英语名词单数变复数7s.ppt

名词Noun（可数名词单数变复数）,Danny,-WhatsthisinEnglish?,-Itsanapple.,-Whatarethese?,-Theyaretwoapples.,-Whatarethese?,-Whatsthis?,-Itsapen.,-Theyarepens.,backpacks,watches,oranges,pens,-Whatrethese?-Theyre.,认真比较下列单词，找出变化规律。,anorange,oranges,adog,dogs,abird,birds,1.一般情况下，直接在词尾加-s构成复数形式。,car,pencil,cars,pencils,book,books,大家能找出什么规律呢？,name,pen,card,ruler,names,pens,cards,rulers,练一练,仔细观察你能得出什么规律呢？,abox,boxes,awatch,watches,abrush,brushes,dishes,foxes,buses,bus,buses,foxes,dishes,2.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-,buses,rulers,cats,cases,dresses,watches,trees,beds,friends,peaches,glasses,boxes,cards,cups,baby,fivebabies,boy,threeboys,以辅音字母加y结尾的名词，要变y为i再加es.,knife,fourknives,leaf,someleaves,以f或fe结尾的名词要将f或fe变为,v再加,es.,hero,heroes,无论是谁，每天都要吃东西。无论是谁，身体健康才是革命的本钱。有些礼品客户会拒绝，但食品，没有人会拒绝，客户自己应酬多，在家吃饭少，但家人是必然要吃的，尤其是孩子。家人说好，客户自然就满意了。因此送给客户新鲜、美味、健康的有机食品，会让客户觉得“这个企业，不错，有心！”,有新意、健康环保、关爱到家,potato,somepotatoes,tomato,fivetomatoes,以O结尾的：第一种。有生命的变复数结尾加es第二种。无生命的结尾加S: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-,are,they,birds,ladies,boys,girls,wives,watches,keys,pictures,these,those,families,dictionaries,photos,potatoes,sheep,sheep,fish,fish,deer,deer,foot,feet,child,children,man,men,goose,geese,mouse,mice,中日不变，英法变。其余后面加sChinese-ChineseJapanese-JapaneseEnglishman-EnglishmenFrenchman-Frenchmen,句子单数变复数Thisisabook.Thatisaneraser.Itisaredapple.Iamaboy.He/Sheisateacher.Whatsthis?,Thesearebooks.Thoseareerasers.Theyareredapples.Weareboys.Theyareteachers.Whatrethese?,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es,3.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-familiesdictionary-dictionaries),区别keykeysboy-boys,7.单复数同形(不变):sheep(绵羊)deer(鹿)fish(鱼),5.man,womanmen,women,4.加es:potatoes(土豆)tomatoes(西红柿),Chinese(中国人)Japanese(日本人),9.ooee：foot(脚)tooth(牙齿)goose(鹅),8.以f/fe结尾的,变f为v,再加es,wife(妻子)knife(小刀)shelf(