文档介绍：as引导的让步状语从句
he might, he couldn't get out of the difficulty.  A. when   B where   C till    D. as 尽管他很尽力，但仍未能摆脱困境。 , he doesn't study well.  A. As he is clever                   B. he is as clever  C. Clever as he is                  D. As clever he is 总结： 句型：1.（零冠词）+单数可数名词+as +主语+be + 其他成分     Child as he is , he knows a lot.
、过去分词+as +主语+ be+其它成分   Surrounded as we were by enemy, we managed to match forward.   虽然我们被敌人包围了，我们还是设法前进。   Young as he is, he is quite experienced in the work. +as +主语+谓语动词+其它成分    Many times as she had failed, she didn't give up her plan. +as +主语+助动词、情态动词+其它成分   Fail as I did, I would try again.
注：当状语从句的主语是名词时，一般要全部倒装 Difficult as was the task, it was finished in time. Dark as was the night , he still found his way to my home.
谢谢！