The number of后面所用的名词为复数，但谓语动词用单数。eg.The number of the students in our school is three hundred.
the number of用法及例句the number of…意思是“……的数字/数目”，介词of同其后名词构成介词短语，修饰the number.当它作主语时，谓语动词用单数。
1、The number of business failures has risen.
企业倒闭的数量增加了。
2、The number of independent firms decreased from 198 to 96.
独立公司的数量从198个减少到了96个。
3、The drug increases the number of red cells in the blood, enhancing oxygen uptake by 10 percent.
这种药增加了血液里的红细胞数量，从而将摄氧量提高了10%。
4、The number of unemployed people in Poland has grown by more than a quarter in the last month.
上个月，波兰的失业人数增长超过了1/4。
5、After eleven days of growth the number of sprouts was counted.
经过11天的生长后，对新芽的数量进行了计数。
