food,salad,ice cream的复数是形式是什么

Food, salad, ice cream 都有复数的! 但一般加复数时会变成尊属性词.
例句:
Books are food for mine. 书是心灵的食粮.
Milk is the natural food for babies. 牛奶是婴孩的天然食品.
Many sweet foods are on sale in the store. 这家商店在廉价出售多种甜食.
I am not fond of salad. 我不喜欢吃色拉.
Vegetables are usually added into salads. 色拉一般都加有蔬菜的.
The child ate three ice creams today. 那孩子今天吃了三个冰淇淋.
Mother knows how to make ice cream. 母亲会做冰淇淋.