We all know that the normal human daily cycle of some 7-8 hours sleep alternating with some 16-17 hours wakefulness and that, broadly speaking, the sleep normally coincides with the hours of darkness. Our present concern is win how easily and to what extent this cycle can be modified. One answer would seem to be longer periods on each shift, a month, or even three months. Recent research by Bonjer of the Netherlands, however, has shows that people on such systems will revert to their normal habits of sleep and wakefulness during the week-end and that this is quite enough to destroy any adaptation to night work built up during the week. 1. The question raised in Paragraph 1 is no mere academic one B)because sleep normally coincides with the hours of darkness. D)because shift work in industry requires people to change the sleeping habits. A) people hate the inconvenience of working on night shifts. C) not all industries work at the same hours. 3. According to the passage, the best solution on the problem seems to be B) to make periods on each shift longer. D) to find ways of selecting people who adapt quickly. A) the third week C) a third of the time 5. In the last sentence of the second paragraph, another means B) another shift D) another person
商务英语口语900句 (14)
在机场办理登记手续
商务英语口语900句 (07)
商务英语口语900句 (30)
商务英语口语900句 (16)
商务英语口语900句 (26)
商务英语口语900句 (04)
谈论电影常用英语口语对话
商务英语口语900句 (18)
商务英语口语900句 (25)
商务英语口语900句 (23)
英语口语练习
商务英语口语900句 (20)
商务英语口语900句 (21)
流利美语随你讲 Lesson3-寒暄3
商务英语口语900句 (15)
见面分手[1]
商务英语口语900句 (29)
减肥瘦身[1]
外企HR现身说法面试经验(一)
商务英语口语900句 (02)
商务英语口语900句 (05)
商务英语口语900句 (08)
工作常用英语口语对话[1]
商务英语口语900句 (24)
商务英语口语900句 (09)
商务英语口语900句 (22)
商务英语口语900句 (01)
英语口语情景对话(关于约会交往)
实用商务英语2:新任就职
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |