英语中数字的写法和读法
1. 英语中的基数词 (cardinal numbers) 和序数词 (ordinal numbers)2. 英语中的小数 (decimal)3. 英语中的分数4. 英语中的百分比5. 英语中的金额References
1. 英语中的基数词 (cardinal numbers) 和序数词 (ordinal numbers)
https://blog.csdn.net/chengyq116/article/details/90645253
2. 英语中的小数 (decimal)
decimal /ˈdesɪml/ adj. 小数的；十进制的；十进位的 n. 小数
在英语中，小数点 . 读作 point /pɔɪnt/。
point /pɒɪnt/ n. 要点；尖端；得分；标点 vt. 指向；弄尖；加标点于 vi. 指向；表明
小数点前的数字 (整数部分) 按照基数词的读法。整数部分为 0 时，可以省略不读。小数点读作 point /pɔɪnt/。小数点后的数字 (小数部分) 按照顺序逐个数字读出来。若有数字 0，则读作 O /əʊ/ 或者 zero /'zɪərəʊ/。
小数点后的数字 0，英国人通常读作 O /əʊ/ ，而美国人通常读作 zero /'zɪərəʊ/。
0.05 - zero point zero five / point zero five / zero point O five / point O five 0.2 - zero point two / point two 0.25 - zero point two five / point two five 0.5 - zero point five / point five 0.54 - zero point five four / point five four 0.6529 - zero point six five two nine / point six five two nine 0.73 - zero point seven three / point seven three 1.25 - one point two five 2.95 - two point nine five 3.14159 - three point one four one five nine 10.05 - ten point zero five / ten point O five 10.52 - ten point five two 12.45 - twelve point four five 15.75 - fifteen point seven five 25.67 - twenty-five point six seven 31.06 - thirty-one point zero six / thirty-one point O six 55.28 - fifty-five point two eight 78.12 - seventy-eight point one two 100.01 - one hundred point zero one / one hundred point O one 100.001 - one hundred point zero zero one / one hundred point O O one 204.2007 - two hundred and four point two zero zero seven / two hundred and four point two O O seven 345.456 - three hundred and forty-five point four five six 519.01 - five hundred and nineteen point zero one / five hundred and nineteen point O one 1234.56789 - one thousand two hundred and thirty-four point five six seven eight nine
-7.21 - minus seven point two one -159.721 - minus one hundred fifty-nine point seven two one -200.201 - minus two hundred point two zero one / minus two hundred point two O one
当数字是 1，1.0，-1 或 -1.0 时，修饰的可数名词要用单数。
1m - one meter 1.0 meter - one meter -1.0 meter - minus /ˈmaɪnəs/ one meter
除去 1，1.0，-1 或 -1.0 之外，其余所有小数修饰的可数名词要用复数。
60m - sixty meters 93.64m - ninety-three point six four meters 0.0 meters - zero meters 0.23 meter - zero point two three meters / point two three meters 1.1 meters - one point one meters 48.03 meters - forty-eight point zero three meters / forty-eight point O three meters 82.78 meters - eighty-two point seven eight meters 0 tons - zero tons 0.4 tons - zero point four tons / point four tons 10.25 tons - ten point two five tons 0.36 grams - zero point three six grams / point three six grams 35.04 miles - thirty-five point zero four miles / thirty-five point O four miles 102.67 miles - one hundred and two point six seven miles 1.3 millimetres - one point three millimetres 1.4 liters - one point four liters 2L - two liters 25km/h - twenty-five kilometers per hour 11ft - eleven feet 3tbsp - three tablespoons 1tsp - one teaspoon 40kg - forty kilograms 1.5 years - a year and a half / a year and six months / 18 months
kilogram /ˈkɪləɡræm/ n. 公斤；千克
复数：kilograms /ˈkɪləʊgræmz/
ton /tʌn/ n. 吨；很多，大量
复数：tons /tʌnz/
gram /ɡræm/ n. 克；鹰嘴豆
复数：grams /græmz/
millimetre /ˈmɪlimiːtə(r)/ n. 毫米
复数：millimetres /ˈmɪlɪˌmiːtəz/
liter /ˈliːtə(r)/ n. 公升
复数：liters /ˈliːtəz/
foot /fʊt/ n. 脚，足；英尺；基础，底部；步态，步伐；袜底；袜底 adj. (刹车或泵) 用脚操作的，脚踏的；步行的，步 (兵) 的
复数：feet /fiːt/
A tablespoon (tbsp., Tbsp., Tb., or T.) is a large spoon.
A dessert spoon (dsp.) is a spoon designed specifically for eating dessert.
A teaspoon (tsp.) is a small spoon that can be used to stir a cup of tea or coffee, or as a tool for measuring volume.
