BERKELEY, Calif. – 5 grand, 15 grand, 50 grand – you get what you pay for in a car. But a sweet ride doesn’t guarantee a safe ride.
“The primary problem is the driver,” says Jim Misener, a transportation safety researcher at University of California.
What if cars could pick up signals that could save your life, know when to stop, know when there’s been an accident, and even know when it’s safe to turn? Sounds far out, but the new cars are closer than you may think.
Making the driver more alert (警惕的) is what researchers at UC Berkeley are doing by using the latest WiFi technology. “Cars talking to one another, the environment or the roadside talking and listening to cars,” says Misener.
The new cars are combining with smart roads. Transmitters (传导物) along the road beam up wireless signals to a receiver on the car. An alert flashes inside the car.
Basically it measures the interaction (交互作用) between all road users at that particular crossroads. As a car approaches, the screen on a smart car’s dashboard flashes a red arrow when it’s not safe to turn. A warning arrow also appears on a sign alongside the road. This same system is used to warn a driver when it’s not safe to enter a crossroads.
Car companies are working to apply systems like this in their new cars. They also hope to be able to use these systems to notify drivers of contract or recall needs.
“All we’re doing is informing or alerting or warning the driver. The driver is still responsible,” says Misener. But now, thanks to the research, drivers will have more help to get them where they’re going safely.

72. Which of the following takes responsibility for a safe ride according to this text?
A. The car. B. The crossroads
C. The driver. D. The walkers.
73. From the third paragraph, we know that the new car is _________.
A. large B. smart C. comfortable D. expensive
74. What does the underlined “guarantee” in the first paragraph mean?
A. Prevent. B. Allow. C. Promise. D. Ensure.
75. On the whole, we can say the passage above is __________.
A. science fiction B. a road introduction
C. a piece of news D. a short interview

加利福尼亚，伯克利。5000美金，15000美金， 50000美金，你要为开车的行为付出代价，但是一段甜蜜的乘驾并不能保证安全的乘驾。
“主要问题在于司机，”加利福尼亚大学交通安全研究员Jim Misener说到。
如果车辆可以接收挽救你性命的信号会怎么样呢，它知道何时该停车，出了交通事故它也会知道，甚至知道何时拐弯才安全。听上去有些前卫，但这样的新车离我们要比你想象的近很多。
加利福尼亚大学的研究人员们运用最新的WiFi技术所做的就是要提高司机的警惕性。Misener说：“车辆们相互交谈，交通环境和大路都可以与车辆交谈并听从车辆的指挥”。
新型车辆与智能道路相结合，公路上的传导物可以向车内的接收器发出无线电信号，车内就会亮起警报。
从基本上来说，它能够测量在特定的交叉路口上，道路使用者的交互情况。当有车接近时，在不能安全转弯的情况下，智能汽车仪表板的屏幕上就会闪起红色的箭头，道路上的显示器也会亮起警告箭头，这一同样的方法也用于警告进入不安全交叉路口的司机。
车辆公司也在为他们的新车安装这一系统，他们还希望能够使用这一系统来提醒司机签订或取消合同。
“我们所做的这些都是为了通知，提醒，或警告司机，司机仍负有责任。”Misener说，但是现在，感谢这些研究，使司机在安全驾驶上得到了更多的帮助。

按照此文章，谁应该对安全驾驶负责？
A. 车辆 B. 十字路口 C. 驾驶员 D. 行人
选 C

从第三段我们可以了解，新车是：
A. 很大的 B. 智能的 C. 舒适的 D. 昂贵的
选B

第一段中下划线的"guarantee"是何意：
A. 保护 B. 允许 C. 承诺 D. 确保
选D

从整体上来看，人们可以知道这篇文章是一篇：
A. 科幻文章B. 道路介绍 C. 一条新闻 D. 简短的采访
选D