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高三概要写作In the popular imagination the rise of

时间:2019-02-27 21:52  作者:Edmond  来源:www.2abc8.com

 In the popular imagination, the rise of self-driving cars will mean greener cities, saferroads, and happier workers. With technology, speeding, braking, and reaccelerating -whichare responsible for much of the gas burned on roads, today and the resulting air pollution-would be a memory. But despite these opportunities, there are certain reasons why driverlessvehicles may fail to live up to some of these expectations, or at least take a little while longerto achieve them.
First, truly automated technology - at least the kind that requires no humaninvolvement -is rare in every sector of the economy, and there’s little reason to thinkdriving will be any different. There is a permanent need for a human backup incaseiving, that means human drivers will still bear the finalresponsibility for the cars they're riding in.
A related challenge-particularly for driverless cars-is the complexity of the systemsinvolved. For example, some cars today require over 100 million lines of software code (代码) to keep them running More code means more functions, which, to some degree, alsomeans more opportunities for software errors. Driverless cars raise a challenge in this regard and possibly cause more opportunities for errors- errors that can lead to accidents.
Yet the greatest challenge facing driverless cars isn't technological, but psychological. Surveys consistently reveal global skepticism about the technology. Americans, for example,remain more worried than excited by driverless cars. Over half of the American public says itwould not ride one given the opportunity. This shows a deep-seated lack of trust in thetechnology. Similar ideas have been expressed worldwide.
What's more likely is that human drivers will continue applying some control over theircars, regardless of how automated those cars are. Some may quarrel with this idea. Butautomakers have long been preparing for it. Just ask Nissan, Waymo, and Zoo, all of whichare exploring ways for human drivers to retake control of a car should automation fail. Inother words, driverless does not-and will not-mean humanless.

概要写作
Contrary to people's vision of a better city life, self-driving cars are on the road tonowhere. First, like auto-machines in other fields, driverless cars are literally not completelyindependent of humans. Besides, demanding complicated technology, such cars can be athreat if a possible error occurs. Trust issues for humanless cars, however, remains a majorconcern. That's why automakers are seeking waysto allow drivers more control on theirvehicles. (71 words)

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