though, although
　　注意： 當(dāng)有though, although時(shí)，后面的從句不能有but，但是 though 和yet可連用
　　Although it's raining, they are still working in the field.　
　　雖然在下雨，但他們?nèi)栽诘乩锔苫睢?br />　　He is very old, but he still works very hard.　
　　雖然他很老，但仍然努力地工作。
　　Though the sore be healed, yet a scar may remain.
　　傷口雖愈合，但傷疤留下了。 （諺語(yǔ)）
　　典型例題
　　1） ___she is young, she knows quite a lot.　
　　A. When　B. However　 C. Although　 D. Unless
　　答案：C。意為雖然她很年輕，卻知道許多。
　　2)　as, though 引導(dǎo)的倒裝句
　　as / though引導(dǎo)的讓步從句必須表語(yǔ)或狀語(yǔ)提前（形容詞、副詞、分詞、實(shí)義動(dòng)詞提前）。
　　Child as /though he was, he knew what was the right thing to do.
　　= Though he was a small child, he knew what was the right thing to do.
　　注意： a.　句首名詞不能帶任何冠詞。
　　b.　句首是實(shí)義動(dòng)詞，其他助動(dòng)詞放在主語(yǔ)后。如果實(shí)義動(dòng)詞有賓語(yǔ)和狀語(yǔ)，隨實(shí)義動(dòng)詞一起放在主語(yǔ)之前。
　　Try hard as he will, he never seems able to do the work satisfactorily.
　　= Though he tries hard, he never seems…
　　雖然他盡了努力，但他的工作總做的不盡人意。
　　3)　ever if, even though.　即使
　　We‘ll make a trip even though the weather is bad.
　　4) whether…or-　 不管……都
　　Whether you believe it or not, it is true.
　　5)　"no matter +疑問(wèn)詞" 或"疑問(wèn)詞+后綴ever"
　　No matter what happened, he would not mind.
　　Whatever happened, he would not mind.
　　替換：no matter what = whatever
　　no matter who = whoever
　　no matter when = whenever
　　no matter where = wherever
　　no matter which = whichever
　　no matter how = however
　　注意：no matter 不能引導(dǎo)主語(yǔ)從句和賓語(yǔ)從句。
　　（錯(cuò)）No matter what you say is of no use now.
　　（對(duì)）Whatever you say is of no use now.
　　你現(xiàn)在說(shuō)什么也沒(méi)用了。(Whatever you say是主語(yǔ)從句)
　　（錯(cuò)）Prisoners have to eat no matter what they're given,
　　（對(duì)）Prisoners have to eat whatever they‘re given.　囚犯?jìng)冎荒芙o什么吃什么。