My recommendation on how to approach this text is: Read in three stages. First read the passages I've listed under "Stage One." Do your best to understand them, and look at adjacent passages if you like (sometimes they will help), but don't worry if everything isn't clear yet. Next read the passages I've listed under "Stage Two," including re-reading all of the Stage One passages. "Stage Three," finally, is reading the whole text‹including all of the previous material. I don't expect all of you to complete Stage Three.
Complete Text
Stage One
1a1, 7
1b8
2a6
6a7, 8
7a4
7b1, 31
Stage Two
1a complete
1b complete
2a2, 6
3a3, 4, 5
4a20
4b7, 12, 19
5a5
5b9
6a complete
7a1-5
7b1, 31
Stage Three