Linda.ou - 2010-8-2 21:15:00
名词单数变复数的原则：1)单数名词加s: students, apples, bags, trees, books, brothers. 2)以s、x、sh、ch结尾的名词加es: glasses, boxes, brushes, matches. 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.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.其它加s: radio s, zoos, pianos, photos. 6)不规则名词：foot→feet, goose→geese, tooth→teeth, child→children, man→me n, woman→women, sheep→sheep, deer→deer, mouse→mice.