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1、可数名词,可数名词,单数 指一个人或一件事物时，用单数形式。,复数 指两个或多个人或事物时，用复数形式。,1.怎么从单数变成复数呢？2.你知道那些变化规则呢？,(1)一般的名词词尾直接加 s。如：book-books room-rooms house-houses day-days,(2)以s,x,ch,sh结尾的名词，在词尾加es。,ch-s-sh-x“吃死是错”,如：bus buses glass glasses box boxes dish dishes watch-watches,(3)以 o 结尾的名词，有生命的加es，没生命的加s。,如：photo piano tomato-pot
2、ato-zoo hero英雄-mango-negro黑人-,photos,pianos,tomatoes,potatoes,zoos,heroes,mangoes,negroes,(4)以“辅音字母+y”结尾的名词，要先将 y 变为 i，再加es。,除Aa Ee Ii Oo Uu之外,如:citycities bodybodies factoryfactories familyfamilies storystories countrycountries cherrycherries hobby-hobbies,toy,toys,(5)以f或fe结尾的名词，要将f或fe变成v，再加es。,狼的妻
3、子，爬上架子，拿着刀子，砍下叶子，砸到了小偷，剩下半条命。,如：wolfwolves wifewives shelfshelves knifeknives leafleaves thiefthieves halfhalves life-lives,(6)特例。变化没有规律，常常考,要记准！,单复数一样：sheepsheep deerdeerfishfish ChineseChinese,如：manmen womanwomen,footfeet toothteeth,childchildren mousemice ox(公牛)oxen,(7)国人的复数变化。,英法联军a变e，Englishman
4、-Englishmen FrenchmanFrenchmen,其中德国最重点。German-Germans,中日友好永不变,Chinese-Chinese JapaneseJapanese,其他s放后面，AmericanAmericans,你，敢挑战吗？,请将出现的单词，变成复数形式！,photo,photos,family,families,boy,boys,peach,peaches,sheep,sheep,wife,wives,man,men,wolf,wolves,tomato,tomatoes,people,people,人们,milk,milk,你，愿意超越吗?,请完成句子！,There are four _(potato)on the table.,potatoes,My sister has three_(knife).,knives,Do you have any _(hobby)?,hobbies,There is some _(water)in the bottle.,water,They are _(policeman).,policemen,A lot of _(fish)are swimming in the water.,fish,
