thenumberof,thenumberof后是加复数形式还是单数后加?
the number of这个短语之后应该加上名词的复数形式,如果这个短语用作主语则谓语动词使用第三人称单数形式。
如:The number of private cars is increasing quickly.
thenumberof和anumberof的用法?
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 of
a small number of=some
a large number of=many
e.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.
2.the number of ……的数量
修饰了名词之后be动词要用单数,因为(从中文意思方面理解)数量就是一个数字,所以必须要用单数(即is,具体因时态而定).
e.g.The number of the students in our class is 53.
我们班学生的人数(即数量)是53.
也就是说这两个词意思不同,a number of是一些,the number of是……的数量,前者be动词用复数,后者用单数.
of有什么区别?
区别就是两者所接名词形式是不一样具体的不同如下
the amount of后接不可数名词中文意思是的数量;的总量;不可数名词;
例句
Your current account is automatically debited with the amount of your purchase.
你购物的金额会自动记入账户借方
the number of后接可数名词复数形式中文意思是
…数目;
例句
The number of reported crimes is increasing at an alarming rate.
报警案件的数量正在以惊人的速度增长。
theunmberof和anumberof的用法?
anumberof后只能接可数名词,如果在a后面再加great就变agreatnumberof就等于many(many修饰可数名词)另外还有一个thenumberof,它们的区别就是,thenumberof后面加单数动词,举个例句,Thenumberofstudentsinourclassisfifty(注意这个is是单数动词),anumberof后面加复数动词,举个例句,AnumberofstudentsinourclassarefromShanghai(注意这个are是复数动词),alotof既可接可数又可接不可数名词,另外alotof就等于lotsof
of后面是单数还是复数?
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。