2. 外语
  3. Certain portable electronic devices(PEDs)may interfere with aircraft navigational equipment. PED use is permitted while on the g

Certain portable electronic devices(PEDs)may interfere with aircraft navigational equipment. PED use is permitted while on the g

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问题    Certain portable electronic devices(PEDs)may interfere with aircraft navigational equipment. PED use is permitted while on the ground when the boarding door is open, and in flight when advised by crew members. About 10 minutes before departure, passengers will be asked to turn off computers, cell phones and other PEDs. The following PEDs are approved for use during the flight time:
   - Personal Computers
   - Handheld computer games
   - Personal stereo and video devices
   Medical devices are permitted at all times while TVs. radios, two-way radios, remote-control devices and some other electronic devices are not permitted. Due to safety concerns, the crew may at any time request that PEDs be turned off.
   Cell phones may be used only in the following instances:
   - When the aircraft is at the gate and the boarding door is open.
   - When the aircraft is on the ground away from the gate and the captain has approved their use.
What is the possible bad effect of using a PED on an aircraft in flight? The aircraft navigational equipment may be______.
选项
答案interfered with
解析 本题考查在飞机飞行时使用移动电子设备可能造成的不良影响。根据线索词aircraft navigational equipment和may定位到原文第一段第一句。题干将定位句的宾语变成了主语，句子从原来的主动句变成了被动句，因此空格处需要填入动词的过去分词形式，构成被动语态，即interfered with。注意interfered后的with必须保留。
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