This latter system then appears to be the best long-term policy, but meanwhile something may be done to relieve the strains of alternate day and night work by selecting those people who can adapt most quickly to the changes of routine. One way of knowing when a person has adapted is by measuring his body temperature. People engaged in normal daytime work will have a high temperature during the hours of wakefulness and a low one at night; when they change to night work the pattern will only gradually go back to match the new routine and the speed particularly in terms of performance. Therefore, by taking body temperature at intervals of two hours throughout the period of wakefulness it can be seen how quickly a person can adapt to a reversed routine, and this could be used as a basis for selection. So far, however, such a form of selection does not seem to have been applied in practice.
26. Why is the question of how easily people can get used to working at night no mere academic one?
A. Because few people like to reverse the cycle of sleep and wakefulness.
B. Because sleep normally coincides with the hours of darkness.
C. Because people are required to work at night in some fields of industry.
D. Because shift work in industry requires people to change their sleeping habits.
27. The main problem of the round-the-clock working system lies in_______.
【六级冲刺练习阅读(144)】相关文章:
最新
2016-10-18
2016-10-11
2016-10-11
2016-10-08
2016-09-30
2016-09-30