名词性物主代词相当于：形容词性物主代词+名词
比如：Thisismyroom.(my-形容词性物主代词)
= Thisroomismine.(mine名词性物主代词=myroom)
教材书上都会有表格列出
my+名词 ---mine
your+名词 ---yours
his +名词 ---his
her+名词 ---hers
its+名词 ---its
our+名词---ours
their+名词---theirs
Thisisnotyourbook.Yours isinthedesk.(相当于yourbook)
Yourringismoreexpensivethanhis. (相当于hisring)
YourteacherisaChinese.OursisanEnglish. (相当于ourteacher)
