解析：选D　细节理解题。根据Be Prepared部分可知，A、B、C三项都是作者建议我们需要做的，而D项"变换车道"出现在Dealing With Traffic部分，并且是作者反对的做法，故选择D项。

　　2．"Rush hour" gets its name because ________.

　　A．cars run faster during the time

　　B．cars run slowly during the time

　　C．people go to some place in a hurry

　　D．people walk more slowly than usual

　　解析：选C　细节理解题。根据"Rush hour isn't just a cute nickname."一段可知，人们之所以把交通高峰称为"rush hour"，是因为上路的人都急于赶往某个地方。故C项正确。

　　3．What should you do to pay attention to zig­zaggers?

　　A．Keep checking your mirrors.

　　B．Keep watching back windows.

　　C．Drive slowly to let them in.

　　D．Drive quickly to keep them out.

　　解析：选A　细节理解题。根据"Pay extra attention to zig­zaggers."一段可知，作者建议我们通过不断查看车窗和后视镜来密切关注抢道的司机。故选择A项。

　　4．What does the underlined word "courteous" in the last paragraph mean?

　　A．Calm.　　　　　　 　B．Polite.

　　C．Careful. D．Patient.

　　解析：选B　词义猜测题。由于"Be courteous."是文章最后一段的标题，而本段主要讲述驾车的礼貌问题，因此判断courteous一词在这里意为"有礼貌的"。故B项正确。

　　B

　　You've probably never heard of Dr. June McCarroll, but she's truly a woman who left her mark on the world. Born in Nebraska, she was a general practitioner who lived in California. Interestingly enough, her fame lies outside the world of medicine. An accident got her thinking about making our highways safer. Her car was sideswiped (擦边)，and she determined to do something about cars that crowded others off the road.

　　Driving on a road that bulged (突起) down its center，Dr. McCarroll noticed that the bulge helped to keep motorists on their own side of the road. That gave her an idea. She tried persuading the local government to "paint a line down the middle of the road" to set an example and "lead the nation in public safety."

She got the typical bureaucratic (官僚的) response. However, she was someone who would not take no for an answer. So she took her idea to the local women's club. The vote