英语语法知识要点

引导目的状语从句的从属连词有so(以便), that(以便), so that(以便，为了), in order that (为了，以便);in case(以防，以免), lest(免得，以防), for fear that(以免，惟恐)等。从句中一般含有can, could, may, might, will, would等情态动词。如：

Bring it closer so (that) I can see it better. 拿近一点以便我看得更清楚。

Let’s take the front seats that we may see more clearly. 咱们坐前排，以便看得清楚点。

I left at 6:00 so that/in order that I could catch the train. 为了赶上火车，我六点就出门了。

I shall write down your telephone number that I may not forget. 我要把你的电话号码写下，以免忘了。

Take the raincoat in case it rains. 带着雨衣,以防下雨。

Be careful lest you fall from that tree. 要当心, 以免从树上摔下来。

He walked fast for fear that he should be late. 他走得很快，以免迟到。

注：当从句主语与主句主语相同时，可用不定式来表达相同的意思。如：

译：为了通过考试，他学习非常努力。

正：He studies very hard so that(=in order that) he can pass the exam.