My memory has developed so much that like an elephant,I neve

so...that是表示“如此……以至于”,这是表示结果的,如：
He ate so much that he couldn't move a bit. 他吃了这么多,以至于动都动不了.
so that连在一起表目的,从句中通常要有个情态动词,如：
I got up half an hour earlier than usual, so that I can catch the first bus. 我早起了半小时,以赶上早班公车.