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  3. Music produces profound and lasting changes in the brain. Schools should add music classes, not cut them. Nearly 20 years ago, a

Music produces profound and lasting changes in the brain. Schools should add music classes, not cut them. Nearly 20 years ago, a

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问题     Music produces profound and lasting changes in the brain. Schools should add music classes, not cut them. Nearly 20 years ago, a small study advanced the【C1】________that listening to Mozart’s Sonata for Two Pianos in D Major could boost mental functioning. It was not long【C2】________trademarked "Mozart effect’ products began to appeal to anxious parents aiming to put little kids【C3】________the fast track to prestigious universities like Harvard and Yale. Georgia’s governor even【C4】________giving every newborn there a classical CD or cassette.
    The evidence for Mozart therapy【C5】________to be weak, perhaps nonexistent, although the【C6】________study-never claimed anything more than a temporary and limited effect. In recent years,【C7】________, scientists have examined the benefits of a concerted【C8】________to study and practice music, as【C9】________to playing a Mozart CD or a computer-based "brain fitness" game【C10】________in a while.
    Advanced monitoring【C11】________have enabled scientists to see what happens【C12】________ your head when you listen to your mother and actually practice the violin for an hour every afternoon. And they have found that music【C13】________can produce profound and lasting changes that【C14】________the general ability to learn. These results should【C15】________public officials that music classes are not a mere decoration, ripe for discarding in the budget crises that constantly【C16】________public schools.
    Studies have shown that【C17】________instrument training from an early age can help the brain to【C18】________ sounds better, making it easier to stay focused when absorbing other subjects, from literature to mathematics. Those who are good at music are better able to【C19】________a biology lesson despite the noise in the classroom【C20】________, a few years later, to finish a call with a client when a colleague in the next office starts screaming at a subordinate. They can attend to several things at once in the mental scratch pad called working memory, an essential skill in this era of multitasking.
【C19】
选项 A、count on
B、insist on
C、depend on
D、concentrate on
答案D
解析 上下文语义题。上一句提到“使大脑更容易集中注意力(stay focused)”，此处则对上一句作进一步解释。句中罗列了两种情形：一是“尽管在嘈杂的生物课上”，二是“几年后当在隔壁办公室的同事开始对下属尖叫时，能够给客户打完电话”。这两个情形的背景都是相同的，即吵闹，由此可见，填入的词应表示“注意力集中”之意，D项concentrate on“集中精力于”符合要求，且呼应了上一句的stay focused。A项count on和C项depend on意思相近，均有“依靠”之意，填入文中与despite the noise in the classroom在内容上衔接不上，且一道题不可能有两个答案，故可首先排除。B项insist on“坚持”填入文中与上下文所提及的“注意力集中”的语境不符。
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