Unit 1 Welcome back to school!

12

Unit 2 My family

22

Unit 3 At the zoo

32

Recycle 1

36

Unit 4 Where is my car?

46

Unit 5 Do you like pears?

56

Unit 6 How many?

66

Recycle 2

70

Appendix 1:Words in each unit

72

Appendix 2:Vocabulary

74

Appendix 3:Useful expressions