a large amount of 和 large amounts of的區別：
1、a large amount of +不可數名詞，謂語動詞用單數；large amounts of+ 不可數名詞， 謂語動詞用復數
例：A large amount of money was spent on the bridge.
在這座橋上花了大量資金。
例：Large amounts of money were spent on the bridge.
在這座橋上花了大量資金。
2、偶爾也可見到a large amount of +復數可數名詞的用法，large amounts of不能加復數可數名詞。
The shopkeeper had a large amount of oranges in his storeroom.
擴展資料
1、 amount用作名詞
其意為“數量”、“金額”“總額”等，通常用於 an amount of, a (great, large) amount of,amounts of這類結構，其後通常接不可數名詞。
註意：an amount of,a(large,great)amount of,amounts of 修飾名詞用作主語，其謂語的數取決於 amount 的數。
2. amount用作動詞
用作動詞時意為“合計” “總計 ”addup to,makesth as a total、“等於”、“意味著”be equal toor the same as sth，通常是不及物動詞，其後常接介詞 to。
註意：由於其後接的to為介詞，所以後接動詞時，該動詞要用動名詞。