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.
【C4】

选项 A、estimated
B、upheld
C、opposed
D、refuted

答案A

解析 本句的句意为“基于以前的数据,研究者……那些听音乐时间最长的青少年每天听音乐的时间可能至少有4到5个小时”,由likely(可能)可知此处表猜测,故A项estimated“估计”符合句意。B项upheld“支持”通常是指支持或维护某一法律、原则或者决定,而本句只是讲根据研究数据得出的结果。C项opposed“反对”,D项refuted“驳斥”。上下文没有体现出研究者对这一研究结果是持反对还是驳斥的态度。
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