1、意思上的区别
in order that和in that的意思都是‘为了，以便’。
2、用法上的区别
in that后面接动词，是简单句。
in order that后面加的是从句，是状语从句。
3、短语上的区别
①、in that
in that：为了 为了做 表目的 为了做到。
In order to learn：为了学习 以学习。
②、in order that
in order that clause：为了。
in order that the：以便。
In order for that day：为了那一天。
4、例句
①、in that area
In that to ensure success we must have a complete and thorough plan.
为了保证成功，我们必须要有一个周密的计划。
In that to transform their environment， he drew up the project with painstaking accuracy.
为了改造环境，他苦心孤诣地制订了这个计划。
②、in order that
We only married in order that the child should be legitimate.
我们结婚纯粹是为了给孩子一个合法身份。
They flew there in order that they might be in time to attend the opening ceremony.
他们飞往那里以便能及时参加开幕典礼。
