引导让步状语从句的连词主要有以下这些：though,although,as; even if,even though; whether...or...; no matter+疑问词,疑问词-ever.下面对这些连词引导的让步状语从句作一说明.（1）though,although表示“虽然,纵然”之意.这两个连词意思大致相同,在一般情况下可以互换使用.在口语中,though较常使用,although比though正式,二者都可与yet,still或nevertheless连用,但不能与but连用.例如：Though/Though he was worn out,(still) he kept on working.虽然他已经精疲力竭了,但仍然继续工作.Although/Though he is very old,(yet)he is quite strong.他虽然年纪大了,身体还很健壮.值得注意的是,although引导的让步状语从句位于主句之前的情况较多,though引导的让步状语从句可位于主句之前或主句之后.例如：She passed the examination though she had not studied very hard.她虽然不用功学习,考试却及格了.（2）as,though表示“虽然……但是”,“纵使……”之意.as引导的让步状语从句必须以部分倒装的形式出现,被倒装的部分可以是表语、状语或动词原形,though间或也用于这样的结构中,但although不可以这样用.例如：Object as you may,I " ll go.(=Though/Although you may object,I " ll go.) 纵使你反对,我也要去.Hard as/ though he works,he makes little progress.(=Though he works hard,he makes little progress.)尽管他学习很努力,但几乎没取得什么进步.Child as/though he was,he knew what was the right thing to do.（=Though he was a child,he knew what was the right thing to do.）虽然他是一个孩子,但他知道该做什么.Fast as you read,you can " t finish the book so soon.纵然你读得快,你也不能这么快读完这本书.补充：特别提醒 1.no matter what（who,which,when,etc.）与whatever（whoever,whichever,whenever,etc.）的区别：当引导 让步状语从句 时,两者相同,可以互换,但当引导 名词性从句 （ 主语从句 ,宾语从句 ,表语从句 和同 谓语 从句 ）时则只能用whatever（whoever,whichever,whenever,etc）.如上面最后两个例句可改为：e．g． However pure the water looks,I do not want to drink it.I want to marry the man I love,no matter who he may be.下面句字不能用no matter结构:Whoever comes back firs is supposed to win the prize.(主语从句) I am ready to do whatever you want me to .（宾语从句） 例证：Ｗhatever you did,I will accept.为让步状语从句.I will except whatever you did.为宾语从句.补充：2.as 引导 让步状语从句 的用法：引导让步状语从句时,as意为“虽然,尽管”,通常 从句 要 倒装 ,倒装的方法是将从句的 表语 或 状语 放在as之前,而用though引导让步状语从句时句字则不必倒装（口语中也可倒装）.e.g.Heavily as it was raining outside,they started out very early.Young as he is,he knows a lot=Though he is young 或Young though he is,he….他虽然年轻,但懂得很多.(though 也有这种用法,可以替换as,但although没有这种用法) though还可以用作副词,放在句末.如：It was hard work;; I enjoyed it,though=It was hard work,but I enjoyed it.那工作很苦,但是我喜欢干.3.用though/although,as 引导让步状语从句时,句中不能用but表示转折语气.不能说：Though he looks weak,but he is healthy.而要说：Though he looks weak,he is healthy.或者说：He looks weak,but he is healthy.补充：可以具体给出个例子吗?我看不大懂你所要表达的意思
