Unit 1 Which Airline Do You Prefer？ Unit 2 Round-Trip Ticket Unit 3 A Window Seat Unit 4 How Can I Get to the VIP Room？ Unit 5 Security Check Unit 6 Duty-Free Shops Unit 7 Broadcasting Unit 8 On-Board Emergencies 附录1 音标表 附录2 现在分词变化规则 附录3 过去分词变化规则 附录4 不规则动词表 附录5 听力材料 附录6 参考答案
