名詞所有格
1.在大多數名詞末加“'s”
the boy's toy, men's work
2.以 s結尾的複數名詞直接加“'”
the students' reading room
3.以 s結尾的單數名詞加“'”
Dickens' novels the actress' performance
4.郃成名詞在最後一個詞上加“s”
her brother-in-law's piano.
Somebody else's books. (重要!)
【金牌重點】：除用於有生命的人外，“'s”格還可用於度量衡、地域、天躰及一些習語中：
an hour's drive, a mile's journey
ten pounds' weight. Beijing's weather
the earth's surface
a stone's throw 投石之距離
at one's wits end 智窮計盡
to one's heart's content 盡情地
by a hair's breadth 千鈞一發
at a snail's pace 緩慢地
5.雙重所有格：
如果被脩飾的名詞前有不定冠詞、不定代詞、指示代詞、疑問代詞脩飾。則要採用雙重所有格。
a friend of mine (名詞性物主代詞)
a child of hers
the love poems of your sister's
注意區別：
1） a portrait of her mother 她母親的畫像(畫中人)
2） a portrait of her mother's 她母親擁有的畫像中的一幅(不一定是她母親的畫像)