上册(单周)：
Unit 1 My school subjects.
Unit 3 The Weather Band
Unit 5 My robot helper
Unit 7 This is the house where we live.
Unit 9 Shall we go camping next year?
Unit 11 What's it made of ?
Unit 13 Christmas fun
Unit 15 How to ask questions
下册(单周)：
Unit 1 What's your favourite season?
Unit 3 What are you good at?
Unit 5 Maths problems
Unit 7 What did you do last weekend?
Unit 9 It's going to rain, isn't it?
Unit 11 Will you come to our English party?
Unit 13 Our beautiful environment
Unit 15 Yesterday, today and tomorrow
上册(双周)：
Unit 2 Happy birthday!
Unit 4 How far is it from Xidan to Wangfujing Street?.
Unit 6 What's it like?
Unit 8 Time went by quickly!
Unit 10 Have you ever been to a science museum?
Unit 12 Going for gold
Unit 14 We love to play games.
Unit 16 When I grow up
下册(双周)：
Unit 2 Being happy all year round
Unit 4 Let's go for a walk.
Unit 6 How tall are you?
Unit 8 Science makes our life easy!
Unit 10 Guess: What was happening at about 1:30 yesterday afternoon?
Unit 12 Always something interesting and nice to remember
Unit 14 Everything is fun.
Unit 16 What's going to happen next?
