many, much 的用法

many 和much 都表示“很多”。
many 作代词时，指代可数名词，表示人或其他东西，常作主语或宾语；作限定词时，修饰可数名词，作定语。much作代词时，指代不可数名词， much 只能指代物，不能指代人；much 作限定词时，修饰不可数名词，在句中作定语。

a. 作代词
Many of the students are from Japan. 很多学生都来自日本。
I have some classics but not many. 我有一些古典文学作品但不是很多。
Much of my money has been spent on this plan. 这项计划已经花了我好多钱。
Eat as much as you can. 你尽量吃吧。

b. 作限定词（作定语）
Do you have many friends? 你有很多朋友吗？
He didn't make many phone calls. 他没有打很多电话。
I have never seen so many stars in the sky. 我没有见过天上有这么多星星。
You have bought too much food. I can't eat them up. 你买太多吃的东西了，我吃不完。