Let’s sing Try to count the numbersTry to count the numbers (数一数钟面上的数字)1 one 2 two 3 three 4 four5 five 6 six 7 seven 8 eight 9 nine 10 ten11 eleven 12 twelve13 thirteen 14 fourteen 15 fifteen 16 sixteen17 seventeen 18 eighteen19 nineteen★13-19 数词构成方法:在有关的个位数词词尾加 -teenLet’s read 1 2 3 4 5678910 11 12 13 1415 16 17 18 19 onetwothree four five sixseveneight nine ten eleven twelve thirteen fourteen fifteen sixteenseventeen eighteen nineteenRead and count19 + 1=20nineteenand oneistwentyplustwentythirtyfortyfiftysixtyseventyeightyninetyone hundredrightwronghomework12+8= 24+6=38+2= 42+8=53+7= 67+3=71+9= 82+8=99+1=20 twenty30 thirty40 forty50 fifty60 sixty70 seventy80 eighty90 ninety100 a hundred整十位数数词 20-90 构成:个位数词词尾加 -tytwenty-two twenty-three twenty-four twenty-fivetwenty-six twenty-seventwent