much as 与much though在引导让步状语从句的时候有什么区别?可以相互替换吗?

much
as
和
much
though
其实是把much提到了as
和though的前面
构成的倒装结构。
比如Though
he
is
clever=
clever
as/though
he
is
Though
he
is
a
boy
=
boy
as/though
he
is
Though
he
can
eat
much
=
much
as/
though
he
can
eat
两个结构意思一样，可以互换。

扩展阅读：rather than ... whom is known ... as much as14 hours ... even though ... nevertheless ... no less than ... as much as you can ... as much as eagerly ... though much ...