Grammar: Do exercises 5 and 6 (pages 249-250) in your book. Then study pages 148, 149, 151, 154-156 and do exercise 2 (page 161) in your book.
Reading Handout: Do the "Getting A First Idea About the Article exercise on page 115. Then study the article "Variation in Language" and complete the exercises on pages 118 through the top of page 120.