英语过去分词状语过去分词作定语,高中阶段介绍过和主句主语有被动关系,主句主语承受分词动作.如Given another

Finished his homework,he began to watch TV 这个句子不对吧,应该是Having finished his homework,he began to watch TV.
过去分词作状语其实也就是从状语从句变过来的,比如Given another hour,I can also work out this problem.这句话就是条件状语,If I am given another hour,i can also work out this problem.而另一句Having finished his homework,he began to watch TV.则是时间状语,After he had finished his homework,he began to watch TV.可以发现,从句和主句的主语是一致的,但在分词作状语的句子中主语被省略了,所以表面上看起来是和主句的主语存在主谓关系

应该是having finished his homework, he began to watch TV.用现在完成时的进行时才算对，因为finish是不可延续的瞬时性的动词。

是存在的
分析这类句子，要有还原的思想。例如第一句，这个句子可以还原成，If I am given another hour, I can also work out this problem. 这里存在一个被动的关系 我被给一个小时
而第二个句子，还原成 After finishing his homework, he bagan to watch TV.这里是一个主动的关系 ...