前辅文
Unit 1 Traveling
Unit 2 Asking for Information
Unit 3 Email and Network
Unit 4 Agreement and Disagreement
Unit 5 Describing Objects
Unit 6 Fellowship
Unit 7 Telephone Calls
Unit 8 Appointment
Unit 9 Going to a Party
Unit 10 Refusal
Unit 11 Opinion
Unit 12 Sports Meet
Unit 13 Price
Unit 14 Talking about TV Programs
Unit 15 Hotel Reservation
Unit 16 Meal Reservation
Unit 17 Meal at Table
Unit 18 How to Learn English Well
Unit 19 Shopping
Unit 20 Planning the Summer Vacation
