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  3. Video game players may get an unexpected benefit from blowing away bad guys — better vision. Playing "action" video games improv

Video game players may get an unexpected benefit from blowing away bad guys — better vision. Playing "action" video games improv

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问题     Video game players may get an unexpected benefit from blowing away bad guys — better vision. Playing "action" video games improves a visual ability【C1】______tasks like reading and driving at night, a new study says.
    The ability, called contrast sensitivity function, allows people to discern even subtle changes【C2】______gray against a uniformly colored backdrop. It’s also one of the first visual aptitudes to fade with age.
    That’s【C3】______a regular regimen of action video game training can provide long-lasting visual power, according to work led by Daphne Bavelier of the University of Rochester.
    Previous research shows that gaming improves other visual skills, such as the ability to track several objects at the same time and【C4】______attention to a series of fast-moving events, Bavelier said.
    "A lot of different aspects of the visual system are being enhanced,【C5】______one," she said. The new work suggests that playing video games could someday become part of vision-correction treatments, which currently rely mainly on surgery or corrective lenses.
    "【C6】______you’ve had eye surgery or get corrective lenses, exposing yourself to these games should help the optical system to recover faster and better, you need to retrain the brain to make use of the better, crisper information that’s coming in【C7】______a result of your improved eyesight," Bavelier said.
    Expert action gamers in the study played first-person shooters Unreal Tournament 2004 and Call of Duty 2. A group of experienced nonaction gamers played The Sims 2, a "life simulation" video game. The players of nonaction video games didn’t see the same vision【C8】______, the study says.
    Bavelier and others are now trying to figure out exactly why action games【C9】______seem to sharpen visual skill. It may be that locating enemies and aiming accurately is a strenuous, strength-building workout for the eyes, she said.
    Another possible【C10】______is that the unpredictable, fast-changing environment of the typical action game requires players to constantly monitor entire landscapes and analyze optical data quickly. Finally, Bavelier said, the games’ rich payoff may also play a role.
    "It’s pleasing to be successful in your mission," she said. "When you combine rewards with these other "factors", then you get much more learning."
【C3】
选项 A、why
B、how
C、what
D、as
答案A
解析 本题考查逻辑关系词。空格处需要填入一个表示逻辑关系的表语从句引导词。That指代的上一段的内容，空格后从句的意思是“有规律的动作游戏的训练能提供长期有力的视觉能力”，这是上一段“对比敏感度也是第一种会随着年龄衰退的能力(aptitude)”的结果。因此why能体现因果关系，是正确答案。
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