2014年高三英语阅读复习第三期科普知识与现代技术9【导读】俗话说：一心不得二用。

真的有什么科学依据吗？People who multitask all the time may be the worst at doing two things at once, a new research suggests. The findings, based on performances and self-evaluation by about 275 college students, indicate that many people multitask not out of a desire to increase productivity, but because they are easily distracted (分心) and can’t focus on one activity. And “those people turn out to be the worst at handling different things,” said David Sanbonmatsu, a psych ologist at the University of Utah.Sanbonmatsu and his colleagues gave the students a set of tests and a sked them to report how often they multitasked, how good they thought they were at it, and how sensation-seeking (寻求刺激) or imperative (冲动) they were. T hey then evaluated the participants’ multitasking ability with a tricky mental task that required the students to do simple mathematical calculations while remembering a set of letters.Not surprisingly, the scientists said, most people thought they were better than average at multitasking, and those who thought they were better at it were more likely to report using a cellphone while driving or viewing multiple kinds of media at once. But those who frequently deal with many things at the same time were found to perform the worst at the actual multitasking test. They also were more likely to admit to sensation-seeking and impulsive behavior, which connects with how easily people get bored and distracted.“People multitask not because it’s going to lead to greater productivity, but because they’re distractible, and they get sucked into things that are not as important.” Sanbonmatsu said. Adam Gazzaley, a researcher at the University of California, San Francisco, who was not a member of the research group, s aid one limitation of the study was that it couldn’t find out whether people who start out less focused toward multitasking or whether people’s recognizing and understanding abilities change as a result of multitasking.The findings do suggest, however, why the sensation-seeker who multitask the most may enjoy risky distracted driving. “People who are multitasking are generally less sensitive to risky situations.” said Paul Atchley, another researcher not in the group. “This may partly explain why people go in for these situations even though they’re dangerous.”【文章大意】本文是一篇研究报告。

Sanbonmatsu和他的同事通过对275名高校生进行的多任务试验，根据参与者的表现和自我评估，发现：当一心多用的人同时做两件事时，表现最不如人意。

因为他们容易分心，无法专注于一个活动。

另外，那些一心多用者对于危险情况不很敏感。

段落关键词、句大意推测第一部分（Para. 1）People who multitask all the time may bethe worst at doing two things at once, anew research suggests. they are easilydistracted (分心) and can’t focus on oneactivity当一心多用的人同时做两件事时，表现最不如人意。

因为他们容易分心，无法专注于一个活动。

第二部分（Para. 2）a set of tests; report ...; evaluated; .But …perform the wo rst; more likely toadmit to sensation-seeking and impulsive实验过程：给参与者一组测试，要求他们报告数据，然后他们通过一个微妙的心理任务评估behavior; how easily people get bored anddistracted.参与者的多任务处理能力。

第三部分（Para. 3）found to perform the worst ；to admit tosensation-seeking and impulsive behavior,which connects with…one limitation …was that it couldn’t findout whether people who start out lessfocused toward multitasking or whetherpeople’s recognizing and understandingabilities change as a result of multitasking，less sensitive to risky situations。

实验结果: 那些自认为有较好的多任务执行力的参与者在实际多任务操作时表现最糟糕，他们承认自己的行为是寻求刺激和冲动, 这与他们容易感觉无聊和分心的有关。

试验的一个局限性：无法得知参与者是否对多任务操作关注不多，人们是否会因为多任务操作的结果而改变认识能力和理解能力。

研究表明：那些一心多用者对于危险情况不很敏感。

【信息提取】1. The re search led by Sanbonmatsu indicates that peopl e who m ultitask ______.A. seek high productivity constantlyB. prefer handling different things when getting boredC. are more focused when doing many things at a timeD. have the poorest results in doing various things at the same time2. When Sanbonmatsu and his colleagues conducted their research, they ______.A. assessed the multitasking ability of the studentsB. evaluated the academic achievements of the studentsC. analyzed the effects of the participants’ tricky mental tasksD. measured the changes of the studen ts’ understanding ability3. According to Sanbonmatsu, people multitask because of their ______.A. limited power in calculationB. interests in doing things differentlyC. inability to concentrate on one taskD. impulsive desire to try new things4. From the last paragraph, we can learn that multitaskers usually ______.A. drive very skillful lyB. go in for different tasksC. fail to react quickly to potential dangersD. refuse to explain the reasons for their behavior【解析】1. D。