two thirds of the land are covered by water 这句话有何错误

two thirds of the land are covered by water 这句话有何错误
two thirds of the land are covered by water 这句话有何错误

two thirds of the land are covered by water 这句话有何错误
分数(百分数)+of+名词”结构作主语时,谓语动词的数与其中名词的数保持一致
此句中two thirds of 三分之二,做主语,
谓语动词的单复数由land决定～land 当然用is了

应将are改为is,因为land不可数名词。