分析一个句子

问题描述:

分析一个句子
The hardworking blacksmith Jones used to work all day in his shop and so hard working was he that he was thought highly of.
重点是and之后的半句,那个so hard working was he是什么语法现象呢?

he was so hard working that he was thought highly of.
so.that.句型,强调部分so hard working提前,所以主谓倒装