编写说明 Unit1 People and School Unit2 Relax! Unit3 Problems in the Neighborhood Unit4 Time Cards and Paychecks Unit5 Shape Up! Unit6 Bargain Hunting Unit7 Home,Sweet Home Unit8 Using the Library Unit9 You‘re Hired! Unit10 Getting Around:Public and Private Transportation Appendixes 1 Vocabulary 2 Vocabulary Index 3 Grammatical Terms 4 Common Coparative and Superlative Adjestives