though、although引导让步状语从句时，后面的主句不能有but，however，但是可与yet，still连用。相信though、although用法详解如下：

1. although和though同义，在一般情况下，可以互换使用。只是though较普遍，常用于非正式的口语或书面语中，而although则较为正式。另外although语气比though重，常用以强调让步概念。

e.g. Though/Although my car is very old, I don't want to buy a new one.

同义句：My car is very old, but I don't want to buy a new one.

虽然我的汽车很旧，但我不想买一辆新的。

2. even能和though组合表示强调，但even不能和although组合。因此，不能说even although,在这里even though=even if(no matter if; though即使……也……)

e.g. Even if/Even though we could afford it, we wouldn't go abroad for our vocation.

即使我们付得起这笔钱，也不出国度假。

3. 当让步状语从句指某种假设情况时，通常用though,而不用although。

e.g. Though all the world were against me, I should still hold to my opinion.

就算全世界都反对我，我还是坚持我的立场。

4. though可以独立用作副词，常放在句末，意为all the same (还是;仍然)或however(可是;然而)，而although无此用法。

e.g. She didn't tell me what she had done, but I know it though.

她没有告诉我她所做的事情，但我还是知道了。

5. although和though引导让步状语从句时，常采用省略形式。

e.g. Although tired (=Although he was tired), he kept on working.

虽然很疲劳，但他继续工作。

相信这篇though、although用法对大家一定很有帮助的，想要获取更多初中英语语法备考信息请时刻关注我们初中英语专栏查阅~