1、Whats this ?,Its an apple.,What are these?,They are two apples.,-What are these?,-Whats this?,-Its a pen.,-They are pens.,-What are those?,-Whats that?,-Its an English book.,-They are English books.,backpacks,watches,oranges,pens,-What are these ? -Theyre .,maps,cases,keys,-What are those ? -Theyre
2、.,可数名词是指能以数目来计算，可以分成个体的人或物，因此它有单数，复数两种形式。,可数名词变复数,单数,复数,可数名词,如 何 变 化？,规则变化,1、一般情况词尾加s浊辅音和元音后读z清辅音后读s,例词bag bags bgzcup cups kpsrow rows ruz,name,pen,book,ruler,names nemz,pens penz,books bks,rulers ru:lz,2、以s, x, ch, sh等结尾的词，词尾加es，读iz。,例词：boxboxesbksizwatch watcheswtizclassclasses kl:siz,bus,buses b
3、sz,foxes fksIz,dishes dz,grass,grasses gr:sz,3、以 ce，se，ge 等结尾的词，词尾加s，读 iz。,例词 casecases keisiz raceraces reisiz bridge- bridgesbrdiz exercise- exercisesekssazz,4、以“辅音字母+y”结尾的词变 y 为 i，再加 es ，读z。,例词： lobbylobbies lbizdutyduties dju:tizfamilyfamilies fmiliz,lady,cities sitiz,strawberriesstr:briz,ladies
4、 leidiz,5、以 “元音字母+y” 结尾的词，词尾加 s，读 z。,例词：boy boys biz,key,ways wez,toys tz,keys ki:z,monkey,monkeysmkz,6、以 fe 或 f 结尾的词通常情况下变 f 为 v 加es，读vz。,例词：leafleaves li:vzthiefthieves i:vzwifewives waivz,knivesnavz,halvesh:vz,wolveswlvz,calvesk:vz,“小偷”(thief)的“妻子”(wife)用“刀子”(knife)和“树叶”(leaf) 把“狼”(wolf)劈成两“半”(ha
5、lf)。,巧记：,7 部分已f结尾的名词复数还可直接加-s 读s,safe,roofsrufs,chiefsti:fs,safessefs,9、以“辅音字母+o” 结尾的名词，词尾加es，读z。,例词：hero heroes hiruzpotatopotatoes pteituztomato tomatoes tm:tuz,加-es的名词有:potato, tomato, hero,巧记:英雄爱吃土豆炖西红柿。,10、以 “元音字母+o” 结尾的名词词尾加s ，读z。,例词：radioradios reidiuz zoozoos zu:z bamboobamboosbmbu:z,11 个别以O
6、结尾的名词可有两 种复数形式,读音为z,mangos mangoes,mosquitos mosquitoes,mz,mski:tz,12、单复数同形 ，保持原音。例词：fish fish f,sheep sheepi:p cattle cattle ktl deer deerd(r),13、复数形式没有任何规律例词：manmenmen woman womenwmn,toothteeth ti: foot feet fi:t goose geesei:s,childchildren tldrn mouse micemas,14、除人民币元、角、外，美元、 英镑、 欧元等都有复数形式。,例词on
7、e dollar two dollars one pound two pounds,名词变复数歌诀名词复数有变化，词尾常把-s加； 结尾若是s, x, ch, sh, 加上-es要记下； 若遇f, fe, 更要弄清其变化； 先将它们变成v，然后再把-es加； y结尾要分清，两种情况必须明； 不规则名词要注意，它的词形需牢记； 中日友好不变化，英法联军a变e。,说明:表示某国人，通常在单数后面加s。 但是（中国人）Chinese（日本人）Japanese单复数一样， （英国人）Englishman和（法国人）Frenchman只需把a变为e。,Activity1 袜子配对：将成对的袜子连线并涂上
8、相同的颜色,boy,boys,pen,pens,eyes,eye,desk,desks,dogs,dog,给下列可数名词加复数,bird- card- lady-orange- ruler- photo- friend- boy- watch- girl- case- cat- wife- tree- key- bed- hero- family- dictionary- question- leaf- party- cup-,birds,ladies,oranges,rulers,cats,boys,girls,cases,wives,watches,trees,keys,questions
9、,beds,heroes,friends,families,dictionaries,photos,cards,leaves,parties,cups,activity2,How many _ (book) are there?Key: books,Lucy and Tom are my _(friend).Key: friends,用所给的单词的复数的正确形式填空： 1I have two _(pencil-box). 2There are three _(chair) in the classroom. 3These _(tomato) are red. 4_(hero) are grea
10、t. 5My brother looks after two _(baby) 6There are some _(deer) eating the grass. 7My father likes to eat _(potato). 8Chinese _(people)like to eat noodles. 9I have a lot of _(toy) in my bedroom. 10I help my mother wash _(dish) in the kitchen.,选出正确形式 1I can see three _ in the zoo. A monkeys B monkeys
11、C monkey 2.The pig has four _. foot B. feet C. foots 3.My two brothers are both _. policeman B. policemans C. policemen 4.There are four _ in the class. Japanese B. Japaneses C. Japan 5.I can see ten _ in the picture. A. sheep B. dog C. pig,6.The _ has three_. boys, watches B. boy, watch C. boy, wat
12、ches 7.C an you see _on the plate?A. bread B. breads C. breades 8.The girl often brushes her_ before she goes to bed. tooth B. tooths C. teeth 9.Mr Black often drink some _. A. milk B. milks C.milkes 10.There are some _ on the floor. A. child B. water C. books,句子单数变复数 This is a book. That is an eraser. It is a red apple. I am a boy. He / She is a teacher. Whats this ?,These are books. Those are erasers. They are red apples. We are boys. They are teachers. Whatre these ?,Thank you!,
