Rather than trying to skip, try to improve as much as you can. Enough practice will make you feel more confident. Go thru the sticky's in the Verbal forum
on tips for RC's. That should be helpful.
In both my attempts at taking GMAT, if I remember right, I got 4 RC's. On both cases, back to back RC's from Q's 3 to 10. So it's better to be prepared to face them!