五年级UNIT3Blet'slearn.ppt

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1、UNIT 3 MY BIRTHDAY B.Lets Learn 淡水善培小学淡水善培小学 万利香万利香 first second third fourth fifth sixth seventh eighth ninthonetwo threefourfivesixseveneightnineten tenth基数词基数词基数词基数词序数词序数词序数词序数词eleventwelve thirteenfourteenfifteensixteenseventeeneighteenninteentwenty基数词基数词基数词基数词 eleventh twelfth thirteenth fourte

2、enth fifteenth sixteenthseventeenth eighteenth ninteenth twentieth序数词序数词序数词序数词基数词变序数词口诀基数词变序数词口诀基变序，有规律，词尾加上基变序，有规律，词尾加上-thth.一、二、三，特殊例，结尾字母一、二、三，特殊例，结尾字母t,d,dt,d,d(first,second,third(first,second,third)，八去八去t t，九去，九去e e，veve要用要用f f替。替。TyTy将将y y改成改成i i，thth前面有个前面有个e e。若是碰到几十几，前用若是碰到几十几，前用“基基”来后用来后用“

3、序序”。一、二、三，特殊例，结尾字母一、二、三，特殊例，结尾字母 t d d(first,second,third)八去八去t eight+th eighth九去九去enine+th ninthve要用要用f替替five+th fifthtwelve+th twelfthty将将y改成改成i，th前面有个前面有个etwenty+th twentieth若是碰到几十几，若是碰到几十几，前用前用“基基”来后用来后用“序序”twenty-one twenty-firsttwenty-two twenty-secondFirst 1stSecond 2nd Third 3rdFourth 4thFif

4、th 5thSixth 6thSeventh 7th Eighth 8thNinth 9thTenth 10thEleventh 11thTwelfth 12thThirteenth 13thFourteenth 14thFifteenth 15th Sixteenth 16thSeventeenth 17thEighteenth 18thNinteenth 19thTwentieth 20thPair work:When is _ Day?Its _.HOMEWORK：1、背诵、背诵120的序数词的序数词2、抄写、抄写120的序数词的序数词各一行各一行JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecemberfirst 1stsecond 2ndthird 3rdfourth 4thfifth 5thsixth 6thseventh 7theighth 8thninth 9thtenth 10theleventh 11thtwentieth 12th