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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】________.
【C19】
选项 A、evaluate
B、demonstrate
C、physical
D、prepare
答案C
解析 空格前提到演奏乐器和唱歌是physical skills(身体技能)，要经过长时间才能学会或掌握，故C项master“掌握”符合逻辑要求。结合文章的主题和内容，无法判断是否需要很长时间来判断一个人的音乐才能，排除A项evaluate“评估，评价”。B项demonstrate“演示，示范”或D项prepare代入后分别说明需要很长的时间来展示或准备乐器演奏等音乐才能，语义不符合语篇要求。
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