many用來(lái)修飾復(fù)數(shù)可數(shù)名詞，表示許多的意思，與few（少數(shù)）的意思相反。而much則用來(lái)修飾不可數(shù)名詞，表示量或是程度，與little（少量）的意思相反。
如：How many people are there in your family? 你們家有幾個(gè)人？
How much money did you spent on it? 你在這上面花了多少錢(qián)？
many和much都可以與more連用，但區(qū)別在于many more之后接復(fù)數(shù)名詞，much more之后接不可數(shù)名詞。
如：There have been many more burglaries this year.今年盜竊案比過(guò)去多好些。
His car cost much more money than mine.他的小汽車(chē)所花的錢(qián)比我的多得多。
much可以用在形容詞、副詞的比較級(jí)之前，但是many不可以。
如：Many of them were very tired.I don't eat much for lunch. 〔代名詞)
He is much taller than I. (副詞〕