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  3. To master the violin takes 10,000 hours of practice. Put in that time and【C1】________will follow. This, at least, is what many m

To master the violin takes 10,000 hours of practice. Put in that time and【C1】________will follow. This, at least, is what many m

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问题     To master the violin takes 10,000 hours of practice. Put in that time and【C1】________will follow. This, at least, is what many music teachers tell their pupils. Psychologists are more【C2】________. Some agree practice truly is the thing that【C3】________experts from beginners, but others suspect genes play a role, too, and that【C4】________the right genetic make-up even 20,000 hours of practice would be pointless. A study just published in Psychological Science, by Miriam Mosing of the Karolinska Institute, in Sweden, suggests that the skeptics are【C5】________. Practicing music without the right genes to【C6】________that practice up is【C7】________useless.
    Dr Mosing drew her【C8】________in a time-honored way—by studying twins. She and her colleagues【C9】________1,211 pairs of identical twins (who share all their genes) and 1,358 pairs of fraternal twins (who share half). They asked each participant【C10】________he or she played a musical instrument or actively【C11】________singing. Those who did were asked to【C12】________how many hours a week they had practiced at different ages. From this Dr Mosing was able to calculate a【C13】________for each individual’s lifetime practice. Anyone who did not play an instrument or sing got no point.
    Next, Dr Mosing tested her volunteers’ musical abilities. Expert  musicians  are  exceptionally good at【C14】________differences in pitch, melody and rhythm. She therefore expected to find that if someone had put in【C15】________practice time his musical ability would be as high as an expert’s. But that was not true. In fact, there appeared to be no【C16】________between practice and musical ability of the sort she was measuring. A twin who practiced more than his genetically identical co-twin did not appear to have better musical abilities as a result. In one case the difference between two such twins was 20,228 hours of practice,【C17】________the pair’s measured musical abilities were found to be the same.
    That is not to say practice has no【C18】________. Playing an instrument and singing are physical skills, and do take a long time to【C19】________. And Dr Mosing has shown that musical ability has a big genetic【C20】________.
【C15】
选项 A、scientific
B、enjoyable
C、inspiring
D、sufficient
答案D
解析 首段提到，心理学家假设的另一情况是：如果没有音乐细胞，再多的练习也是徒劳，故应推断在研究中。Mosing确认被调查者现有的音乐技能之后，还需考察增加练习时间是否会提高被调查者的音乐技能。D项sufficient“足够的”代入后句意为“是否一个人进行了足够多的练习就能达到专家那样高的音乐水准”。这是Mosing想要研究的问题，符合语篇和逻辑要求。根据上下文的表述。无法从推断Mosing的研究是否会考察练习时间安排的科学性(A项scientific)、趣味性(B项enjoyable)或鼓舞性(C项inspiring)。
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