名词 + of 构成的量词

英语中有不少名词可以加of来表示数量。

1) 一些表示数量的名词与of 搭配形成量词
There are a number of possible solutions. 有几个可能的解决方案。
The students will have plenty of time for fun after the final exam. 期终考试后学生会有很多时间玩乐。
It is important for your body to receive a sufficient amount of sunlight. 让身体接收足量的阳光很重要。
Finally I decided to stay there for a couple of days. 最后我决定呆在那里几天。

更多这类结构如下：
a lot of 许多
a small amount of 少量
a good/great many of 大量，很多
a great quantity of 大量,很多
a small quantity of 少量
a heap of 很多，一大堆
a ton of 大量

这些名词中有些可以用复数形式来表示“大量”的意思，如: lots of; numbers of; heaps of; tons of; quantities of
Lot of crude oil was exported from this country in the last three years. 过去3年中这个国家出口了大量原油。
We have heaps of work to do. 我们有许多工作要做。

2) 一些名词与 of 搭配表示少量
I think she might have lost a bit of weight. 我想她体重可能减轻了一些。
Put a pinch of sugar in the coffee. 在咖啡里加一小撮糖。
This room will look better with a spot of paint. 加上一点油彩可以让这个房间增色不少。
There isn't a grain of truth in his statement. 他的声明里没有一点是真实的。

3) 一些表示容器的名词与of搭配表示数量，如:
a cup of coffee 一杯咖啡
a box of candy 一盒糖果
a can of beer 一罐啤酒
a bag of wheat 一袋小麦
a bowl of rice 一碗饭
a bottle of wine一瓶葡萄酒
a bucket of water 一桶水
a spoon of salt 一匙盐
a glass of lemon一杯柠檬汁
a pack of cigarettes 一包香烟
a pot of jam 一罐果汁
a basket of apples 一筐苹果
a tube of toothpaste 一根牙膏

[注]有些名词还可以加-ful，如:
a spoonful of soup 一匙汤
a basketful of vegetables 一篮子蔬菜

4) “名词 + of”有时表示一群人或一群动物，如:
a group of children 一群小孩
a gang of workers 一伙工人
a troop of soldiers 一队士兵
a flock of sheep一群羊
a swarm/cloud of locusts 一大群蝗虫
a herd of elephants 一群大象

5) 还可用一些表示形状的名词与of搭配, 通过这些物体的形状、大小来表示量的多少。
He bury himself under a mountain of papers all day. 他整天专心研看大量论文。
A thread of light emerged from the keyhole. 从钥匙孔透出一线亮光。
Streams of cars were driving into the city every day. 每天都有长串长串的汽车开进城里去。