Large quantities of money are spent on the subject.
这个句子中要以quantities为中心词,所以用are,如果quantities换成amounts,也把amounts看做中心词吗?

像这些表数量的词的短语有哪些像quantity一样后面谓语动词由它的形式决定单复数,而不是以加的可数或不可数名词来决定?

1.Large quantities of money are spent on the subject.
这个句子中要以quantities为中心词,所以用are,如果quantities换成amounts,也把amounts看做中心词.

2.*(large)quantities of 修饰可数名词复数或不可数名词,其短语做主语时,谓语动词典一般用复数.
eg. Large quantities of food/nuts were on the table.
*(large) amounts of 修饰不可数名词，其短语做主语时,谓语动词典一般用复数.
eg. Large amounts of money are spent on the subject.

3.*a large quantity of +名词（不可数名词或可数名词）　构成的短语做主语时，
就近原则，　谓语动词要和ＯＦ　后面的名词的数保持一致，因为短语中ＯＦ后面的名词是中心词，而其他量词是修饰语
eg. A large quantity of food was on the table.
A large quantity of shirts were on sale.

*a large amount of + 不可数名词，的短语做主语时，谓语用单数．
eg.A large number of damage was done in a very short time.

4.the amount of +　不可数名词　和　the quantity of +　可数名词复数／不可数名词　的短语做主语时，谓语用单数
eg. The amount of money is spent on the subject.

和其用法差不多的词有number
a number of + 可数名词复数，谓语用复数．
eg. A number of students have gone to the library.
the number of + 可数名词复数，谓语用单数．
eg. The number of students in our school has gone to the library.