lot, lots, a lot, a lot of, lots of等的用法

1. 用于 a lot of (=lots of)，意为“许多”，可用于修饰可数或不可数名词。

如：

We need a lot of [lots of] money.

我们需要很多钱。

He has quite a lot of [lots of] friends.

他有很多朋友。

修饰主语时，谓语的数取决于它所修饰名词的数。

如：

A lot of money was spent on it. 在它上面花了很多钱。

A lot of people were interested in it. 对此感兴趣的人很多。

2. 单独用的a lot具有以下用法：

(1) 用作主语。如：

A lot hangs on this decision. 
很多事情都取决于这一决定。

A lot will depend on how she responds to the challenge. 
在很大程度上将取决于她对这一难题的反应。

(2) 用作宾语。可用动词宾语或介词宾语。

如：

Sophia must have been through a lot.

索菲娅一定受过很多苦。

I have learned a lot from him since I have known him.

自从我认识了他，我向他学到许多东西。

(3) 用作表语。

如：

Two hundred pounds is a lot to spend on a dress.

买一件衣服要花200英镑是够多的。

(4) 用作状语。一是用于修饰比较级，二是用于修饰动词：

 ①修饰比较级，相当于much，意为“……得多”。如：

It’s a lot colder today than it was yesterday.

今天比昨天冷得多。

Houses are a lot more expensive these days.

如今的房价贵多了。

②修饰动词，一是表示程度，意为“很”“很多”“非常”等；二是表示频率，意为“经常”。

如：

He has helped me a lot. 他给予了我很大的帮助。

George smokes a lot. 乔治烟抽得很多。

I play tennis quite a lot in the summer. 夏天我经常打网球。

She is very pretty and goes out a lot.

她长得很漂亮，常常到外头玩。

在口语中，有时可用lots代替a lot。

如：

She loves him lots.

她非常爱他。

There’s lots we can do.

有许多事情我们可以做。

I eat lots less than I used to. 我吃得比从前少得多。