1、名词名词单数单数变变复数复数-What are these?-Whats this?-Its a pen.-They are pens.-What are those?-Whats that?-Its an English book.-They are English books.backpackswatchesorangespens-Whatre these?-Theyre .mapscaseskeys-Whatre those?-Theyre .名词单数变复数名词单数变复数(一一)规则变化规则变化: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
2、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,再加再加eses(mothers,fathers,sisters,brothers)(buses,boxes,watches)(family -families dictionary-dictionaries)区别区别 key keys boy-boys(二二)不规则变化不规则变化:2.man,woman men,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)无无生命的在词尾加生命的在词尾加s:zoo(动物园动物园)zoo
3、s 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）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）（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(
4、小刀小刀)-knives shelf(架子架子)shelves leaf (叶子叶子)-leaves wolf(狼狼)-wolves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/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 pen desk key box knife card orange boy friend parent m
5、other father sister brother son daughter cousin family child man pencil case sheepssssesknivessssssssssssfamilieschildrenmenssheep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）this that I you he/she/it am/is thesethoseweyoutheyare
6、单数单数 复数复数一、写出下列单词的复数一、写出下列单词的复数1.I-2.am-3.he 4.pencil-5.watch-6.dictionary-7.man-8.it-9.parent-10.boy wearetheypencils watchesdictionaries men they parentsboys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
7、are erasers.They are red apples.We are boys.They are teachers.Whatre these?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 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
8、 mother?Yes,it/she is.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.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.4.Her family names Smith.5.My jacket is l
9、ight 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.句型转换句型转换1.Whats this?1.Whats this?复数复数 Whatre these?2.Hes a Chinese boy.2.Hes a Chinese boy.复数复数Theyre Chinese boys.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，
10、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?Yes,it is.4.That is my brother.4.That is my brother.否定句否定句一般疑问句，并作否定回答一般疑问句，并作否定回答That is not my brother.Is that your brother?No,it/he isnt.5.These are 5.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?
