人体英语趣说系列之pupil瞳孔瞳仁

Pupil 瞳孔，瞳仁 You surely know the word pupil. You may be a school pupil yourself. But the homonym of the word may never have occurred ato you. It denotes the part of the eye through which light passes. That is the pupil. The pupil can be narrowed or widened according to the amount of light that enters the eye. Observe the eyes of your cat in the morning at noon and in the evening, and you will notice this interesting phenomenon. 你肯定认识pupil这个词，你自己可能就是个school pupil(学生)。但这个词的同音同形异义词，你也许从不认识。它指的是眼睛中光线透过的部分，它就是pupil（瞳孔）。 随着光线进入眼睛的强度不同，瞳孔可以缩小或扩大。请在早晨、中午、晚上仔细观察你家中的猫的眼睛，你就可以觉察到这种有趣的现象。