Sheep为什么没有复数：英文单词sheep是单复数同形的名词，所以单数形式和复数形式都是sheep。sheep作为名词，是可数名词，基本含义为“羊&rdquo；“绵羊&rdquo；引申义为“盲从者&rdquo；“随波逐流者&rdquo；

Sheep作为可数名词，意为羊、绵羊、盲从者、随波逐流者，复数形式为Sheep。例句有：

1、Sheep were grazing in the fields.

羊在野地里吃草。

2、The sheep had got out and were loose on the road.

那些羊跑出来在路上自由自在地走动。

3、The path was no better than a sheep track.

那条小路简直就像是羊肠小道。

4、The sheep are allowed to roam freely on this land.

绵羊可以在这片地上自由走动。

5、The island is populated largely by sheep.

这个岛的主要生物是绵羊。

6、The first task was to fence the wood to exclude sheep

第一项任务就是把树林围起来不让羊进去。

7、Sheep's milk is produced in much the same way as goat's milk.

绵羊奶和山羊奶的生产过程差不多。

8、Sheep were munching their way through a yellow carpet of leaves.

绵羊边吃边走，穿行在厚厚的一层黄色落叶中间。

9、Sheep kept getting tangled up in it and eventually the wire was removed

不断有绵羊被那根铁丝缠住，最后就把它拆掉了。

10、Stefano used a motor cycle to herd the sheep

斯特凡诺骑一辆摩托车放羊。