讓步狀語從句是指一個(gè)句子發(fā)生在某一個(gè)時(shí)態(tài)，句子本身就是狀語從句，這個(gè)狀語從句讓了一步給主句，一般翻譯為“盡管…”“即使…”，常與though, while, as搭配。

引導(dǎo)讓步狀語從句的連詞主要有以下這些：though, although, while, as, even if, even though, despite等等。但although不可與but連用。

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1. though, although表示“雖然，縱然”之意, although比though正式，二者都可與yet, still或never,the less連用，但不能與but連用

eg. Although/Though he was exhausted, (still) he kept on working.
　
2. as, though表示“雖然……但是”，“縱使……”之意。as引導(dǎo)的讓步狀語從句必須以部分倒裝的形式出現(xiàn),被倒裝的部分可以是表語、狀語或動(dòng)詞原形?！　?/span>

eg. Object as you may, I’ll go.(=Though/Although you may object, I’ll go.)
　　
3. even if, even though 表示“即使……”,“縱使……”之意, 表示假設(shè)，even if引導(dǎo)的讓步從句含有強(qiáng)烈的假定性,可用來表示與事實(shí)相反的假設(shè),但不能用來描述已經(jīng)發(fā)生的事實(shí).而even though引導(dǎo)讓步狀語從句時(shí),是以從句的內(nèi)容為先決條件的,即說話人肯定了從句的事實(shí),表示已經(jīng)發(fā)生了的事.　

eg. We’ll make a trip even if the weather is bad.

????? We made a trip even though the weather was bad.
　　
4. whether...or...表示“不論是否……”,“不管是……還是……”之意。

eg.?Whether you believe it or not, it's true.

5.“no matter+疑問詞”或“疑問詞-ever”的含義為“……都……；不管……都…"。　　

eg. No matter what happened, he would not mind. (=Whatever happened, he would not mind.)