【英语知识】The number of 和A number of的用法
【英语知识】The number of 和A number of的用法
a number of 和the number of的区别和用法如下：
1、a number of意思是“一些，若干”（= some），后接可数名词复数或代词，谓语动词用复数形式。a number of…词组中还可以加入形容词表示数量大或小等（例如：a
large/small number of…许多/少数……）。
2、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。
拓展资料
a number of
1、Two significant constants have been found in a number of research studies.
若干研究已经发现了两个重要常量。
2、The research begs a number of questions.
研究绕过了一些问题。
3、There are a number of improvements; for instance, both mouse buttons can now be used
在许多地方有了改进，例如，鼠标的左右键都可以使用了。
4、This equipment has saved the lives of a number of new born children.
这套设备已经挽救了许多新生儿的生命。
5、We have lived here quite a number of years.
我们在这儿住了好些年了。
the number of
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。
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