微课可数名词单数变复数课件.ppt

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1、 2018年安徽省第三届微课大赛人教版英语四年级下册Unit3 可数名词单数变复数 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。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规则变化1.一般情况词尾加一般情况词尾加s 浊辅音和元音后读z 清辅音后读s 例词例词 bag bags bgz cup cups kps row rows ruznamepenbookrulernames nemzpens penz books bks rulers ru:lz 2.以s,x,ch,sh等 结尾的词，词尾 加es，读iz。例词例词：boxboxesbksiz wat

2、ch watcheswtiz classclasses kl:sizbusbuses bsz foxes fksz fox(狐狸)dish(盘子)dishes dz grassgrasses gr:sz 3.以 ce，se，ge 等 结尾的词，词尾加s，读 iz。例词casecases keisiz raceraces reisizbridge-bridgesbrdiz exercise-exercisesekssazz 4.以“辅音字母辅音字母+y”结尾的词 变 y 为 i，再加 es，读z。例词：例词：lobbylobbies lbizdutyduties dju:tiz familyfa

3、milies fmilizladycities sitiz strawberries str:briz ladies leidizcity(城市)strawberry(草莓)5.以“元音字母元音字母+y”结尾的词，词尾加 s，读 z。例词：例词：boy boys bizkeyways weztoys tz keys ki:z waytoy monkeymonkeysmkz 6.以 fe 或 f 结尾的 通常情况下变 f 为 v 加es，读vz。例词：例词：leafleaves li:vz thiefthieves i:vz wifewives waivzknivesnavz halvesh:v

4、z wolveswlvz knifehalfwolf(狼)calfcalvesk:vz“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：7.部分已f结尾的名词复数还可直接加-s读ssaferoofsrufschiefsti:fs safessefs roofchief8.以“辅音字母辅音字母+o”结尾的名词，词尾加es，读z。例词：例词：hero heroes hiruz potatopotatoes pteituz tomato tomatoes tm:tuz 加-es的名词有:potato,toma

5、to,hero巧记:英雄爱吃英雄爱吃 土豆炖西红柿土豆炖西红柿。9.以“元音字母元音字母+o”结尾的名词 词尾加s，读z。例词例词：radioradios reidiuzzoozoos zu:zbamboobamboosbmbu:z 10.个别以O结尾的名词可有两种复数形式 读音为zmangosmangoesmosquitosmosquitoesmangomosquitomz mski:tz 11.单复数同形单复数同形 ，保持原音，保持原音。例词例词：fish fish f sheep sheep i:p cattle cattle ktl deer deer d(r)12、复数形式没有任何规

6、律复数形式没有任何规律 例词：例词：manmenmen woman women wmn toothteeth ti:foot feet fi:t goose geese i:s childchildren tldrn mouse mice mas 13.除人民币元、角、分外，美元、美元、英镑、英镑、欧元欧元等 都有复数形式。例词 one dollar two dollars one pound two pounds 名词变复数歌诀名词变复数歌诀名词复数有变化，词尾常把名词复数有变化，词尾常把-s加；加；结尾若是结尾若是s,x,ch,sh,加上加上-es要记下；要记下；若遇若遇f,fe,更要弄清

7、其变化；更要弄清其变化；先将它们变成先将它们变成v，然后再把，然后再把-es加；加；y结尾要分清，两种情况必须明；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；不规则名词要注意，它的词形需牢记；中日友好不变化，英法联军中日友好不变化，英法联军a变变e。说明说明:表示某国人，通常在单数后面加表示某国人，通常在单数后面加s。但是（中国人）但是（中国人）Chinese（日本人）（日本人）Japanese单复数一样，单复数一样，（英国人）（英国人）Englishman和（法国和（法国人）人）Frenchman只需把只需把a变为变为e。谢谢谢谢使用使用！联系信箱：2018年安徽省第三届微

8、课大赛Activity1袜子配对：将成对的袜子连线并涂上相同的颜色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-birdsladiesorangesrulerscatsboysgirlscaseswiveswatchestreeskeysquestionsbedsheroesfriendsfamiliesdictionariesphotoscardsleaves

9、partiescupsactivity2How many _(book)are there?Key:booksLucy and Tom are my _(friend).Key:friends用所给的单词的复数的正确形式填空：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 great.5My brother looks after two _(baby)6There are some _(deer)ea

10、ting 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.选出正确形式选出正确形式1I can see three _ in the zoo.A monkeys B monkeys C monkey2.The pig has four _.A.foot B.feet C.foots3.My two brothers

11、are both _.A.policeman B.policemans C.policemen4.There are four _ in the class.A.Japanese B.Japaneses C.Japan5.I can see ten _ in the picture.A.sheep B.dog C.pig6.The _ has three_.A.boys,watches B.boy,watch C.boy,watches7.C an you see _on the plate?A.bread B.breads C.breades8.The girl often brushes

12、her_ before she goes to bed.A.tooth B.toothsC.teeth9.Mr Black often drink some _.A.milk B.milks C.milkes10.There are some _ on the floor.A.child B.water C.books句子单数变复数句子单数变复数1.This is a book.2.That is an eraser.3.It is a red apple.4.I am a boy.5.He/She is a teacher.6.Whats this?These are books.Those are erasers.They are red apples.We are boys.They are teachers.Whatre these?