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考研
At the beginning of the century, medical scientists made a surprising discovery: that we are (1)_____ not just of flesh and bloo
At the beginning of the century, medical scientists made a surprising discovery: that we are (1)_____ not just of flesh and bloo
admin
2011-10-20
71
问题
At the beginning of the century, medical scientists made a surprising discovery: that we are (1)_____ not just of flesh and blood but also of time. They were able to (2)_____ that we all have an internal "body clock" which (3)_____ the rise and fall of our body energies, making us different from one day to the (5)_____. These forces became known as biorhythms: they create the (5)_____ in our everyday life.
The (6)_____ of an internal "body clock" should not be too surprising, (7)_____ the lives of most living things are dominated by the 24-hour night-and-day cycle. The most obvious (8)_____ of this cycle is the (9)_____ we feel tired and fall asleep at night and become awake and (10)_____ during the day. (11)_____ the 24-hour rhythm is interrupted, most people experience unpleasant side effects.
(12)_____, international aeroplane travelers often experience "jet lag" when traveling across time (13)_____. People who are not used to (14)_____ work can find that lack of sleep affects their work performance.
(15)_____ the daily rhythm of sleeping and waking, we also have other rhythms which (16)_____.longer than one day and which influence wide areas of our lives. Most of us would agree that we feel good on (17)_____ days and net so good on others. Sometimes we are (18)_____ fingers and thumbs but on other days we have excellent coordination. There are times when we appear to be accident-prone, or when our temper seems to be on a short fuse. Isn’t it also strange (19)_____ ideas seem to flow on some days but at other times are (20)_____ nonexistent? Musicians, painters and writers often talk about "dry spells".
选项
A、ups and "down"
B、goods and "bads"
C、pros and "cons"
D、highs and "lows"
答案
D
解析
句意衔接题。根据生物钟的特点,这里显然填入"highs" and "lows"合理,同时,根据常识也可判断正确答案。
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0
考研英语一
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