问题详情：
Have you ever seen a car without a driver? It sounds crazy, but these computerdriven cars will soon be __1__ roads near you. Companies like Google and Tesla have been designing and __2__ these cars.
So how do they work? The cars have sensors all around which can __3__ other cars and __4__ on the road. Road signs are read by __5__， and satellite navigation systems are used so the car knows how to get to your __6__. All you have to do is type in the address! Finally, a central computer system takes in all the __7__ it receives from the sensors and cameras and processes this to work out when to __8__， brake and steer on the road.
__9__ like your idea of heaven? Sitting back, looking out __10__ the windows or reading a book while “driving” would be __11__ with this new technology. You wouldn't have to worry about remembering __12__ to where you're going. In addition, computers would also drive more __13__ than people—they don't get distracted by music or friends, and they have quicker reaction time in case of a(n) __14__.
However, there are many __15__ of driverless cars. I personally find driving fun—I'd miss being behind the wheel myself. There would also be many __16__ decisions to be made—should children, or drunk people, be allowed in a driverless car by themselves? __17__， many people would be put out of work with the __18__ of driverless cars.
I'm not __19__ I'd want a driverless car—but it's only a matter of time __20__ they'll become more affordable and commonplace on our roads.
1．ring B．filling
C．damaging D．paving
2．ng out B．carrying out
C．ruling out D．figuring out
3． B．explore
C．approach D．detect
4．ers B．systems
C．obstacles D．objects
5．ors B．cameras
C．wheels D．computers
6．ination B．attraction
C．organization D．institution
7． B．advice
C．knowledge D．information
8． B．accelerate
C．sail D．cycle
9．d B．Look
C．Smell D．Taste
10． B．over
C．of D．into
11．lenging B．troublesome
C．practical D．potential
12．ructions B．directions
C．conditions D．motivations
13．ctively B．smartly
C．smoothly D．safely
14．gency B．accident
C．event D．fire
15．ntages B．drawbacks
C．functions D．applications
16．nical B．athletic
C．cultural D．legal
17．ver B．Therefore
C．Besides D．Anyhow
18． B．popularity
C．disappearance D．invention
19．ghted B．touched
C．annoyed D．convinced
20．re B．after
C．since D．while
【回答】
篇章导读：本文是一篇议论文，论述了无人驾驶汽车的利与弊。
1.B 不久，无人驾驶汽车将填满你周围的路面。fill在此意为“填满”。
2.A 动词短语try out在此意为“测试”，符合文意。carry out “执行，实施”；rule out “排除……的可能*”；figure out “弄明白，计算出”。
3.D 这些感应器能探测出路面上其他的车辆和障碍物。
4.C 名词obstacle是“障碍物”之意，符合文意。
5.B 后面一句“a central computer system takes in all the ... it receives from the sensors and cameras”有提示。故安装在车上的摄像头能读出道路标志。
6.A 使用卫星*系统让你的汽车知道怎样到达目的地。
7.D 中心电脑系统接收它从传感器和摄像头收到的所有信息。
8.B 只有accelerate(加速)与汽车驾驶动作有关。
9.A 听起来是再好不过的事情了吧？此处表示“听起来”，故选A。
10.C 动词短语look out of是“向外看”之意，符合文意。
11.D 形容词potential在此是“可能的”意思，符合文意，故选D。
12.B 你不必担心要记住去目的地的路径。direction在此指“方向”，故选B。
13.D 后面提到电脑驾驶汽车不会分心，故无人驾驶汽车会更安全。safely “安全”，符合文意。
14.A 出现紧急情况时，无人驾驶汽车的反应时间更快。emergency “紧急情况”，故选A。
15.B 本段主要讲无人驾驶汽车存在的问题，故drawback(缺点)符合文意，故选B。
16.D 后面所举例子“小孩或酒醉的人是否能单独乘坐无人驾驶汽车？”属于法律法规问题，故选D。
17.C 此处进一步指出无人驾驶汽车带来的弊端，前后句存在递进关系，故选C。
18.B 随着无人驾驶汽车的普及，很多人会失业。popularity “普及”，故选B。
19.D “我”不确信“我”是否需要无人驾驶汽车。convinced “确信”，符合文意。
20.A but表示语意转折，虽然我不确信自己会不会需要无人驾驶汽车，但无人驾驶汽车的普及只是一个时间问题。before意为“在……之前”，符合文意。
知识点：科普环保类
题型：完型填空
