2017小升初名词讲解单数复数可数名词如何变化?规则变化不规则变化规则变化1.一般情况下,直接在词尾加-s构成复数形式。carbackpackcarsbackpacksbook booksnamepencardrulernamespenscardsrulers练习一dog- duck-chair-table- band- window- banana- tree-dogs duckschairstables hands windows bananas treesbox2. 以s, x, ch, sh等结尾的名词, 在词尾加-es构成复数形式。boxesclass classeswatch watchesbrush brushessxshchbus busesfoxesfox(狐狸)dish(盘子)dishes练习二nglass- nbox- nbrush- nmatch- nclass-nbus-nwatch-nglasses nboxes nbrushes nmatches nclassesnbusesnwatches综合练习一n glass- n desk- n school-n