Question

阅读理解： 　　A device that stops drivers from falling asleep at fine 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．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 take 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 1aboatories 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) According to the text, Driver Alert ________． [　　] A． aims to reduce tiredness－related accidents B． has gone through testing at laboratories C． aims to prevent drivers from sleeping D． has been on sale for 12 months (2) How should a driver respond to the sounds from Driver Alert? [　　] A． By sounding a warning． B． By touching the wristband． C． By checking the driving time． D． By pressing the steering wheel． (3) We can learn from the text that the driver needs to stop for a break when his response time is ________ [　　] A． about 400 milliseconds B． below 500 milliseconds C． over 500 milliseconds D． about 4 minutes (4) When the driver gets sleepy while driving, Driver Alert ________． [　　] A． moves more regularly B． stops working properly C． opens the window for the driver D． sounds more frequently and loudly

Answer 1

答案：1．A;2．D;3．C;4．D;
解析：

(1)	推理题。从第二段的第一句话可知。
(2)	猜词题。第三段中指出这种装置在旅途中每4分钟发出一种声音，在每个声音过后司机必须通过挤压方向盘来做出回应。
(3)	细节题。从第四段的第二句可知。
(4)	细节题。从第五段的大意可知。即：如果司机的回复继续减慢，此装置会更频繁地提示，直到司机尽快地停车。

提示：

本文介绍的是一种叫Driver Alert的装置正处在检测阶段并将在一年内投入市场。这种装置的目的是减少司机在驾车过程中由疲劳所引起的交通事故。其方法是：通过车辆在行驶时每4分钟发出一种声音而使司机必须及时做出反应的方法来阻止司机睡着。如果没有及时得到司机所做出的回应，它将会更频繁更大声的提示，直到司机打开窗户或停下来休息。