2024年6月英语四级听力真题原文精选(77)

2024-01-08 08:16:00来源:网络

  众所周知,英语四级听力是对学生听力水平的综合考核,在四级听力考试中,考生需要迅速准确地理解并回答各种语音材料的能力。为培养学生对英语语音、语调的敏感度,新东方在线分享了“2024年6月英语四级听力真题原文精选(77)”,一起来学习吧。

  2024年6月英语四级听力真题原文精选(77)

  News Item 077-新装置为飞行员保驾护航

  Two different physiological(生理的)situations can lead to a pilot’s loss of consciousness, says Elbit Systems senior research and development director, retired fighter pilot Yaron Kranz. “One is G-LOC or G Loss of Consciousness, and the other one is hypoxia(缺氧)which is lack of oxygen to the brain.”

  G-LOC happens during sharp turns and high-speed accelerations, when centrifugal(离心的)force reduces the normal

  flow of blood to the pilot’s brain. At that speed, loss of control of the aircraft proved fata(l 致命的)for many pilots. Hypoxia,

  or lack of oxygen, can affect anyone at high altitudes(高空), which is why passenger planes are equipped with oxygen masks, deployed( 应 用 )in case of loss of cabin pressure. Current devices for preventing these dangerous situations are

  bulky(笨重的)so Elbit Systems and a startup(新兴公司)called Life BEAM developed a system called Canary. It uses small, non-invasive(非侵入的)sensors built into the pilot’s helmet(头盔).

  “The pilot doesn’t have to do anything in order to activate those sensors and they are small enough and wise enough to give the information in order to gather the physiological data that is required.”

  When the danger is imminent(危急的), the system flashes an alert message on the helmet’s visor. If it senses that the pilot has lost consciousness, it signals the plane’s computer to activate the autopilot(自动驾驶).

  以上是新东方在线小编带来的2024年6月英语四级听力真题原文精选(77),希望考生们都能取得出色的成绩。


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