Unit l Say Hello to People Unit 2 Introducing Oneself Unit 3 Providing Information(Ⅰ) Unit 4 Telephone Unit 5 Providing Information(Ⅱ) Unit 6 Reservation Unit 7 Traveling and Vacation Unit 8 At the Airport Unit 9 Travel by Train Unit l0 Go Shopping Unit 11 How to Save While Buying Unit l2 I Hope to Buy Something Special Unit l3 Talking About Education Unit l4 Your Resume Unit l5 I want to Further My Study Abroad Unit l6 Job Hunting Unit l7 Tourist Information Unit l8 Traveling in China Unit l9 Welcome! Unit 20 Asking the Way Indoors Unit 21 Asking the Way Outdoors Unit 22 My Hometown Vocabulary 練習(xí)答案