The steady hum of school heating systems and air-conditioners can mean lower test scores for many young students, found a new st

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问题     The steady hum of school heating systems and air-conditioners can mean lower test scores for many young students, found a new study. The finding adds to growing evidence that classroom noises【C1】______ with learning.
    Plenty of studies have demonstrated the distracting【C2】______of noise in the classroom. In louder rooms, kids have more trouble hearing the teacher and become easily distracted,【C3】______when they are reading to themselves. Schools【C4】______ airports also report lower test scores than schools that are not affected by airplane noise. In one study, German students started scoring better on reading and vocabulary tests after a nearby airport【C5】______.
    Researchers were also interested in less【C6】______ sounds like the general buzz of basic mechanical systems. It was【C7】______that kids who spent all day in classrooms with such noises【C8】______ to score lower on standard reading comprehension tests. But math scores didn’t【C9】______ with noise levels, possibly because teachers use more【C10】______ when they’re teaching math than when they’re teaching words.
  【C11】______, lots of background noise sets kids up for problems. Studies have shown that kids make more noise in louder rooms.【C12】______by the scraping of chairs, the hum of the heating system,【C13】______the voices of other kids competing to be heard, some students【C14】______have a particularly hard time hearing【C15】______ the teacher is saying. And it’s not that they’re lazy or using noise as an【C16】______. Young brains have a much harder time【C17】______a signal from the background than mature, adult brains do.
    Along with【C18】______work, the new findings suggest the【C19】______ for enforcement of ANSI’s standards. Despite an endless list of budgetary【C20】______, schools might have to put quiet at the top of their to-do lists.
【C1】

选项 A、vibrate
B、interfere
C、increase
D、vanish

答案B

解析 动词辨析题。句意为:此项发现又为证实教室噪音干扰学习的观点增加了新的证据。根据本段首句,学校的供暖系统和空调的持续噪声可能导致年轻学生的考试成绩下滑,说明教室噪音会影响、干扰学习,故选择interfere。vibrate“震颤”、increase“增加”和vanish“消失”均不合文意,应排除。
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