1、指示代词用法：

(1) 作主语：

This is the way to do it. 这事儿就该这样做。

This is what I want to emphasize. 这就是我想强调的。

This is a chair. 这是一把椅子。

That is Linda's book. 这是琳达的书。

Whose pens are those? 那些是谁的钢笔。

(2) 作宾语：

We should always keep this in mind. 我们应当经常记住这一点。

I like this better than that. 我喜欢这个甚至那个。

Have you read this? 你读过这个吗?

I like these but she likes those. 我喜欢这些，而她喜欢那些。

(3) 作表语：

My point is this. 我的观点就是如此。

Her plan is this. 她的计划是这样的。

His worries are those. 他的烦恼就是那些。

(4) 作定语：

You can't swim at this time of the year. 你不能在这个时候游泳。

I don't like that man. 我不喜欢那个人。

We must get to know these tricks of theirs. 我们必须懂得他们这一套鬼花招。

2、指示代词的用法区别

(1) this和these一般指在空间和时间上较近的事物，that和those一般指在空间和时间上较远的事物。

例：This is a map of China and that is a map of the world.

这是一张中国地图，那是一张世界地图。

Please come this way. We'll go in by that door. 请这边走，我们从那扇门进去。

In those year they led a hard life. 在那些岁月里，他们生活得很艰难