cattle ¹

cattle，如同 people 和 police 一样，是个无标记复数名词，因此其谓语动词照例要用复数：

1. All his cattle were grazing in the field. 他所有的牛都在田野里吃草。

2. These cattle are from Holland. 这些牛是从荷兰来的。

poultry 作“家禽”解时,也是个无标记复数名词:

1. The poultry are being fed. 家禽正在吃食。

2. Our poultry are kept at the bottom of the garden. 我们的家禽养在花园的尽头。