Question

【題目】

Have you ever seen a car without a driver? It sounds crazy, but these computer-driven driverless cars will soon be filling roads near you. Companies like Google and Tesla have been designing and testing these cars, and the technology is there-they just need to see if they're value for money ,work out insurance（保險）issues, and run final tests to check they can run alongside human-driven cars on the road.

So how do they work? The cars have sensors all around which can detect other cars and obstacles in the road. Sensors on the wheels also help when parking, so the car knows how far it is from the outside of the road or other parked cars. Road signs are read by cameras and satellite navigation systems are used so the car knows how to get to your destination. All you have to do is type in the address! Finally, a central computer system takes in all the information it receives from the sensors and cameras and processes this to work out when to speed up, brake and go.

Sound like your idea of heaven? Sitting back, looking out of the windows and even watching a film or reading a book while 'driving' would be possible with this new technology. You wouldn't have to worry about remembering directions to where you're going. In addition, computers are generally more efficient drivers than humans. They would also drive more safely than people-they are not influenced by music or friends, they would obey the speed limit and they have quicker reaction times in case of an emergency.

However, there are many disadvantages of driverless cars. Computers would have difficulties making ethical（倫理學(xué)的）decisions ; if a child ran into the road , would the computer choose to hit the child or change the direction immediately and potentially kill the car's passengers? Moreover, I personally find driving fun-I'd miss never being behind the wheel myself. There would also be many legal decisions to be made-should children, or drunk people, be allowed in a driverless car by themselves? Or would there need to be a responsible adult with a driving licence in the car at all times?

Although being driven around by a machine would perhaps mean that no one needs a driving licence, saving money for everyone, many people would be put out of a job when driverless cars appear. Bus, taxi and train drivers as well as driving instructors would be made unnecessary.

I'm not convinced I'd want a driverless car-but it's only a matter of time before they'll become more affordable and commonplace on our roads.

【1】What does the second paragraph mainly tell us?

A.How driverless cars work.B.How a central computer system runs.

C.Ways in which the sensors help driverless cars.D.The helpful system that driverless cars have.

【2】What can we know from the passage?

A.The writer is eager to have a driverless car.

B.Some problems won't be solved in the future.

C.Engineers are active in improving driverless cars.

D.More factors should be considered before driverless cars go on roads.

【3】The underlined word "potentially" in Paragraph 4 means “___”

A.possiblyB.successfullyC.especiallyD.naturally

【4】Which of the following would be the best title for the passage?

A.Driverless Cars: Are You Ready for Them?B.Driverless Cars: Are They Your Favorite?

C.Driverless Cars: A Model of New TechnologyD.Driverless Cars: Just Enjoy Them

Answer 1

【答案】

【1】A

【2】D

【3】A

【4】A

【解析】

文章大意：文章介紹的無人駕駛汽車的工作原理及優(yōu)缺點。

【1】主旨大意題。通讀第二段，此段圍繞著第二段第一行So how do they work?無人駕駛是怎么工作的。故選A。

【2】推理判斷題。根據(jù)最后一段第一、二行I'm not convinced I'd want a driverless car-but it's only a matter of time before they'll become more affordable and commonplace on our roads.“我不相信我會想要一輛無人駕駛的汽車，但在我們的道路上，它們變得更加便宜和普通只是時間問題。”可知A、B項錯誤，C項文章沒有提及，根據(jù)第四段第一、二行However, there are many disadvantages of driverless cars. Computers would have difficulties making ethical（倫理學(xué)的）decisions 可知無人駕駛汽車有一定的弊端，所以無人駕駛汽車上路之前，許多因素都應(yīng)該被考慮，故答案選D。

【3】詞義推斷題。根據(jù)文章第四段第二行if a child ran into the road，would the computer choose to hit the child or turn suddenly and potentially kill the car's passengers？“如果一個孩子跑到馬路上，電腦會選擇撞到孩子還是突然轉(zhuǎn)向，____會殺死車上的乘客？”并結(jié)合選項可知，這里應(yīng)說電腦會選擇撞到孩子還是突然轉(zhuǎn)向，可能會殺死車上的乘客？所以potentially意為可能。故選A。

【4】主旨大意題。短文介紹了無人駕駛車只需要人們輸入要去的地址，具體的介紹了它的優(yōu)點和缺點。故最佳標(biāo)題為“無人駕駛：你準(zhǔn)備好它們了嗎？”故選A。