连词有：in order that, so that, in case, for fear that

　　①in order that"为了;以便"。多用于正式文体，通常可以与so that换用。如：

　　You stopped at Hangzhou _____________ they could go around the West Lake.

　　他们在杭州停了下来，以便游览西湖。

　　The expert spoke slowly _________________________________________________.

　　专家讲得很慢，以便人人听得懂。

　　注意：in order to与so as to 也表示"为了，以便于"，但是后面只能接单词或短语，不能接句子，且so as to一般位于主句后，可与so that/ in order that进行同义句转换

　　He studies hard _____________ he can get good marks.

　　= _______________________________________________________________.

　　She gets up early ______________ get there on time.

　　= ______________________________________________________________.

　　= ______________________________________________________________.

　　②in case意思是"以免","以防",多用于英国英语，它所引导的从句中的谓语动词可以是陈述语气形式，也可以是虚拟语气形式;

　　Take your umbrella in case it rains.

　　带上你的伞，以防下雨。

　　He took an umbrella with him for fear that it might rain.

　　他带了一把伞，以防下雨。