Unit 1 Welcome back to school! Part A Part B Part C 单元知识总结 Unit 2 My family Part A Part B Part C 单元知识总结 Unit 3 At the zoo Part A Part B Part C 单元知识总结 Recycle 1 Unit 4 Where is my car? Part A Part B Part C 单元知识总结 Unit 5 Do you like pears? Part A Part B Part C 单元知识总结 Unit 6 How many? Part A Part B Part C 单元知识总结 Recycle 2
