a great deal of, a lot of, plenty of的区别

a great deal of, a lot of, plenty of这三个短语都有许多的意思，具体有什么用法上的不同呢，今天我跟大家讲解一下。

1、a great deal of...大量的...,许多...，后面接不可数名词，谓语动词用单数。例句如下：

A great deal of money was spent.花了大笔的钱。

A great deal of water is needed.需要大量的水。

2、a lot of...许多...，通常用于口语，后面接复数名词或不可数名词，谓语动词用单数还是复数由后面接的名词形式决定。例句如下：

A lot of students are leaving soon.很多学生即将离去。

She seems to run into a lot of trouble at her job.她在工作上似乎遇到了许多麻烦。

3、plenty of...大量的...,许多...，后面接复数名词或不可数名词，谓语动词用单数还是复数视后接的名词形式而定。必须注意的是，plenty of前面不加a，plenty本身也不用复数形式。例句如下：

There are plenty of girls dancing in the hall.许多姑娘在大厅里跳舞。

There is plenty of sugar in the coffee.咖啡里放了不少糖。