I think when people are struggling with the verbal, the problem is twofold:
1) they don't read/retain material
2) they take too long trying to do a good job with #1, and consequently do poorly on the questions.
Any review course will tell you not to read the whole passage, but rather to skim. The problem I had with skimming was that I would miss details, so I started doing this:
1) Read the first paragraph. Don't skim, read. This is usually going to help you get a grasp on where the passage is going.
2) Only read the first clause of complex sentences. If the sentence contains only one clause, read the first half and forget the rest. If you try to read more, you're taking up time on something that may confuse you. Check this out:
"For years, it was thought that if a cell were removed from tissue, it would continue to divide endlessly, in an essentially immortal fashion. However, closer scrutiny of the experiment which originally promoted this fallacy indicated that it was a preparation technique that perpetuated the cell's life. It was a pair of inquisitive graduate students (Dr. Hayflick being one of them) who discovered that their own cells had actually had a limited number of divisions, around fifty."
Cutting it down:
"For years, it was thought that if a cell were removed from tissue, it would continue to divide endlessly... However, closer scrutiny of the experiment which originally promoted this fallacy... It was a pair of inquisitive graduate students..."
You have isolated the three essential bits of info here, and cut the paragraph in half. Sure, you don't have all the information, but these small bits are easier to remember and importantly, lets you GET ON WITH IT.
I'm taking the test on 10 May too. Hope to see you there.