[单项选择]People who ______ work should

[单项选择]People who ______ work should

[单项选择]

People who work night shifts are constantly fighting against an "internal clock" in their bodies. Quite often the clock tells them to sleep when their job requires them to remain fully awake. It’s no wonder that more accidents happen during night shills than at any other time. Light therapy(照光治疗法) with a bright light box can help night-shift workers adjust their internal clock, However, many doctors recommend careful planning to help improve sleep patterns. For example, night-shift workers often find it difficult to sleep in the morning when they get off work because the body’s natural rhythm(节律) fights back, no matter how tired they are. Some experts recommend that night-shift workers schedule two smaller sleep periods--one in the morning ’after work, and another longer one in the afternoon, closer to when the body would naturally need to sleep. It’s also helpful to ask friends and family to cooperate by avoiding visits and phone calls during th
A. have to rely on their internal clock
B. need to re-adjust their clock
C. fall asleep late at night
D. have to work at night

[单项选择]Tom is ______ many other people who work here.
A. junior to
B. junior than
C. more junior to
D. more junior than

[单项选择]While you work, you should work in seriousness. Then while you play, you will feel more relaxed and pleasant.
A. 劳动的时候，应该认真负责。因而当你玩耍时，会感到越发放松和高兴。
B. 当你工作时，你应认真工作。那么当你游乐时，就会觉得更加轻松愉快。
C. 在你工作时，理应多干活。于是在你休闲时，你会得到更多的照顾和理解。
D. 在你干活时，必须严肃对待。那么当你玩耍时，就会感觉由衷的轻快。

[单项选择]Most people who travel in the course of their work are given traveling _______.
A. income
B. fee
C. pay
D. allowance

[单项选择]Argonne believes that people should regard maglev transportation as ______.
A. safe, efficient high-speed trains
B. the most exciting form of transportation for the future
C. a kind of aircraft
D. the most economical form of transportation

[单项选择]People should not take good constitution for granted,for human genetic code is ------- the development of -------.
A. (A) liable to ... anomalies
B. (B) predestined for ... discomfort
C. (C) predisposed to ... disease
D. (D) indicative of ... wholesomeness
E. (E) insalubrious for ... malaise

[单项选择]They were surprised that a child should work out the problem ______ they themselves couldn't.
A. once
B. then
C. while
D. if