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教学课件英语七年级上册人教版Unit7Howmucharethesesocks?SectionB1a-1eSaythenumbersquickly.Numbersteneleventwelvethirteenfourteenfour+teen→sixteenseventeennineteenfifteeneighteentwentytwen+ty→thirtythir+ty→twenty-onetwenty-twothirty-oneonetwothreefourfivesixseveneightnineteneleventwelvethirteenfourteenfifteensixteenseventeeneighteennineteentwentythirtyfortyfiftysixtyseventyeightyninetytwenty-one…twenty-ninethirty-one…thirty-nineforty-one…forty-ninefifty-one…fifty-ninesixty-one…sixty-nineseventy-one…seventy-nineeighty-one…eighty-nineninety-one…ninety-ninehundredLearnthesenumbersandfindouttherules:1:1---12:(记住每个单词)2:13---19:-teen(thir-,fif-,eigh-)3:20---90:-ty(twen-,thir-,for-,fif-,eigh-)4:21---99:十位__个位5:100---900:_______hundred6:101---999:_______hundredand个位十位__个位小结:Canyousolvetheseproblems?你们会做下列问题吗?two+nine=_________.three+nine=________.six+seven=__________.eight+six=_________.seven+eight=__________.nine+seven=_________.ten+seven=_________.ten+eight=_______.eleven+eight=_____.ten+ten=_______.twenty+one=__________.seventeen+thirteen=___________.eleventwelvethirteenfourteenfifteensixteenseventeeneighteennineteentwentytwenty-onethirtyListenandrepeat.101112131415161718192021222324252627282930311aRow1:ten___eleven___twelve___thirteen___fourteen___Row2:twenty-five___twenty-six___twenty-seven___twenty-eight____twenty-nine___Row3:twenty____twenty-one____twenty-two___twenty-three___twenty-four____Row4:fifteen______sixteen______seventeen______eighteen_______nineteen_____Row5:thirty____thirty-one_______Writethenumbersin1anexttothecorrectwords.Whichrowsofnumbersareinthewrongplaces?101112131425262728292021222324151617181930311aListenandcirclethenumbersyouhearin1a.101112131415161718192021222324252627282930311c☆教材解读☆基数词表示数目的词称为基数词。其形式如下:(1)1-10one,two,three,four,five,six,seven,eight,nine,ten(2)11-19eleven,twelve,thirteen,fourteen,fifteen,sixteen,seventeen,eighteen,nineteen这里除eleven,twelve,thirteen,fifteen,eighteen为特殊形式外,fourteen,sixteen,seventeen,nineteen都是由其个位数形式后添加后缀-teen构成。(3)21-99整数几十中除twenty,thirty,forty,fifty,eighty为特殊形式外,sixty,seventy,ninety都是其个位数形式后添加后缀-ty构成。表示几十几时,在几十和个位基数词形式之间添加连词符“-”。21twenty-one,76seventy-six。【拓展】基数词记忆规则歌诀:基数词不难记,找出规律很容易:零至十二形各异,加上-teen为十几,thirteen,fifteen看仔细,eighteen只有一个t;twenty却是很奇怪,forty本身也不乖,eighty一起搞例外,跟着也把规则坏;十位后面是个位,表示数字“几十几”,表示“几百几十几”,and常把百、十系。勤学妙记加练习,hundred就是你的好成绩。Listenagain.CirclethethingsinthepicturethatKateandhermomtalkabout.Check(√)thethingKatebuys.√1dAskandanswerquestionsaboutthethingsinthepictureabove.1eHowmuchisthewhitebag?It’sseventeendollars.Marybuysanewsweaterforherfather.（为她爸爸）Sheknowsherfatherwantsanewsweater.Andherfatherlikesblue.Doyouwanttobuysomethingsforyourparents?Doyouknowyourparents?你了解你的父母吗？Writing根据你对父母的了解，给你的父母买他们喜欢或想要的东西。所用句型参照3a中的对话请讨论是否增加一下句型：A:Whatsize(尺码)doyouwant?B:IwantSizeM.(中号)A:Twentydollars.Toodear(太贵了).Tendollars.OK?B:OK.ThingsPrice(价格)DadMomReport(报告):Myfatherlikes…Ibuy…formyfather.Mymotherlikes…Ibuy…formymother.汉翻英:11个足球14个西红柿23件衬衫28只红袜子35顶帽子33个乒乓拍45条短裤48件毛衣57个学生55个闹钟elevensoccerballsfourteentomatoestwenty-threeshirtstwenty-eightredsocks.thirty-fivehatsthirty-threeping-pongbatsforty-fivepantsforty-eightsweatersfifty-sevenstudentsfifty-fiveclocks1.抄写单词从ten----thirty两行,中文两次。2.预习SectionB。