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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 a-bilities. 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】________.
【C12】
选项 A、imagine
B、estimate
C、dictate
D、prove
答案B
解析 空格后的how many hours…被调查者被询问的内容。被调查者的记性再好，也不可能准确地记住以前不同年龄段的练习时间，故B项estimate“估计”符合常理和逻辑，代入后指研究者问及他们大致的练习时间。该项研究要调查双胞胎的练习时间，就应根据他们的实际情况而不是凭借他们所想象(A项imagine)的数据来作参考。C项dictate“口述”代入后说明被调查者采用口头回答的形式来完成调查，缺乏相应的语义依据。被调查者在研究中只需要提供数据，而不用去证明自己数据的真实性，故D项prove“证明”不符合常理。
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