单选题 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.

单选题 The passage is intended for emphasizing the safety issue on______.

【正确答案】 D

【答案解析】解析：主旨大意题。文章第一段即点明主旨：研究显示边开车边使用手机通话，即使使用了免提技术也是危险的，甚至是致命的。由此可知本文意在强调开车的安全问题，故答案为[D]项。第一段前两句说我们大部分人都不是飞行员或宇航员，不能边操作电脑边驾驶飞机或飞船，指的是我们大部分人都不能多任务操作，[A]项和[B]项是利用这两句设置的无关干扰，故排除；本文主要是讲使用手机影响开车安全，所以主题是开车的安全问题，而不是使用手机的安全问题，故排除[C]项。

单选题 According to David Strayer, a good fighter pilot must be good at______.

【正确答案】 B

【答案解析】解析：事实细节题。根据题干中的Darid Strayer和a good fighter pilot将答案出处定位于第三段第一句。该句提到，说那2％的人可能就和能成为优秀战斗机飞行员的是一批人。其中those 2％指代的是上一段末提到的能在开车的同时安全地进行多任务操作的人。由此可知，一名优秀的战斗机飞行员一定擅长多任务操作，故答案为[B]项。其他三项都不是Strayer提到的战斗机飞行员的必备素质，故排除。

单选题 As it is mentioned in the passage, the drivers talking on the cell phone tend to______.

单选题 In Strayer's tests, the drivers were required to______.

【正确答案】 A

【答案解析】解析：事实细节题。根据题干中的Strayer's tests将答案出处定位于第四段。该段提到，在测试中，半数使用手机免提功能通话的司机未通过测试，他们绕过了测试要求他们停靠的休息区。由此可知，测试要求司机停靠在某个休息区，故答案为[A]项。[B]项是未通过测试的司机的错误做法，故排除；[C]项文中未提及，故排除；[D]项是利用第四段第二句中stopped or started talking depending on the difficulty of conditions…设置的无关干扰，故排除。

单选题 Steven Yantis is most likely to agree that______.

【正确答案】 B

【答案解析】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。