误She added two ices to the drink.
正She added two cubes of ice to the drink.
析ice泛指“冰块”时是不可数名词,没有复数。“一块冰”可以说a piece〔cube〕 of ice。
误I have already taken two ice.
正I have already taken two ices.
析ice作“一块冰淇淋”解时是可数名词,有复数形式。