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

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

admin2014-03-21  88
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.
【C17】
选项 A、identifying
B、filtering
C、remembering
D、seeking
答案B
解析 动词辨析题。句意为：未成年人的头脑比成熟的成年人的头脑更难以从背景中过滤出信号。根据上下文语境，此处所表达的意思是从背景声音中辨认或剥离出有用信息，而该动词还可以与介词from搭配。filter“过滤，渗透”可与from搭配，并可表示从大量信息流中辨识有用信息的意义，因此为答案。动词remember表示“想起，记住”，不符合原文语境，先排除；identify通常与with搭配，表示“认同，将事物等同”等意义，不符合原文语境；seek表示对既定目标展开的搜寻，而此处的信息是未知的，故排除。
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