Unit 1 What's this in English? Lesson 1 Lesson 2 Lesson 3 Lesson 4 Lesson 5 Lesson 6 Unit 2 What color is it? Lesson 7 Lesson 8 Lesson 9 Lesson 10 Lesson 11 Lesson 12 Unit 3 May I come in? Lesson 13 Lesson 14 Lesson 15 Lesson 16 Lesson 17 Lesson 18 General Revision Words and Expressions