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
48
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://www.kaotiyun.com/show/ABHO777K
0
研究生英语学位课统考(GET)
相关试题推荐
Peter’sfatheraskedhimtospendhistimeonsomething______researchingintoinsteadofplayingallthetime.
Some23millionadditionalU.S.residentsareexpectedtobecomemoreregularusersoftheU.S.healthcaresysteminthenext
Adolescentsaretakinglongertobecomefullyproductivemembersofsociety,ReedLarson,professorofhumandevelopment,Univer
Thereiscurrentlyabroadanewwaveofappreciationforbreadthofknowledge.Curriculaatuniversitiesandcollegesandprogra
Scienceandpoliticsmakeuncomfortablebedfellows.Rarelyisthismoretruethaninthecaseofclimatechange,whereitisnow
Scientistshavelongunderstoodthatsupermassiveblackholesweighingmillionsorbillionsofsunscantearapartstarsthatco
Thereisarangeofactivitieswhichrequiremovementsofaboutonetofourorfivemiles.Thesemightbeleisureactivities,su
Insuchachanging,complexsocietyformerlysimplesolutionstoinformationalneedsbecomecomplicated.Manyoflife’sproblems
TheMinisterofFinanceisbelieved______ofimposingnewtaxestoraiseextrarevenue.(中南大学2007年试题)
Withitsstockpricerisingby20percent,thecompanybecomesthesecondmost______technologyfirminthecountry.
随机试题
将积分区域D对应的二重积分I=f(x,y)dxdy按两种次序化为二次积分:D是由抛物线y=x2及y=4-x2所围的区域.
A.伤神B.耗气C.耗血D.伤精劳力过度则
该患者的发作类型是下列检查中除哪项外应尽快完善
病例,28岁,初孕,妊娠36周,近一周感乏力食欲差,作ALT256U诊断为急性病毒性肝炎,应给予高度重视及积极治疗,是因为
城市饮用水卫生标准规定
A.川椒、干姜、人参、饴糖B.附子、干姜、甘草C.人参、干姜、白术、甘草D.桂枝、当归、芍药、甘草、饴糖E.以上都不是大建中汤的药物组成是()
如用电子胎心监护测胎心率,下列指标提示胎儿缺氧的是
下面是有关要约对要约人的拘束力的表述,其中正确的表述是()。
甲公司是一家上市公司。下列股票交易行为中,属于证券法律制度所禁止的有()。
比较下列积分值的大小:
最新回复
(
0
)