Unit 1 Who is this?
Unit 2 Can you swim?
Unit 3 Let's travel
Unit 4 How to Cook
Unit 5 What is fashion?
Unit 6 Health is important
Unit 7 Hobbies
Unit 8 Are you studying?
Unit 9 How to make an appointment
Unit 10 Old tales
Unit 11 Harry Potter
Unit 12 Animals are the treasure of the earth
References （参考文献）
