这是as(though)的倒装用法
名词/副词/形容词/动词+as(though)+主语+谓语
副词置于句首。如:
Much as I like it (=Although I like it very much), I will not buy it.
动词原形置于句首。如�Wait as you may(=Although you may wait), he will not see you.
形容词或名词置于句首。注意:如果表语是名词,则要省掉冠词,如:
Proud as the nobles are (=Although the nobles are proud), they are afraid to see me.
Child as he is (=Although he is a child), he can tell right from wrong.
希望你有所收获!
as 表示尽管,虽然时要到装。
1。应用陈述语句,排除C
2。结合语意,应有“虽然(即使)他是个孩子”,故为D