英语学习:2012小升初英语语法知识要点：名词的数(一)

情况构成法读音例词一般情况(包括以e结尾的名词)加-s-s在清辅音[p][t][k] [f]后读[s]Cups, cats, cakes, roofs, flags, keys, faces在浊辅音和元音后读[z]在辅音[s][z][d ?]后读[iz]口诀：清清浊浊元浊以s, x, ch, sh结尾加-es在[s][z][?][t?]后读[iz]Classes, boxes, watches, brushes以辅音+y结尾变y为i，加es读[z]Cities, countries, studies以元音+y结尾加­-s读[z]Boys, rays, days

有人还把以下两个加入了名词有规则变复数的行列：

情况构成法读音例词以o 结尾加-es读[z]Heroes, tomatoes, potatoes, Negroes加-s读[z]Bamboos, radios, zoos, photos, pianos以f, fe结尾变f, fe为v，再加-es读[vz]Leaf-leavesLife-livesWife-wivesThief-thievesHalf-halvesKnife-knivesWolf-wolvesSelf-selvesLoaf-loaves加-s读[s]Roofs, proofs, chiefs, beliefs, gulfs