完形填空。阅读下面短文,  从短文后各题所给的四个选项(A、B、C和D)中,  选出可以填入空白处的最佳选项,  并在答题卡上将该项涂黑。
Six continuous days of spring rain had created a fierce and rapid river running by Nancy Brown's farm. As she tried to drive her  1   to higher ground to escape the disastrous flood, she  2  and hit her head on a  3  tree trunk. The fall knocked her  4  for a moment or two. When she came to, Lizzie, one of her oldest and   5  cows, was licking her   6   . The water was constantly  7  . Nancy got up and began walking  8  with Lizzie. The water was now waist high. Nancy's  9  got slower and slower. Finally, all she could do was to throw her anus   10   neck and try to  11 . About 20 minutes later, Lizzie managed to  12   herself and Nancy out of the rough water and onto a bit of high land, a small island now in the middle of acres of   13   water.
However, even though it was about noon, the sky was so _14_ and the rain and lightning so bad that it took   15   another two hours to discover Nancy and her cows. A(n)  16  lowered a paramedic (医务辅助人员) , who  17   Nancy to a life-support hoist (吊架). They raised her into the helicopter and took her to the school gym, where the Red Cross had  18  an emergency shelter.
When the flood died down several days later, Nancy immediately  19  the island. Lizzie was
20   . She was one of the 19 cows that Nancy lost. "I owe my life to her," said Nancy sobbingly, knowing Lizzie, which rescued her, left helplessly, leaving her a new hope to live on, for which even thanks or miss seemed "unnecessary".
11. A. sheep    B. cows     C. horses    D. cattle
12. A. shouted   B. stood     C. stopped    D. slipped
13. A. fallen    B. grown    C. hidden    D. spread
14. A. out    B. in     C. away     D. down
15. A. last    B. first     C. favorite    D. best
16. A. body    B. head     C. face     D. mouth
17. A. increasing   B. flowing    C. running   D. rising
18. A. easily    B. slowly    C. hardly    D. hurriedly
19. A. move    B. breath    C. pace    D. action
10. A. above    B. around    C. over     D. into
11. A. hang on   B. hold back    C. stretch out    D. take off
12. A. pull    B. push     C. carry     D. force
13. A. clean    B. blue    C. white     D. green
14. A. bright    B. dark     C. clear     D. rainy
15. A. rescuers   B. villagers    C. soldiers    D. policemen
16. A. lifeboat   B. helicopter   C. plane    D. ambulance
17. A. sent    B. attached   C. connected   D. dragged
18. A. worked out   B. got into   C. put down   D. set up
19. A. ran out of   B. went away from  C. went back to  D. reached out for
20. A. gone    B. existed    C. disappeared   D. approached
1—5BDAAC   6-10CDBCB   11-15 AACBA    16-20BBDCA