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.
| 小题1: | | A．anxious | B．careful | C．able | D．proud |
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| 小题2: | | A．around | B．inside | C．between | D．on |
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| 小题3: | | A．rise | B．supply | C．use | D．movement |
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| 小题4: | | A．showing | B．treating | C．changing | D．making |
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| 小题5: | | A．idea | B．opinion | C．story | D．invention |
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| 小题6: | | A．difficult | B．exciting | C．interesting | D．surprising |
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| 小题8: | | A．dull | B．dreamy | C．tired | D．peaceful |
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| 小题9: | | A．regular | B．excited | C．clear | D．lively |
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| 小题10: | | A．shortened | B．disturbed | C．reset | D．troubled |
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| 小题11: | | A．moments | B．senses | C．feelings | D．effects |
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| 小题12: | | A．used | B．allowed | C．expected | D．prevented |
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| 小题14: | | A．show | B．perform | C．manage | D．control |
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| 小题15: | | A．With | B．Except | C．As well as | D．Rather than |
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| 小题16: | | A．waking | B．moving | C．living | D．working |
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| 小题17: | | A．repeat | B．remain | C．happen | D．last |
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| 小题18: | | A．believe | B．agree | C．realize | D．allow |
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| 小题19: | | A．others | B．the other | C．all other | D．other |
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