Give me a book please, Jane.

Which book?

This one?

No, not that one. The red one.

This one?

Yes, please.

Here you are.

Thank you.

 

 

特殊疑问词 Which 用来问事物！意思是：哪一个。

 

one：不定代词中的一种，可以指代人，也可以指代物，指代物体时，经常替代同类事物中的一个

One ：课文中代指book

The：定冠词，特指某样事物

Here you are.=Here it is.   区别在于

Here you are 强调人，强调对方，

Here it is 强调东西