当"ne and a half apples" & "an apple and a half" 做主语时,谓语动词用单数还是复数啊?

请问大家oneandahalf后面

单数。 表示数量的one and a half后，名词要用复数形式，但是其短语作主语时，谓语动词用单数形式。例如： One and a half bananas is left on the table。 One and a half apples has been eaten by the boy． One and a half hours is enough for me to finish the composition。 详情请看我的共享文件：高考备考指导主谓一致 。txt。

  单数。 表示数量的one and a half后，名词要用复数形式，但是其短语作主语时，谓语动词用单数形式。例如： One and a half bananas is left on the table。
   One and a half apples has been eaten by the boy． One and a half hours is enough for me to finish the composition。
   详情请看我的共享文件：高考备考指导主谓一致 。txt。收起