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词性分类7.121名词nounn.Countable[C]Uncountable[U]theEarth、China、theGreatWall2可数名词①复数形式变化条件变化例词注意\一般情况下在词尾直接加—sbook—bookscap—capstree—treesdog—dogs以-s、-x、-ch、-sh结尾的名词在词尾加-esglass-bus-box-watch-brush-glassesbusesboxeswatchesburshesstomach-stomachs1.规则变化3条件变化例词注意部分以-f、-fe结尾的名词把-f或-fe改为-v再加-esself-selvesthief-thievesknife-knivesshelf-shelvesleaf-leaveslife-liveswife-wiveshalf-halveswolf-wolves妻见小偷架下藏手拿小刀想杀狼谁知落下半片叶砸在头上一命亡roof-roofsbelief-beliefsproof-proofs证据有些只能加-s，如：以辅音字母加-y结尾的名词把-y改为-i再加-esbaby-story-country-party-babiesstoriescountriesparties以元音字母加-y结尾的单词直接加-sboy-boysday-daysa、e、i、o、u4条件变化例词注意以辅音字母加-o结尾的名词词尾加-espotato-potatoeshero-heroestomato-tomatoesNegro-Negroes黑人Negroesandheroesliketoeatpotatoesandtomatoesphoto、piano、radio、zoo只加-s要记住2.不规则变化变化例词元音字母发生变化改-a为-e改-oo为-eeman-menwoman-womenpoliceman-policemenspaceman-spacemenfoot-feettooth-teethgoose-geese5变化例词单复数同形sheep-sheepdeer-deerfish-fishpeople-people注意：①fish表示“鱼肉”是不可数名词②表示“鱼的多少”时，是可数名词，但单数和复数同形如：Therearemanyfishintheriver.③强调“鱼的种类”时，复数是fishes如：Therearemanykindsoffishesintheriver.有些名词常以复数形式出现trousers、socks、gloves、shoes注意：要表达它们的量，常借助pair一词如：apairoftrousers一条裤子twopairsofgloves两副手套6变化例词表示“某国人”单复数同形词尾加-s变man为menaChinese-twoChineseaJapanese-twoJapaneseGerman-GermansAmerican-AmericansEnglishman-EnglishmenFrenchman-Frenchmen其他形式child-childrenmouse-mice★①“the+姓氏复数”表示“一家人或夫妇二人”例如：theGreens格林一家\格林夫妇theBlacks布莱克一家\布莱克夫妇②名词作定语时，不用复数形式例如：ashoeshop一家鞋店anappletree一棵苹果树appletreeses苹果树③man,woman作定语时，如果后面的名词是复数，则man、woman也要跟着变成复数如：awomanteacher-twowomenteathers7不可数名词①可以修饰不可数名词的词或短语alotof\lotsof,some,much,alittle,little,plentyof,abitof,alargeamountof②数词+容器+of+不可数名词aglassofwater-twoglassesofwater③常用的不可数名词food,meat,fish,chicken,pork,beef,orange,milk,tea,water,bread,homework,news,paper,rain,snow,air,maths,Chinese,work,fun,imformation,advice④既能做可数名词，又能做不可数名词英语单词可数名词不可数名词beauty美人美丽life人命、性命生命、生活orange橘子橘子汁、橘黄色paper报纸、试卷纸room房间空间light电灯光81.-Howmanydoyouwant?-Akilo，please.A.potatoB.breadC.bananasD.milk2.-Wouldyoulikesomethingtodrink?-Yes,,please.A.twocupofcoffeeB.twopiecesofbreadC.twocupsofcoffeeC.twohamburgers3.-Women'sDayiscoming.I'lldosomethingformyteachers.Canyougiveme?-Ok.Noproblem!Youcanbuysomeflowersfor.A.someadvices;womanteachersB.somesuggestions;womenteachersC.someadvice;womenteachersD.someadvice;womanteachers9