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    When the driver gets sleepy while driving, Driver Alert . A. moves more regularly B. opens the window for the driver C. stops working properly D. sounds more frequently and loudly B 难度: 易 字数:266 words 标准用时:4 minutes 实际用时: Alzheimer's disease is a major national health problem. Nearly 2 million Americans over the age of 65 have Alzheimer's disease. It is a leading cause of death among the elderly. But Alzheimer's disease is not confined to the aged. There may be a million or more people under the age of 65 suffering from the disease. At one time, people suffering from the disease were said to be "getting old". The disease was thought to be a natural part of growing old, but it is now known that Alzheimer's disease strikes young and old alike. It is an organic disease that destroys brain cells. Alzheimer's disease affects the patient's memory, speech, and movement. In the beginning stages of the disease, the patient may seem slightly confused. He may have trouble speaking. Then the patient's memory begins to fail. He may forget dates, telephone numbers, names and plans. As the disease progresses, the patient may not recognize family and friends. These symptoms often cause terrible anxiety in the patient. He may feel lost and frightened. Sometimes the patient reacts with wild and bad behavior. In the last stages of the disease, the patient may not be able to take care of himself. He may have lost the ability to speak and walk. Scientists don't know exactly what causes Alzheimer's disease. It may be caused by a virus. It may be caused by a poisonous substance in the environment. At present, there is no cure for the disease. But there are ways to slow its progress. Exercise and physical treatment can help the patients of this disease. 【查看更多】

     

    题目列表(包括答案和解析)

           A device that stops drivers form 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. 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 makers will bring the product to market within about a year.

    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 form 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 form 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

    查看答案和解析>>

            A device that stops drivers form 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. 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 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 makers will bring the product to market within about a year.

    72.     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 form 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 form 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

    查看答案和解析>>

    A device that stops drivers form 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. 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 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 makers will bring the product to market within about a year.

    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 form sleeping

    D. has been on sale for 12 months  

    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.

    We can learn form 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

         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

    查看答案和解析>>

    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. 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 warms 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 markers will bring the product to market within about a year.

    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

    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.

    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

    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 loudl

    查看答案和解析>>

       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. 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 warms 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 markers will bring the product to market within about a year.

    72. 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

    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 400 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

    查看答案和解析>>


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