区别 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。 Though/Although my car is very old, 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。 He insisted on doing it although I warned him not to.虽然我警告他不要做，但他仍然坚持要做。 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……) 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。 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。 Though everybody deserts you, I will not.即使所有人都抛弃你，我也不会的。 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。 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。 It's hard work. I enjoy it, though.工作很苦，可是我喜欢。 ⑤ though引导让步状语从句时可以倒装，而although从句则不能。 Bravely though they fought, they had no chance of winning.虽然他们打得很勇敢，但还是没有机会获胜。 相同点： ①在although和though 引导的让步状语从句中，主句里不可用but,若要强调前后两部分的对比意义，可在主句前加yet或still。 Although/Though he has a lot of money, yet/still he is unhappy.他虽然有很多钱，但并不幸福。 ② although和though引导让步状语从句时，常采用省略形式。 Although tired (=Although he was tired), he kept on working.虽然很疲劳，但他继续工作。 The problem, though complicated(=though it is complicated), can be solved without much difficulty.这个问题虽然复杂，但解决起来不会有很大困难。 as, though, although引导的让步状语从句。 [注意]although位于句首;though位于句首或句中;as位于句中=though。它的词序是把句中强调的形容词、副词、动词或名词放在连词前。[参考倒装结构] 请注意下列句式的变化： [例句] 1. Although/Though I’m young, I already know what career I want to follow. →Young as/though I am, I already know what career I want to follow.我虽然年轻，但我已经明白我应该追随什么样的事业。 2. Although/Though I respect him very much, I cannot agree with his idea. →Much as/though I respect him, I cannot agree with his idea. 虽然我很尊重他，但是我不同意他的观点。 3. Although/Though he is a child, he knows a lot of Chinese characters. →Child(省略冠词)as/though he is, he knows a lot of Chinese characters. 他虽然还是个孩子，却认识了许多汉字。 本文来源：https://www.wddqw.com/doc/1a2b1a34ef06eff9aef8941ea76e58fafab045a1.html