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  3. Sleeping too little or for too long ages the brain by up to seven years. Get

Sleeping too little or for too long ages the brain by up to seven years. Get

游客2024-02-11  42
问题     Sleeping too little or for too long ages the brain by up to seven years. Getting less or more than the six to eight hours can cause health【C1】______and ultimately lead to an early death.
    Seven hours will keep the brain in【C2】______condition, said scientists at the University of London Medical School, who said a(n) 【C3】______of sleep affects reasoning and vocabulary. They found "the magnitude(大小)of the effect is【C4】______to four to seven years of ageing".
    Researchers said changes over a five-year period in late middle-age affect the function of the brain. Between 7 and 8 per cent of those who slept longer than the【C5】______amount fared worse in cognitive tests. But a quarter of women and one in six men who【C6】______to get a night’s good sleep suffered a(n) 【C7】______in reasoning, vocabulary and cognitive tests.
    The negative effects of too much,【C8】______and poor quality sleep on various aspects of【C9】______and physical health have begun to receive more attention. "【C10】______that society increasingly affects our lives, it is important to consider what effects changes in sleep duration may【C11】______on health and how long we live."
    Researchers found the【C12】______amount of sleep duration of seven hours per night【C13】______the highest score for every test.【C14】______proper amount of sleep, people will be【C15】______of working and studying more efficiently.【C16】______people will become less productive. At the same time their ability to【C17】______is affected and the memory is not as【C18】______. They may find themselves less patient and【C19】______. All of these consequences will【C20】______affect their social interaction and decision-making ability. [br] 【C17】
选项 A、confirm
B、coordinate
C、concentrate
D、concede
答案 C
解析 考查动词辨析。confirm“确认”；coordinate“协凋”；concentrate“集中注意力”；concede“承认”。and表示并列关系，由下文的memory推断这里应填表示大脑能力方面的词，coordinate也可表示能力，但一般指行为上的能力，所以concentrate为最佳答案。
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