Key to Unit 6 Business TravelLead-inI.1. F 2. E 3. B 4. A5. H 6.D 7. C 8.GII.1.B 2.G 3.H 4.I 5.D 6.E 7.A 8.C 9. F 10. JReadingReading 11. T 2. F 3.T 4.F 5.TReading 21.T 2. F 3.T 4.F 5.TPractical ExercisesSection 1 I. 1. suitcase 2.flight 3. board 4. vacation 5. restaurants 6. aspect 7. department 8. souvenirs 9.colleagues 10. novelty II. 1. if it is possible to arrange shopping for us2. keep in touch with you.3. that your stay in Beijing is a pleasant one.4. the matter of the schedule, 5. a copy of the itinerary we have worked out 6. your flight for domestic flights7. all your identification is valid8. for new documents to be prepared.9. be able to use automatic check-in facilities10. at thefirmsexpenseIII. 1. in. 2. for 3. to 4. in 5. on . up 6.to 7. for 8. in 9. to 10. toIV. 1. A 2. B 3. C 4. C 5. C 6. B 7. C 8. A 9. B 10. CV. 1. 航空大酒店是您商务旅游及会议的最佳选择。2. 你可以把商务旅行和休假结合起来。3. 根据你的目的地，你可能需要为自己安排一些住宿。4. 如果你在国际旅行，你需要在离开前获得签证。5. 有一个行程表是最简单的方法，确保你能按日程旅行。6. 别忘了记下你的航班的登机和起飞时间。7. 如果你在国内出差，可能不需要护照。8. 即使在国内航班上，你也需要一个有效的，国家签发的身份证。9. 没有正确的身份证明可能会耽误甚至完全阻止你的旅行。10. 压缩商务旅行可能会对企业盈利造成很大的负面影响。Section 2 I.Listening 11. A 2. A 3. C 4. B 5. A 6. B 7. A 8. A 9. B 10. BII. Listening 2: Dialogue（1）jet lag, a long flight, Sleep, lucky, time differences.Dialogue（2）Have a good flight, Smoking or non-smoking, aisle seat, luggage, suitcase scales, boarding cardDialogue（3）Journey, a little souvenir, Very successful, paid for, manageWriting Task1. I am writing to acknowledge your letter on March 1st .2. Thank youvery much for your compliments.3. during your visit to our factory. 4. have this opportunity to show you our office and factory.5. am looking forward to meeting you next time.