I would add the following to the very good suggestions given above.
Try to determine which 2 or 3 chapters are most important; make sure to read those thoroughly.
For the other chapters, SCAN. This means to look carefully at the title, all subtitles (usually printed in bold or italic letters), the pictures and the captions (the writing underneath or to the side of the pictures). This will help you get the main ideas of these chapters.
If you think that you understand these main ideas well enough, you can stop. If they are unclear to you, then read those particular paragraphs and pages that are necessary. You can leave the rest for some later time.
I agree with luannw, except I would add something more. 28 pages might seem huge if you hate reading. Divide that reading in half, and read 14 pages at a time. Reward yourself for finishing the reading such as "Okay. When I'm done with these 14 pages, I'm going to play video games." Also, since you hate reading, you probably need to find ways to help you stay more foucsed as you read. Try small sticky notes, and question the book as you read. Put these questions on sticky notes on the pages where they come up. This will make your more focused, and it will provide you with good classroom discussion material.
Divide up the task into manageable portions. I suggest you set the goal to read at least 28 pages a day for five days. Twenty-eight pages isn't not much to read in a day. If you read more than that each day then you will finish the task that much sooner.