基数词变序数词ppt课件.ppt
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1、When is your birthday?,基数词变序数词口诀,一、二、三,单独记,结尾是t,d,d;th从四起;八去t,九去e ; ve要用f替;整十基数变序数,先把ty变成tie;要是遇到几十几,前用基数后用序。,基数词 序数词 基数词 序数词 1 one 第一 first 2 two 第二 second3 three 第三 third 4 four 第四 fourth5 five 第五 fifth 6 six 第六 sixth7 seven 第七 seventh 8 eight 第八 eighth9 nine 第九 ninth 10 ten 第十 tenth11 eleven 第十一
2、eleventh 12 twelve 第十二 twelfth20 twenty 第二十 twentie21 twenty-one 第二十一 twenty-first 22 twenty-two 第二十二 twenty-second23 twenty-three 第二十三 twenty-third 99 ninety-nine 第九十九 ninety-ninth 100 hundred 第一百 hundredth,序数词,firstsecondthirdfourthfifthsixthseventheighthninthtenth,twelfth,thirteenth,fourteenth,ei
3、ghteenth,nineteenth,twentieth,twelve,thirteen,fourteen,eighteen,nineteen,twenty,th结尾从4加起,ve要用f替,121314181920,onetwothreefourfivesixseveneightnineten,9去e,ty变成tie,ve要用f替,8去t,123单独记,30405060708090,fifty,forty,thirty,sixty,seventy,eighty,ninety,thirtieth,fortieth,fiftieth,sixtieth,seventieth,eightieth,n
4、inetieth,ty变成tie,整十的,基变序有规律, 一二三单独记,th结尾从4加起,八去t,九去e,ve要用f替,ty要用tie,若是遇到几十几,只变个位就可以,序数前要加the,我们一定要记牢。,firstsecondthirdfourthfiftheighthninth,onetwothreefourfiveeightnine,twentieth,twenty,forty-fifth,forty-five,1st first 2nd second 3rd third 4th fourth 5th fifth 6th sixth 7th seventh 8th eighth 9th n
5、inth 10th tenth,11th eleventh 12th twelfth 13th thirteenth 14th fourteenth 15th fifteenth 16th sixteenth 17th seventeenth 18th eighteenth 19th nineteenth 20th twentieth,21st twenty-first 22nd twenty-second 23rd twenty-third 24th twenty-fourth 25th twenty-fifth 26th twenty-sixth 27th twenty-seventh 2
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