Most of us are neither pilots nor astronauts. We are not trained to steer large hulks of steel and gasoline while manipulating s

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问题     Most of us are neither pilots nor astronauts. We are not trained to steer large hulks of steel and gasoline while manipulating small computers. So there’s something blindingly obvious about the risks of texting while driving. Yet research is beginning to show that driving while simply talking on a cell phone — including using hands-free technology — can prove dangerous, even deadly.
    In late July, the Center for Auto Safety released hundreds of pages of a study that identified the cell phone as a serious safety hazard when used on the road. And though it’s impossible to accurately calculate how many car accidents nationwide are cell phone related, David Strayer, a psychology professor at the University of Utah, estimates that only 2% of people are able to safely multitask while driving.
    Strayer, who for more than a decade has been studying the effects driving and cell-phone use have on the brain, says those 2% are probably the same people who would be really good fighter pilots. Rarities. Some of Strayer’s other findings show that most drivers tend to stare straight ahead while using a cell phone and are less influenced by peripheral vision. In other words, "cell phones," he says, "make you blind to your own bad driving."
    And even though the common assumption is that hands-free technology has reduced the more dangerous side effects of cell-phone use, a series of tests conducted by Strayer seems to indicate the opposite. A passenger acted as another set of eyes for the driver in the test and even stopped or started talking depending on the difficulty of conditions outside the car. Meanwhile, half the drivers talking on a hands-free phone failed, bypassing the rest area the test had called for them to stop at.
    Part of the problem may be that when people direct their attention to sound, the visual capacity of their brain decreases, says Steven Yantis, a professor of psychological and brain sciences at Johns Hopkins University. It can be as if a driver is seeing the image in her head of the person she is talking to, thereby decreasing her ability to see what’s actually in front of her.
Steven Yantis is most likely to agree that______.

选项 A、sound can weaken people’s eyesight
B、sound can distract people from vision
C、sound is necessary for the formation of visual image
D、sound is incompatible with visual ability of the brain

答案B

解析 事实细节题。根据题干中的Steven Yantis将答案出处定位于第五段。该段提到Steven Yantis说,部分问题可能是当人们把注意力集中在声音上时,大脑的视觉能力减弱,就像司机在交谈时,脑中会浮现出他们所交谈对象的形象,因而关注眼前真实事物的能力便降低了。[B]项是对原文的同义转述,故为答案。声音只是分散了大脑处理视觉的能力,并不是使人的实际视力减弱了,故排除[A]项;[C]项文中未提及,故排除;[D]项属于对原文的过度推断,声音只是影响大脑的视觉能力,二者并非不相容,故排除。
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