of後面加單數還是複數 half

half of 後跟可數名詞的單數複數均可。

An half of a pencil is here.

這有半截鉛筆。（可以接可數名詞單數）

Half of them are gone.

她們之中的一半人走了。（可以接可數名詞複數）。

Half (of) the students in that school are from the countryside.

那個學校有一半學生來自農村。(of+名詞時，of可以省略)。

Only half of them came last Sunday.

上星期天他們中只有一半人來了。

half of後面加單數也可以接複數，中文意思是“……中的一半”

阿森納隊在上半場比賽中佔據上風。Arsenal dominated the first half of the match.

行政事務佔用了我一半的時間。Administrative work occupies half of my time.

上半場比賽打得十分沉悶。The first half of the game was pretty dull.