There are two fish in the river
提起fish,它给给人们的第一印象便是指“鱼”,实际上它的用法并非非如此简单,fish用作可数名词指“鱼的条数”时单数和复数形式相同(two fish两条鱼),指“鱼的种类”时复数形式才为fishes(two fishes两种鱼)!fish用作不可数名词时无复数形式。应作“鱼肉”解(Help yourself to some fish.随便吃些鱼、)。fish用作动词时、它的含义又与“钓(捕)鱼”有关(go fishing去钓鱼)、。