as引导让步状语从句

1。adj.+as+主语+系动词be

eg:

Young as he is,he knows a lot of things.

Hard as steel is, it will bend or break under the action of a strong force.

2.n.( 不带冠词）+ as+主语+ 系动词be

注意的是：

在此句形中，句首的单数可数名词前不用冠词！

eg:

King as he is,he is unhappy.

Scientist as she is,she wants to learn more.

3.adv.+as+主语+动词

eg:

Much as I like it,I won't buy it.

Fast as you run,you can't catch up with him

4.V+as+主语+助动词

eg:

Try as she does,she will never pass it.

Search as they would, they could find no sign of the boy.