1. 大多数名词直接在词尾加s:school—schools, apple—apples, book—books, desk—desks
2. 以s、x、sh、ch等结尾的名词,在词尾加es:bus—buses, box—boxes, watch—watches, dish—dishes
3. 以 “辅音字母+y”的名词,把y变i再加es:fly—flies, family—families, baby—babies
4. 以f/fe结尾的名词,把f/fe变v再加es:knife—knives, life—lives
5. 以o结尾的名词: 有生命的加es: tomato—tomatoes, potato—potatoes, Negro—Negroes, hero—heroes,
无生命的加s: photo—photos, radio—radios, zoo—zoos, piano--pianos
不规则变化的名词的复数:
1. 单复数同形:fish, deer, sheep, Chinese, Japanese,
2. 特殊变化:child—children, ox—oxen, man—men, woman—women, mouse—mice, foot—feet, tooth—teeth, goose--geese
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