每周一听——那些年我们一起练过的听力（第172期）

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每周一听——那些年我们一起练过的听力（第172期）

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由于无法上传视频，只能麻烦大家下载音频了，不好意思   

     In 2004 U.S.    (1)    research agency DARPA challenged automotive engineers to try to build a self-driving car. Though the course had only simple    (2)    and no other traffic, none of the vehicles reached the end.
      Twelve years later the technology has advanced so far that manufacturers are testing it on roads with real traffic, trying to make it absolutely safe for both passengers and    (3)    .
“I figured if I was able to make a car that was smart enough to drive itself, I could probably make a car that was smart enough to be a bit safer. So from my perspective, safety has always been our    (4)    ,"
      Google admits that its experimental self-driving cars have had some close calls, but points out that in late 2014    (5)    happened once every 1,300 kilometers, while last year they happened once every 8,500 kilometers.
      it's not just about the safety, manufacturers also have to make sure consumers are willing to let go of the wheel.
     “We don't want to go too far too fast because the customer may not be expecting that. There's a learning    (6)    that has to take place,"
       One thing that can help customers get used to not being in control is the driving    (7)    . Wearing virtual reality goggles drivers can experience the sensation of being driven.
Some cars are already equipped with electronics stemming from the DARPA Grand Challenge, such as laser proximity    (8)    , video cameras, lane-change warning lights and other devices.
      Researchers say future cars will also be able to communicate with the world around them, such as pedestrians’    (9)    .
      “We can see where that pedestrian is walking, and then we can actually pick them up if they walk out in front of the car, and the car will choose to stop,"
        Experts say that safe and    (10)    self-driving cars should be available to the average consumer within four to five years.
上期答案
1 bowl
2 sloppy
3 fluid
4 cheeks
5 suction
6 curled
7 momentum
8 filmed
9 breeds
10structured

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• 172.mp3

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