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1、数 词,什么是数词？,表示数目多少或顺序多少的词叫数词，数词分为基数词和序数词。表示数目多少的数词叫基数词；表示顺序的数词叫序数词。,基数词,one,two,three,four,five,six,seven,eight,seven,six,three,zero,nine,two,one,eight,four,five,numbers,seven,six,three,zero,nine,two,one,eight,four,five,Numbers are widely used.,Hello ， 86861873 -,Title,Number song,Lets sing a song ！,
2、Lets count!,1-10 one two three four five six seven eight nine ten 11-19 eleven twelve thirteen forteen fifteen sixteen seventeen eighteen nineteen,Lets review,10,20,30,40,50,60,70,80,90,100,ten,thirty,forty,seventy,sixty,One hundred,fifty,ninety,twenty,eighty,Dragon,1-100,1,3,2,4,Look and Read,100 o
3、ne hundred,1,000 one thousand,1,000,000 one million,1,000,000,000 one billion,100 2,000 30,000 400,000 5,000,00060,000,000700,000,000 8,000,000,000 90,000,000,000 100,000,000,000,Can you read them ?,hundred,thousand,million,billion,onehundred onethousand tenthousand onehundredthousand onemillion ten
4、million onehundredmillion onebillion tenbillion onehundredbillion tens/ hundreds/thousands/ millions of,一百 一千 一万 十万 一百万 一千 万 一亿 十亿 一百亿 一千亿 数十/百/千/百万,看谁译得快：,Step1:one hundred and twenty-three billion, Step2:four hundred and fifty-six million, Step3:seven hundred and eighty-nine thousand, Step4:one hu
5、ndred and three,103,789,456,123,625 six hundred and twenty-five 8,961 eight thousand, nine hundred and sixty-one 95,680 ninety-five thousand, six hundred and eighty,Look and Practice,Look and Practice,6,302,876 six million, three hundred and two thousand, eighty hundred and seventy-six 45,690,510,81
6、0 forty-five billion ,six hundred and ninety million, five hundred and ten thousand ,eight hundred and ten,8,3,9,1,What is the largest / smallest 4-digit number?,9831,1389,Lets do a practice!,face to face number to number,one -first,two-second,three-third,four-fourth,five-fifth,six-sixth,seven-seven
7、th,eight-eighth,nine-ninth,ten-tenth,序数词,twenty-twentieth,thirty-thirtieth,forty-fortieth,fifty-fiftieth,sixty-sixtieth,seventy-seventieth,eighty-eightieth,ninety-ninetieth,tenth,ninth,eighth,seventh,sixth,fifth,fourth,third,second,first,ordinal numbers,tenth,ninth,eighth,seventh,sixth,fifth,fourth,
8、third,second,first,一、二、三，特殊记， 加th从4起， 八少“t”，九去“e”， “ve”要用“f”替，(five, twelve) 见“y”变成“i”和“e”，词尾加上“th”， (twenty,thirty,-ninety) 若是遇到几十几，只变个位就可以。,ordinal numbers(序数词 ),Can you write their ordinal numbers?,2,5,44,12,9,18,72,19,101,90,40,14,8,100,1000,December is the _ month of the year. Monday is the _ d
9、ay of the week. English is spoken by most people as their _ language in the USA, Great Britain, Australian, and Canada. The Games of the _ Olympic in 2008 will be held in the city of Beijing. Im hungry. Ive eaten three apples. Would you please give me a_ one? At the beginning of the _ century the worlds population has passed 6 billion. He got off this bus and got on a _ one.,twelfth,second,first,twenty-ninth,fourth,twenty-first,second,Practice:,Thank You !,