A man found a cocoon of a moth. He took it home so that he could    31   the moth come out of the cocoon. On that day a small    32   appeared, he sat and watched the moth for several hours as the moth struggled to    33   the body through that little hole.
Soon it seemed to stop making any progress. It appeared as if it had    34  as far as it could and it could go no farther. It just seemed to be stuck. So the man, out of his kindness, decided to help the moth. He took a pair of scissors and cut off the    35   bit of the cocoon. The    36   then came out easily. But it had a swollen body and small, shriven（无用的） wings. The man continued to watch the moth because he expected that, at any moment, the wings would enlarge and    37   to be able to support the    38  , which would get smaller in time. Neither happened! In fact, the little moth spent the rest of its life    39   around with a small, swollen body and shriveled wings. It was    40   able to fly.
What the man in his kindness    41    was that the small cocoon and the    42   of the moth to get through the    43   opening was a way to push fluid(液体)   44   the body of moth  45   its wings so that it would be ready to fly    46   it got out of the cocoon. Freedom and  47   would come only after the struggle. By taking the moth of a struggle away, he also took away the moth’s health.
Sometimes struggles are exactly what we need in our life. If we were to    48   our lives without any difficulties, we would be disabled. We would not be as    49   as what we could have been. Give every opportunity a chance, leave no room for    50  .                

1	A, help	B. protect	C. watch	D. see
2	A. opening	B. line	C. moth	D. butterfly
3	A. push	B. draw	C. make	D. force
4	A. got	B. done	C. tried	D. struggled
5	A. covering	B. remaining	C. shell	D. skin
6	A. moth	B. butterfly	C. cocoon	D. worm
7	A. lessen	B. widen	C. expand	D. shorten
8	A standing	B. flight	C. themselves	D. body
9	A flying	B. crawling	C. walking	D. lying
0	A already	B. certainly	C. never	D. seldom
11	A shouldn’t do	B. thought	C. did	D. didn’t understand
12	A crawling	B. struggle	C. fight	D. force
13	A tiny	B. beginning	C. right	D. above
14	A in	B. on	C. by	D. from
15	A into	B. to	C. in	D. onto
16	A after	B. once	C. before	D. until
17	A courage	B. hope	C. flight	D. survival
18	A stand on	B. get on	C. go through	D. live
19	A great	B. determined	C. brave	D. strong
20	A regrets	B. death	C. failure	D. wishes