many much a lot of用法区别和例句如下：
Is there much water in your glass?
There isn't much milk in the bottle.
Is there much snow on the mountains?
There isn't much water in your cup.
Are there many horses in the field?
There aren't many tomatoes in the bowl.
There aren't many apples in the fridge.
Have you got many friends in Roma?
3.A LOT OF
a lot of修饰可数名词复数和不可数名词，常用于肯定句。
There are a lot of eggs in the fridge.
There is a lot of milk in the pitcher.
There is a lot of sand in my pockets.
There are a lot of writers but there aren't many readers.
注意：我们也用lots of来代替a lot of，尤其是在口语中，它们的意思没有区别。