2. 职称英语
  3. A. so that B. preference C. normal D. circle E. calls for F. problem G.

A. so that B. preference C. normal D. circle E. calls for F. problem G.

游客2023-10-28  32
问题     A. so that B. preference C. normal D. circle E. calls for
    F. problem G. longer H. cycle I. matter J. illustrates
    K. hand over L. formal M. reversed N. habit O. means
    The normal human daily cycle of activity is some 7-8 hours’ sleep alternation with some 16-17 hours’ wakefulness and that the sleep normally coincides with the hours of darkness. Our present concern is how easily and to what extent this【C1】______ can be modified.
    The question is not merely an academic one. The ease with which people can change from working in the day to working at night is a【C2】______ of growing importance in industry where automation【C3】______round-the-clock working of machines. It normally takes from five days to one week for a person to adapt to a【C4】______ routine of sleep and wakefulness, sleeping during the day and working at night. Unfortunately, it is often the case in industry that shifts are changed every week. This【C5】______ that no sooner has he got used to one routine than he has to change to another,【C6】______ much of his time is spent neither working nor sleeping very efficiently.
    One answer would seem to be【C7】______ periods on each shift, a month, or even three months. However, recent research has shown that people on such systems will go back to their 【C8】______ habits of sleep and wakefulness during the weekend and that this is quite enough to destroy any adaptation to night work built up during the week. The only real solution appears to be to【C9】______ the night shift to those permanent night workers whose【C10】______ may persist through all weekends and holidays. [br] 【C7】
选项
答案 G
解析 分析语法可知，空格处应该填入形容词，修饰periods。上文提到每周一轮的轮班模式使人既不能高效地工作也不能安稳地睡觉，下文随即提出了解决方案：一个月轮一次或者甚至是三个月轮一次。由此可见，轮休的时间跨度明显比每周一轮要长，因此填入词库中的longer“更长的”符合语境。
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