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1、名词单数变复数,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.,schoolbags,watches,oranges,pens,-Whatre these?-Theyre.,maps,cases,keys,-Whatre thos
2、e?-Theyre.,单数,复数,可数名词,如何变化？,规则变化,认真比较下列单词，找出变化规律。,an orange,oranges,a dog,dogs,a bird,birds,1.一般情况下，直接在词尾加-s构成复数形式。,car,schoolbag,cars,schoolbags,book,books,大家能找出什么规律呢？,name,pen,card,ruler,names,pens,cards,rulers,练一练,仔细观察你能得出什么规律呢？,a box,boxes,a watch,watches,a brush,brushes,dishes,foxes,buses,bus,b
3、uses,foxes,dishes,2.以s,x,ch,sh等结尾的名词，在词尾加-es构成复数形式。,请观察这些单词的复数变化与前面看的那些有什么不同呢？,给下列可数名词加复数,bird-card-bus-orange-ruler-box-friend-boy-watch-brush-case-cat-dress-tree-key-bed-kiss-peach-glass-question-dish-church-cup-,birds,buses,oranges,rulers,cats,boys,brushes,cases,dresses,watches,trees,keys,questio
4、ns,beds,kisses,friends,peaches,glasses,boxes,cards,dishes,churches,cups,birds,cards,buses,birds,cards,boxes,buses,birds,cards,watches,boxes,buses,birds,cards,rulers,watches,boxes,buses,birds,cards,oranges,rulers,watches,boxes,buses,birds,cards,friends,oranges,rulers,watches,boxes,buses,birds,cards,b
5、rushes,friends,oranges,rulers,watches,boxes,buses,birds,cards,boys,brushes,friends,oranges,rulers,watches,boxes,buses,birds,cards,cases,boys,brushes,friends,oranges,rulers,watches,boxes,buses,birds,cards,cats,cases,boys,brushes,friends,oranges,rulers,watches,boxes,buses,birds,cards,keys,cats,cases,b
6、oys,brushes,friends,oranges,rulers,watches,boxes,buses,birds,cards,trees,keys,cats,cases,boys,brushes,friends,oranges,rulers,watches,boxes,buses,birds,cards,dresses,trees,keys,cats,cases,boys,brushes,friends,oranges,rulers,watches,boxes,buses,birds,cards,beds,dresses,trees,keys,cats,cases,boys,brush
7、es,friends,oranges,rulers,watches,boxes,buses,birds,cards,名词单数变复数口诀,(一)规则变化1.名词单数变复数，直接加-s 占多数；book-books;pen-pens;apple-apples2.s,x,z,ch,sh 来结尾，直接加上-es；dress-dresses;box-boxes;buzz(翁翁声）-buzzes;watch-watches;brush（刷子）-brushes 3.词尾是 f 或 fe，加-s 之前先变 ve；leaf-leaves;wife-wives;knife-knives,4.辅音字母+y 在词尾，
8、把 y 变 i 再加-es；study-studies;baby-babies;city-cities5.元音字母+y在词尾,只加s就足够boy boys;day days;monkey monkeys6.词尾字母若是 o，常用三个已足够，要加-es 请记好，hero,tomato,potato。美国黑人和英雄爱吃土豆和西红柿。negro-negroes;hero-heroes;potato-potatoes;tomato-tomatoes其余o结尾的词加s,photo-photos;piano-pianos,(二)不规则变化1.男人女人 a 变 e，鹅足牙 oo 变 ee；man-men;w
9、oman-women;goose-geese;foot-feet;tooth-teeth2.老鼠虱子也好记，ous 变 ic；mouse-mice;louse-lice3.孩子加上 ren，鱼鹿绵羊不用变child-children;fish;deer;sheepthis-these(这些)that-those(那些),（单）This is a book.,These are books.,（单）That is his brother.,Those are his brothers.,看 谁 做 得 快,（复）,（复）,（单）It is an orange.,They are oranges.
10、,（复）,（单）What is this in English?,（复）What are these in English?,（单）What color is it?,（复）What color are they?,（单）It is red.,（复）They are red.,用am,is 或are填空,1.This _my brother,these _my parents.2._ that your sister?No,it isnt.3.This _ my friend Lin Hai.4.And these _my grandparents.5._Guo Ping your sister?Yes,she.6.Hello,I _Lucy.And thats Paul.He _my brother.,_,is,are,Are,is_,are,Is,is,am,is,
