英語(yǔ)名詞變復(fù)數(shù)的規(guī)則：
1、直接加-s.
如： tree-trees樹, desk-desks桌 card-cards, parent-parents,
2、以s,x, ch, sh 結(jié)尾的加es.
如：bus-buses, box-boxes, watch-watches 手表, brush-brushes 刷子, glass-glasses.
3、以輔音字母+ y結(jié)尾的，改y為i再加es.
如：country-countries 國(guó)家、鄉(xiāng)村, city-cities 城市, baby-babies, family-families,
特例：：boy-boys, monkey-monkeys, toy-toys, play-plays(劇本)
4、以f或者fe 結(jié)尾的詞，改f為v,再加es.
如：knife-knives刀, leaf-leaves 樹葉, wife 妻子-wives.