On the way to school, a little boy found a cocoon(茧) of a butterfly and watched it almost every day. One day, it started to break through a small hole in the cocoon, but it 21 greatly. Finally, it seemed it couldn’t succeed.
The boy felt 22 for the butterfly because he knew it was going to die if it didn’t get out. So he ran into the house and got a pair of 23 and cut the cocoon a little. The butterfly came out and was free .
The only strange thing was that the butterfly had a swollen(肿胀的) body and dry 24 . The boy kept waiting for the swelling to go down and for the wings to grow, but 25 didn’t. The butterfly crawled around unable to 26 and then it died an early death.
Therefore, he learned that the butterfly was supposed to struggle to get out of the cocoon. In fact, the struggle to get out of the cocoon 27 the fluid out of its body and into its wings. 28 the struggle, the butterfly couldn’t grow, and would 29 fly. By trying to help the butterfly, the boy 30 hurt it.
21. A. struggled | B. shouted | C. changed | D. waved |
22. A. ashamed | B. satisfied | C. happy | D. bad |
23. A. knives | B. trousers | C. scissors | D. shoes |
24. A. wings | B. feather | C. stomach | D. legs |
25. A. it | B. you | C. they | D. he |
26. A. walk | B. fly | C. move | D. run |
27. A. pulled | B. dropped | C. pushed | D. flowed |
28. A. Without | B. By | C. With | D. For |
29. A. seldom | B. hardly | C. ever | D. never |
30. A. actually | B. gradually | C. slowly | D. generally |