序数词课件ppt.ppt

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1、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 penssix applestwelve basketballsthirty-two tomatoesNumbers 基数词基数词OneTwo ThreeFourFive SixSevenEightNineTen ElevenTwelveThirteenFourteenFifteenSixteenSeventeenEighteenNineteen Twenty Twenty-oneTwenty-twoThirtyFortyFiftySixtySeventyEightyNinety A hund

2、red 数词数词序序顺序顺序表示事物的顺序的数词。表示事物的顺序的数词。 （由（由基数词基数词变为变为序数词序数词）Learn these numbers and find out the rules:一起找规律一起找规律1st first2nd second3rd third4th fourth5th 6th7th8th eighth9th ninth10th fifthsixthseventhtenth11th eleventh 12th twelfth13th 14th 15th 16th17th18th 19th 20th twentieththirteenthfourteenthfi

3、fteenthsixteenthseventeentheighteenthnineteenth21st twenty-first 22nd twenty-second23rd twenty-third24th 25th 26th27th28th 29th 30th thirtieth31st thirty-firsttwenty-fourthtwenty-fifthtwenty-sixthtwenty-seventhtwenty-eighthtwenty-ninth基变序有规律，结尾加上基变序有规律，结尾加上thth1 1、一、二、三特殊记，结尾就是、一、二、三特殊记，结尾就是t/d/dt/d

4、/d第一第一 first （one)第二第二 second (two)第三第三 third (three)2 2、八去、八去“t” , ,九去九去“e” , ,“ve”要用要用“f”替替 后加后加”th”别忘记别忘记第十二第十二 twelfth （twelve) 第八第八 eighth (eight)第九第九 ninth（nine)第五第五 fifth (five) 3 3、整十把、整十把“y”变变”ie”,后加后加th莫迟疑莫迟疑twenty-twentieththirty-thirtiethforty-fortiethfifty-fiftiethsixty-sixtieth4 4、若要遇到

5、几十几，只变、若要遇到几十几，只变个位个位就可以就可以twenty-one - twenty-firstfifty-five - fifty-fiftheighty-two - eighty-secondninety-three - ninety-third5 5、序数词表顺序，前有、序数词表顺序，前有定冠词定冠词莫忘记莫忘记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; twelf

6、th 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，结尾加上基变序有规律，结尾加上thth1 1、一、二、三特殊记，结尾就是、一、二、三特殊记，结尾就是t/d/dt/d/d2 2、八去、八去“t” , ,九去九去“e” , ,“ve”要用要用“f”替替 后加后加”th”别忘记别忘记3 3、整十把、整十把“y”变变”ie”,后加后加th莫迟疑莫迟疑4 4、若要遇到几十几，只变、若要遇到几十几，只变个位个位就可以就可以5 5、序数词表顺序，前有、序数词表顺序，前有定冠词定冠词莫忘记莫忘记