Do you find getting up in the morning so difficult that it’s painful? This【C1】______called laziness, but Dr. Kleitman has a new

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问题     Do you find getting up in the morning so difficult that it’s painful? This【C1】______called laziness, but Dr. Kleitman has a new explanation. He has proved that everyone has a daily energy【C2】______. During the hours when you【C3】______your work you may say that you’re " hot". That’s true. The time of day when you feel most【C4】______is when your cycle of body temperature is【C5】______its peak. For some people the peak comes during the forenoon. For【C6】______it comes in the afternoon or evening. No one has discovered why this is so, but it【C7】______such familiar monologues(自言自语)as: Get up John! You’ll be late for work again! The possible explanation to the trouble is that John is at his【C8】______and energy peak in the evening.【C9】______family quarreling ends when husbands and wives realize【C10】______these energy cycles mean, and which cycle each member of the【C11】______has.
    You can’t change your energy cycle, but you can learn to make your life【C12】______it better.【C13】______can help, Dr. Kleitman believes. Maybe you’re sleepy in the evening but feel you must【C14】______late anyway. Counteract(对换)your cycle【C15】______by habitually staying up late than you want to. If your energy is low in the morning but you have important job to do【C16】______in the day,【C17】______before your usual hour. This won’t change your cycle, but you’ll get up steam and work better at your low point. Whenever possible, do【C18】______work in the afternoon and【C19】______tasks requiring more energy or concentration for your【C20】______hours.
【C5】

选项 A、on
B、at
C、over
D、in

答案B

解析 at the peak表“在顶峰”,固定搭配。
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本试题收录于: 英语题库普高专升本分类
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