Grammar Structures and Expressions Vocabulary (Ⅱ) Vocabulary (Ⅰ) Pronunciation UNIT 8 Summer Holiday Is Coming! UNIT 7 Sports and Good Health UNIT 6 Seasons UNIT 5 I Love Learning English! UNIT 4 After-School Activities UNIT 3 School Life UNIT 2 It's Show Time! UNIT 1 A Trip to the Silk Road