UNIT 6 I HAVE FIFTY MARKERS Lesson 21 课件3

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1、UNIT6IHAVEFIFTYMARKERSLesson21Trytocountthenumbers（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’sread12345678910111213

2、141516171819onetwothreefourfivesixseveneightnineteneleventwelvethirteenfourteenfifteensixteenseventeeneighteennineteenReadandcount19+1=20nineteenplusoneistwentytwentythirtyfortyfiftysixtyseventyeightyninetyonehundred12+8=24+6=38+2=42+8=53+7=67+3=71+9=

3、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

4、。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！Homework:1.试着去记住100以内的数。2.预习下一单元。Goodbye!