【作文题】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,发现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,唯恐惊扰了这美丽的精灵。但数日后再去,却发现这些大蝴蝶已不在原地,而是远远地退到了山洞的深处。大家若有所悟,那里的环境也 [Essay question] 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, many colorful butterflies were found quietly attached to the walls of the cave. They hold their breath and ease, lest they disturb this beautiful spirit. But a few days later, they found that these big butterflies were no longer in place, but far retreated to the depths of the cave. If everyone enlightenment, where the environment is also