⑴ 整理名词复数的特殊变化(小学牛津英语译林版
1)通过内部元音变化的方法来构成复数形式。man→men(男人)woman→women(女人)foot→feet(英尺,脚)tooth→teeth(牙)goose→geese(鹅)mouse→mice(老鼠)louse→lice(虱子)
2)词尾加-en构成。ox→oxen(牛)child→children(孩子)
3)以f或fe结尾,在构成复数时,去掉f或fe加-ves。half→halves(半)thief→thieves(贼)wife→wives(妻子)life→lives(生命)knife→knives(小刀)wolf→wolves(狼)calf→calves(小牛)shelf→shelves(架子)leaf→leaves(叶)loaf→loaves(面包的块、条)sheaf→sheaves(捆)self→selves(自己)
4)单、复数相同的形式。one sheep(一只羊)→two sheep(两只羊)a deer(一只鹿)→two deer(两只鹿)a Chinese(一个中国人)→two Chinese(两个中国人)
5)有些名词只有单数形式。advice(劝告;忠告)information(信息)luggage(行李)knowledge(知识)rubbish(垃圾)furniture(家具)
6)有些名词通常只有复数形式。compasses(圆规)clothes(衣服)pyjamas(睡衣裤)trousers(长裤)breeches(马裤)pants(短裤)goods(货物)binoculars(双筒望远镜)pliers(钳子)scissors(剪刀)scales(天平)arms(武器)premises(房屋)
7)合成名词,将主体词变为复数形式。passer-by→passers-by(过路人)brother-in-law→brothers-in-law(姐夫)sister-in-law→sisters-in-law(嫂子)
8)由man和woman构成的合成名词,两个构成部分都要变成复数。man worker→men workers(男工人)woman doctor→women doctors(女医生)
9)以字母o结尾的单词,通常情况下在其后加-es。Negro→Negroes(黑人)potato→potatoes(土豆,马铃薯)tomato→tomatoes(蕃茄,西红柿)