Question

完形填空。

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   1   to show that we all have a 'body clock'   2   us, which controls the   3   and fall of our body energies,   4   us different from one day to the next.      The   5   of a 'body clock' should not be too   6   since the lives of most living things are controlled   7   the 24-hour night-and-day cycle (循環(huán)). We fell   8   and fall asleep at night and become   9   and energetic during the day. If the 24-hour cycle is  10  most people experience unpleasant  11 , For example, people who are not   12  to working at night can find that  13  of sleep causes them to  14  badly at work.        15  the daily cycle of sleeping and  16 , we also have other cycle which  17  longer than one day. Most of us would  18  that we feel good on some days and not so good on  19 ; sometimes our ideas seem to flow and at other times, the  20   do not exist.

(     )1. A. anxious    (     )2. A. inside    (     )3. A. movement   (     )4. A. showing    (     )5. A. invention   (     )6. A. difficult   (     )7. A. from      (     )8. A. dull      (     )9. A. regular    (     )10. A. disturbed (     )11. A. moments   (     )12. A. prevented (     )13. A. miss      (     )14. A. perform   (     )15. A. With      (     )16. A. working   (     )17. A. repeat    (     )18. A. agree    (     )19. A. other    (     )20. A. just      B. able      B. around    B. supply    B. treating   B. opinion    B. exciting   B. by        B. tired                   B. excited    B. shortened   B. feelings   B. allowed    B. none      B. show      B. As well as B. moving    B. remain    B. believe    B. the other   B. only      C. careful   C. between   C. use       C. making     C. story     C. surprising C. over       C. dreamy     C. lively                 C. reset     C. senses     C. expected   C. lack       C. manage     C. Except     C. living     C. last      C. realize   C. all other   C. still     D. proud            D. on               D. rise             D. changing         D. idea             D. interesting      D. during           D. peaceful         D. clear            D. troubled         D. effects          D. used             D. need             D. control          D. Rather than    D. waking           D. happen           D. allow          D. others           D. yet

Answer 1

1-5: BADCD       6-10: CBBCA      11-15: BDCAB      16-20: DCADA