题目内容
At the beginning of this century, medical scientists made an interesting discovery: we are built not just of flesh(肌肉) and blood but also of time. They were 41 to show that we all have a ‘body clock’ 42 us, which controls the 43 and fall of our body energies, 44 us different from one day to the next.
The 45 of a ‘body clock’ should not be too 46 since the lives of most living things are controlled 47 the 24-hour night-and-day cycle(循环). We feel 48 and fall asleep at night and become 49 and energetic during the day. If the 24-hour cycle is 50 most people experience unpleasant 51 . For example, people who are not 52 to working at night can find that 53 of sleep causes them to 54 badly at work.
55 the daily cycle of sleeping and 56 , we also have other cycles which 57 longer than one day. Most of us would 58 that we feel good on some days and not so good on 59 ; sometimes our ideas seem to flow and at other times, they 60 do not exist.
41. A. anxious B. careful C. able D. proud
42. A. around B. inside C. between D. on
43. A. rise B. supply C. use D. movement
44. A. showing B. treating C. changing D. making
45. A. idea B. opinion C. story D. invention
46. A. difficult B. exciting C. interesting D. surprising
47. A. from B. over C. by D. during
48. A. dull B. dreamy C. tired D. peaceful
49. A. regular B. excited C. clear D. lively
50. A. shortened B. disturbed C. reset D. troubled
51. A. moments B. senses C. feelings D. effects
52. A. used B. allowed C. expected D. prevented
53. A. miss B. none C. need D. lack
54. A. show B. perform C. manage D. control
55. A. With B. Except C. As well as D. Rather than
56. A. waking B. moving C. living D. working
57. A. repeat B. remain C. happen D. last
58. A. believe B. agree C. realize D. allow
59. A. others B. the other C. all other D. other
60. A. only B. just C. still D. yet
41—45 CBADA 46—50 DCCDB 51—55 CADBC 56—60 ADBAB
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