Unit4_When_is_Easter_B_Lets_learn_947485.pptVIP

Unit4 When is Easter? B Let’s learn 1st one two three four five first second third fourth fifth 2nd 3rd 4th 5th 1 2 3 4 5 How many balls can you see? twelfth 第十二（的） 12th twelfth twelve When is Grandpa’s birthday? Its on October 12th. 把ve变成f再加th twentieth 第二十（的） 20th twentieth twenty When is Grandma’s birthday? Its on April 20th. 把y变成ie再加th thirtieth 第三十（的） 30th thirtieth thirty When is Dad’s birthday? Its on November 30th. 把y变成ie再加th twenty-third 第二十三（的） 23rd twenty-third twenty-three When is Mum’s birthday? Its on February 23rd. 几十几只变个位数 twenty-first 第二十一（的） 21st twenty-first twenty-one When is your birthday? Its on August 21st. 几十几只变个位数 twelfth twentieth twenty-third thirtieth twenty-first twenty-two twenty-second 基变序，有规律： 一般都是在基数词的末尾加上th 发音|θ| 特殊情况： 1，一、二、三、特殊记，八去t,九去e, ve要用f替，最后th加上去. 2，整十去y变ie,然后再加th. 3，若是遇到几十几，只变个位就可以。 基数词 ：1，2，3…… 序数词：第一，第二，第三…… twenty twentieth 20th thirty thirtieth 30th 第一、二、三特殊记 一般是在基数词的末尾加th 基数词末尾ve 要用f替，再加th 八去t，九去e，再加th 整十基数变序数，末尾y改为ie，再加th 基数词 序数词 序数词缩写 one first 1st two second 2nd three third 3rd four fourth 4th seven seventh 7th five fifth 5th twelve twelfth 12th eight eighth 8th nine ninth 9th What’s missing twelfth twenty-first 22nd 30th thirtieth 12th 20th twenty-third 21st October 24th Sept. 21st July 12th June 23rd Look and write When is your birthday? My birthday is on …. 一、写出下列单词的完全形式 (1)12th (2)20th (3)30th (4)21st (5)23rd (1)twelfth (2)twentieth (3)thirtieth (4)twenty-first (5)twenty-third 1. is, when, birthday, your, brother’s (?) 2. uncle’s, my, in, is, July, birthday (.) 3. is, December 12th, on, birthday, Zhang Peng’s (.) When is your brother’s birthday? My uncle’