短文填词(共10题;每题1分,满分10分)
阅读下面短文，根据以下提示：1）汉语提示，2）首字母提示，3）语境提示，在每个空格内填入一个适当的英语单词,所填单词要求意义准确，拼写正确。
One day while walking through the woods, an old man found a cocoon(茧) of a butterfly. Heb  it home. A few days later, a small opening appeared, he watched the butterfly for several hours as it struggled to force its body through that little hole. Then it seemed to stop  (取得)any progress .It appeared as if it could hardly go further .Then the man decided to h  the butterfly, so he took a p  of scissors to cut the cocoon. The butterfly then came out easily.
But it can never    (飞).The man didn’t understand the struggle required for the butterfly to get through the tiny opening was just the nature's way of forcing fluid (液体) from the body of the butterfly     its wings, which would be ready for flight once it achieved its  (自由)from the cocoon.
Sometimes struggles are exactly    we need in our life. If we were allowed to go through our life  any struggling, it would weaken us seriously .We would not be as   (强壮) as what we could have been.