夏日的夜晚,树林里、草丛中经常可以看到荧光闪烁,给田野增添了一种神秘的氛围。萤火虫的生命之光为人们津津乐道,被古希腊人称为提灯夜游的诗魂。其实,萤火虫既无意与繁星争辉,也并非提灯夜游,而是在向它的情侣发出爱的信号。发光是某些生物的一种本能,有的为了求偶而发光招引异性;有些是 On summer nights, fluorescent flashes are often seen in the woods and grass, adding a mysterious atmosphere to the fields. The light of life of the fireflies is relished by the people and is called by the ancient Greeks as the poetry of the night lanterns. In fact, the fireflies have no intention of contending with the stars, nor are they flying lanterns at night, but sending love signals to its lovers. Luminescence is an instinct of certain organisms, and some of them glow for the sake of courtship; others are