Usually the answer to these questions is nothing you are just wasting your time. But there are a couple things I can say for this case.
1) Get a gauge for your verbal reasoning abilities. Take some practice tests, see where you stand and if you can identify any clear weaknesses. That's by far the best thing you can do.
2) If you really want to take things one step further the new MCAT is heavily based on analyzing and understanding scientific experiments. Read papers, the topic isn't that important although biochemistry and physiology based areas are solid places to start( vague as hell I know). Really critically analyzing these articles and their methodology behind the analysis is the key. This is a skill that can be developed over time to a large extent. Read a paper a day, begin to get a feel for how research is conducted. If you are in a lab, take as active a role as you can and ask questions about the thought process and rationale behind how a study is designed your lab is doing(or other key prominent papers in fields close to what your lab studies) and the reason for it. Doing all this will increase your fluency in this area and increase your comprehension speed and over time as you gain experience you'll be able to get more from an article in a shorter amount of time. Beyond all this, and how it relates to your MCAT performance, being able to understand papers and the logic behind their design, methodology and analysis is vital to any MD or PhD's career.
The key to all this is if you are going to do it to make it as an active a reading process as possible and when necessary ask for the help of others in really understanding what you are reading.