an amount of 和 the amount of的区别

the amount of   短语中心词是amount，用单数；

A 1972 agreement between Canada and the United States reduced the amount of phosphates that municipalities had been allowed to dump into the Great Lakes.

Contrary to earlier conjectures, it may be that increased atmospheric carbon dioxide as a result of burning fossil fuels would cool the globe by reducing the amount of solar energy absorbed by snow.

An amount of 短语中心词在后面被修的名词，一般是不可数名词，用单数。不敢肯定：续问：其后面一般不用可数名词？

Each major storm causes billions of dollars worth of damage in such coastal areas, after which owners who have insurance are able to collect an amount of money sufficient to recoup a high percentage of their losses.

a  amount of  表量多，后跟不可数。the amount of 有表总数，总量的意思。通常+不可数，但也会有复数形式出现（有待更多的考证）。

In an invoice the amount of money should be written both in words and in figures.

The amount of his remarks is that ...remarks复数，但意思上不是强调remarks的数量，而是remarks总的意思。

写了些皮毛，还需要再总结。

我认为是这样的，即使日常应用中有特例，GMAT应该也不会把这种大是大非的问题模糊化.

a large amount of money; an amount of diplomacy;

I saw a great amount of them. (是说见的多，不是人数多).