I've never taught high school but this sight has all kinds of interventions for reading that include high school. I have heard the MAZE assessment is good for targeting oral and comp. skills. I believe the passage the students are asked to read have every 4th or 5th word omitted. I hope these links help.
http://www.interventioncentral.org/
http://www.interventioncentral.org/t...-comprehension
https://www.nsbsd.org/cms/lib01/AK01...ORE%20MAZE.pdf