代词的专项讲解

1，人称代词：就是代替人的称呼的词语。

主格的位置：就是在动词的前面，或者在句首。

例如：He is a good boy.

宾格的位置：就是在动词的后面或者在介词的后面。

例如: His father likes him very much .

形容词性物主代词：放在名词的前面，修饰名词。后面必须有名词。

例如：This is my friend.

名词性物主代词：放在be动词的前后，句首或者句尾，后面不能有名词。

例如：There is a book on the desk ,but mine is on the table.

Enjoy oneself= have a good time

I have a good time = I enjoy myself.我玩得很愉快。

Help oneself to sth

Help yourself to eat some food .请随便吃点东西。

不定代词：

Some 和any 的用法和区别

Some用在肯定句，any用在否定句和疑问句里。

I have some books .

Do you have any books ?

I don’t have any books.

Many 和much的用法和区别

Many用来修饰可数名词，而much用来修饰不可数名词

I have many books.

I have much money in the box.

There are many pens on the desk.

There is much money in the box .

A few ,few ,a little ,little 的用法和区别

A few 和few是反义词的意思，用来修饰可数名词。而我们的a little和little是反义词的意思，用来修饰不可数名词。

I have a few books .我有一些书。I have few books .我没有书。

I have a little water .我有一些水。I have little water.我没有水。