large amounts of 和a large amount of谓语动词

1、a large amount of +不可数名词，谓语动词用单数； 例：A large amount of money was spent on the bridge. 在这座桥上花了大量资金。

As a result, a large amount of denim waste still gets into the environment. 因此，大量的牛仔废料仍然会进入环境中。 A large amount of public funds is spent on roads. 大量的公共资金用于道路建设。

2、large amounts of+ 不可数名词， 谓语动词用复数。 例：Large amounts of money were spent on the bridge. 在这座桥上花了大量资金。

With the use of fire and grindstones, large amounts of cereals were consumed and transformed into staple foods.

由于使用火和磨石，大量谷物被消耗并转化为主食。

3、偶尔也可见到a large amount of +复数可数名词的用法，large amounts of不能加复数可数名词。

The shopkeeper had a large amount of oranges in his storeroom. 店主在货仓里存有大量橙子。——摘自《朗文当代高级英语词典》 Even small amounts of these substances are known to cause skin problems. 我们知道这种物质即使是一丁点也会损害皮肤。——摘自《剑桥高阶英词典》