下载文档原格式
英语中数词主要分为基数词和序数词两类。
一、基数词：表示数目的词叫基数词。
其形式如下：(1）．从1——10 one,two，three，four，five，six，seven,eight，nine，ten．（2）．从11——19 eleven，twelve, thirteen，fourteen，fifteen，sixteen，seventeen,eighteen，nineteen．这里除eleven, twelve，thirteen，fifteen，eighteen为特殊形式外，fourteen，sixteen,seventeen，nineteen都是由其个位数形式后添加后缀—teen构成. （3)．从21——99 整数几十中除twenty,thirty, forty，fifty,eighty为特殊形式外，sixty，seventy，ninety都是其个位数形式后添加后缀-ty构成.表示几十几时，在几十和个位基数词形式之间添加连字符“—”比如:22 twenty—two 78 seventy-eight二、序数词：表示顺序的数词称为序数词。
其主要形式：(1)从第一至第十二: one- first two- second three- third four—fourth five- fifth six- sixthseven—seventh eight-eighth nine-ninth ten—tenth eleven- eleventh twelve—twelfth 大多的序数词都是由其相对应的基数词后面添加“th"构成。
(2）从第二十至第九十九整数第几十的形式由其对应的基数词改变结尾字母y为ie，再加“th"构成。
twenty—twentieth thirty--thirtieth表示第几十几时，用几十的基数词形式加上连字符“—”和个位序数词形式一起表示。
比如：thirty—first 第三十一fifty-sixth 第五十六seventy-third 第七十三ninety-ninth 第九十九三、每个基数词有它相对应的序数词. 序数词的用法:1.用英语说楼层的时候要用序数词，比如: 一楼the firstfloor 二楼the secondfloor2.用英语书几月几日中的几日时用序数词，比如: 4月5日Apr。
英语1到100的序数词和基数词基数词：1 - one, 2 - two, 3 - three, 4 - four, 5 - five,6 - six,7 - seven,8 - eight,9 - nine, 10 - ten, 11 - eleven, 12 - twelve, 13 - thirteen, 14 - fourteen, 15 - fifteen, 16 - sixteen, 17 - seventeen, 18 - eighteen, 19 - nineteen, 20 - twenty, 21 - twenty-one, 22 - twenty-two, 23 - twenty-three, 24 - twenty-four, 25 - twenty-five, 26 -twenty-six, 27 - twenty-seven, 28 - twenty-eight, 29 -twenty-nine, 30 - thirty, 31 - thirty-one, 32 - thirty-two,33 - thirty-three, 34 - thirty-four, 35 - thirty-five, 36 - thirty-six, 37 - thirty-seven, 38 - thirty-eight, 39 -thirty-nine, 40 - forty, 41 - forty-one, 42 - forty-two, 43 - forty-three, 44 - forty-four, 45 - forty-five, 46 - forty-six, 47 - forty-seven, 48 - forty-eight, 49 - forty-nine, 50 -fifty, 51 - fifty-one, 52 - fifty-two, 53 - fifty-three, 54 - fifty-four, 55 - fifty-five, 56 - fifty-six, 57 - fifty-seven, 58 - fifty-eight, 59 - fifty-nine, 60 - sixty, 61 - sixty-one,62 - sixty-two, 63 - sixty-three, 64 - sixty-four, 65 -sixty-five, 66 - sixty-six, 67 - sixty-seven, 68 - sixty-eight, 69 - sixty-nine, 70 - seventy, 71 - seventy-one, 72 - seventy-two, 73 - seventy-three, 74 - seventy-four, 75 - seventy-five, 76 - seventy-six, 77 - seventy-seven, 78 - seventy-eight, 79 - seventy-nine, 80 - eighty, 81 - eighty-one, 82 - eighty-two, 83 - eighty-three, 84 - eighty-four, 85 - eighty-five, 86 - eighty-six, 87 - eighty-seven, 88 - eighty-eight, 89 - eighty-nine, 90 - ninety, 91 - ninety-one, 92 - ninety-two, 93 - ninety-three, 94 - ninety-four, 95 - ninety-five, 96 - ninety-six, 97 - ninety-seven, 98 - ninety-eight, 99 - ninety-nine, 100 - one hundred.序数词：1 - first, 2 - second, 3 - third, 4 - fourth, 5 - fifth, 6 - sixth, 7 - seventh, 8 - eighth, 9 - ninth, 10 - tenth, 11 - eleventh, 12 - twelfth, 13 - thirteenth, 14 - fourteenth, 15 - fifteenth, 16 - sixteenth, 17 - seventeenth, 18 - eighteenth, 19 - nineteenth, 20 - twentieth, 21 -twenty-first, 22 - twenty-second, 23 - twenty-third, 24 -twenty-fourth, 25 - twenty-fifth, 26 - twenty-sixth, 27 - twenty-seventh, 28 - twenty-eighth, 29 - twenty-ninth, 30 - thirtieth, 31 - thirty-first, 32 - thirty-second, 33 -thirty-third, 34 - thirty-fourth, 35 - thirty-fifth, 36 -thirty-sixth, 37 - thirty-seventh, 38 - thirty-eighth, 39 - thirty-ninth, 40 - fortieth, 41 - forty-first, 42 - forty-second, 43 - forty-third, 44 - forty-fourth, 45 - forty-fifth, 46 - forty-sixth, 47 - forty-seventh, 48 - forty-eighth, 49 - forty-ninth, 50 - fiftieth, 51 - fifty-first, 52 - fifty-second, 53 - fifty-third, 54 - fifty-fourth, 55 - fifty-fifth, 56 - fifty-sixth, 57 - fifty-seventh, 58 - fifty-eighth, 59 - fifty-ninth, 60 - sixtieth, 