I've often wondered, after spending 80+ hours in classrooms BEFORE student teaching, how grad students can be put in charge of classes with little or no training to prepare them. I know that one of my friends is doing that as a first year Master's student, but he at least spent three years tutoring and is used to teaching a little. I feel really sorry for this poor girl, and if I lived anywhere nearby, I'd offer to help her a little. I think the best thing you can do is try to be as respectful as you can in class (maybe make a point of asking her some softball questions that you're sure you already know the answers to) so you can build her confidence. In the end, though, some people just have presence and some just lack it, and it's a very hard thing to teach.
She really doesn't leave any openings to be respectful OR disrespectful in class - she just comes in, without so much as a "hi, guys" starts taking the roll, and immediately launches into a lecture which goes on without pause until she says "okay it's six forty five, you can go" at which point she picks up her chalk and heads out the door.
There's really no sense of forum at ALL in the class itself, and I'm a little hesitant to force a conversational opening to tell her she's doing her job poorly. Seems like a rather risky idea for myself, as somebody who's going to be depending on a killer GPA to hopefully get merit-based scholarships once my GI Bill runs out, which will be all too soon.
Don't confront her in class in front of everyone. That'll just make you look like some dickhead non-trad trying to impress everyone with how much more grown-up he is than the teacher. Schedule a time to see her in her office, or maybe after class when everyone's left.
OR you could just bite the bullet for the semester and then rip her at the end of the term when the evaluations are done. I did that to my BIO 101 lecture prof. and he was gone the next year. I couldn't possibly have been the only one to vent frustrations. He tore into a couple girls for talking during class, saying that one of the reasons to attend uni is to develop job skills, and that their future bosses probably wouldn't like them talking when they're supposed to be working. He couldn't run the lecture room's projectors for shit, and was always about five frames behind with his powerpoint presentations.
The point being, you are the customer. If you're not happy with the product you're recieving, you need to tell the teacher about it. If you get no satisfaction from her, take it up with her department head. That's how they learn to be better teachers.