名词单数变复数.ppt

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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 a book.-They are books.Are they English books?Yes, they are.What are they?No, they arent.Are those oranges?They are apples.toysorangesapples-Whatre these ?-Theyre .mapsschoolbagskeys-Whatre those ?-T

2、heyre .1b Complete the conversations and then practice with your partner.A: what are these?B: _ _ schoolbags.A: Thank you .B: Thats OK.A:_ _ _ ?B: They are books.A: Thanks .B: Youre welcome.A: Are those apples?B: _ _ _ ?A: What are they?B: They are _.A: Thanks.B: Youre welcome.A: Are _cakes?B: _ , _

3、 _ .A: Thank you.B:_ _.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 (desks, maps, pencils, teachers)( buses, boxes, watches )( family - families dictionary - dictionaries ) 区别区别 key keys boy - boys( (

4、二二) )不规则变化不规则变化: :3.单复数同形单复数同形(不变不变): sheep(绵羊绵羊) deer(鹿鹿) English(英国人英国人) 1.man, woman men, womenChinese(中国人中国人) Japanese(日本人日本人) 6. oo ee： foot(脚脚) tooth(牙齿牙齿) goose(鹅鹅)5. 以以 f / fe结尾的结尾的,变变f为为v, 再加再加eswife(妻子妻子) knife (小刀小刀) shelf (架子架子) leaf (叶子叶子) wolf (狼狼)2. child（孩子）（孩子） children（男人，妇女）（男人，妇女

5、）pen desk key box knife card orange boy friend cars parent mother father sister brother son daughter cousin family child man pencils sheepsssses-knivessssssssssssfamilies-children-men-sheepthis that I you he / she / it am / is thesethoseweyoutheyare 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.p

6、encil- 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 are erasers.They are red ap

7、ples.We are boys.They are teachers.Whatre these ?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.5.These are 5.These are orangesoranges. .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 This is a dictionary.Are these dictionaries ? Yes, they are.