unit9.Its_one_hundred 2

舜德小学精品课件备课：四年级英语组2013.12unit9it'sonehunderd展开课题退出舜德小学信息技术小组舜德小学精品课件目标导航展开目标语言：homework,right,wrong,1-100数字句型：fortyandtwentyissixty;isitright?应用目标：英语表达一百以内的加法教学重难点：重点homework,right,wrong,1-100数字难点区别fifteen与fiftyTwo,twelve,twenty;three,thirteen,thirty;four,fourteen,forty;five,fifteen,fifty退出舜德小学信息技术小组舜德小学精品课件导入Trytocountthenumbers（数一数钟面上的数字）1one2two3three4four5five6six7seven8eight9nine10ten11eleven12twelve13thirteen14fourteen15fifteen16sixteen17seventeen18eighteen19nineteen★13-19数词构成方法：在有关的个位数词词尾加-teenLet’sread12345678910111213141516171819onetwothreefourfivesixseveneightnineteneleventwelvethirteenfourteenfifteensixteenseventeeneighteennineteenReadandcount19+1=20nineteenandoneistwentytwentythirtyfortyfiftysixtyseventyeightyninetyonehundredGame•小小音乐家•打地鼠退出舜德小学信息技术小组舜德小学精品课件Exercise20选出你所听到的数字：1330（A）（B）12（A）（B）１８８０１４４０（A）（B）√√√(A)(B)√12+8=24+6=38+2=42+8=53+7=67+3=71+9=82+8=99+1=20twenty30thirty40forty50fifty60sixty70seventy80eighty90ninety100ahundred整十位数数词20-90构成：个位数词词尾加-tytwenty-twotwenty-threetwenty-fourtwenty-fivetwenty-sixtwenty-seventwenty-eighttwenty-ninetwenty+one=twenty-one★十位数数词构成：整十位数数词后加个位数词，中间用连字符号“-”连接。Sayarhyme英语数词不难记，找出规律就容易。一至十二词各异，一个一个单独记。后面加teen变十几，thirteen，fifteen看仔细。Eighteen只有一个t，两个音节念清晰。二十至九十后加ty，twenty不同重点记。Forty去掉字母u，thirty，fifty更出奇。十位数后个位数，表示数值几十几，按序排列不费力，连字符号莫丢弃。巧学妙记加努力，hundred是你的好成绩！请说出你看到的数字•twenty-five•sixty-seven•forty-three•eighty-nine25674389超人大考验!Doyouwanttobe(成为)superman?Therearethreechallenges(挑战).Haveatry!Standingononefoot.单脚站立!参加比赛的同学，闭上眼睛，单腿离地。其余同学边数数one，two，three…边给他们鼓劲，脚最后一个落地的学生为优胜。第一个挑战:第二个挑战:抢答Howmanyboysarethereintheclassroom?Howmanygirlsarethereintheclassroom?Howmanyteachersarethereintheclassroom?Howmanydays(天)arethereinaweek（一周）?Seven.Howmanyhours(小时)arethereinaday?Twenty-four.Howmanyminutes(分钟)arethereinanhour?Sixty.第三个挑战:1.试着去记住100以内的数。2.预习partA。