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1、Lesson12Howmanyarethere?pencilThisisonepencil.pencilsThesearemanypencils.chairThisisachair.chairsThesearemanychairs.名词单数变复数的规则1:一般直接加sboxThisisabox.boxesThesearemanyboxes.busThisisabus.busesThesearethreebuses.名词单数变复数的规则2:以s,x,sh,ch结尾的可数名词的复数形式通常在其后加es.如class,bus,fox,dish,watch等tomatoThisisatomato.
2、tomatoesThesearemanytomatoes.potatoThisisapotato.potatoesThesearemanypotatoes.photophotophotoThisisaphoto.photosThesearemanyphotos.名词单数变复数的规则3:以o结尾的名词,有生命的加es,无生命的加s.但个别有生命的却加s.如:1.negro(黑人),hero(英雄),potato(土豆),tomato(西红柿)后加es;2.radio(收音机)photo(照片)后加s;3.特殊的kangaroo后加s.manThesearemenwomanThesearewo
3、menThisisachildThesearechildren名词单数变复数的规则4:有一些单词变复数时改变其中的字母或词尾发生变化,如man—menwoman—womenfoot—feettooth(牙)—teethgoose[guːs](鹅)—geesechild—childrenox[ɒːks](公牛)—oxen等知识延伸:名词单数变复数的规则5:1.以辅音+y结尾的名词,要把y变成i,再加es.如:baby—babies.family—families.2.以元音+y结尾的名词,要直接加s.如:boy—boys.3.以f或fe结尾的,要去掉f或fe,再加ves.如:wolf—wol
4、ves,leaf—leaves,wife—wives,knife—knives.4.单复数同形。如:sheep—sheep(绵羊),deer—deer(小鹿),people-—people,Chinese—Chinese等5.fish很特殊,fish用作可数名词指“鱼的条数”时单数和复数形式相同(twofish两条鱼),指“鱼的种类”时复数形式才为fishes(twofishes两种鱼);fish用作不可数名词时无复数形式,意为“鱼肉”,Helpyourselftosomefish.随便吃些鱼。)一、看图写单词.1.Theseare_______.2.Therearefive_______
5、_.3.Herearemany_______.4.Theseare_______.5.Herearesome_______.6.Herearethree________.7.Theseare________.childrenpencilsdresseswomenstampsbusesmen二.改错:1.Thisisonepencils.2.Lookatthesewoman.3.Therearefivechilds.4.Thereismanydishes.5.Howmuchpencilsarethere?6.Howmanybookdoyouhave?7.Thestudentsisreadin
6、gbooksnow.(pencil)(women)(children)(are)(many)(books)(are)三.改写句子:1.Thisisapencil.(复数)2.Hereisadish.(复数)3.Thesearesomebedrooms.(单数)4.Herearetwowomen.(单数)Thesearepencils.Herearedishes.Thisisabedroom.Hereisawoman.小结:名词单数变复数的规则1.一般直接加s2.以s,x,sh,ch结尾的可数名词的复数形式通常在其后加es.如class,bus,fox,dish,watch等。3.以o结尾的
7、名词,有生命的加es,无生命的加s.但个别有生命的却加s.如:(1).negro(黑人),hero(英雄),potato(土豆),tomato(西红柿)后加es;(2).radio(收音机)photo(照片)后加s;(3).特殊的kangaroo后加s.4.以辅音+y结尾的名词,要把y变成i,再加es.如:baby—babies,family—families.5.以元音+y结尾的名词,要直接加s.如:boy—boys.