1、量词用来表示人、事物或动作的数量单位的词；

2、举例如下：a drop of water 一滴水；a flood of moonlight 一片月光；a flood of light 一大片强光；a flood of people人潮如涌；a flood of words口若悬河；a flood of tears泪如泉涌；a wisp of smoke 一缕烟；a wisp of a smile 一丝微笑；a pane of glass 一块玻璃；a layer of rock 一层岩石。