直接就用名词单数变复数

1、直接就用名词单数变复数课件第1页，共22页。-What are these?-Whats this?-Its a pen.-They are pens.第2页，共22页。-What are those?-Whats that?-Its an English book.-They are English books.第3页，共22页。backpackswatchesorangespens-Whatre these ?-Theyre .第4页，共22页。mapscaseskeys-Whatre those ?-Theyre .第5页，共22页。名词单数变复数名词单数变复数( (一一) )规则变化规

2、则变化: :1.1.加加s s 2.2.加加s, x, ch, shs, x, ch, sh结尾的名词加结尾的名词加eses3.3.以辅音字母加以辅音字母加y y结尾的名词结尾的名词, ,先改先改y y为为i, i, 再再加加eses (mothers, fathers, sisters, brothers)( buses, boxes, watches )( family - families dictionary - dictionaries ) 区别区别 key keys boy - boys第6页，共22页。( (二二) )不规则变化不规则变化: :2. man, woman men,

3、 women1.以以o结尾的名词有生命的加结尾的名词有生命的加es: potatoes (土豆土豆) tomatoes (西红柿西红柿)无生命的在词尾无生命的在词尾加加s :zoo(动物园动物园)zoos radio（收音机）（收音机）-radios photo(照片）照片）-photosChinese(中国人中国人) Japanese(日本人日本人) 3. child（孩子）孩子） children（男人，妇女）男人，妇女）第7页，共22页。4.单复数同形单复数同形(不变不变): sheep(绵羊绵羊) deer(鹿鹿) fish(鱼鱼) ,people(人，人民）人，人民）mouse（老鼠

4、）（老鼠）-mice5. oo ee： foot(脚脚)feet tooth(牙齿牙齿) -teeth goose(鹅鹅)-geese6. 以以 f / fe结尾的结尾的,变变f为为v, 再加再加es wife(妻子妻子) wives knife (小刀小刀) -knives shelf (架子架子)shelves leaf (叶子叶子) -leaves wolf (狼狼)-wolves第8页，共22页。名词单数变复数后名词单数变复数后s / es 的读音的读音1.在清辅音后读在清辅音后读 / s /2.在元音和浊辅音后读在元音和浊辅音后读 / z /3.在在/ s / / z / / / /

5、 / t / / d /后后 读读 / iz /4.在在/ t /后读后读/ ts /，在在 / d /后读后读 / dz /desks mapsbrothers pensclasses, watches, orangescats, friends 第9页，共22页。pen desk key box knife card orange boy friend parent mother father sister brother son daughter cousin family child man pencil case sheepssssesknivessssssssssssfamilie

6、schildrenmenssheep第10页，共22页。名词单数变复数 tomato (西红柿） hero（英雄） negro （黑人）radio （收音机） photo （照片）life（生命） knife （小刀）thief（ 贼 ）roof （屋顶） zoo （动物园）piano（ 钢琴）potato （土豆）第11页，共22页。this that I you he / she / it am / is thesethoseweyoutheyare 单数单数 复数复数第12页，共22页。一、写出下列单词的复数一、写出下列单词的复数 I- 2.am- 3.he 4.pencil- 5.wa

7、tch- 6.dictionary- 7. man- 8.it- 9. parent - 10.boy wearetheypencils watchesdictionaries men they parentsboys第13页，共22页。句子单数变复数句子单数变复数 This is a book. That is an eraser. It is a red apple. I am a boy. He / She is a teacher.1. Whats this ? These are books.Those are erasers.They are red apples.We are b

8、oys.They are teachers.Whatre these ?第14页，共22页。 7. This is a dictionary 8 That is your brother 9 She is a girl 10 It is an ID card 11 He is my uncle 12 I am a student 第15页，共22页。二、句型转换二、句型转换1.This is my mother. 1）变否定句）变否定句 2）变一般疑问句，并作肯定回答）变一般疑问句，并作肯定回答This is not my mother.Is this your mother ?Yes, it

9、 / she is.第16页，共22页。2.That is a car.1）变否定句）变否定句 2）划线提问）划线提问3) 变复数句变复数句That is not a car.Whats that?Those are cars.第17页，共22页。3.Thats an English dictionary.1）变否定句）变否定句 2）变一般疑问句，并作否定回答）变一般疑问句，并作否定回答Thats not an English dictionary.Is that an English dictionary?No, it isnt.第18页，共22页。4.Her family names Sm

10、ith.5.My jacket is light blue.6. is, that, brother, my, Dave 组词成句组词成句划线提问划线提问划线提问划线提问Whats her family name?What color is your jacket?That is my brother , Dave.第19页，共22页。句型转换句型转换1.1.WhatWhats this ? s this ? 复数复数 Whatre these ?2.He2.Hes a Chinese boy. s a Chinese boy. 复数复数Theyre Chinese boys.第20页，共22页。 3.This is a bike. 3.This is a bike. 否定句否定句复数句复数句一般疑问句，并作肯定回答一般疑问句，并作肯定回答This is not a bike.These are bikes.Is this a bike ?Ye