「in order that」主要用於引導目的狀語從句,表示目的或以便,後面跟從句,說明主句行為的目的。例如:
「She studies hard in order that she can pass the exam.」(她努力學習以便能通過考試)
「He got up early in order that he could catch the early bus.」(他早起以便能趕上早班車)
與「in order to」相比,「in order to」後面直接跟動詞原形,引導目的狀語,不構成從句。例如:
「I get up early in order to catch the early bus.」(為了能趕上早班車,我早起)
此外,「in order that」和「in order to」都可以與「so as to」互換,但「so as to」更常用於非正式文體中。