CR Problems...

<p>I'm a rising junior and I'm taking the official SAT in October. I'm having severe issues with the CR section.
I've taken many many practice tests and these are my highest and lowest my scores:</p>

<p>CR: 640
M: 740
W: 790
(2170)</p>

<p>CR: 600
M: 670
W: 770
(2040)</p>

<p>I'm trying for schools like Duke, which is my top choice right now. But with these scores it seems like I don't have a chance. My math shouldn't be a problem because I just made completely stupid mistakes.</p>

<p>But with my CR, I just can't seem to get above a 640...I usually seem to misinterpret the main idea of the entire passage so I answer a ton of questions wrong because I think the passage is about something it isn't. And I always infer something from the passage that isn't stated.
Any tips? I'm looking for anything that can help me in the next couple weeks. Thank you.</p>