274 feed,feed on,breed,raise和graze
① feed是及物动词,意为“喂,饲养”,强调给食,使之具备生长繁殖能力。
She is feeding the baby. 她在喂婴儿。
Has the cat been fed yet?猫喂过了吗?
He has a large family to feed. 他有一大家人要养活。
② feed sb. on sth.意为“用……喂养,给……吃”。
She feeds the baby on milk. 她给婴儿喂牛奶。
She fed her guests on the product of the garden. 她用园子里种的果蔬招待客人。
③ feed on sth.意为“以……为食,靠……维持生命”,句中主语可以是人或物。
They feed on rice. 他们以大米为主食。
Cows feed mostly on grass. 牛以食草为主。
④ breed(使)繁殖,饲养,尤指繁殖良种。
Rabbits breed very quickly. 兔子繁殖得很快。
⑤ raise指对各种生物包括人进行养育或饲养,主要是美式英语。
raise a family 养活一家人
raise cattle 养牛
⑥ graze饲养,(动物)吃草,主要指将牛羊放牧。
He's grazing the sheep in the valley. 他在山谷里放羊。