第一节 完形填空（共10小题；每小题2分，满分20分）
阅读下面短文，掌握其大意，然后从21~30各题所给的A、B、C和D项中，选出最佳选项，并在答题卡上将该项涂黑。
In the United States there was an unusual tale telling of the daughter of a mechanic （技工）. One day while walking along the bank of a lake, the girl 21 to see 20 eggs laid by a wild goose. After some time the girl 22 the mother would not return to her eggs and she decided to take them home. There she carefully 23 the eggs in the heat of a lamp. Several days later the eggs broke and the baby geese came into the world.
Geese are known to take the first living thing they see as their mother. 24 , to these young geese, the girl was their mother.
As they grew, the girl was able to 25 her birds to run across the grass, but she could not teach them to 26 . The girl became increasingly worried about this, both when 27 and in her dreams. Later, she had an idea: She would pilot a plane to guide them in 2 8 . She asked her father for a plane and he assembled（组装）a small aircraft for her.
Caring about her safety, the father decided to pilot the plane himself. However, the birds did not 29 or follow him, and instead slept in the grass.
One day, the girl climbed into the plane, started it and soon left the 30 . Seeing their mother take to the air, the birds eagerly flapped（拍打）their wings and set out. She flew the plane freely in the sky, her young birds following.
21. A. managed B. attempted C. happened D. supposed
22. A. realized B. expected C. imagined D. admitted
23. A. placed B. protected C. treated D. examined
24. A. But B. Also C. Thus D. Still
25. A. ask B. lead C. want D. allow
26. A. fly B. race C. swim D. sing
27. A. asleep B. away C. around D. awake
28. A. sky B. heaven C. flight D. plane
29. A. respect B. remember C. recognize D. receive
30. A. house B. floor C. water D. ground