新版五年级下册第四单元B部分Unit__4_Part_B_.pptVIP

eleven twelve twenty twenty-one twenty-three thirty Unit 4 When is Easter 绿色圃中小学教育网http://www.L 绿色圃中学资源网http://cz.L 绿色圃中小学教育网http://www.L 绿色圃中学资源网http://cz.L second first fourth June 4th February 2nd fifth August 1st third 3rd 2nd Flash game 基数词变序数词规则 基变序，很容易，结尾加上“th”。 一二三，特殊记，结尾各是t,d,d. 八去t, 九去e, f来把ve替。 y改为“ie”,结尾仍有”th”. 若是遇到几十几，只变个位就可以。 one first two second three third four fourth five fifth six sixth seven seventh eight eighth nine ninth ten tenth When is your birthday? It’s on August 21st. 21st twenty-one February 21st Dec. 21st twenty-first 12th twelve April 12th Sept. 12th January 12th twelfth When is grandpa’s birthday? It’s on October 12th. 20th twenty August 20th March 20th Oct. 20th twentieth When is grandma’s birthday? It’s on April 20th. 30th thirty July 30th March 30th June 30th thirtieth When is Dad’s birthday? It’s on November 30th. 23rd twenty-three April 23rd May 23rd Nov. 23rd twenty-third When is Mum’s birthday? It’s on February 23rd. 10月12日 4月20日 11月30日 2月23日 8月21日 爷爷的生日 奶奶的生日 爸爸的生日 …..’s 谁的 妈妈的生日 我的生日 eleventh twentieth twenty-first twenty-third thirtieth twelfth 第20-50 基数词 序数词 twenty thirty forty fifty fiftieth fortieth thirtieth twentieth 改y 为i ,加eth 缩写 20th 30th 40th 50th twenty-third twelfth twenty-first thirtieth twentieth Round 1 twenty-third twelfth twenty-first thirtieth twentieth Round 2 23rd 12th 21st 30th 20th Round 3 基变序，有规律： 1、2、3特殊例， 结尾各是t, d, d; th, 4加起，8加h, 9去e; y结尾改ie, ve要用f替，再加th莫迟疑； 若是遇到几十几，只变个位就可以。 1st 31st When is _________________? It’s on _________(this year) Chen Jie: When is your birthday? Mike: Cool! What will you do for your mum? Chen Jie: Thants ________s birthday, too! Mike: My birthday is on__________. Chen Jie