in order that和so that的区别I sent the parcel dy express that morning______my mom received it that afternoon.填哪个呢?为什么.还有别忘了告诉我这2个词组的区别...我搞的要晕掉了...

IN ORDER THAT 为了...
譬如:He works hard in order that he may succeed.
他为求成功而拚命工作。
所以你这句话也应该填 IN ORDER THAT ,他为了他妈妈能下午收到所以早上寄出包裹.
so that引导目的状语从句时，表示“以便；为了”，从句中常使用can /could /may /might /will /would /should等情态动词或助动词；引导结果状语从句时，从句中一般不用can和may等词，在so that前可以用逗号，意思是“因此;所以”。
例句：
1、The little boy saved every coin so that he could buy his mother a present on Mother's day.（引导结果状语从句）
2、She bought a digital camera online so that she would save a lot of time. （引导目的状语从句）
这个解释应该能另你满意吧?

只有in order to 没有in order that in order to do sth.表示为了做某事
so that 后跟从句，表示因此……
I sent the parcel by express that morning so that my mom received it that afternoon
我今天早上用快递把包裹寄出去了因此我妈妈今天下午收到了。
应该能明白了吧。。

so that
因为
in order to 是 为了
so that 是 以便

填 IN ORDER THAT
IN ORDER THAT表目的
SO THAT表结果