Unit 1 School and Friends
Unit 2 Teachers and Students
Unit 3 Class and Subjects
Unit 4 School Life
Unit 5 Parents and Children
Unit 6 Family and Housework
Unit 7 Diet and Health
Unit 8 Our Animals Friends
Unit 9 Festival and Holiday
Unit 10 Rules Around Us
Unit 11 Shopping
Unit 12 Shopping Online
Unit 13 The Famous City in the World
Unit 14 Travelling
Unit 15 The Sports
Unit 16 The Weather and the Climate
Unit 17 The Plants and the Seasons
Unit 18 My Hometown and the Country Life
Unit 19 Information Technology and the Internet Around Us
Unit 20 The Books and Reading
Unit 21 The Safety Around Us
Unit 22 Protect the Environment Around Us
Unit 23 Different Customs in Different Countries
Unit 24 The Famous Person in the World
Unit 25 Traditional Stories
答案与解析
