iimpressedonhimtheimportanceofhiswork...impressed是及物动词,为什么要加on

Question

i impressed on him the importance of his work...impressed 是及物动词,为什么要加on

Answer 1

因为宾语the importance of his work太长了,我们就把on him 提前了.原始句子是：
I impressed the importance of his work that / which he - - - -on him.
--------你看,on him在句子的最後,这样显得不平衡.所以on him提前了,而语法的功能没有改变.-------- impress sth on sb == impress on sb sth that - - - - -(因为sth that - - -- 太长,所以放到後面).