a large amount of 和 large amounts of的区别

a
large
amount
of
和
large
amounts
of的区别：
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。
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。
3.偶尔也可见到其后接复数可数名词的用法，但不算普通。如：
the
shopkeeper
had
a
large
amount
of
oranges
in
his
storeroom.
店主在货仓里存有大量橙子。
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。

a
large
amount
of
和
large
amounts
of
在词义上没有区别，但在与之搭配的谓语动词上有单数和复数的差别。
Amount
是一个很有意思的单词。它用来表达“量”的概念，而且是用于表达不可数名词的“量”。然而这个词本身却是可数的，而且用在句子中会改变所描述的不可数名词，使其变成可数的语法形式与谓语动词进行搭配：
My
money
was
wasted.
A
large
amount
of
money
was
wasted.
Large
amounts
of
money
were
wasted.
用于修饰
amount
的形容词要用
large/small，而不能用
big/little：
We
used
only
a
small
amount
of
water.
They
gave
out
large
amounts
of
food.