总复习Unit 1-6, Book 7 A1. Grammara. 人称代词主格:I you he she it we you they用来做主语,谓语动词之前宾格:me you him her it us you them 用来做宾语,放动词和介词之后b. 物主代词形容词性物主代词:做定语,my your his her its our your their名词性物主代词:做主语和宾语mine yours his hers its ours yours theirs 指示代词this that these those 做主语和宾语c. 名词1. 可数名词:表示两个和两个以上概念的名词要在词尾加s或es 变成复数形式。加s/es 是:(1) 直接在词尾加s(2) s/x/ch/tch/sh 结尾的词后加es(3) f或fe结尾的词,将f/fe改成ves(4) 辅音字母+y 结尾的词,将y改成i再加es.(5) o结尾的词:photo/ piano/radio/ki