一提癞蛤蟆,小朋友们都要皱眉头了。因为它的颜色和样子往往使人讨厌。但是你知道吗,癞蛤蟆是一种对人们起着相当大作用的动物,他的学名叫蟾蜍。癞蛤蟆看上去那么笨,呆头呆脑的,可是它吃害虫的本领可大了。有位科学家想把癞蛤蟆吃食物的情景用照相机拍下来,于是便在癞蛤蟆的前面摆上了它最爱吃的食物——蚯蚓。但当照相机的镜头对准 When mentioning toad, the children must frown. Because of its color and appearance are often annoying. But do you know that toad is a kind of animal that plays an important role in people, and his scientific name is toad. Toad looks stupid, dull, but its ability to eat pests can be large. A scientist wanted to take a toad to eat food scene photographed with a camera, so in front of toad put on its favorite food - earthworms. But when the camera's lens is aligned