① more than a中的a指的是“一個,任何一個”,表示的是類別。
He will stay here for more than a mouth. 他將在這里待一個多月。(超過30天)
② more than one中的one強調(diào)數(shù)量是“一個”,而不是“兩個,三個,四個”。
比較
It took her more than an hour to get there. 到達那里花了她一個多小時。(一個小時多一點)
It took her more than one hour to get there. 到達那里花了她不止一個小時。(可能兩個小時,三個小時)
He has a sister who studies in Fudan University. 他有一個妹妹在復(fù)旦大學學習。(可能有幾個妹妹)
He has one sister who studies in Fudan University.(表示只有一個妹妹)