1.a number of 一些修饰可数名词,就像some ,many,lots of,a lot of那样的。注意a number of修饰的可数名词要用复数形式，be动词也要用复数（即are,具体因时态而定）！可以变成a small/large/great number ofa small number of=somea large number of=manye.g.A large number of students are ill these days because of the swine flu.这些天我们班的许多学生都因为猪流感而病了.(翻译系本人友情提供！）2.the number of ……的数量...
a number of 许多，一些，相当于a lot of ，some。There are a namber of ants on the ground.地上有很多蚂蚁 2. the number of ……的数量 The number of the apples is 40 苹果的数量是40 a number of是大量的 等于a ...
number of +名词复数 =a lot of =los of+名词复数 the number of+名词复数，但动词用第三人称单数 例句：The number of visitors to Frinley has now increased.（has就是第三人称单数） Mike is a number of my frien...
