Lesson17（课件）新概念英语第一册

What did we learn last week? 名词复数口诀 名词复数很简单，一般s加后边。 末尾要加es，sh，ch，s，x。 尾巴f，fe去掉再加ves。 辅音加y很重要，把y变i再加es。 a tooth a foot three teeth two feet 牙足鹅 oo 变 ee a goose four geese Oral practice. 1.It’s a __________.(goose) 2.They are my_________.(tooth) 3.That is a__________.(foot) 4.These are________.(goose) 5.This is a __________.(tooth) 6.Those are _________.(foot) goose teeth foot geese tooth feet one man one woman two men four women 男人女人a 变 e 英法-a 变 e an Englishman two Englishmen three Frenchmen a Frenchman Oral practice. 1.My father is a__________.(man) 2.His sisters are_________.(woman) 3.Our teachers are __________.(Frenchman) 4.He is an __________.(Englishman) 5.Those are _________.(foot) man women Frenchmen Englishman feet 其他S加后面 a German two Germans A goose has two feet. 探索发现 主题色 强调色 正文色 搭配色 8 A mouse has four feet. 探索发现 主题色 强调色 正文色 搭配色 9 There are 15 mice and 50 geese in the same cage, so can you tell me how many feet are there in this cage? ×15 ×50 探索发现 主题色 强调色 正文色 搭配色 10 15×4+50×2=？ There are ____ feet in this cage. ×15 ×50 160 探索发现 主题色 强调色 正文色 搭配色 11 A man has twenty-eight teeth. 探索发现 主题色 强调色 正文色 搭配色 12 A child has twenty teeth. 探索发现 主题色 强调色 正文色 搭配色 13 There is a woman, ten men and fifteen children in the same room, so can you tell me how many teeth are there in this room? ×10 ×15 ×1 探索发现 主题色 强调色 正文色 搭配色 14 1×28+10×28+15×20=？ There are ____ teeth in this room. ×10 ×15 ×1 608 探索发现 主题色 强调色 正文色 搭配色 15 Chinese sheep sheep Chinese 单复同形 fish fish Japanese Japanese Conclusion Tip1： 中日不变， 英法变， 其他s加后面 child children 5. 两个名词变复数，前不变，后变 apple tree man doctor woman nurse （除了man和woman） apple trees men doctors women nurses woman nurse keyboard operator office assistant man doctor 1、把a 变成e：man---men woman---women milkman—_____________ policewoman—_________ Englishman—__________ Frenchman—____________ Frenchmen milkmen policewomen Englishmen 2、(由两个名词构成) “复合名词” 变法： keyboard operator—________________ office assistant—_______________ man doctor—_____