首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Many countries have made it illegal to talk into a hand-held mobile phone while driving. But the latest research provides furthe
Many countries have made it illegal to talk into a hand-held mobile phone while driving. But the latest research provides furthe
admin
2013-09-04
36
问题
Many countries have made it illegal to talk into a hand-held mobile phone while driving. But the latest research provides further confirmation that the danger lies less in what a motorist’s hands do when he takes a call than in what the conversation does to his brain. Even using a "hands-free" device can impair a driver’s attention to an alarming extent.
Melina Kunar of the University of Warwick and Todd Horowitz of the Harvard Medical School ran a series of experiments in which two groups of volunteers had to pay attention and respond to a series of moving tasks on a computer screen that were reckoned equivalent in difficulty to driving. One group was left undistracted while the other had to engage in a conversation about their hobbies using a speakerphone. As Dr. Kunar and Dr. Horowitz report in Psychonomic Bulletin & Review, those who were making the equivalent of a hands-free call had an average reaction time 212 milliseconds slower than those who were not. That, they calculate, would add 5.7 meters to the braking distance of a car traveling at 100 kph. They found that the group using the hands-free kit made 83 percent more errors in their tasks than those who were not talking.
They also explored the effect of simply listening to something—such as a radio programme. For this they played a recording of the first chapter of Bram Stoker’s "Dracula." Even though the test subjects were told to pay attention because they would be asked questions about the story afterwards, it had little effect on their reaction time. The research led by Frank Drews of the University of Utah suggests the same thing is true of the idle chatter of a passenger. Dr. Kunar reckons that having to think about responses during a phone conversation competes for the brain’s resources in a way that listening to a monologue does not.
Punishing people for using hand-held gadgets while driving is difficult enough, even though they can be seen from outside the car. Stopping people making hands-free calls would probably be impossible—especially because more and more vehicles are now being fitted with the necessary equipment as standard. Persuading people to switch their phones off altogether when they get behind the wheel might be the only answer. Who knows, they might even come to enjoy not having to take calls. And they’ll be more likely to arrive in one piece.
The purpose of the passage is to______.
选项
A、inform people of the danger of using phones while driving
B、call on lawmakers to make new road laws on the use of cell phones
C、offer suggestions for drivers who use cell phones while driving
D、weigh the benefits and harms of using phones when driving
答案
A
解析
参见文章介绍。
转载请注明原文地址:https://kaotiyun.com/show/ABHO777K
0
研究生英语学位课统考(GET)
相关试题推荐
Duringthepastgeneration,theAmericanmiddle-classfamilythatoncecouldcountonhardworkandfairplaytokeepitselffin
Theschoolarrangedroadtripappearsto______thespringbreak.
Tomostofus,nuclearisanall-or-nothingword.Nuclearwarisunthinkable.Nuclearweaponsmustneverbeused.Nuclearpower
Historically,thespread,prevalence,andveryexistenceofcontagiousdiseasehavewhollydependedonthegrowthandconcentrat
InthepostColdWarworldfewarticleshaveinfluencedhowWesternpolicymakersviewtheworldmorethanSamuelHuntington’s19
Scientistsstudyhowparentsandtheirbabies______,tobetterunderstandhowinfantslearn.
Discoveriesinscienceandtechnologyarethoughtby"untaughtminds"tocomeinblindingflashesorastheresultofdramatica
"Theeffectofthismedicine______bymidnight,"thedoctortoldEmma,"Youhadbetternottrytoreadtonight."(北京大学2005年试题)
Itwasrainingheavily,littleMaryfeltcold,soshestood______tohermother.(中国矿业大学2010年试题)
MylastflighttoRomelandedatstupido’clockinthemorningsoIwasalmostlookingforwardtogettingacupofhotcoffeefr
随机试题
A.收缩<120mmHg,舒张压<80mmHgB.<收缩压130mmHg,舒张压<85mmHgC.收缩压140~159mmHg,舒张压1~99mmHgD.收缩压160~179mmHg,舒张压1~109mmHgE.收缩压≥180mmHg,舒张压≥11
小儿肠套叠大便的特点是()。
女性,28岁。突然发生右下腹痛,伴有恶心、呕吐。体检:腹平,软,右下腹深压痛,无反跳痛。右肋脊角叩痛。尿镜检:白细胞。0~5个/高倍视野,红细胞10~15个/高倍视野。血常规:白细胞9.6×109/L,中性粒细胞0.78。首先考虑的诊断为
高血压患者出现高血压危象时,应首先选用的降血压药物是()
根据边际成本理论,房地产开发的边际成本随容积率增加的变化趋势是()。
根据《中华人民共和国防洪法》,尚无工程设施保护的洪水泛滥所及的地区是指()。
在用盾构法修筑隧道时,其初始掘进不具备的特点是( )。
【真题(初级)】下列各项中,不属于信息系统审计内容的是()。
学校教育对个体的影响具有即时价值,但难有延时价值。()
Thenewsaboutvitaminskeepsgettingworse.Manystudiespublishedinthelastfewyearsshowsthatavarietyofpopularsupple
最新回复
(
0
)