名词所有格

1.在大多数名词末加“'s”

the boy's toy, men's work

2.以 s结尾的复数名词直接加“'”

the students' reading room

3.以 s结尾的单数名词加“'”

Dickens' novels the actress' performance

4.合成名词在最后一个词上加“s”

her brother-in-law's piano.

Somebody else's books. (重要!)

【金牌重点】：除用于有生命的人外，“'s”格还可用于度量衡、地域、天体及一些习语中：

an hour's drive, a mile's journey

ten pounds' weight. Beijing's weather

the earth's surface

a stone's throw 投石之距离

at one's wits end 智穷计尽

to one's heart's content 尽情地

by a hair's breadth 千钧一发

at a snail's pace 缓慢地

5.双重所有格：

如果被修饰的名词前有不定冠词、不定代词、指示代词、疑问代词修饰。则要采用双重所有格。

a friend of mine (名词性物主代词)

a child of hers

the love poems of your sister's

注意区别：

1） a portrait of her mother 她母亲的画像(画中人)

2） a portrait of her mother's 她母亲拥有的画像中的一幅(不一定是她母亲的画像)