Being plugged into an iPod is a feature of adolescence. A new study suggests that teens who spend too much time listening to mus

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问题    Being plugged into an iPod is a feature of adolescence. A new study suggests that teens who spend too much time listening to music may be at higher risk of depression.
The study found that teens who reported listening to music more often—【C1】________using other types of media like TV and books—were more likely to have major depressive disorder,【C2】________with teens who listened to music less frequently. With each level increase in music use, teens had an 80% higher risk of depression, the study found. The study didn’t measure【C3】________listening times, but based on previous data, the study authors【C4】________that teens in the highest-use group were likely listening to music【C5】________at least four or five hours a day.
At this【C6】________it is not clear whether depressed people begin to listen to more music to【C7】________or whether listening to large【C8】________of music can lead to depression,  or  both.【C9】________researchers  found  that reading books had the opposite【C10】________: with time spent in reading increasing, teens’ risk of depression【C11】________50%. This is worth emphasizing because overall in the U.S., reading books is decreasing,【C12】________nearly all other forms of media use are increasing.
For the study, the researchers【C13】________106 participants aged 7 to 17 for two months; 46 participants had been previously【C14】________with depression. Throughout the course of the study, researchers made【C15】________weekend phone calls to the teens in order to determine, in real time, what forms of media they were using,【C16】________television, music, video games, Internet, magazines and books. On average, teens were most likely to be watching a movie or TV when researchers called (26% of the time). Teens reported listening to music 9% of the time, followed by Internet use and video gaming (6% each) and,【C17】________, reading printed media (0.2%).
Of all the media reported, only music showed【C18】________associations  with  increased  depression  risk,【C19】________researchers had control of【C20】________like age, sex and race.
【C19】

选项 A、before
B、when
C、after
D、white

答案C

解析一项调查在得出比较客观的结论之前，当然是先要排除一些外在的因素，所以此处选C项after“在……之后”，即在调研人员控制了年龄、性别和种族等……之后再做出研究结论。A项before“先于”，如果先于控制各种情况就做出研究结论，就不能保证调查的客观性，不符合逻辑。B项when“在……时”，D项while“在……期间”，调查的同时不可能既排除外在情况又做出结论，不合常理。

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考研英语二

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