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1、,Unit 9 Its one hundred.,Try to count the numbers （数一数钟面上的数字）,1 one 2 two 3 three 4 four 5 five 6 six 7 seven 8 eight 9 nine 10 ten 11 eleven 12 twelve,13 thirteen 14 fourteen 15 fifteen 16 sixteen 17 seventeen 18 eighteen 19 nineteen,13-19数词构成方法： 在有关的个位数词词尾加-teen,Lets read,1,2,3,4,5,6,7,8,9,10,11,1
2、2,13,14,15,16,17,18,19,one,two,three,four,five,six,seven,eight,nine,ten,eleven,twelve,thirteen,fourteen,fifteen,sixteen,seventeen,eighteen,nineteen,Read and count,19,+,1,=,20,nineteen,and,one,is,twenty,twenty,thirty,forty,fifty,sixty,seventy,eighty,ninety,one hundred,right,wrong,homework,20 twenty,3
3、0 thirty,40 forty,50 fifty,60 sixty,70 seventy,80 eighty,90 ninety,100 a hundred,整十位数数词20-90构成： 个位数词词尾加-ty,12+8= 24+6=38+2= 42+8=53+7= 67+3=71+9= 82+8=99+1=,Lets read,twenty sixty thirty seventy forty eighty fifty ninety one hundred homework right wrong,Twenty and one is,twenty-one.,20 + 1 =,21,20 +
4、 2 =,22,Twenty and two is,twenty-two.,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。,twenty-two twenty-three twenty-four twenty-five twenty-six twenty-seven twenty-eight twenty-nine,Can you say it in English?,21,32,43,54,65,twenty-one,thirty-two,forty-three,fifty-four,sixty-five,76,87,98,99,100,seventy-six,eighty-seven,ninety-eight,ninety-nine,one hundred,Part A,
