so that的用法I work so hard that I happy.这句话里面,主语是：I谓语：work?wor

so that
1．in order that以便
*Bring it nearer so that I may see it better．拿近一些,好让我看得更清楚些.
*He saved up his money so that he might go abroad for his summer holiday．他把钱积蓄起来,以便暑期能出国度假.
*Let's get ready now so that we can leave when Father comes．我们现在就准备好,等父亲一来我们就可以走了.
2． with the result that以致于George often told stories that weren't true,so that no one believed him when he told ahout a deer in the school yard．乔治经常讲些不真实的故事,因此当他说校园里有只鹿时,没人相信他的话.
*He injured his foot,so that he was unable to play in the match．他脚扭伤了,无法出场比赛.
so… that
如此…以致（一般表示结果）
*He has done so much in so short a time that almost everyone thinks that it is a miracle．他在这么短的时间里取得了这么大的成就,几乎每个人都认为这是奇迹.
*He was so ill that he couldn't go to school today．他病得很厉害,今天无法上学.
*The generation growing up with TV spend so much of their time in front of TV that they hardly have enough time to study．伴随着电视机长大的一代人在电视机前花的时间太多,没有足够的时间用来学习.

so 是程度副词修饰副词hard，work是动词，hard是副词修饰动词work，so...that 引导结果状语从句

so 用来修饰后面的那个hard