these和those的区别：中文含义不同、词性不同、用法不同。these可作代词、形容词，指的是“这些”，指代眼前的，或较接近的，不管时间还是距离上的；those作为代词，指的是“那些”，用来对已经提及的事物作补充说明，指代远处的。

1、these可作代词，基本含义为这些;这些，他们(用以说明或询问身份)。

例句：These are my children.

这些都是我的孩子。

This information is only raw data and will need further analysis.

这些资料只是原始数据，还需要进一步进行分析。

These problems are all in your mind, you know.

你知道，这些问题都只是你的凭空想象而已。

Do you think these latest changes will do any good?

你认为最近这些变化有什么作用吗？

One of these men may have been the murderer.

他们其中有一个人可能是杀人凶手。

These young fellows are all in a flurry.

他们全都是一些毛毛楞楞的小伙子。

These Hunanese are fond of hot food.

他们湖南人喜欢吃辣的。

2、these可作形容词，基本含义为这些(的)。

例句：I've been getting these pains in my chest.

我胸部一直有一些疼痛感。

I was on my own and these fellows came along towards me

我正一个人走着，一些家伙朝我走过来。

Some of these droughts must have been severe.

有一些旱灾想必是严重的

1、those可作代词，基本含义为那些;用来对已经提及的事物作补充说明;人们;人。

例句：The interests he is most likely to enjoy will be those which enable him to show off himself or his talents...

他最有可能感兴趣的就是那些能让他表现自己或炫耀才华的事情。

A little selfish behaviour is unlikely to cause real damage to those around us...

稍许自私的行为不会对我们身边的人造成实质性伤害。

She of all people should know the answer to that.

在所有的人中，唯有她最应知道那个问题的答案。

Most people said that pay was their main motivation for working.

大多数人说赚取报酬是他们工作的主要动机。

First try to do something that is within your scope.

你先试着做一件自己力所能及的事。

Market research has shown us that people want quality, not just low prices.

市场研究告诉我们，人们需要的是高质量，而不仅仅是低价格。

What became of that student who used to live with you?

以前和你住在一起的那个学生后来怎么样了？