Are there any ...? 可数
Is there any...? 不可数
There is some bread on the table.
There isn’t any bread on the table.
Is there any bread on the table?
Yes,there is. No,there isn’t.
What's on the table?
Where is the bread?
There are some hammers behind that box.
There aren’t any hammers behind that box.
Are there any hammers behind that box?
Yes,there are. No, there aren’t.
What are behind that box?
Where are the hammers?
可数名词 单数变复数规则：
1. 直接+s
2. 以s、sh、ch、x、生命o结尾，+es
3. 以辅音+y结尾，变y为i，+es
4. 以f/fe结尾，变f/fe为v，+es
5. 特殊情况 man-men、tooth-teeth、child-children、sheep-sheep
