Unit One Campus Life
Unit Two Food
Unit Three Shopping
Unit Four Sports
Unit Five Banking
Unit Six Health Care
Unit Seven Education
Unit Eight Entertainment
Unit Nine Traveling
Unit Ten Transportation
Unit Eleven Environment
Unit Twelve TelecommunicatiOn
Unit Thirteen Science&Technology
Unit Fourteen Careers
Unit Fifteen Business
Unit Sixteen Economy
Unit Seventeen Holidays
Unit Eighteen Social Customs
参考译文及练习答案