目的状语从句

* You must speak louder in order that you can be heard by all. 为了让大家都能听清楚，你一定要说大声一点。
* I came to the class early so that I could see the classmate beside me. 我赶早来上课，以便早点看到我旁边的同学。
* I want to expand your point of view so you can see something. 我想拓宽你们的视野以便你们看清一些东西。

【高中以上】
* Take care of yourself lest you catch cold. 好好照顾你自己，以免受凉。
* He walked fast for fear that he should be late. 他快走，以免迟到。
* I shall ring you up in case you should forget to come. 我应该给你打电话，以免你忘记来。