小学名词变复数PPT课件

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

3、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

4、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)。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-mic

5、e; 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)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_ b

6、alconiesboysfeetpotatoesphotosmenbabiestomatoeswatcheswomenknivessheepbooksboxeschildrenpianosleavesbedsbusesorangescountries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-bir

7、dsladiesorangesrulerscatsboysgirlscaseswiveswatchestreeskeysquestionsbedsheroesfriendsfamiliesdictionariesphotoscardsleavespartiescups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.

8、 These _(tomato) are red. 4. There is some _ (water) in the glass.5. My 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 era

9、sers.They are red apples.We are boys.They are teachers.Whatre these ?第16页/共19页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