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1、Unit 3 This is my sister.,one orange,two pears,six pears,two clocks,six computers,five cups,three apples,four bananas,nine apples,three boys,two girls,one dog,one cat two cats three cars four bikes five birds six pens seven apples eight oranges nine boxes ten buses,Whats this?Its a banana.What are t
2、hese?They are bananas.,Whats that?Its an orange.What are those?They are oranges.,What are those?,Whats that?,Its a watch.,They are watches.,不规则变化：manmen,woman women,photo photos,footfeet,a Chinese three Chinese,child-children,What are these?,Whats this?,Its a pen.,They are pens.,This is Jims friend.
3、,These are his friends.,This is his sister.,These are his sisters.,Do it together.,That is a baby.,Those are babies.,That is a dog.,Those are dogs.,Do it together.,What are these?,Whats this?,Its a map,They are maps,jeeps,bikes,apples,pens,bags,boxes,classes,buses,watches,fishes,babybabies,countryco
4、untries,tomatoes,potatoes,knifeknives,leafleaves,你看出规律了吗？,1.一般直接在名词后面加“S”,2.以 s,x,ch,sh,ss结尾的单词，必须加上es,3.以辅音字母+y结尾的单词，把Y变成i再加es,4.以辅音字母+O结尾的单词，后加es（photo除外）,5.以f或fe结尾的单词。把f变v再加es,What are those?,Whats that?,Its an English book.,They are English books.,What are these?They are.,What are those?They are
5、,Ask and answer,These are maps.,Those are clocks.,We are teachers.,They are boys.,these,those,they,we,are,you,you,形容词性物主代词名词（n.),名词所有格（The possessive case of nouns)1.单数名词加s。Mikes father Jims class my mothers name2.两个或两个以上的各自所有，则每个名词都要加s，后面的可数名词要用复数形式。Jims and Toms books 3.两个或两个以上的共同所有，则只在最后一个加s,后面的可
6、数名词用单数或复数形式要根据情况而定。Jim and Toms ruler Mary and Kates cases 4.以s结尾的复数名词加 the teachers room5.不以s结尾的复数名词加s mens shoes Womens Day,Those are erasers.,Are those erasers?Yes,they are./No,they arent.,They are girls.,Are they girls?Yes,they are./No,they arent.,Those are not erasers.,They are not girls.,（单）Th
7、is is a book,These are books.,（单）That is his brother.,Those are his brothers.,看 谁 做 得 快,（复）,（复）,用am,is 或are填空,1.This _my brother,these _my parents.2._that your sister?No,it isnt.3.This _my mother.Mom,this _Lin Hai.4.And these _my grandparents.5._Guo Ping your sister?Yes,she _.6.Hello,I _Lucy.And tha
8、ts Paul.He _my brother,is,are,Is,is,is,are,Is,is,am,is,Fill in the blanks：1.Lucy is a girl.She is her fathers _.2.Jim is his fathers _.3.My fathers sister is my.4.Kates fathers brother is her _.5.Tims father is my uncle,so Tim is my _.6.His parents are his _ and _7.My grandparents are my _ and_.,Exercise,daughter,son,aunt,uncle,cousin,father,mother,grandfather,grandmother,
