Unit 1 Language Lesson 1 Body Language Lesson 2 Different Kinds of English Lesson 3 Language Learning Tips Unit 2 Books Lesson 4 Classics Lesson 5 The Book Club Lesson 6 Tom Sawyer Unit 3 Creativity Lesson 7 A Famous Inventor Lesson 8 Good or Bad Lesson 9 Creative Minds Unit 4 Space Lesson 10 Life in Space Lesson 11 The Amazing Shenzhou Lesson 12 The Spaceship Unit 5 Literature Lesson 13 Anne of Green Gables Lesson 14 The Dark Room Lesson 15 A Famous Writer Unit 6 Role Models Lesson 16 Yao Ming Lesson 17 People in Our Lives Lesson 18 Steve Jobs Unit 7 Journeys Lesson 19 The Silk Road Lesson 20 Life Is a Journey Lesson 21 To the South Pole Unit 8 Discoveries Lesson 22 Famous Discoveries Lesson 23 Discovery of the Year Lesson 24 An Experiment Report Unit 9 Save the Planet Lesson 25 Going Green Lesson 26 Our River Lesson 27 Tree Heroes