求分析一句英文（when从句+that从句）
例如：
A major goal of law is not served when the penalty is seldom invoked that it ceases to be a credible threat.
Good men can go bad when money is all that matters.
Did you know when you were doing this that you were making an important statement?
when 从句+that从句.后面的that从句的作用是做状语从句吗?那that从句的主语是?