概要：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 4
高考英语不同体裁文章的阅读方法-说明文,标签：英语复习方法,高中英语学习方法,http://www.85jc.comDriver 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 laboratories for testing. If these tests, scheduled for six months’ time, are successful, the markets will bring the product to market within about a year.
解析：这篇代章说明Driver Alert这一驾驶员警报装置。抓住了它的工作原理、功能作用就抓住了它的本质特点。3、4、5自然段是理解的重点：开车时驾驶员腕带上的警报会每隔4分钟发出声音，驾驶员听到声音按压方向盘作出反应。传感器会探测到从听到声音到作出反应之间的时间差，如果这个时间差大于500毫秒，说明驾驶员疲劳打瞌睡。了解了这个装置的特点，就读懂了这篇代章。看看理解题：
72．According to the text, Driver Alert _____. www.85jc.com
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
73．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.
74．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
75．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
（参考答案：ADCD）
【实战演练练习十九】（05辽宁卷 D篇）
While income worry is a rather common problem of the aged, loneliness is another problem that aged parents may face. Of all the reasons that explain their loneliness, a large geographical distance between parents and their children is the major one. This phenomenon（现象）is commonly known as “Empty Nest Syndrome”（空巢综合症）.
In order to seek better chances outside their countries, many young people have gone abroad, leaving their parents behind with no clear idea of when they will return home. Their parents spend countless lonely days and nights, taking care of themselves, in the hope that someday their children will come back to stay with them. The fact that most of these young people have gone to Europeanized or Americanized societies makes it unlikely that they will hold as tightly to the value of duty as they would have if they had not left their countries. Whatever the case, it has been noted that the values they hold do not necessarily match what they actually do. This geographical and cultural distance also prevents the grown-up children from providing response（回应）in time for their aged parents living by themselves.
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