首先我们来看下an average of和the average of的大致意思:
an average of:词性为短语,an + average + of
the average of:词性为短语,the + average + of
通过下面的表格我们了解下an average of和the average of的含义、发音和用法
接下来让我们看下an average of和the average of的用法区别:
1.语法结构:an average of后接可数名词复数形式,the average of后接可数名词单数或不可数名词
例子:
- an average of scores
(平均分数)
- the average of temperature
(平均温度)
2.范围限定:an average of表示平均数是集合中的一个值,the average of表示平均数是特定集合的值
例子:
- an average of age
(平均年龄)
- the average of salary
(平均工资)
3.语义强调:an average of强调个体之间的差异,the average of强调整体的平均水平
例子:
- an average of scores
(平均分数)
- the average of performance
(平均水平)
4.逻辑关系:an average of表示平均数是集合中各个值的简单平均,the average of表示平均数是由特定集合中的值计算得出
例子:
- an average of grades
(平均成绩)
- the average of yield
(平均产量)