61 - sixty-first, 62 - sixty-second, 63 - sixty-third, 64 - sixty-fourth, 65 - sixty-fifth, 66 - sixty-sixth, 67 - sixty-seventh, 68 - sixty-eighth, 69 - sixty-ninth, 70 - seventieth, 71 - seventy-first, 72 -seventy-second, 73 - seventy-third, 74 - seventy-fourth, 75 - seventy-fifth, 76 - seventy-sixth, 77 - seventy-seventh, 78 - seventy-eighth, 79 - seventy-ninth, 80 - eightieth, 81 -eighty-first, 82 - eighty-second, 83 - eighty-third, 84 - eighty-fourth, 85 - eighty-fifth, 86 - eighty-sixth, 87 - eighty-seventh, 88 - eighty-eighth, 89 - eighty-ninth, 90 - ninetieth, 91 - ninety-first, 92 - ninety-second, 93 - ninety-third, 94 - ninety-fourth, 95 - ninety-fifth, 96 - ninety-sixth, 97 - ninety-seventh, 98 - ninety-eighth, 99 - ninety-ninth, 100 - one hundredth.。
英语中的数词包括基数词和序数词两大类，它们的用法非常复杂，为了便于同学们系统地复习数词，现就小学阶段数词的主要内容作以下归纳。
一、基本构成(一)基数词——从1数到n1.1—12的基数词是独立的单词，即：one，two，three，four，five，six，seven，eight，nine，ten，eleven，twelve。
2.13—19的基数词以-teen结尾。
如：fourteen，seventeen等，但13，15，18较特殊，13—thirteen 15—fifteen 18—eighteen。
3.20—90的整十位均以-ty结尾。
如：sixty，ninety，但20，30，40，50，80较特殊，20—twenty，30—thirty，40—forty ，50—fifty ，80—eighty。
4.十位数与个位数之间要加连字符号“-”，如：28—twenty-eight，96—ninety-six。
5.百位和十位(若无十位则和个位)之间加and，如：148—one hundred and forty-eight ，406—four hundred and six。
6.hundred(百)，thousand(千)，million(百万)，billion(十亿)等前面即使有具体的数词，也不能在它们的后面加s。
如：600—six hundred，8百万—eight million。
7.1000以上的数字，从后往前数每三位加一个逗号“，”第一个逗号前为千(thousand)，第二个逗号前为百万(million)，第三个逗号前为billion(十亿)。
英语中无“万”这个词，我们可以用“几十个千(thousand)”表示几万，“几百个千(th ousand)”表示“几十万”。
如：2，510＝two thousand five hundred and ten；84，296＝eighty-four thousand two hundred and ninety-six；274，350＝two hundred and seventy-four thousand three hundred and fifty。
小学英语语法：基数词和序数词一.基数词（1）1-12 独立成词one two three four five six seven eight nineten eleven twelve（2）1-19 由3-9＋teen构成14-fourteen 16-sixteen 17-seventeen 19-nineteen特殊拼写：13-thirteen 15-fifteen 18-eightteen（3）20-90整十位数以-ty结尾20-twenty 30-thirty 40-forty 50-fifty 80eighty60-sixty 70-seventy 90-ninety（4）21-99 两位数十位与各位之间有“-”21 twenty-one 55 fifty-five 99 ninety-nine（5）101-999 三位数百位于十位/各位之间加and101 one hundred and one840 eight hundred and forty693 six hundred and ninety-three二.序数词（1）1-3 first second third（2）4-19 相应基数＋th,fourth,sixth,eleventh特殊拼写：fifth,eighth,ninth,twelfth（3）20-90 y变成ie＋th 如twentieth thirtieth（4）21-99 只把各位的基数词变成序数词如twenty-first（5）序数词缩写——数字＋最后字母如1st 2nd 3rd 4th（序数词构成规律）基变序有规律一、二、三特殊记面目全非要注意加th从4起八少“t”九去“e”“ve”要用“f”替（five,twelve）见“y”变成“i”和“e”词尾再加“th”（twenty,thirty,……ninety）若是遇到几十个只变各位就可以序数词缩写记清楚数字后跟两个字母8thone is never too old to learn！（活到老，学到老！）。
点击此处添加正文，文字是您思想的提炼，请尽量言简意赅的阐述观点。
C O N T E N TS目录基数词序数词l数词数词的表示数目多少或顺序先后的词。
数词分为基数词和序数词。
什么是基数词表示数目多少的数词叫作基数词。
2. 13-19的基数词：以-teen 结尾thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen1. 1-12的基数词one, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve3. 20-90的基数词：整十数词以-ty 结尾twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety什么是基数词表示数目多少的数词叫作基数词。
5. 100-999的整百数词：由1-9加hundred 构成a (one) hundred, three hundred, six hundred4. 其他两位数字的表示法：整十数+个位数twenty-one, fifty-seven, ninety-nine6. 其他三位数字的表示方法：整百数+整十数+个位数101：one hundred and one210: two hundred adn ten什么是基数词表示数目多少的数词叫作基数词。
7. 1000以上的大数字1000：a (one) thousand4000: four thousand1,000,000: a (one) million6,000,000: six million1,000,000,000: a billion2,000,000,000: two billion1. 1-3的序数词：first, second, third2. 4-19的序数词：基数词+thfourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, twelveth, thirteenth, fourteenth, fifteenth,sixteenth, seventeenth, eighteenth, nineteenth3. 整十数和100的序数词把整十数基数词的词尾“y”改写成“i”，然后加-ethtwentieth, thirtieth, fortieth, fiftieth, sixtieth, seventieth, eightieth, ninetieth“百”的序数词是在hundred后直接加-th。
