的从句不能有but，但是 though 和yet可连用　Although it's raining, they are still working in the field.　　虽然在下雨，但他们仍在地里干活。　He is very old, but he still works very hard.　　虽然他很老，但仍然努力地工作。　Though the sore be healed, yet a scar may remain.　伤口虽愈合，但伤疤留下了。 （谚语）典型例题1） ___she is young, she knows quite a lot.　 A. When　B. However　 C. Although　 D. Unless答案：C。意为虽然她很年轻，却知道许多。

哈哈,我知道了,谢谢!