序数词ppt课件.ppt

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1、序数词的变化及用法,鸡东三中赵媛媛,基数词的复习,1、三只钢笔2、六个苹果3、12个篮球4、32个西红柿,基数词：描述事物数量的多少的数词。,three pens,six apples,twelve basketballs,thirty-two tomatoes,Numbers 基数词,OneTwo ThreeFourFive SixSevenEightNineTen,ElevenTwelveThirteenFourteenFifteenSixteenSeventeenEighteenNineteen Twenty,Twenty-oneTwenty-twoThirtyFortyFiftySix

2、tySeventyEightyNinety A hundred,认识序数词,数词,序,顺序,表示事物的顺序的数词。 （由基数词变为序数词）,Learn these numbers and find out the rules:一起找规律,1st first2nd second3rd third4th fourth5th 6th7th8th eighth9th ninth10th,fifth,sixth,seventh,tenth,11th eleventh 12th twelfth13th 14th 15th 16th17th18th 19th 20th twentieth,thirteent

3、h,fourteenth,fifteenth,sixteenth,seventeenth,eighteenth,nineteenth,21st twenty-first 22nd twenty-second23rd twenty-third24th 25th 26th27th28th 29th 30th thirtieth31st thirty-first,twenty-fourth,twenty-fifth,twenty-sixth,twenty-seventh,twenty-eighth,twenty-ninth,基变序（巧学妙记）,基变序有规律，结尾加上th,1、一、二、三特殊记，结尾就

4、是t/d/d,第一 first （one)第二 second (two)第三 third (three),2、八去“t” ,九去“e” ,“ve”要用“f”替 后加”th”别忘记,第十二 twelfth （twelve),第八 eighth (eight),第九 ninth（nine),第五 fifth (five),3、整十把“y”变”ie”,后加th莫迟疑,twenty-twentieththirty-thirtiethforty-fortiethfifty-fiftiethsixty-sixtieth,4、若要遇到几十几，只变个位就可以,twenty-one - twenty-first

5、fifty-five - fifty-fiftheighty-two - eighty-secondninety-three - ninety-third,5、序数词表顺序，前有定冠词莫忘记,1.The month of a year is April(四月） A.third B. fourth C. fifth2.The girl is . Today is her birthday. A. twelfth; twelfth B. twelve; twelfth C. twelfth; twelve 3. I have apples, is green. A. six; fourth B. sixth; four C.six ; the fourth,基变序有规律，结尾加上th,1、一、二、三特殊记，结尾就是t/d/d,2、八去“t” ,九去“e” ,“ve”要用“f”替 后加”th”别忘记,3、整十把“y”变”ie”,后加th莫迟疑,4、若要遇到几十几，只变个位就可以,5、序数词表顺序，前有定冠词莫忘记,Goodbye,