scanning和skimming的区别是意思不同、用法不同、侧重点不同。scanning意思是察看；审视；端详，侧重点是指仔细地读。skimming意思是阅读，侧重点是指粗略地读。

例句：She was nervous and kept scanning the crowd for Paul 她很紧张，眼睛不停地在人群中搜寻保罗。He raised the binoculars to his eye again, scanning across the scene.他再一次把双筒望远镜举到眼前，仔细观察整个现场。Small boys were skimming stones across the water.几个小男孩用石块打水漂。