代词包括人称代词、物主代词、反身代词、指示代词、疑问代词、关系代词、不定代词及其用法。
一、人称代词
人称代词有第一、第二、第三人称和单数、复数之分，在句子中可以作主语和宾
语。英语中有下列人称代词：
在并列的主语或宾语中，I或me 通常放在后面。如：
Liping and I are in charge of the work.
My farther asks my sister and me to have dinner with him tomorrow.
二、物主代词
物主代词有形容词型与名词型之分。形容词型物主代词在句子中作定语，名词型物主代词在句子中主要作主语、宾语、表语、定语(接在of 后面)。英语中有下列物主代词：
名词型的物主代词相当于形容词型的物主代词加上上文出现的名词。如：
My bag is yellow， his(his bag) is black and theirs(their bags) are brown.
三、指示代词
指示代词包括this， that， these， those 和such， 在句子中可以作主语、定语、表语、宾语等(such不作宾语)。
that和those有时分别用来代表前面提到的不可数名词和名词复数，以避免重复。而可数名词单数往往用the one 或that one 来代替。用the one 的时候更多一些。如：
These machines are better than those we turned out last year. 生产
The oil output of this year is much higher than that of last year. 产量
The best wine is that from France.
My room is lighter than the one next door.
I'll take the seat next to the one by the window.
The film is more funny than that one.
that 可以指上面提到的事情，this指下面要谈的事情。如：
They have no time to read the books. That's their trouble.
She was ill yesterday. That's why she was absent.
What I want to say is this： Pronunciation is very important in learning English.
this 和that 有时还可以用来表示程度。如：
I don't want that much.
The book is about this thick.
四、不定代词
不定代词包括both， either， neither， all， none， no， one， each， every， few， a few， little， a little， many， much， some， any， other， another， 以及some， any， no， every构成的合成代词。
(一)both， either， neither
both 表示“两者(都)”，either表示“(两者之中)任何一个”，neither表示“(两者之中)没有一个”。三个词在句子中都可以作主语、宾语、定语，both还可以作同位语。
My sister is good at planning her time so that she always has enough time for both work and play.(be good at 擅长做某事)
Neither of the answers is right.
Either of the books belongs to you.
You and I are both to blame.
You both agreed to stay.
Both 放在实意动词前，系动词be 的后面。
(二)all， none， no， one
all和none用于三者以上的场合，分别表示“全部都”和“一个都没有”，none往往与of连用。
All of us are fond of sports. (be fond of 爱好)
We are all for him. (be for sb 支持某人)
Grasp all， lose all. 什么都抓，什么都抓不住。(谚)
None of them know how to read and write.
None of them has had that kind of experience.
no表示“没有”，在句子中只能作定语，相当于not a 或not any，not否定动词，no否定名词。
Time and tide wait for no man. 岁月不等人。(谚)
I'm no dancer. (I'm not a dancer.)
one 指代上文提到的人或物，前面可以加定冠词，可以有自己的定语，还可以有复数形式。
Your answer is a good one.
I don't like coloured envelopes. I like white ones.
(三)each， every
each 和every表示“每一个”，every 在句子中只能作定语，each 可以作主语、宾语、定语、同位语。
The headmaster shook hands with each of the teacher.(shake hands with 握手)
The students try to set aside a little money each month.(set aside 节约)
From each according to his ability， to each according to his needs(work)。各尽所能，按需分配。
I have every reason to believe that she can finish the job well.
There is every possibility of our winning the game.
every 还常用在every little while (每隔一会)，every other day， every three days(每隔两天)，every ten miles(每隔十英里)， every now and then (不时)，every four years， every other line， one out of every three students.
(四)few， a few， little， a little， many， much
few， a few， many 修饰或指代可数名词，little， a little， much修饰或指代不可数名词。few， little表示否定，a few， a little表示肯定，much常用于否定句中。