[文题]阅读下面的材料,按照要求作文。几位朋友说起这样一段探险经历:他们无意中来到一个人迹罕至的山洞。因对洞中环境不清楚,便点燃了几支蜡烛靠在石壁上。在进入洞穴后不久,他们发现了许多色彩斑斓的大蝴蝶安静地附在洞壁上栖息,他们屏住呼吸,放轻脚步,唯恐惊扰了这群美丽的精灵。数日后 [Article] read the following materials, in accordance with the requirements of writing. A few friends talk about such an expedition: they inadvertently came to an inaccessible cave. Because of the unknown environment in the hole, they lit a few candles leaning on the stone wall. Shortly after entering the cave, they discovered that many colorful butterflies were quietly attached to the walls of the cave. They held their breath and relaxed, lest they should disturb these beautiful elves. A few days later