I've worked with children before,so I know what to expect in my new job.

问题描述:

I've worked with children before,so I know what to expect in my new job.
请分析一下这个句子的成分.
特别是,what to expect,在这里是一个从句吗?

I know what to expect in my new job

== I know what I will expect in my new job