高中语法 ,分词用作状语和独立主格的转换?

　　Having been told many times, he still repeated the same mistake. (让步) 如果把以上句子的从句换成Though he had been told many times,对不对? 上面那个句子是独立主格吗?为什么要用现在分词完成时的被动语态呢? 如果用-ing是表主动,那么having been done 主动体现在哪里?