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B Lets learn,Lets sing,henhens cowcows horsehorses,potatopotatoes tomatoestomatoes,sheepsheep deerdeer,认识单复数的变化,1一般名词复数是在名词后面加上“s”; 2以s， sh， ch， x等结尾的词加“es”; 3以辅音字母y结尾的词，变y为i加es； 以元音字母 y结尾的名词变复数时，直接加s变复数； 4以有生命的植物o 结尾的名词变复数时加es； 5以f或fe结尾的名词变复数时，去掉f， fe 加ves。,How many sheep do you have?,I have three.,Lets talk,Listen and fill in the blanks. 1.These are _(绵羊). 2. How many hens are there at the farm? _ _ three.,This is my farm. Its big.,Are these?,练习题 (1)单复数的变化sheep_cow_ hen_ duck_ chick_horse_ pig_ goose_ cat_ do_ it_ this_ that_ is_,(2)句型转换,This is a sheep.（变复数句） _ They are some cows. (变单数句) _ These are some ducks._ （变一般疑问句并作肯定回答） They are beautiful horses._ (对画线部分提问) They are my hens._ （变一般疑问句并作否定回答） I have six pigs._ (对画线部分提问),Homework: (1)Copy the new words and sentences. (2)Make a new dialogue and act it out.(结合本课学习内容编排一段含有名词复数的问答对话),同学们,来学校和回家的路上要注意安全,同学们,来学校和回家的路上要注意安全,
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