3. 英语中的分数
fraction /ˈfrækʃn/ n. 小部分；分数；小数；少量；一点儿
numerator /ˈnjuːməreɪtə(r)/ n. (分数中的) 分子
denominator /dɪˈnɒmɪneɪtə(r)/ n. (分数中的) 分母
分子
分母
：
基数词
序数词
\frac{分子}{分母}：\frac{基数词}{序数词}
分母分子：序数词基数词
整数
分子
分母
：基数词
基数词
序数词
整数\frac{分子}{分母}：基数词\frac{基数词}{序数词}
整数分母分子：基数词序数词基数词
英语中分数的读法是，先依照基数词来读出分子，再依照序数词来读出分母。如果分子大于 1，则分母序数词是复数。这种读法可以用在所有分数上，但除了数字 2。当分母为 2 时，则读作 half /hɑːf/；如果其分子大于 1，分母则变成复数 halves /hɑːvz/。
4/5 meter - four-fifths meter
3
3
5
3\frac{3}{5}
353 kilograms - three and three fifths kilograms
1/2 使用 one-half / a half，而不是 one-second / a second。因为 second 还表示秒，为了避免沟通时产生误会，通常使用 half 代替。
1/3 - one-third / a third 1/7 - one-seventh / a seventh 1/6 - one-sixth 1/8 - one-eighth / an eighth 1/4 - one-quarter / a quarter / one-fourth / a fourth 3/4 - three-fourths / three-quarters 2/3 - two-thirds 3/4 - three-fourths 3/5 - three-fifths 5/6 - five-sixths 5/12 - five-twelfths 1/2 - one-half / a half 3/2 - three-halves
9
3
4
9\frac{3}{4}
943 - nine and three-quarters
2
1
3
2\frac{1}{3}
231 - two and one-third
当分子和分母都非常大时，可直接读“分子 (基数词) + over + 分母 (基数词)”。注意分子、分母全用基数词表示。
51/80 - fifty-one over eighty 77/232 - seventy-seven over two hundred and thirty-two 22/9 - twenty-two over nine a/b - a over b 43/97 - forty-three over ninety-seven 327/465 - three hundred and twenty-seven over four hundred and sixty-five 86/98 - eighty-six over ninety-eight
quarter /ˈkwɔːtə(r)/
n. 四分之一；地区；季度；一刻钟；两角五分；(篮球) 节
vi. 住宿；驻扎
vt. 将...四等分；供某人住宿
num. 四分之一
“分子 (基数词) + in + 分母 (基数词)” 表示分数：
1/3 - one in three 5/6 - five in six
“分子 (基数词) + of every + 分母 (基数词)” / “分子 (基数词) + out of every + 分母 (基数词)” 表示分数：
1/7 - one of every seven 5/9 - five out of every nine
4. 英语中的百分比
在英语中，百分号 % 读作 percent /pəˈsɛnt/。
12.5% - twelve point five percent 5% - five percent 11.3% - eleven point three percent 25% - twenty-five percent 36.25% - thirty-six point two five percent 45% - forty-five percent 99.5% - ninety-nine point five percent 100% - one hundred percent 400% - four hundred percent
percent /pəˈsɛnt/ n. 百分比，百分之...；部分；利率为...厘的债券 adj. 百分之...的，每一百中有...的；按百分之...支付利息的 adv. 以百分之...地，每一百中有...地
percentage /pəˈsentɪdʒ/ n. 百分比；百分率；提成；利润的分成
5. 英语中的金额
对于整数金额，首先依照基数词读出全部数字，再加上货币的名称。如果金额包含小数，则在依照基数词读出整数部分后，再将小数点后的数字依照基数词整数方式读出，分别加上对应的货币单位。
注意，金额大于 1 时，使用复数单位。
$1 - one dollar $25 - twenty-five dollars $1.35 - a dollar thirty-five cents $4.05 - four dollars five cents $43.25 - forty-three dollars twenty-five cents €52 - fifty-two euros €12.66 - twelve euros sixty-six ₤140 - one hundred and forty pounds ₤10.50 - ten pounds fifty ₤1 - one pound ₤2 - two pounds 1.50 pounds - one pound fifty ₤2.50 - two pounds fifty ₤4.45 - four pounds forty-five ₤5.50 - five pounds fifty
Prefix or suffix
In the United States, Mexico, Australia, Argentina, Chile, Colombia, New Zealand, Hong Kong, Pacific Island nations, and English-speaking Canada, the sign is written before the number ($5), even though the word is written or spoken after it (five dollars).
In French-speaking Canada, exceptionally, the dollar symbol usually appears after the number, e.g., 5$. (The cent symbol is written after the number in most countries that use it, e.g., 5¢.)
dollar /ˈdɒlə(r)/ n. 美元
复数：dollars /ˈdɒləz/
cent /sent/ n. 分；分币
复数：cents /sɛnts/
euro /ˈjʊərəʊ/ n. 欧元
复数：euros /ˈjʊərəʊz/
pound /paʊnd/ n. 磅 (重量单位，合 0.454 千克)；镑 (英国以外某些国家的货币单位)；英镑 (英国货币单位，1 英镑 = 100 便士)；违章停车车辆扣留场；流浪狗收留所
复数：pounds /paʊndz/
penny /ˈpeni/ n. 分；便士
复数：pence /pens/
References
[1] Yongqiang Cheng, https://yongqiang.blog.csdn.net/ [2] 英语中的数字, https://www.ef.com.cn/english-references/english-grammar/numbers-english/ [3] 场景英语 Scenes English, https://www.youtube.com/@1speaking_com