核心问题
have an eye for 与 have an eye on 在意义上是否相同?
词典解答
它们的意义完全不同。
have an eye for 是指“对……有鉴赏力(判断力)”“对……有眼光”：
She has an eye for color and style in clothes. (DAI) 她对衣服的颜色和款式很有鉴赏力。have an/one's eye on 是指“密切注意”“想得到”：
John has his eye on a scholarship so he can go to college. (DAI) 约翰想获得奖学金以便能够上大学。
练习题
请做下面的英语试题：
In the experiment we kept a watchful eye ____ the developments and recorded every detail. A. in B. at C. for D. on(全国四级,93.6-51)