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名词单数变复数What’sthisinEnglish?It’sanapple.Whatarethese?Theyaretwoapples.--Whatarethese?--What’sthis?--It’sapen.--Theyarepens.--Whatarethose?--What’sthat?--It’sanEnglishbook.--TheyareEnglishbooks.backpackswatchesorangespens--What’rethese?--They’re….mapscaseskeys--What’rethose?--They’re….单数复数可数名词如何变化？规则变化不规则变化规则变化appleapplesbusbusesbabybabiesPolicemangoosefishpolicemengeesefishsheepchildmousesheepchildrenmice1.一般情况下，直接在词尾加-s构成复数形式。carbackpackcarsbackpacksbookbooksbox2.以s,x,ch,sh等结尾的名词，在词尾加-es构成复数形式。boxesclassclasseswatchwatchesbrushbrushessxshch2.namepencardrulernamespenscardsrulersbusbusesfoxesfox(狐狸)dish(盘子)dishes学3.以“辅音字母+y”结尾的名词，应改y为i，再加-es。familyfamiliescomediescomedy(喜剧)yyld3.keycitiesstrawberrieskeyscity(城市)strawberry(草莓)4.以“元音字母+y”结尾的名词，直接在词尾加-s构成复数形式。boyboysdaydaysoayy4.5.以f或fe结尾的名词，先将f或fe变成v，再加-es构成复数形式。knifekniveshalfhalves“小偷”(thief)的“妻子”(wife)用“刀子”(knife)和“树叶”(leaf)把“狼”(wolf)劈成两“半”(half)。5.wivesleaveswolveswife(妻子)leaf(树叶)wolf(狼)roof(屋顶)roofsroof“小偷”(thief)的“妻子”(wife)用“刀子”(knife)和“树叶”(leaf)把“狼”(wolf)劈成两“半”(half)。巧记：6.以o结尾的名词，有的加-s,有的加-es构成复数形式。photophotosheroestomatoeszooszoo(动物园)tomato(西红柿)hero(英雄)6.以o结尾的名词,表示无生命事物的名词，词尾加-s,表示有生命事物的名词，词尾加-es。加-es的名词有:potato,tomato,hero巧记:英雄爱吃土豆炖西红柿。改正下列名词的复数形式lady—ladyskey--keyesphoto--photoesfamily-familysboy--boiesdictionary--dictionaryswatch--watchsleaf--leafswife--wifesparty--partyshero—herosradio--radioes•Sumup:1.一般情况下,直接在名词词尾加-s.2.以s,x,sh,ch结尾的名词,在词尾加-es.3.以辅音字母加y结尾的名词，要变y为i再加-es.5.以f或fe结尾的名词，先将f或fe变为v,再加-es.6.以o结尾的名词,表示无生命事物的名词加-s,表示有生命事物的名词加-es。4.以“元音字母+y”结尾的名词，直接在词尾加-s.•child---childrenfoot---feettooth---teeth•mouse---miceman---menwoman---women•注意：与man和woman构成的合成词，其复数形式也是-men和-women。•如：anEnglishman，twoEnglishmen.但German不是合成词，故复数形式为Germans；单复同形如：•deer，sheep，fish，Chinese，Japanese•li，jin，yuan，twoli，threemu，fourjin•但除人民币元、角、分外，美元、英镑、法郎等都有复数形式。如:•adollar,twodollars;ameter,twometersThreelittlerabbitsjumpingonthebed.Onefelloff,oh,yes,yes,yes!Twolittlerabbitsjumpingonthebed.Onefelloff,oh,yes,yes,yes!Onelittlerabbitjumpingonthebed.Onefelloff,oh,yes,yes,yes!(child,sheep,mouse,fish…)Threelittle______jumpingonthebed.Onefelloff,oh,yes,yes,yes!Twolittle______jumpingonthebed.Onefelloff,oh,yes,yes,yes!Onelittle______jumpingonthebed.Onefelloff,oh,yes,yes,yes!