【问】 have an eye for与have an eye on在意义上是否相同?

【答】 它们的意义完全不同。

have an eye for：“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 eye on：“密切注意”、“想得到”。

1. He would also have to convince the government that distribution to villages is essentialfor the relief to be effective，for in a civil war the government has good reason for want-ing people to congregate where it can keep an eye on them. (The Guardian)

他还必须说服政府：为了使救济有效，将其分配到村庄是必要的。原因是在内战中政府有充分的理由希望人民集中在他们能够密切注意的地方。(卫报)(译文引自《现代英语报刊阅读词典》)

2. 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。