I found this while looking for reading comprehension resources:

http://www.learnatest.com/LearningExpressEBooks/download.cfm?b=1576854949&CFID=514&CFTOKEN=e2f0d7ab269f259c-DDFC5B61-E7F2-093F-9DC3CB1D9490026C

If you go to learnatest.com there are a variety of subject areas, some applicable to a high school student some for career such as real estate.