基数词与序数词.ppt

基数词与序数词,one two three four five six seven eight nine ten eleven twelve,thirteen fourteen fifteen sixteen seventeen eighteen nineteen,twenty thirty forty fifty sixty seventy eighty ninety,twenty-one twenty-nine thirty-one thirty-nine forty-one forty-nine fifty-one fifty-nine sixty-one sixty-nine seventy-one seventy-nine eighty-one eighty-nine ninety-one ninety-nine,hundred,基数词：表示数目的多少。,看一看 3分钟,说出下列数字,35,90,66,71,20,83,200,103,987,one two three four five,first second third fourth fifth,1st 2nd 3rd 4th 5th,序数词：表示事物的先后顺序，常与the连用。,（说一说 5分钟）,six seven eight nine ten,sixth seventh eighth ninth tenth,6th 7th 8th 9th 10th,基数词：,序数词：,eleven twelve thirteen fourteen fifteen,eleventh twelfth thirteenth fourteenth fifteenth,11th 12th 13th 14th 15th,基数词：,序数词：,sixteen seventeen eighteen nineteen twenty,sixteenth seventeenth eighteenth nineteenth twentieth,16th17th18th19th20th,基数词:,序数词:,twenty-one twenty-two twenty-three thirty forty,twenty-first twenty-second twenty-third thirtieth fortieth,21st 22nd 23rd 30th 40th,基数词: 序数词:,fifty sixty seventy eighty ninety hundred,fiftieth sixtieth seventieth eightieth ninetieth hundredth,50th 60th 70th 80th 90th 100th,基数词 序数词,one hundred and one,one hundred and first,101st,议一议3分钟：序数词的规律,1st first 2nd second 3rd third 4th fourth 5th 6th 7th 8th eighth 9th ninth 10th,fifth,sixth,seventh,tenth,11th eleventh 12th twelfth 13th 14th 15th 16th 17th 18th 19th 20th twentieth,thirteenth,fourteenth,fifteenth,sixteenth,seventeenth,eighteenth,nineteenth,21st twenty-first 22nd twenty-second 23rd twenty-third 24th 25th 26th 27th 28th 29th 30th thirtieth 31st thirty-first,twenty-fourth,twenty-fifth,twenty-sixth,twenty-seventh,twenty-eighth,twenty-ninth,基变序，有规律，词尾加上th. 1 2 3 特殊记，词尾字母t，d，d。 8 少 t， 9 去 e， f 来把 ve 替。 整十变y为ie，后跟 th 莫迟疑。 若是碰到几十几，只变个位就可以。,1st,2nd,3rd,21st,22nd,23rd,基数词变序数词顺口溜,基变序，有规律，词尾加上th。 一二三 特殊记，词尾字母t，d，d one- _，two- _，three- _ 2. 八少t: eight- _ 九去e: nine-_ 3. f 来把ve替, five_;twelve _ 整十变y为ie, 最后加上th。 twenty _，thirty _ 5. 若是碰到第几十几, 只变个位就可以。 twenty one _; twenty- two _.,eighth,ninth,fifth,twelfth,twentieth,thirtieth,twenty-first,twenty-second,first,second,third,1st first 2nd second 3rd third 4th fourth 5th fifth 6th sixth 7th seventh 8th eighth 9th ninth 10th tenth,11th eleventh 12th twelfth 13ththirteenth 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 28th twenty-eighth 29th twenty-ninth 30th thirtieth 31st thirty-first,2a,Listen and repeat.,2a,2b,Listen and circle the numbers you hear in 2a.,2c,Listen again. Match the names, months and dates.,一、默写下列数字的基数词和序数词。 1-10 11-20 21-29 20-90（整十）,当堂检测,1. 13 _ _ 2. 17_ _ _ 3. 20_ _ 4. 31_ _ 5. 84_ _ 6. 55_ _ 7. 79_ _ 8. 103_,thirteen,seventeen,twenty,thirty-one,eighty-four,fifty-five,seventy-nine,快速写出下列数字的基数词、序数词。,thirteenth,seventeenth,twentieth,thirty-first,eighty-fourth,fifty-fifth,s