大学六级-1287及答案解析.doc
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1、大学六级-1287 及答案解析(总分:712.00,做题时间:90 分钟)一、Part Writing(总题数:1,分数:106.00)1.Is Beauty an Advantage?1近年来不少大四学生就业前突击整容2当今社会崇尚外表的舆论导向是导致上述现象的主要因素3我对外表美的看法(分数:106.00)_二、Part Reading Compr(总题数:1,分数:70.00)The Science of InterruptionsIn 2000, Gloria Mark was hired as a professor at the University of California.
2、She would arrive at her desk in the morning, full of energy and ready to tackle her to-do list. No sooner had she started one task than a colleague would e-mail her with an urgent request; when she went to work on that, the phone would ring. At the end of the day, Mark had accomplished a fraction of
3、 what she set out to do.Lots of people complain that office multitasking drives them nuts. But Mark studies how high-tech devices affect our behavior, so she was able to do more than complain: She set out to measure how nuts weve all become. She watched cubicle (办公室隔间) dwellers as they surfed the ch
4、aos of modern office life and found each employee spent only ten-and-a-half minutes on any given project before being interrupted. Each short project was itself fragmented into three-minute tasks, like answering e-mail messages or working on a sheet.Marks study also revealed that interruptions are o
5、ften crucial to office work. The high-tech workers admitted that many of their daily distractions were essential to their jobs. When someone forwards you an urgent e-mail message, its often something you really do need to see; if a mobile phone call breaks through, it might be the call that saves yo
6、ur hide.For some computer engineers and academics, this realization has begun to raise an attractive possibility: Perhaps we can find an ideal middle ground. If high-tech work distractions are inevitable, maybe we can re-engineer them so we receive all of their benefits but few of their downsides.Th
7、e Birth of MultitaskingThe science of interruptions began more than 100 years ago with the emergence of telegraph operators the first high-stress, time-sensitive information-technology jobs. Psychologists discovered that if someone spoke to a telegraph operator while he was keying a message, the ope
8、rator was more likely to make errors. Later, psychologists determined that whenever workers needed to focus on a job that required the monitoring of data, presentation was all important. Using this knowledge, cockpits (驶舱) for fighter pilots were carefully designed so that each dial and meter could
9、be read with just a glance.Still, such issues seemed remote from the lives of everyday workers. Then, in the 1990s, computers began to experience a rapid increase in speed and power. “Multitasking“ was born; instead of simply working on one program for hours at a time, a computer user works on sever
10、al simultaneously. Office workers now stare at computer screens of overwhelming complexity, as they juggle (操纵) messages, text documents, PowerPoint presentations and web browsers. In the modern office we are all fighter pilots.Effect of Multitasking: Computer-affected BehaviorInformation is no long
11、er a scarce resource attention is. 20 years ago, an office worker had two types of communication technology: a phone, which required an instant answer, and postal mail, which took days. Now people have dozens of possibilities between these two poles.The result is something like “continuous partial a
12、ttention“, which makes us so busy keeping an eye on everything that we never fully focus on anything. This can actually be a positive feeling, inasmuch as the constant email dinging makes us feel needed and desired. But what happens when you take that to the extreme? You get overwhelmed. Sanity lies
13、 in danger.In 1997, Microsoft recruited Mary Czerwinski, who once worked in NASAs Human-computer Interaction Lab, to conduct basic research to find out how computers affect human behavior. She took 39 office workers and installed software on their computers that would record every mouse click. She d
14、iscovered that computer users were as restless as hummingbirds. On average, they juggled eight windows at the same time. More astonishing, they would spend barely 20 seconds looking at one window before flipping to another.Why constant shifting? In part it was because of the way computers are laid o
15、ut. A computer offers very little visual real estate. A Microsoft Word document can cover almost an entire screen. Once you begin multitasking, a computer desktop quickly becomes buried in windows. When someone is interrupted, it takes just over 23 minutes to cycle back to the original task. Once th
16、eir work becomes buried beneath a screenful of interruptions, office workers appear to forget what tasks they were originally pursuing. The central danger of interruptions is not the interruption at all, but the confusion they bring to our short-term memory.Ways to Cope with InterruptionsWhen Mark a
17、nd Czerwinski, working separately, looked at the desks of the people they were studying, they each noticed the same thing: Post-it notes. Workers would write brief reminders of the task they were supposed to be working on (“Test DAs PC, Waiting for AL. “). Then they would place them directly in thei
18、r fields of vision, often in a circle around the edge of their computer screens.These piecemeal efforts at coping pointed to ways that our high-tech tools could be engineered to be less distracting. Czerwinski also noticed many Microsoft people attached three monitors to their computers. They placed
19、 their applications on different screens the email on the right side, a web browser on the right and their main work project in the middle so that each application was read at a glance. When the ding on their email program went off, they just peek to the left to see the message.The workers said this
20、 arrangement made them feel calmer. But did more screen area actually help with cognition? To find out, Czerwinski had 15 volunteers sit in front of a regular size 38 cm monitor and complete a variety of tasks designed to challenge their concentration a web search, some cutting and pasting, and memo
21、rizing phone numbers. Then the volunteers repeated the tasks using a computer with a massive 105 cm screen.On the bigger screen, some people completed the tasks as much as 44% more quickly. In two decades of research, Czerwinski had never seen a single change to a computer system so significantly im
22、prove a users productivity. The clearer your screen, the calmer your mind.Looking for Better InterruptionsMark compared the way people work when sitting in cubicles with how they work when theyre at different locations and interact online. She discovered people working in cubicles suffer more interr
23、uptions, but they have better interruptions because their co-workers have a social sense of what theyre doing. When you work next to others, they sense whether youre deeply immersed or relatively free to talk and interrupt you accordingly.Why dont computers work this way? Instead of alerting us to e
24、mail messages the instant they arrive, our machines could deliver them at optimum moments, when our brains are relaxed. Eric Horvitz at Microsoft is trying to do precisely that. He has been building automated reasoning systems equipped with artificial intelligence that observes a computer users beha
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- 大学 1287 答案 解析 DOC
