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  3. In a study published Wednesday, college students who were asked to complete anagrams(字谜)while a nearby researcher talked on her

In a study published Wednesday, college students who were asked to complete anagrams(字谜)while a nearby researcher talked on her

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问题     In a study published Wednesday, college students who were asked to complete anagrams(字谜)while a nearby researcher talked on her cellphone were more irritated(恼怒的)and distracted—and far more likely to remember the【C1】______of the conversation—than students who worked on the same【C2】______while the same conversation was【C3】______by two people in the room. The study is the latest【C4】______a growing body of research on why cellphones【C5】______so high on the list of modern irritants. One reason, said Veronica V. Galvan, the【C6】______author of the study, is the brain’s desire to fill in the【C7】______. " If you only hear one person speaking, you’re【C8】______trying to place that part of the conversation in context. If you’re【C9】______up and someone behind you is talking on a cellphone, you’re kind of【C10】______there," she said, " and you can have a【C11】______stress response. "
    The brain simply can’t【C12】______a stream of desultory(断断续续的)new information, said Lauren Emberson, the postdoctoral associate at the University of Rochester, New York. " Our brains are【C13】______up to focus on things that they are not【C14】______with. When you’re listening to one half of a conversation, you’re forced to constantly【C15】______what’s going to happen next. "
    Though many Americans feel that public cellphone conversations are beyond their【C16】______according to the surveys, there are【C17】______that the problem is getting【C18】______. In 2006, 82 percent of Americans said they were at least occasionally【C19】______by cellphone conversations in public. In 2012, that number【C20】______to 74 percent.
【C20】
选项 A、describes
B、discounts
C、discards
D、descends
答案D
解析 动词辨义题。此句意为“而在2012年，这一数字下降到了74％”。descends“下降”符合文意。describes“描述”；discounts“低估，打折”；discards“抛弃，放弃”，均不符合文意，故排除。
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大学英语四级

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