50. A.also B.even C.never D.always
答案：31-40
BCADB ADBAC 41-50 BDABD CADCC
12
湖南省浏阳一中10-11学年高二上学期期中考试
At the beginning of this century, medical
scientists made an interesting discovery; we are built not just of flesh and
blood but also of time. They were able to show that we all have "a body
clock" 36 us, which controls the rise and fall of
our body energies, 37 us different from one day to the next.
The idea of "a body clock" should
not be too 38 since the lives of most living
things are controlled by the 24 hour night-and-day cycle. We feel 39 and fall asleep at night and
become 40 and energetic during the day. If the 24
hour-cycle is disturbed, most people experience unpleasant 41 . For example, people who are
not 42 to working at night can find
that 43 of sleep causes them to 44 badly at work. 45
the daily cycle of sleeping and waking, we also have other cycles which
last longer than one day. Most of us would
46 that we feel
good on some days and not so good on others ; sometimes our ideas seem to flow
and at other times, they 47 do not exist.