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第三课时,Letssing,henhenscowcowshorsehorses,potatopotatoestomatoestomatoes,sheepsheepdeerdeer,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。,Howmanysheepdoyouhave?,Ihavethree.,Letstalk,Listenandfillintheblanks.1.Theseare_(羊).2.Howmanyhensarethereatthefarm?_three.,Thisismyfarm.Itsbig.,Arethese?,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,Thisisasheep.（变复数句）_Theyaresomecows.(变单数句)_Thesearesomeducks._（变一般疑问句并作肯定回答）Theyarebeautifulhorses._(对画线部分提问)Theyaremyhens._（变一般疑问句并作否定回答）Ihavesixpigs._(对画线部分提问),Homework:(1)Copythenewwordsandsentences.(2)Makeanewdialogueandactitout.(结合本课学习内容编排一段含有名词复数的问答对话),
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