题目

Questions 11 through 13 are based on the following passage. Good morning, ladies and gentlemen. Welcome aboard Air China Flight CA 4117 Chengdu to Beijing via Xi'an. The distance between Chengdu and Beijing is 13,982 kilometres. Our flight will take 3 hours and 35 minutes. We will be flying at the altitude of 10,000 metres and the average speed is 800 kilometres per hour. In order to ensure the normal operation of aircraft navigation and communication systems, passengers are not allowed to use laptop computers and other electronic devices throughout the flight and during takeoff and landing. We will take off soon. Please make sure that your seat belt is securely fastened and that you refrain from smoking during the flight. We will now demonstrate how to use the emergency equipment. Your oxygen mask is above your head. It will drop down automatically in case of emergency. When it does so, pull the mask firmly towards you to start the flow of oxygen. Place the mask over your nose and mouth and slip the elastic band over your head. On our flight today, the chief person with all your crew members will be sincerely at your service. We hope you will enjoy your flight. Thank you. Now listen again please. Good morning, ladies and gentlemen. Welcome aboard Air China Flight CA 4117 Chengdu to Beijing via Xi'an. The distance between Chengdu and Beijing is 13,982 kilometres. Our flight will take 3 hours and 35 minutes. We will be flying at the altitude of 10,000 metres and the average speed is 800 kilometres per hour. In order to ensure the normal operation of aircraft navigation and communication systems, passengers are not allowed to use laptop computers and other electronic devices throughout the flight and during takeoff and landing. We will take off soon. Please make sure that your seat belt is securely fastened and that you refrain from smoking during the flight. We will now demonstrate how to use the emergency equipment. Your oxygen mask is above your head. It will drop down automatically in case of emergency. When it does so, pull the mask firmly towards you to start the flow of oxygen. Place the mask over your nose and mouth and slip the elastic band over your head. On our flight today, the chief person with all your crew members will be sincerely at your service. We hope you will enjoy your flight. Thank you. Questions 11. Who is the announcement intended for? （1） A . Flight attendants. B . Airline passengers. C . The fire brigade. D . Plane manufacturers. （2） A . The average speed of CA4117 is 800 miles per hour. B . It will take CA4117 more than three hours to arrive in Xi'an. C . CA4117 will take off from Chengdu and eventually arrive in Beijing. D . CA4117 will travel 13,892 kilometers for the whole flight. （3） A . Using electronic devices during landing. B . Using their hands to pull the oxygen mask. C . Using laptop computers during the flight. D . Placing the oxygen mask below their nose. 答案： B C D

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