At the beginning of this century, medical scientists made an interesting discovery（发现）: we are built not just of flesh (肌肉) and blood but also of time. They were able to show that we all have a ‘body clock’
____ us, which controls the
____ and fall of our body energies. It can
____ us different from one day to the next.
The idea of a ‘body clock’ should not be too
____ because the lives of most living things are controlled by the 24-hour night-and-day cycle (循环). We feel
____ and fall asleep at night. We become
____ and energetic during the day. Most people will have a bad feeling if the 24-hour cycle is
____ For example, people who are not used to working at night can find that lack (缺少) of sleep causes them to
____ badly at work.
____ the daily cycle of sleeping and waking,we also have other cycle which lasts longer than one day.Most of us would
____ that we feel good on some days and not so good on others;sometimes our ideas seems to be so active and at other times,they are not.
【小题1】| A．beside | B．inside | C．outside | D．under |
【小题2】【小题3】| A．show | B．treat | C．make | D．change |
【小题4】| A．difficult | B．natural | C．surprising | D．frightening |
【小题5】| A．quiet | B．tired | C．comfortable | D．cheerful |
【小题6】| A．regular | B．serious | C．lively | D．clear |
【小题7】| A．disturbed | B．pushed | C．restarted | D．troubled |
【小题8】| A．perform | B．suffer | C．count | D．control |
【小题9】| A．With | B．As well as | C．Except | D．Rather than |
【小题10】| A．afford | B．admire | C．advise | D．Agree |
