1.2 million road deaths worldwide occur each year, plus a further 50 million injuries. To reduce car crash rate, much research now is focused on safety and new fuels, though some electric vehicle and biofuel research aims at going faster. Traveling at speed has always been dangerous. One advanced area of research in motoring safety is the use of digital in-car assistants. They can ensure you don't miss important road signs or fall asleep. Most crashes result from human and not mechanical faults. Some safety developments aim to improve your vision. Radar can spot obstacles in fog, while other technology "sees through" big vehicles blocking your view. And improvements to seat belts, pedal (脚踏)controls and tires are making driving smoother and safer. The color of a car has been found to be linked with safety, as have, less surprisingly, size and shape. But whatever is in the fuel tank, you don't want a thief in the driving seat and there have been many innovations(创新). Satellite tracking and remote communications can also come into play if you crash, automatically calling for help. Accidents cause many traffic jams, but there are more subtle interplays between vehicles that can cause jams even on a clear but busy road. Such jams can be analyzed using statistical tools. Robotic drivers could be programmed to make traffic flow smoothly and will perhaps one day be everyone's personal chauffeur(司机) , but their latest efforts suggest that won't be soon.
单选题
To reduce car crash rate, many scientists are working hard to______. A. design fully automatic cars B. develop faster electric vehicles C. analyze road deaths occurring worldwide each year D. improve the safety of cars and develop new fuels
单选题
According to the second paragraph, most road accidents happen due to______. A. heavy traffic B. human mistakes C. engine failure D. bad weather
【正确答案】
B
【答案解析】[解析] 问题问“根据第2段，大多数车祸发生是因为……”，利用问题句中的修饰词most作为答案线索，这样在文章中找到答案相关句(该段最后一句句子)Most crashes(与most road accidents呼应)result from(由……而产生)human and not mechanical(机械的)faults(错误，故障)该句说大多数的撞车事故造成的原因是人为的错误而不是机械故障，因此B是答案。
单选题
Which of the following safety developments is NOT mentioned in the passage? A. Windscreens that can help drivers to improve their vision. B. Radars that can help drivers to see obstacles in fog. C. Devices that can help drivers to see through big vehicles. D. Improvements in seat belts, pedal controls and tires.
【正确答案】
A
【答案解析】[解析] 问题问“下列哪项安全技术在段落中没有被提到?”关注被选项，被选项中均涉及到细节信息，因此分别利用被选项中的细节信息词作为答案线索(A：windscreens；B：radar；C：devices to see through big vehicles；D：seat belt, pedal controls，tires)，在文章中查找与被选项分别形成呼应的句子，这样在文章中找到答案相关句。选项B、C、D在文章中都有呼应的信息，只有A没有呼应的信息(A中的windscreens)，因此A是答案。
单选题
Satellite tracking and remote communication systems can be used to______. A. reduce oil consumption B. remove the obstacles on the road C. call for help when one's car crashes D. help drivers get out of a traffic jam
单选题
Which of the following statements is true of robotic drivers? A. It will take some time before robotic drivers are available. B. Robotic drivers are not allowed to driveon busy roads. C. Robotic drivers can never replace human drivers. D. Robotic drivers are too expensive to use.