although conj. 虽然，尽管
though adv. 然而，可是，仍然 conj. 虽然，尽管，即使
两者作为连词时都是引导让步状语从句，有时两者可以通用。although 比较正式，语气稍重，所引导的状语从句常指事实，而不是假设或推测的情况。多用于句首，也可用于句子中间。 though 也可以用在句首或句子中间，所引导的状语从句多表示一种假设或推测的情况。两者都不能与but连用，但可以与still, yet 连用。
Although/Though he is poor he is happy. 尽管他穷，他很快乐。（这里的he is happy 可以用he is still happy, 但不能用 but he is happy)
He is happy although/though he is poor. 尽管他穷，他很快乐。
Although/though he was very sick, he still went to work. 尽管他病的很重，他还是去上班了。
Although/Though it was raining, he went there. 虽然在下着雨，他还是到那里去了。
当让步状语从句表示的是一种假设或推测的情况时，多用though, 而不用althoughWe will go hiking tomorrow though it rains. 即使下雨我们明天也要去徒步旅行。
Though everyone gives up on you, I won't. 即使所有人都放弃你，我也不会。
以下两种情况只能用though, 不能用althougheven though=even if 虽然，尽管
Even though he is poor, he is happy. 尽管他穷，他很快乐。
Even if everyone gives up on you, I won't. 尽管所有人都放弃你，我也不会。
as though 好像
When the policeman came, she cried as though she was the victim. 当警察来的时候，她哭了好像她是受害者一样。
The dog was walking as though it had hurt its leg. 这只狗走路的的样子好像伤了腿似的。
though 可以作为副词独立使用，常放在句末。“然而，可是，仍然”。although 没有副词词性，只能作连词She didn't tell me how she got the promotion, but i know it though. 她没有告诉我怎么得到的升职，但是我还是知道了。
It is a small bag, but it cost a lot, though. 这是一个小包包，然而花了很多钱。
上一课讲的despite, in spite of 和 although, though 都有尽管的意思。despite/in spite of 后面接名词，动名词，代词。而although/though引导的是让步状语从句。Despite/In spite of being very sick, he still went to work. 尽管他病的很重，他还是去上班了。（接名词或动名词）
Although/Though he was very sick, he still went to work. 尽管他病的很重，他还是去上班了。（接让步状语从句）
Although/Though he left her, she still loved him. 尽管他离开了她，她还是爱着他。（接让步状语从句）
Despite/In spite of the fact that he left her, she still loved hime. 尽管他离开了她，她还是爱着他。（不能直接接从句，可接 the fact that 从句）
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