若是half of…作主语，它后面的谓语用单数还是用复数与half of后的词汇有关。如：
Half of it was gone.
Half of them were gone.
但若是单独用的half呢？它用作主语时，后面的谓语动词用单数还是用复数？
▲Half of…作主语，谓语动词用单数还是复数与half of后所接名词的数有关：
Half of it was damaged. 它的一半都被损毁。
Half of them are there already. 他们一半人都已到达那里。
Half of the cake is given to the children. 蛋糕有一半都给了孩子子们了。
Half of the students have failed in the exam. 有一半的学生没考及格。
▲Half 单独作主语，谓语动词用单数还是复数与half 本身所指代的名词的数有关：
Of the people who work here, half are French and half are English.
All the money is here—half is for you and half is for your brother.
