题目内容

Good morning, Ladies and Gentlemen:Welcome aboard Dragonair Airlines Flight 121 Hong Kong to Paris. Our flight will take about three hours. We will be flying at an altitude of 3473 meters and the average speed is 903 kilometers per hour.In order to ensure the normal operation of aircraft navigation and communication systems, mobile phones, toys and other electronic devices throughout the flight and the laptop computers are not allowed to use during take-off and landing.We will take off immediately, please be seated, fasten your seat belt, and make sure your seat back is straight up, your tray table is closed and your carry-on items are securely stowed in the over-head bin or under the seat in front of you. This is a non-smoking flight; please do not smoke on board.The chief purser Adam Smith with all your crew members will be sincerely at your service. We hope you enjoy the flight! Thank you!This announcement is broadcast before the plane is to (1) .The flight is from (2) to (3) .Passengers are allowed to use laptop computers except when the plane is to take off and (4) .Throughout the flight, (5) and the use of electronic devices are not permitted. 1（）

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