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名词变复数的规则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abag—bags[bægz]cup—cups[kʌps]row—rows[rəuz]2、以s,ss,x,ch,sh等结尾的词，词尾加—es，读[iz]。例词：box—boxes[bɔksiz]watch—watches[wɔtʃiz]class—classes[klɑ:siz]3、以ce，se，ge等结尾的词，词尾加—s，读[iz]。例词case—cases[keisiz]race—races[reisiz]4、以“辅音字母+y”结尾的词变y为I，再加—es，读[z]。例词：lobby—lobbies['lɔbiz]duty—duties['dju:tiz]family-families['fæmiliz]5、以“元音字母+y”结尾的词，词尾加—s，读[z]。例词：boy—boys[bɔiz]6、以fe或f结尾的词变f为v再加—s或—es，读[vz]。例词：leaf—leaves[li:vz]thief—thieves[θi:vz]wife—wives[waivz]7、以“辅音字母+o”结尾的名词，词尾加—es，读[z]。例词：hero—heroes['hiərəuz]potato—potatoes[pə'teitəuz]tomato—tomatoes[tə'mɑ:təuz]8、以“元音字母+o”结尾的名词词尾加—s，读[z]。例词：radio—radios['reidiəuz]zoo—zoos[zu:z]9、单复数同形，保持原音。例词：fish—fishsheep—sheepcattle—cattledeer—deer10、复数形式没有任何规律例词：man—menwoman—womenchild—childrenfoot—feet11、除人民币元、角、外，美元、英镑、欧元等都有复数形式。例词adollar—twodollarsonepound—twopounds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。名词单数变复数(一)规则变化:1.加s2.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--familiesdictionary--dictionaries)区别key–keysboy--boys(二)不规则变化:4.单复数同形(不变):sheep(绵羊)deer(鹿)fish(鱼)2.man,womanmen,women1.加es:potatoes(土豆)tomatoes(西红柿)Chinese(中国人)Japanese(日本人)6.ooee：foot(脚)tooth(牙齿)goose(鹅)5.以f/fe结尾的,变f为v,再加eswife(妻子)knife(小刀)shelf(架子)leaf(叶子)wolf(狼)3.child（孩子）children（男人，妇女）名词单数变复数后s/es的读音1.在清辅音后读/s/2.在元音和浊辅音后读/z/3.在/s//z//∫////t//d/后读/iz/4.在/t/后读/ts/，在/d/后读/dz/∫desksmapsbrotherspensclasses,watches,orangescats,friendspendeskkeyboxknifecardorangeboyfriendparentmotherfathersisterbrothersondaughtercousinfamilychildmanpencilcasesheepssssesknivessssssssssssfamilieschildrenmenssheep句子单数变复数1.Thisisabook.2.Thatisaneraser.3.Itisaredapple.4.Iamaboy.5.He/Sheisateacher.6.What’sthis?Thesearebooks.Thoseareerasers.Theyareredapples.Weareboys.Theyareteachers.What’rethese?this–that–I–you–he/she/it–am/is–thesethoseweyoutheyare单数复数一、写出下列单词的复数1.I--2.am--3.he–4.pencil--5.watch--6.dictionary--7.man--8.it--9.parent--10.boy–wearetheypencilswatchesdictionariesmentheyparentsboys二、句型转换1.Thisismymother.1）变否定句2）变一般疑问句，并作肯定回答Thisisnotmymother.Isthisyourmother?Yes,it/sheis.2.Thatisacar.1）变否定句2）划线提问3)变复数句Thatisnotacar.What’sthat?Thosearecars.3.That’sanEnglishdictionary.1）变否定句2）变一般疑问句，并作否定回答That’snotanEnglishdictionary.IsthatanEnglishdictionary?No,itisn’t.4.Herfamilyname’sSmith.5.Myjacketislightblue.6.is,that,brother,my,Dave组词成句划线提问划线提问What’sherfamilyname?Whatcolorisyourjacket?Thatismybrother,Dave.句型转换1.What’sthis?复数What’rethese?2.He’saChineseboy.复数They’reChineseboys.3.Thisisabike.否定句复数句一般疑问句，并作肯定回答Thisisnotabike.Thesearebikes.Isthisabike?Yes,itis.4.Thatismybrother.否定句一般疑问句，并作否定回答Thatisnotmybrother.Isthatyourbrother?No,it/heisn’t.5.Thesearedictionaries.单数一般疑问句,并作肯定回答划线提问Thisisadictionary.Arethesedictionaries?Yes,theyare.Whatarethese?be动词：根据人称和数应有am，is，are三种形式的变化。我用am,你用are,is连着他,她,它;单数名词用is,复数名词全用are.变否定,更容易,be加not就可以;变问句,be前提,句末问号莫忘记.3.词汇A)用下列所给单词的适当形式填空。1.Look!Are(that)maps?2.Where(be)thechildren’smother?3.Five(backpack)areonthebed.4.MrWanghastwo(pencil).Oneisblueandtheotherisred.5.Mum,(these)ismyfriend.thoseisbackpackspencilsthis练习1.—Whatdoyouwant?—Iwant___.A.pieceofbreadB.twopieceofbreadC.abreadD.somebread2.___isstandingatthecornerofthestreet.A.ApoliceB.ThepoliceC.PoliceD.Apoliceman3.Canyouseenine________inthepicture?A.sheepB.dogC.pigD.horse4.The_______hastwo___________.A.boys,watchesB.boy,watchC.boy,watchesD.boys,watch5.BothMarxandEngleswere_____.A.GermanB.GermansC.GermanyD.fromGerman3.Canyouseenine________inthepicture?A.sheepB.dogC.pigD.horse4.The_______hastwo___________.A.boys,watchesB.boy,watchC.boy,watchesD.boys,watch5.BothMarxandEngleswere_____.A.GermanB.GermansC.GermanyD.fromGerman6.Everymorningbeforeheleaves,hismotherwouldputsome______inhisbag.A.orangeB.oranges7.Weallbelievethatourteam____thestrongestofall.A.isB.areA.orangeB.oranges7.Weallbelievethatourteam____thestrongestofall.A.isB.are6.Everymorningbeforeheleaves,hismotherwouldputsome______inhisbag.