So, can you prepare for this beast? Yes. And no. Yes: EVERYTHING YOU DO IN CLASS AND OUT REGARDING READING AND WRITING should prepare you. If you no readee, you no preparee. No: there's not a list of material to shore up on and make sure you can recite the plot or the main characters or the...well, anything of. But you should be able read given passage and look for the author's purpose in choosing certain words for tone, thereby establishing mood, etc.
On Friday, I will post a "Study Guide" which recaps the above. If you really want to study for the midterm, I suggest that you revisit our reading selections, Macbeth backwards, and make sure you have closely read the selections.