Unit One　Text A: American Meals　Text B: In the Cafeteria　Reading practice: American SchoolUnit Two　Text A: Merry Christmas　Text B: A Long-Distance Call　Reading practice: What's Your Name?Unit Three　Text A: What Will the World Be Like?　Text B: The Post Office Is Closed　Reading practice: Room ServiceUnit Four　Text A: Two Cousim　Text B: Booking a Table　Reading practice: Applying for a JobUnit Five　Text A: A Letter 　Text B: A Delightful Room Reading practice: A Trip to SpainUnit Six Text A: A Birthday Gift Text B. The Room is too Cold Reading practice: Mother Was ConfusedUnit Seven　Text A: A Good Hotel　Text B: Planning a Picnic　Reading practice: At the HotelUnit Eight　Text A: Smell and Sound　Text B: Taking Clothes to the Cleaners　Reading practice: A Roadside RestaurantUnit Nine　Text A: What a Day!　Text B: Too much Noise　Reading practice: The Art to Be PoliteUnit Ten　Text A：Shanghai and Beijing　Text B：The Bill　Reading practice: Who's the Silly Man?Unit Eleven　Text A: Our Basketball Team　Text B: The Barman in Action　Reading practice: In a BarUnit Twelve　Text A: Disney and Mickey Mouse　Text B： Check out　Reading practice: Sir Isaac Newton's EggUnit Thirteen ……Unit FourteenUnit FifteenUnit SixteenVocabulary不规则动词变化表