名词单复数的用法PPT课件.ppt

人教版初中英语七年级上册第二单元名词单复数的用法单位：西村乡第一初级中学姓名：王兰课题编号：WKYJ15036参评类型：微课,.,2,名词单复数的概念,英语上名词按可数与否可分为可数名词【如：apple（苹果）ball（球）等】和不可数名词【如：water（水）等】可数名词按数目又可分为单数名词和复数名词两类.（注：不可数名词没有复数形式如water(水).）单数名词主要用来表示“一个”东西的概念.数量大于“1”就应用复数名词来描述.例：aball【一个球】（单数名词）somewater【一些水】（单数名词）twoballs【两个球】（复数名词）（注：water是不可数名词,只有单数形式,没有复数形式）,.,3,一般情况加-s1.清辅音后读/s/map-mapsbook-books2.浊辅音和元音后读/z/bag-bagscar-cars,名词复数的规则变化(1),.,4,以s,x,sh,ch等结尾的词加-es读/iz/bus-busesmatch-matches,以ce,se,ze,(d)ge等结尾的词加-s读/iz/exercise-exercisesbridge-bridges,名词复数的规则变化(2),.,5,以y结尾的专有名词，或元音字母+y结尾的名词变复数时，直接加-s变复数：twoMarystheHenrysmonkey-monkeysholiday-holidays,以辅音字母+y结尾变y为i再加es读/z/baby-babies,名词复数的规则变化(3),.,6,以f或fe结尾变f,fe为ves：如：half-halvesknife-knivesleaf-leaveswolf-wolveslife-livesthief-thieves特殊：roof-roofs均可：handkerchief-handkerchiefs/handkerchieves,名词复数的规则变化(4),.,7,sometomatoes,somepotatoes,someheroes,初中阶段以o结尾的名词复数主要是加-s,只有这几个加-es:Heroeslovetomatoesandpotatoes.,名词复数的规则变化(5),.,8,名词复数的不规则变化(1),man-men,woman-women,mendoctors,womenteachers,.,9,foot-feet,child-children,tooth-teeth,mouse-mice,名词复数的不规则变化(2),.,10,aGerman,someGermans,American-AmericansAustralian-AustraliansCanadian-Canadians,somepolicemen,apoliceman,EnglishmanEnglishmenFrenchman-Frenchmen,一些需要强调的表示人的名词复数,.,11,onesheep,twosheep,aChinese,twoChinese,aJapanese,severalJapanese,名词复数的不规则变化(3):单复数形式相同,.,12,onefish一条鱼,fishes不同种类的鱼各种各样的鱼,threefish三条鱼,somefish一些鱼肉,可数名词,不可数名词,名词复数的不规则变化(4):好玩的“fish”,.,13,PracticeMakesPerfect！,写出下列名词复数box_knife_bus_brush_ruler_peach_glass_pencil_boy_zoo_man_sheep_key_story_watch_city_family_day_apple_eraser_mouse_fish_Chinese_deer_foot_child_tooth_hero_monkey_city_radio_dog_,.,14,用所给的单词的复数的正确形式填空：1Therearesomany_(wolf)intheforest.2Therearethree_(chair)intheclassroom.3These_(tomato)arered.4Mybrotherlooksaftertwo_(baby)5Chinese_(people)liketoeatnoodles.6Ihavetwo_(pencil-box).7Therearesome_(bus)inthestreet.8Lindahasthree_(tooth).9Therearesome_(child)inthegarden.10Myuncleandfatherare_(man).,.,15,选出正确形式1Icanseethree_inthezoo.AmonkeiesBmonkeysCmonkey2.Mytwobrothersareboth_.A.policemanB.policemansC.policemen3.Therearefour_intheclass.A.JapaneseB.JapanesesC.Japan4.Icanseeten_inthepicture.A.sheepB.dogC.pig5.The_hasthree_.A.boys,watchesB.boy,watchC.boy,watches,.,16,Checktheanswer！,boxesknivesbusesbrushesrulerspeachesglassespencilsboyszoosmensheep（羊)keysstorieswatchescitiesfamiliesdaysappleserasersmice（老鼠）fishChinesedeer（鹿）feet（脚）childrenteethhero