英语名词单数变复数7s

名词Noun（可数名词单数变复数）ZhangYan

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What’sthisinEnglish?--It’sanapple.--Whatarethese?--Theyaretwo

apples.--What

arethese?--What’sthis?--It’sapen.--Theyarepens.backpackswatchesorangespens--What’rethese?--They’re….认真比较下列单词，找出变化规律。an

orangeorangesadogdogsabirdbirds1.一般情况下，直接在词尾加-s构成复数形式。carpencilcarspencilsbookbooks大家能找出什么规律呢？namepencardrulernamespenscardsrulers练一练仔细观察你能得出什么规律呢？aboxboxesawatchwatchesabrushbrushesdishesfoxesbusesbusbusesfoxesfox(狐狸)dish(盘子)dishes2.以s,x,ch,sh等结尾的名词，

在词尾加-es构成复数形式。请观察这些单词的复数变化与前面看的那些有什么不同呢？给下列可数名词变复数

card--bus--ruler--box--friend--watch--case--cat--dress--tree--bed--peach--glass--cup--busesrulerscatscasesdresseswatchestreesbedsfriendspeachesglassesboxescardscupsbabyfivebabiesboythreeboys以辅音字母加y结尾的名词，要变y为i再加es.knifefourknivesleafsomeleaves以f或fe结尾的名词要将f或fe变为v再加es.potatosomepotatoestomatofivetomatoes部分以字母Ｏ结尾的名词，在其词尾加es.但photo、piano(钢琴)等除外，photos,pianos.可数名词单数变复数的变化规则：1.一般情况下,直接在名词词尾加s.

2.以s,x,sh,ch结尾的名词加es.

4.以f或fe结尾的名词，将f或fe变为v再加es.

3.以辅音字母加y结尾的名词，要变y为i再加es.5.部分以字母o结尾的名词可加es，但photo和piano等除外．给下列名词变复数．am/is--he--bird--lady--boy--girl--wife--watch--key--picture--this--that--family--dictionary--photo--potato--aretheybirdsladiesboysgirlswiveswatcheskeyspicturesthesethosefamiliesdictionariesphotospotatoes句子单数变复数Thisisabook.Thatisaneraser.Itisaredapple.Iamaboy.He/Sheisateacher.What’sthis?Thesearebooks.Thoseareerasers.Theyareredapples.Weareboys.Theyareteachers.What’rethese?名词单数变复数1.一般情况加s

2.加s,x,ch,sh结尾的名词加es3.以辅音字母加y结尾的名词,先改y为i,再加es

(mothers,fathers,sisters,brothers)(buses,boxes,watches)(family--families

dictionary--dictionaries)区别

key–keys

boy--boys7.单复数同形(不变):sheep(绵羊)deer(鹿)fish(鱼)5.man,woman

men,women4.加es:potatoes

(土豆)tomatoes

(西红柿)Chinese(中国人)Japanese(日本人)9.oo

ee：foot(脚)tooth(牙齿)

goose(鹅)8.以f/fe结尾的,变f为v,再加eswife(妻子)knife(小刀)

s