语法问题I am writing this letter to draw your attention to the m

语法问题
I am writing this letter to draw your attention to the matter in the hope that the
present situation will be much improved.请问这里的in the hope that the present situation will be much improved在这个句子里是做什么成份呀？我怎么觉得从in the hope that又是一个句子呀？谢谢！