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1、名词变复数A bookThis is a book.This is a chinese book.These are some books.Whats this?What are these?Its a book.They are books.第1页/共19页Whats this in English?Its an apple.What are these?They are two apples.第2页/共19页-What are these?-Whats this?-Its a pen.-They are pens.第3页/共19页-What are those?-Whats that?-I
2、ts an English book.-They are English books.第4页/共19页bagswatchesorangespens-Whatre these?-Theyre .第5页/共19页mapscaseskeys-Whatre those?-Theyre .第6页/共19页This _.These _.is a treeare two treesare some trees第7页/共19页名词变复数1一般在名词后面加上“s”:bookbooks，bagbags 2以s,x,sh,ch，等结尾的词加“es”:busbuses，watchwatches3以辅音字母y结尾的词，
3、变y为i加es，babybabies以元音字母 y结尾的名词变复数时，直接加s变复数，boy boys第8页/共19页以o 结尾的名词变复数(a）加s的名词photophotos，pianopianos，radioradios，zoozoos(b）水果、蔬菜、人这样的单词加espotatopotatoes(土豆)tomatotomatoes（西红柿）mango-mangoes(芒果)Negro-negroes(黑人）hero-heroes（英雄）黑人英雄喜欢吃土豆、西红柿和芒果。（简称两人两菜）第9页/共19页以f或fe结尾的名词变复数 去掉f，fe 加ves half（一半）halves k
4、nife（小刀）knives leaf（树叶）leaves wolf（狼）wolves wife（妻子）wives life（生活）lives thief（小偷）thieves“小偷”(thief)的“妻子”(wife)用“刀子”(knife)和“树叶”(leaf)把“狼”(wolf)劈成两“半”(half)。第10页/共19页(二)不规则变化男人女人 a 变 e，鹅足牙 oo 变 ee；man-men;woman-women;goosegeese;foot-feet;tooth-teeth老鼠虱子也好记，ous 变 ic；mouse-mice;louse-lice孩子加上 ren，鱼鹿绵羊不
5、用变child-children;fish;deer;sheepthis-these(这些)that-those(那些)第11页/共19页将下列名词变复数（练习）1、orange 2、bus 3、book _4、box 5、piano 6、child _ 7、leaf 8、bed 9、country _ 10、balcony 11、boy 12、foot _ 13、potato 14、photo 15、man _ 16、baby 17、tomato 18、watch _ 19、woman 20、knife 22、sheep_ balconiesboysfeetpotatoesphotosmen
6、babiestomatoeswatcheswomenknivessheepbooksboxeschildrenpianosleavesbedsbusesorangescountries第12页/共19页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-birdsladiesorangesrulerscatsboysgirlscaseswiveswatchestree
7、skeysquestionsbedsheroesfriendsfamiliesdictionariesphotoscardsleavespartiescups第13页/共19页this that I you he/she/it am/is thesethoseweyoutheyare 单数单数 复数复数第14页/共19页1.There are so many_(leaf)on the trees.2.It has two _(study)in the rooms.3.These _(tomato)are red.4.There is some _(water)in the glass.5.My
8、 brother looks after two _(baby)练习leavesstudiestomatoeswaterbabies第15页/共19页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?第16页/共19页
9、复数句子变单数句子复数句子变单数句子 These are These are dictionariesdictionaries.单数单数一般疑问句一般疑问句,并作肯定回答并作肯定回答划线提问划线提问 This is a dictionary.Are these dictionaries?Yes,they are.What are these?第17页/共19页Sum up:1.一般情况下一般情况下,直接在名词词尾加直接在名词词尾加-s.2.以以s,x,sh,ch结尾的名词结尾的名词,在词尾加在词尾加-es.3.以辅音字母加以辅音字母加y结尾的名词，要变结尾的名词，要变y为为i再加再加-es.5.以以f或或 fe结尾的名词，先将结尾的名词，先将f或或 fe变为变为v,再加再加-es.6.以以o结尾的名词结尾的名词,表示无生命事物的名词加表示无生命事物的名词加-s,表示有生命事物的名词加表示有生命事物的名词加-es。4.以以“元音字母元音字母+y”结尾的名词，直接在词尾加结尾的名词，直接在词尾加-s.第18页/共19页谢谢您的观看！第19页/共19页