定义：

表示人、事物、地点或抽象概念的名称。如:boy, morning, bag, ball, class, orange.

分类：

英语名词按其性质可分为专有名词和普通名词；按名词的数又可分为可数名词和不可数名词，可数名词又可分为单数名词和复数名词。

名词单数变复数：

1）多数情况下在名词后面加s，s 在清辅音后读【s】,如：book-books, bag-bags...

2）以s,x,sh,ch结尾的词在词尾加es, es读作【iz】,如：box-boxes, class-classes...

3） 以f,fe为结尾的词去掉f或fe加ves，ves读作【vz】,如：wolf-wolves, knife-knives

4）以o结尾的词，有生命的词后加es; 无生命的词后加s, 如：potato-potatoes, photo-photos...

5) 以辅音加y 结尾的词，变y为ies,如：family-families, city-cities...

6) 不规则变化：man-men, woman-women, policeman-policemen, tooth-teeth...

7) 单复数同形：Chinese-Chinese, Japanese-Japanese, sheep-sheep, deer-deer, fish-fish...

this 这个these这些(复数) that那个 those那些(复数) I我 we我们(复数) he他 she她 it它 they他、它、她们(复数) am，is是 are(复数)

常见的不可数名词：

water, milk, juice, tea, coffee, soup, food, rice, cheese, bread, beef, pork, ice-cream, money...

单数句子变复数句子:

把单数的句子成复数的句子很简单：去掉a/an, 把能变成复数形式的词变成复数形式(谓语动词、名词、代词）。特殊疑问词、形容词、国家及地点通常不变。

eg:把下列句子变成复数

1, I have a car ----We have cars

2, He is an American boy ----They are American boys

3, It is a car ----They are cars

4, This is an eraser ----These are erasers

5, That is a backpack -----Those are backpacks

6, I'm an English teacher ------We are English teachers

7, It's a new shirt---- They are new shirts

8, He's a boy ----They are boys

9, She's a singer ------They are singers

10, What's this in English?---- What are these in English?

名词所有格

名词所有格表示所属关系,相当于物主代词, 译为“......的”

有生命的名词：

变法：在人名后面加's 或者用”of”结构:

eg:Lucy-Lucy's Lucy-of Lucy

eg. Lily's book is on the desk. Lily的书在桌子上。

=The book of lily is on the desk.

注意：以s结尾的名词，其所有格在后面加'，eg: student-students'

无生命的名词：

变法：用”of”结构:

eg. the window of the house 这个房子的窗户

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