conj. 尽管；虽然；但是；然而
1. 用作连词，表示“虽然”，两者大致同义，可换用，只是 although 比 though 更为正式。如：
Though [Although] they’re expensive, people buy them. 虽然它们很昂贵，人们还是买。
2. although 一般不用作副词，而 though 可用作副词，表示“可是”“不过”。如：
I expect you’re right—I’ll ask him, though. 我认为你说得对——我去问问他也好。
She promised to phone. I heard nothing, though. 她答应要打电话来. 可我没听到回信儿。
这样用的though通常位于句末，但有时位于句首的though也有这样的意思。如：
他说他要付钱，然而我认为他不会付的。
正：He says he’ll pay, though I don’t think he will.
正：He says he’ll pay; I don’t think he will, though.
3. 在 as though（好像，仿佛），even though（即使，纵然）等固定短语中，不能用 although代替though。如：
She treats me as though I were a stranger. 她待我仿佛我是一个陌生人。
He’s the best teacher even though he has the least experience. 他尽管经验最少，但教得最好。
4. 两者均可用于省略句，通常见于主句与从句主语相同，且从句谓语含有动词be的情形。如：
Although [Though] (it was) built before the war, the engine is still in perfect order. 尽管是战前制造的，这台发动机仍然处于良好状态。
Although [Though] (he is) still young he is going very grey. 尽管他还年轻他的头发却已变得灰白。
Although [Though] (she was) in pain, she bravely blinked back her tears. 她虽然很疼痛，但还是硬把眼泪抑制住了。
5. 当though用于倒装形式，它不能换成although，但可换成as。
Successful though [as] he is, he is not proud. 他虽然成功，但不骄傲。
Much though [as] I like you, I couldn’t live with you. 我尽管很喜欢你, 却不能和你在一起生活。
Try though [as] I would, I could not make her change her mind. 不管我多努力，也不能让她改变主意。
Surrounded though [as] we were by the enemy, we managed to march forward. 虽然我们被敌人包围着，但我们还是设法前进了。
Raining hard though [as] it is, I’m going out for a walk. 虽然正在下着大雨，我还是要出去散步。
注意，若倒装后置于句首的是名词时，其前习惯上不用冠词或其他限定词。如：
Expert though [as] he was, he failed. 他虽是专家，但还是失败了。
Big puzzle though [as] it was, it hadn’t got the better of Jim. 虽然是个大难题，但仍没有难倒吉姆。
6. 不要按汉语“虽然……但是……”的表达习惯，在 although 后连用 but。如：
虽然他只是个业余爱好者，但却是一流的高手。
误：Although he’s only an amateur, but he’s a first-class player.
正：Although he’s only an amateur, he’s a first-class player.
但是在强调时，although 可与 yet, still 等副词连用。如：
Though he seems happy, yet he is worried. 虽然他看起来很幸福，但他实际上很烦恼。
值得一提的是，在某些特定的语境中，although 与 but 连用的句子是可能的（注：but 引出的句子在 although 从句之前）。如：
But I didn’t know that then, although I learned it later. 但我当时的确不知道此事，尽管后来还是知道了。
He wanted to go abroad, but although he had some money he couldn’t afford it. 他想出国，尽管他有些钱，但还是负担不起。
1. Although he was only grumbling, his choice of words made Rodney angry.
尽管他只是在咕哝，可是他的措词却让罗德妮恼火。
2. Although they're expensive, they last forever and never go out of style.
尽管价格昂贵，但它们经久耐用，永不过时。
3. Although people sometimes buy property sight unseen, it'sa remarkably bad idea.
尽管人们有时没看房就买了房，但这真是一个很糟糕的主意。
4. Although this recipe looks long, it is actually very quick to prepare.
尽管这个菜谱看上去很长，其实做起来很快。
5. I was never really happy there, although the people were kindness itself.
我在那里从来没有真正高兴过，虽然那里的人们非常亲切。
6. Although the coral looks hard, it is very delicate.
珊瑚虽然看上去坚固，实际上非常易碎。