amount用作名詞其意為“數(shù)量”、“金額”“總額”等，通常用于an amount of，a(great，large)amount of，amounts of這類結(jié)構(gòu)，其后通常接不可數(shù)名詞。

a large numberof和a large amount of的區(qū)別

①所能修飾的名詞有區(qū)別

a large number of只可以修飾可數(shù)名詞復數(shù)形式；a large amount of修飾不可數(shù)名詞。

例句：I have a number of letters to write today.

今天我有好多信要寫。

I spent a large amount of my time on this work.

我在這項工作上花了不少時間。

②謂語動詞的形式有區(qū)別

a large number of 修飾的詞作主語時謂語用復數(shù)形式；a large amount of 修飾的詞作主語時謂語用單數(shù)形式。

例句：A large number of books are missing from the library.

圖書館的許多書不見了。

A large amount of damage was done in a short time.

短期內(nèi)造成大量損害。

注意：The number of的意思是“...的數(shù)量”，修飾的可數(shù)名詞作主語時謂語用單數(shù)形式；amounts of的意思是“大量的”，修飾的不可數(shù)名詞作主語時謂語用復數(shù)形式，即謂語的數(shù)取決于 amount 的數(shù)。

常見修飾短語

只能修飾可數(shù)名詞的

a large/great/good number of,a good/great many,dozens of,scores of,quite a few

只能修飾不可數(shù)名詞的

a great deal of,a large amount of,quite a little,a large sum of

既可修飾可數(shù)也可修飾不可數(shù)名詞的

plenty of,a lot of,lots of,a large quantity of,a good supply of