题目内容：

阅读下面材料，根据其内容和所给段落开头语写两段，使之构成一篇完整的短文。续写的词数应为150左右。

There was once a wonderful old man who loved everything: animals, spiders, insects and allsorts of living things.

One day while walking through the woods, the old man found a cocoon(茧) . He decided to take the cocoon home to watch its beautiful transformation from a little cocoon to a beautiful butterfly.

A few days later, the cocoon started to move. It moved frantically! He sat and watched it struggle and struggle for several hours. But it seemed not to make any progress. Then the old man felt sorry for the little butterfly inside, and rushed to its aid. With a pair of scissors and gently, he cut a little opening in the cocoon so the butterfly could come out. And then the butterfly came out of its cocoon. It had a swollen body and small, fragile wings, but it never was able to fly.

He was quite puzzled. Had he accidentally killed the little butterfly? No, it was still moving a little bit. Maybe it was sick. Then he decided that the best thing he could do for the butterfly was to place it gently back into its cocoon. He did so, and placed a drop of honey on it to seal the cocoon, leaving the butterfly to nestle (筑巢) in its natural state.

The next day he noticed that the cocoon was moving again. It struggled and struggled. Finally the butterfly broke free from its cocoon and stretched its wings out. Its beautiful wings were filled with wonderful colors! It took off! It was flying!

The wonderful butterfly flew and flew till it was almost out of the old man’ s sight. What a joy, he exclaimed! But then he started to think: what did I do wrong by trying to help that beautiful little butterfly out at first?

Finally the answer came out.

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Sometimes struggles are exactly what we need in our life.

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