英语单词复数形式的规律答:knife→knives.2、不规则变化:man→men,woman→women,sheep→sheep,tooth→teeth,fish→fish,child→children,ox→oxen,goose→geese 不可数名词一般没有复数形式,说明其数量时,要用有关计量名词。如:a bag of rice→two bags of rice,a piece of paper→three pieces of paper,a bottle of milk...
名词变复数规则答:名词变复数的规则:1.一般名词复数是在名词后面加上“s”,如map→maps,bag→bags等;2.以s,sh,ch,x等结尾的词加“es”,如bus→buses,watch→watches等;3.以辅音字母+y结尾的词,变y为i加es,如baby→babies等;以元音字母+ y结尾的名词变复数时,直接加s变复数,如monkey→monkeys,holiday...