请问number、quantity和amount 有什么区别?（希望具体点的答案）我是想弄清楚，当他们都作为代词时的区别。 英语
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【答案】 a great number of+可数名词复数,
如：I have a large number of books.
a large amount of/amounts of + 单数名词,
如：We need amounts of money to buy the house.
a great deal of+单数名词,A great deal of time is needed.
a large quantity of+ 可数名词复数/不可数名词,
如：A large quantity of students are planting trees in the park.
A large quantity of water is needed in th ehot summer.
但quantities of 作主语时,谓语要用复数,如：
Quantities of water are needed in hot summer.