The Poseidon Effect Late one autumn day at the local

游客2023-10-20  32

问题                         The Poseidon Effect
    Late one autumn day at the local swimming pool in Ancenis, France, an 18-year-old named Jean-Francois LeRoy came for his regular evening swim in the 25-metre pool.

    When people are drowning, they don’t usually shout and splash in the way it happens on television. Most people drown quite silently, with the person quickly sinking beneath the water. On this evening, LeRoy was testing how far he could swim underwater on one breath. At some moment, as he was doing this, he became unconscious. He sank to the bottom of the pool. LeRoy was drowning.
    Luckily for him, the swimming pool was installed with an electronic surveillance(监控)system called Poseidon. Although the human lifeguards had not noticed, 12 large machine eyes deep underwater were watching the whole thing. Poseidon has underwater cameras which film people as they swim. The cameras are connected to a computer. It is programmed to recognize when a swimmer is not moving normally. The lifeguards at the Ancenis pool were wearing a special device that beeped when the computer detected a possible problem. Sixteen seconds after Poseidon noticed LeRoy’s body, the lifeguards had pulled him out of the pool. He started breathing again. After one night in the local hospital, he was sent home completely well. Poseidon had saved his life.
    Machines like Poseidon completely change how we live. Think of your life before the answering machine was invented. Think of your grandparents’ lives before the television and the airplane were introduced. The change will be just as great. It is already happening.
    Soon, machines will recognize our faces and our fingerprints. They will watch out for drowning people, for terrorists carrying bombs, for speeding drivers and heart patients. Imagine devices that monitor a baby’s breathing and track children as they go to and from school. Imagine machines sending quiet signals to nearby computers, which will send information to your doctor, your lawyer, and the local police. As time passes, more and more of our lives will be monitored by machines. They will know all about us.
Questions 66 -70
Answer the following questions according to the passage. [br] What are the underwater cameras used for?

选项

答案 They are used for recognizing whether a swimmer is moving normally or not.

解析 (文章第三段第五句提到“It is programmed to recognize when a swimmer is moving or not.”由此可知,水下摄像机被用来识别游泳者是否正常移动。)
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