Barron's Painless Reading Comprehension, Reading a book I am not interested in

I am working with this book to help with reading comprehension.  I am reading the book to my homeschool student and it looks successful.
There is a book, I have no desire to read.  It is the Hunger Games.  We are reading it in school when the assigned work is finished.  The student thought I would read it to him.  We are reading it every other sentence.  I take one sentence and he reads the next one.  Why should I do all the work, when he wants to read the book.  This way he has to read if he wants to hear the book.  Also, he is encouraged to read for pleasure.