新概念第一册 知识点总结(全)名词名词包括可数名词和不可数名词,可数名词有单复数变化。不可数名词没有。可数名词单数变复数规则: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: radios, zoos, pianos, photos.6)不规则名词:footfeet, goosegeese, toothteeth, childchildren, manmen, womanwomen, sheepshee