一、阅读下面材料,按要求作文。传说中有一种鸟,它毕生只歌唱一次,但它的歌声比世界上任何生灵的歌声都悦耳。它一旦离巢去寻找荆棘树,就一定要找到才肯罢休。它把自己钉在最长最尖的刺上,在蓁蓁树枝间婉转啼鸣,它超脱垂死的巨痛,歌声胜过百鸟和夜莺,一次绝唱,竟以生命为代价! First, read the following materials and write as required. There is a bird in the legend. It sings only once in one’s life, but its song is more pleasing than any singing voice in the world. Once it leaves the nest to look for a thorn tree, it must be found before it is allowed to stop. It nails itself to the longest and sharpest thorns, twirling between the twigs and twirling. It looms over the dying great pain. The song trumps the birds and the nightingale, and a swan song sings at the cost of life!