《小学名词变复数》PPT课件.ppt

名词,名词：是指人或事物名称的词。,名词,专有名词 China,普通名词,个体名词 book,集体名词 family,物质名词 water,抽象名词 work,不可数名词,可数名词,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.,Whats this in English?,Its an apple.,What are these?,They are two apples.,-What are these?,-Whats this?,-Its a pen.,-They are pens.,-What are those?,-Whats that?,-Its an English book.,-They are English books.,bags,watches,oranges,pens,-Whatre these?-Theyre.,maps,cases,keys,-Whatre those?-Theyre.,This _.,These _.,is a tree,are two trees,are some trees,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，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,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）,以f或fe结尾的名词变复数,去掉f，fe 加ves half（一半）halves knife（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)。,(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，鱼鹿绵羊不用变child-children;fish;deer;sheepthis-these(这些)that-those(那些),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_,balconies,boys,feet,potatoes,photos,men,babies,tomatoes,watches,women,knives,sheep,books,boxes,children,pianos,leaves,beds,buses,oranges,countries,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-,birds,ladies,oranges,rulers,cats,boys,girls,cases,wives,watches,trees,keys,questions,beds,heroes,friends,families,dictionaries,photos,cards,leaves,parties,cups,this that I you he/she/it am/is,these,those,we,you,they,are,单数 复数,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 brother looks after two _(baby),练习,leaves,studies,tomatoes,water,babies,句子单数变复数This is a book.That is an eraser.It is a red apple.I am a boy.He/She is a teacher.Whats this?,These are books.Those are erasers.They are red apples.We are boys.They are teachers.Whatre these?,复数句子变单数句子 These are dictionaries.单数一般疑问句,并作肯定回答划线提问,This is a dictionary.,Are these dictionaries?Yes,they are.,What are these?,Sum up:,1.一般情况下,直接在名词词尾加-s.,2.以s,x,sh,ch结尾的名词,在词尾加-es.,3.以辅音字母加y结尾的名词，要变y为i再加-es.,5.以f或 fe结尾的名词，先将f或 fe变为v,再加-es.,6.以o结尾的名词,表示无生命事物的名词加-s,表示有生命事物的名词加-es。,4.以“元音字母+y”结尾的名词，直接在词尾加-s.,