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A device that stops drivers from falling...

A device that stops drivers from falling asleep at the wheel is about to undergo testing at Department of Transport laboratories and could go on sale within 12 months.

The system, called Driver Alert, aims to reduce deadly road accidents by 20%—40% that are caused by tiredness. Airline pilots can also use it to reduce the 30% of all pilot-error accidents that are related to fatigue.

Driver Alert is based on a computerized wristband (腕带). The device, worn by drivers or pilots gives out a sound about every four minutes during a car journey. After each sound the driver must respond by squeezing the steering wheel (方向盘). A sensor in the wristband detects this pressing action and measures the time between the sound and the driver’s response.

Tiredness is directly related to a driver’s response time. Usually, a watchful driver would use about 400 milliseconds to respond, but once that falls to more than 500 milliseconds, it suggests that the driver is getting sleepy.

In such cases the device gives out more regular and louder sounds, showing that the driver should open a window or stop for a rest. If the driver’s response continues to slow down, the sounds become more frequent until a nonstop alarm warns that the driver must stop as soon as possible.

The device has been delivered to the department’s laboratories for testing. If these tests, scheduled for six months’ time, are successful, the makers will bring the product to market within about a year.

1.Driver Alert is a device that can       .

A. keep drivers asleep

B. change drivers’ response accuracy

C. reduce the possibility of accidents

D. protect drivers when accidents happen

2.What does the underlined word “fatigue” in Paragraph 2 mean?

A. Illness.    B. Tiredness.

C. Carelessness.    D. Impoliteness.

3.How does Driver Alert work?

A. By being used as a nonstop alarm all the time.

B. By squeezing the steering wheel on the way,

C. By reminding or warning drivers if necessary.

D. By being worn on drivers’ hands every moment.

4.What do we know about Driver Alert?

A. It must be fixed on the driver’s cars.

B. It aims to prevent drivers from sleeping.

C. It has gone through testing at laboratories.

D. It isn’t available to drivers at the moment

 

1.C 2.B 3.C 4.D 【解析】本文介绍了一个旨在于减少由于司机疲劳驾驶而导致事故的装置Driver Alert,详细说明了它的工作原理和具体作用。 1.C 细节题。根据文章第二段1,2行The system, called Driver Alert, aims to reduce deadly road accidents by 20% - 40% that are caused by tiredness.可知这项装置旨在于减少由于疲惫而导致的事故。故C正确。 2.B 词义猜测题。根据第二段第一句The system, called Driver Alert, aims to reduce deadly road accidents by 20%—40% that are caused by tiredness.再根据下句的accidents that are related to fatigue.可知划线词指的是“tiredness",故选B。 3.C 细节题。根据文章第三段前3行The device, worn by drivers or pilots, gives out a sound about every four minutes during a car journey. After each sound the driver must respond by squeezing the steering wheel.可知C项正确。 4.D 推理判断题。根据最后一段中If these tests, scheduled for six months’ time, are successful, the makers will bring the product to market within about a year.可知现在司机还不可以使用。故选D。 【名师点睛】 本文介绍了一个旨在于减少由于司机疲劳驾驶而导致事故的装置Driver Alert。本文细节题居多,答题时在文章找到对应的地方,用笔进行标记,这有利于后期有时间检查时可以立刻找到答案的位置。仔细理解作者所讲的意思,再结合选项,通过排除法和自己对全文的把握,选出正确答案。
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Joy Mangano was 33 and divorced. She had three kids under age 7, and was hardly keeping up payments on her small two-bedroom home by working extra hours as a waitress. “There were times when I would lie in bed and think. I don’t know how I’m going to pay that bill,” Mangano says.

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A. Mangano’s small home.

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A. Special.    B. Normal.

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4.What can we learn from the text?

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J. D. Salinger: A Life by Kenneth Slawenski (Random House, $ 27)

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