名词变复数
一、首先区别是可数还是不可数名词。banana 和peach是可数名词所以有复数形式.coffee 和milk是不可数名词没有复数,所以保持原形。
.二、名词复数的规则变化
1) 一般的名词在词尾加-S
students, apples, bags, trees, books, brothers.�
2) 以s、ss、z、x、sh、ch结尾的名词加-es
glasses, boxes, brushes, matches.
补充说明:以-ch结尾的名词并不一定都是加es变复数,像stomach就是加s,关键还是要看发音的�
3) 以辅音字母加y结尾的名词,变y为i加es
cities, babies, enemies�
4) 以f或fe结尾的名词,多数变f为v加es
wives, knives, lives, wolves, shelves, leaves, bookshelves.
但有些词只加s: roofs, proof s, chiefs.�
5) 以o结尾的名词,有些加es
Negroes, heroes, tomatoes, potatoes(黑人英雄爱吃土豆和西红柿),
其它加s: radios, zoos, pianos, photos, banboos, kangaroos,
Eskimos, Filipinos(其中最后两个单词是以o结尾的种族名词)
二、名词复数的不规则变化
1)改变内部的母音字母:
foot→ feet, goose→ geese, tooth→ teeth, mouse→ mice,man→ men, woman→ women, policeman→ policemen, postman→ postmen, mailman→ mailmen, spaceman→ spacemen, gentleman→ gentlemen, milkman→ milkmen, businessman→ businessmen , fisherman→ fishermen, policewoman→ policewomen, businesswoman→ businesswomen
2)单复数同形:
sheep→ sheep, deer→ deer, Chinese→ Chinese, Japanese→ Japanese
3)有些外来语保留原来的复数形式
datum→ data, medium→ media, bacterium→ bacteria, curriculum→ curricula, criterion→ criteria, phenomenon→ phenomena
4)加字尾en或ren
ox→ oxen, child→ children
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