UNIT 1 PART Ⅰ Communication SKills I'd Like to Reserve a Room PART Ⅱ Text A Taking a Taxi in the United States PART Ⅲ Text B Varieties of Introductions PART Ⅳ Writing Work Leaving a Message UNIT 2 PART Ⅰ Communication Skills Where Is the Flight to Los Angele. PART Ⅱ Text A New Year's Customs PART Ⅲ Text B Preparing for a Conversation PART Ⅳ Writing Work Making an Appointment UNIT 3 PART Ⅰ Communication SKills Is This the Train to Boston? PART Ⅱ Text A China to Push Economic Growth PART Ⅲ Text B Business Gift Giving in the UlS PART Ⅳ Writing Work Asking for Leave UNIT 4 PART Ⅰ Communication Skills How Can I Get My Checks? PART Ⅱ Text A Mother's Day …… UNIT 5 UNIT 6 UNIT 7 UNIT 8 UNIT 9 UNIT 10 UNIT 11 UNIT 12 UNIT 13 UNIT 14 UNIT 15 UNIT 16 UNIT 17 UNIT 18 UNIT 19 UNIT 20