sheep是可数的。
例句：
There are some sheep eating grass on the hill.
（现在分词短语）有些羊在山上吃草。
The door of the fold broke, and some sheep escaped.
栅栏的门坏了，一些羊就逃了出去。
扩展资料
There seems to be some sheep eating grass on the hill.
山上似乎有一些羊在吃草。
As sheepherders, Zang and Gu lost some sheep due to their neglect.
臧与谷两个牧羊人，他们都因疏忽而丢失了一些羊。
So the news last summer that some sheep are shrinking came as a surprise.
因此，去年夏季传出有些羊正在缩小的消息，着实令人大吃一惊。
