一、從詞性上看
1.用作連詞,表示“雖然”,兩者大致同義,可換用,只是 although 比 though 更為正式.如：
Though [Although] it was raining,we went there.雖然下著雨,但我們還是去了那兒.
2.although 一般不用作副詞,而 though 可用作副詞,且一般放在句末(不放在句首),意為“可是”、“不過”.如：
It’s hard work; I enjoy it though.工作很辛苦,可是我樂意干.
這樣用的 though 有時(shí)可與 however 換用.如：
We all tried our best.We lost the game,though [however].我們都已盡了最大的力量,但我們還是輸了.
二、從用法上看
1.在 as though(好像,仿佛),even though(即使,縱然) 等固定短語中不能用 although.如：
He talks as though he knew anything.他夸夸其談好像無所不知.
2.though 引導(dǎo)的讓步狀語從句可用部分倒裝的形式(注意：倒裝后位于句首的名詞之前不用冠詞),但 although 一般不這樣用.如：
Poor though I am,I can afford it.我雖窮,但這東西還是買得起的.
Child though he was,he did quite well.他雖是孩子,但干得很好.