英语四年级上册 四年级上册unit9

1、Unit 9 Its one hundred.,Whats your luncky number?,你的幸运数字是什么？,one hundred,twenty,thirty,forty,fifty,Can you say it in English? 21 32 43 54 65 twenty-one thirty-two forty-three fifty-four sixty-five Look and judge Forty-six and fifty-four is ninety. Twenty-four and ten is thirty-four. Sixteen and sixt

2、y is sixty-six. Thirteen and fifty-four is sixty-six. Look and judge Forty-six and fifty-four is ninety. Twenty-four and ten is thirty-four. Sixteen and sixty is sixty-six. Thirteen and fifty-four is sixty-six. Look and say 20+11=32 13+3=16 34+10=44 37+63=100 50+23=73 54+32=86 12+59=71 98+2=100 76 8

3、7 98 99 100 seventy-six eighty-seven ninety-eight ninety-nine one hundred Look and say 20+11=32 13+3=16 34+10=44 37+63=100 50+23=73 54+32=86 12+59=71 98+2=100,sixty,seventy,eighty,ninety,12+8= 24+6= 38+2= 42+8= 53+7= 67+3= 71+9= 82+8= 99+1=,20 twenty,30 thirty,40 forty,50 fifty,60 sixty,70 seventy,8

4、0 eighty,90 ninety,100 a hundred,整十位数数词20-90构成： 个位数词词尾加-ty,找规律,two twelve three thirteen four fourteen five fifteen sevenseventeen six sixteen eight eighteen nine ninteen,twenty thirty,forty,fifty,sixty,eighty,ninty,表示十几的数字都是以teen结尾，发 /ti:n/ 的音。 表示几十的数字都是以ty结尾，发 /ti/ 的音。,seventy,Say a rhyme,英语数词不难记，

5、 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！,Can you say it in English?,21,32,43,54,65,twenty-one,thirty-two,forty-three,fifty-four,sixty-five,76,87

6、,98,99,100,seventy-six,eighty-seven,ninety-eight,ninety-nine,one hundred,twenty-two twenty-three twenty-four twenty-five twenty-six twenty-seven twenty-eight twenty-nine,twenty+ 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。,25,46,53,91,68,89,35,74,27,92,Practice 请用英语表达下列算式,21+11=32,20+23=43,4

7、1+13=54,56+9=65,65+33=88,Twenty-one and eleven is thirty-two.,Twenty and twenty-three is forty-three.,Forty-one and thirteen is fifty-four.,Fifty-six and nine is sixty-five.,Sixty-five and thirty-three is eighty-eight.,andis,Look and say,20+11=32,13+3=16,34+10=44,37+63=100,50+23=73,54+32=86,12+59=71,98+2=100,Look and judge,Forty-six and fifty-four is ninety.,Twenty-four and ten is thirty-four.,Sixteen and sixty is sixty-six.,Thirteen and fifty-four is sixty-six.,超人大考验!,Do you want to be(成为)superman? There are three challenges(挑战) . Have a try!