quantity的经典引文

1. [U]量,大小,重量 that which makes it possible to measure things through having number, size, weight, etc.
2. [C][U]数目,数量 number or amount, especially a large one

1.quantity：qty; 定额，数量

2.quantity：quant; 数量性

unknown quantity

难以预测的人〔事〕 unpredictable person or thing

• double the quantity使数量翻一番
• produce huge quantity大量生产

• certain quantity若干数量
• great quantity大量
• large quantity相当大的数量
• small quantity小量
• unknown quantity未知量,难以预测的人或事

• in quantity数量上
• in great quantity大量

• a quantity of一定量的,一些,许多
• quantity of electricity电量
• quantity of heat热量

你认为数量和质量哪个更重要?

误 Which do you think is more important, quantities or qualities?

正 Which do you think is more important, quantity or quality?

你如果大量采购东西,就能节省很多钱。

误 You can save a lot if you buy thing in quantities.

正 You can save a lot if you buy thing in quantity.

析 quantity作“数量”解时是不可数名词。

船里有大量的鱼。

误 There are a large quantity of fish in the boat.

正 There is a large quantity of fish in the boat.

印刷了大量的书。

误 A large quantity of books was printed.

正 A large quantity of books were printed.

这个镇去年浪费了大量的水。

误 Quantities of water was wasted in this town last year.

正 Quantities of water were wasted in this town last year.

就在圣诞节以前还有过许多购买东西的顾客。

误 There was large quantities of shoppers just before Christmas.

正 There were large quantities of shoppers just before Christmas.

析 表示“大量”的有两种形式:a large quantity of和large quantities of。a quantity of接不可数名词时,谓语动词用单数形式,接可数名词复数时,谓语动词用复数形式; quantities of无论是修饰不可数名词,还是可数名词复数,谓语动词都要用复数形式。