规则的可是名词和不规则的可数名词。РStep 2 PPT展示此页内容РA、规则可数名词的变化规则:Р1.一般情况加s:book-- books mouth---mouths house---houses girl---girlsР2.以s、sh 、ch 、x 结尾的加es:class--- classes box----boxes match----matches Р3.辅音字母+y结尾的变y为i加es:city---cities country----countries party----parties factory----factories Р4.以o结尾的词+es的只有以下词:heroes,Negroes,tomatoes,potatoes,zeroes/zerosР 以 o 结尾并且词尾有两个元音字母+s:radios, zoos, bamboos, pianos, kilos,photosР5.以f,fe 结尾的,变f或fe为v +es: thief wife life knife wolf half leaf Р 讲解完毕此项后举例辨析The thief’s wife killed three wolves with some leaves and knives in half of her life.РStep 3 PPT展示此页内容РB、不规则可数名词的变化规则:Р1.man—men, woman—women, tooth—teeth, foot—feet, goose—geese child—children, mouse—mice(老鼠)Р2.单复数相同: sheep, deer, Chinese, Japanese Swiss. Р3.以man, woman 修饰名词构成合成词时,两个词都变化. Р man servant—men servants.
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