this, that, which, these, those, which are指什么？

this, that, which, these, those 和 which 都是英语中的指示代词,用来指代前面提到的人或事物。它们的区别如下:

this 和 these 用来指代说话人附近或刚刚提到的单数或复数的人或事物。

例句:

This book is mine. (这本书是我的。)

These apples look delicious. (这些苹果看起来很好吃。)

that 和 those 用来指代距离说话人较远的或先前提到的单数或复数的人或事物。

例句:

That building is very tall. (那栋建筑非常高。)

Those books are heavy. (那些书很重。)

which 用来指代先前提到的事物,通常用来引导定语从句。

例句:

The book, which I bought yesterday, is very interesting. (我昨天买的那本书非常有趣。)

that 也可以用来引导定语从句,指代先前提到的事物。

例句:

The book that I bought yesterday is very interesting. (我昨天买的那本书非常有趣。)

which 和 that 在定语从句中的区别:

which 更加正式。

that 不能用在非限定性定语从句中。