专四专八考试

【单选题】The average youngAmerican now spends practically every waking minute—except for the time in school, though reluctantly—using a smart phone, computer, television or other electronic devices, according to a new study.
Those ages 8 to 18 spend seven and a half hours a day with such devices, compared with less than six and a half hours five years ago.And that does not count the hour and a half that youths spend texting, or the half hour they talk on their cellphones.And because so many of them are multitasking—say, surfing the Internet while listening to music—they pack on average nearly 11 hours of media content into that seven and a half hours.
The study’s findings shocked its authors, who had concluded in 2005 that use could not possibly grow further, and confirmed the fears of many parents whose children are constantly tethered to media devices. ^① It found, moreover, that heavy media use is associated with several negatives, including behavior problems and lower grades.
Dr. Michael Rich, a pediatrician atChildren’s HospitalBoston who directs theCenter on Media andChild Health, said that with media use so ubiquitous, it was time to stop arguing over whether it was good or bad and accept it as part of children’s environment, "like the air they breathe, the water they drink and the food they eat. "
Contrary to popular wisdom, the heaviest media users reported spending a similar amount of time exercising as the light media users. Nonetheless, other studies have established a link between screen time and obesity.
While most of the young people in the study got good grades, 47 percent of the heaviest media users—those who consumed at least 16 hours a day—had mostlyC’s or lower, compared with 23 percent of those who typically consumed media three hours a day or less. The heaviest media users were also more likely than the lightest users to report that they were bored or sad, or that they got into trouble, did not get along well with their parents and were not happy at school. The study could not say whether the media use causes problems, or, rather, whether troubled youths turn to heavy media use.
"This is a stunner," saidDonald F. Roberts, one of the authors of the study. "In the second report, I remember writing a paragraph saying we’ve hit a ceiling on media use, since there just aren’t enough hours in the day to increase the time children spend on medi
A、^②But now it’s up an hour. \
It can be inferred from the passage that generally people believe that______.
A、the more time people spend on media use, the less time they spend on exercising
B．the lightest media users spend more time in studying, exercising and sleeping
C．the heaviest media users are more likely to suffer healthy problems
D．the heaviest media users are more likely to have emotional problems

网考网参考答案：A
网考网解析：
推断题。由选项中的the heaviest media users定位至第五段。首句中的reported表明“花大量时间使用媒体设备和花较少时间使用媒体设备的人锻炼时间相差无几”是研究得出的结论，而这个结论是“Contrary to popular wisdom”的，可见大众观点是[A]项内容，故为答案。此处只提到两种人在锻炼时间上差不多，没有涉及学习和睡眠时间，[B]无依据，排除；第五段最后一句表明使用媒体设备和肥胖之间有联系，但这是other-studies的研究成果，没有说是大众看法，排除[C]；同理，第六段第二句是本次的研究结论，不是大众看法，排除[D]。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>