一代词概述
1 人称代词：1）主格（I ,you ,he,she,it,we,they）在居中作主语He would drown his sadness in coffee(主格作主语)
2）宾格（me,you,him,her,it,its,them）在句中作宾语表语 I bought a present for him.(宾格作介词宾语)
2 主代词1）名词性物主代词（mine,yours,his,hers,its,ours,theirs）相当于“”“形容词子性物主代词+名词”，在句中作主语，宾语，表语
2）形容词性物主代词（my,your,his,her,its,our,their）,在名词前作定语
3 反身代词（myself,himself,herself,yourself,itself,ourselfs,yourselves,themselfs）,用法：宾语(动宾 Tom taught himself Chinese） ，（介宾 You can't leave the baby by himself）(表语 She is not quite herself today)，(同位语 I myself can repair the bike)
4 指示代词（this,that,those,these）作主语，宾语，表语，定语
5 相互代词(one，another，the other，some，others，the others）作宾语
| 一个/一些 | 另外一个/一些 | 剩余的一个/一些 | |
| 单数 | one | another | the other |
| 复数 | some | others | the others |
6 疑问代词who,whom,whose,what,which，what和who的区别：what 用来询问职业，who用来询问身份
7 不定代词（both,all,either,any,neither,none）
| 都 | 任何一个 | 都不 | |
| 两个人或物 | both | either | neither |
| 三个或三个以上的人或物 | all | any | none |
I have bought two books ;you can have either.我买了两本书，你要哪本都行。
None of this money is mine.这笔钱没有一点是我的。
（one ,another,the other,some,others,the others）
(none,nobody/no one,nothing)
| 指代 | 用来回答 | 相当于 | |
| 人或物 |
how many how much |
not a/an/any+名词 或no + 名词 |
|
| 人 | who |
not anyone not anybody |
|
| 物 | what | not anything |
(many ,much,few,little,a few,a little ,a few ,a little),
| 多 | 少 | |
| 复数名词概念 | many | few |
| 不可数名词概念 | much | little |
| 肯定 | 否定 | |
| 复数名词概念 | a few | few |
| 不可数名词概念 | a little | little |
替代词：one,ones,the one,the ones,that,those
| 替代 | |
| one | a/an + 单数名词 |
| ones | 零冠词+复数名词 |
| the one | the +单数名词 |
| the ones | the+复数名词 |
| that | the+单数名词或者不可数名词（尤其是有后置定语时） |
| those | the+复数名词（尤其是有后置定语时） |
We have various summer camps for your holiday.You can choose one.
Mr.Zhang gave me many valuable presents,ones that I had never seen.
(nothing but,anything but,something of,or something,something like)
1)He is nothing but a clerk.他只是一名职员。
2）He is anything but a clerk.他根本不是一名职员。
3）She is something of a doctor.she has saved many lives.可以说，她是一名医生，她救过很多人的命
4）He might be a scientist or something.她大概是科学家一样的人物。
5）They get something like 97% renewals every year.他们每年大约有97%的用户续订。
8.强调句型：
（1）强调句型的陈述句形式：it is/was/might be 被强调部分+that/who +其他成分
（2）强调句型的一般疑问句：is/was it +被强调部分+that/who+其他成分
（3）强调句型的特殊疑问句形式：特殊疑问词+is/was it that +其他成分
（4）not...until...结构的强调句型，强调句式为：It is/was not until + 被强调部分+that +其他成分