美文赏析

　　Not long ago，self­driving cars seemed like science fiction①.But Google is now operating so­called autonomous② cars in California and Nevada.

　　But one question is getting little attention：should self­driving cars be legal？And if they are，how will the laws of driving have to adapt？At present all our rules about driving are based on having a human behind the wheel③.

　　Car crashes are a leading cause of death for Americans ages 4 to 34.Supporters_believe_that_self­driving_cars_can_make_driving_safer_by_eliminating_distracted(注意力分散的)driving_and_other_human_mistakes.Google's self­

　　driving cars have cameras on the top to look around them and computers to do the driving.In the first 300,000 miles，Google reported that its cars had not had a single acci­dent.

　　As self­driving cars become more common，there will be many new legal questions.If a self­driving car gets into an accident，the human who is“co­piloting(副驾驶)”may not be fully at fault—he may even be an injured party.Who should be responsible for the traffic accident？The human in the self­driving car or the car's manufacturer？New laws will have to be written to sort all this out.

　　How involved are we going to expect the human co­pilot to be？Must the“drivers”remain vigilant④，their hands on the wheel and their eyes on the road？If not，what are they allowed to do inside or outside the car？Can the human in the car drink？Text­message？Read a book?

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