remain awake while driving back"可知，Wu的母亲为了防止意外发生，一路上不断地跟Wu的父亲说话以使其保持清醒，故选A。

　　2．What is the purpose of "Driver's Companion"？

　　A．To show drivers the way.

　　B．To prevent drunk driving.

　　C．To improve driving skills.

　　D．To help drivers stay awake.

　　解析：选D　细节理解题。由第三段中的"'Driver's Companion'， can notice driver sleepiness and warn the driver if he or she is too tired to be on the road"可知，"司机伙伴"能够让司机保持清醒，故选D。

　　3．Which of the following shows how Driver's Companion works?

　　A．Sleepiness→Headset→Warnings→Computer

　　B．Sleepiness→Warnings→Headset→Computer

　　C．Sleepiness→Headset→Computer→Warnings

　　D．Sleepiness→Computer→Headset→Warnings

　　解析：选C　细节理解题。由第四段中的相关内容可知，C项正确描述了"司机伙伴"的工作顺序。

　　4．Wu advises other young students ________.

　　A．to enjoy their lives

　　B．to learn to love science

　　C．not to do dangerous jobs

　　D．not to give up what they love

　　解析：选D　细节理解题。由最后一段中的"they should choose something they're interested in"和最后一句可知，Wu建议其他学生要敢于选择自己感兴趣的事情并且坚持做下去，故选D。

　　B

　　About three decades ago, China was known as the "Bicycle Kingdom"．But the two­wheeled transport's popularity began to fade, with many bikes soon replaced by their fuel­powered competitors.

But recent months have seen a renaissance of the bike across China, with an increasing number of people choosing cycling instead of driving to schools, to