语法学习—名词:可数名词+不可数名词（填空）以s/sh/ch/x结尾的单词：加es：box—（）bus--()watch---()brush--()一般情况直接加s：dog--()book---()bag---()辅+o：tomato---()potato---()hero---()元+o结尾的

　　语法学习—名词:可数名词+不可数名词（填空）

　　以s/sh/ch/x结尾的单词：加es：box—（）bus--()watch---()brush--()

　　一般情况直接加s：dog--()book---()bag---()

　　辅+o：tomato---()potato---()hero---()元+o结尾的单词,直接加s:radio---()zoo--()studio--()

　　以f/fe结尾,该f/fe为v,再加es:leaf---()life---()knife---()wife---()thief--()

　　改y为i:再加es,元+y:直接加s:city---()country---()family---()boy---()key--()

　　特殊变化：man---()woman--()tooth---()goose---()foot---()child---()mouse---()

　　单复同形：sheep---（）deer---()fish--()chinese---()japanese---()swiss---()