I teach a 4th grade class where the majority of students read at a low 3rd grade level. The best way to get these guys to read is to assign a book and have them read one chapter a night for homework. I send home one page of questions to go with the chapter. I usually photocopy math practice for the other side of the paper. (Over the weekend, I will usually assign multiple chapters and no math).
Since this is homework, I try to ask questions that are easy for them to find the answer in the book, often giving them the page number.
In order to help the students make connections with the story and become interested in reading the book, I usually introduce new books with a book trailer and video clips that relate to the story.
Included in this paid download is a page of ideas to show/research/discuss before reading the book and the pages of comprehension questions (with answer key) for chapters 1-10. There is also a page of ideas for after reading the book. You will have an editable copy (.docx) as well as .pdf format. If you are not sure if this "one page per chapter" format will work for your class, I invite you to download the free version first, which contains comprehension questions for chapters 1-4 as well as the page of before-reading ideas.
Link to free version: