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

游客2024-02-11  4

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] 【C1】

选项 A、decline
B、denial
C、fatigue
D、collapse

答案 A

解析 考查名词辨析。decline“衰退”,denial“否认”,fatigue“疲劳”,collapse“崩溃”。根据下文lead to an early death“导致早逝”推断答案为decline,表示“健康的衰退”。denial和fatigue均不能与health搭配:collapse用词过于严重,因后面有ultimately lead…则空处应填程度稍轻的词,如此才能与后文衔接。
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