"Oh, come now; you mustn't think us such fools as all that. We happen to know that you came away with a woman."

请教老师：

1）

这里是think sb as sth 结构吗？

以前只看到think of sb as sth结构，没看到有think as as sth。

这2个结构用法含义有什么不同呢？

2）如何理解as all that ? all that 什么意思呢？