英语中各种数字的读法(1)年号的读法：2005←→two thousand and five1999←→nineteen ninety-nine or nineteen hundred (and) ninety-nine2008年7月15日July 15th,2008读法：2002 - Two-thousand and two 1991 - Nineteen-ninty-one 2020 - Two-thousand and twenty1900年读作nineteen hundred531BC（公元前513年）读作five three one BC（或five hundred and thirty-one BC）第三个数字为“零”（其他数字不是“零”）的年份的读法应当将该“零”读为O（字母O）。
例如：1809年读作eighteen O nine4）关于千年的一些读法。
2000年读作two thousand2008年读作two thousand and eight（或twenty O eight）1008年读作one thousand and eight（或ten O eight）(2)电话号码、货币的读法：1023←→one o two three1227←→one double two (or two two) even4.25(dollar)←→four dollars (and) twenty-five (cents)(3)小数点的读法：13.91←→thirteen de cimal (point) nineone0.23←→nought de cimal two three(4)算术式的读法：2+3=5 Two plus three is (equals, isequal to) five. Plus 是介词5-3=2 Five minus three is equal to two. Minus 是介词3×2=6 Three times two is six. or Three by two are six. Times是介词9÷3=3 Nine divided bythreemakesthree.1. “加”用plus，and或add表示；“等于”用is，make，equal等词表示。
2+3=? How much is two plus three?2+3=5Two plus three is five.Two and three is equal to five.Two and three make five.Two added to three equals five.If we add two to/and three, we get five.2. “减”用minus或take from表示10－6＝?How much is ten minus six?10-6=4Ten minus six is four.Take six from ten and the remainder is four.Six (taken) from ten is four.3. “乘”用time 或multiply表示3x4＝? How much is three times four?3x4=12Three times four is/are twelve.Multiply three by four，we get twelve.Three multiplied by four makes twelve.4. “除”用divided by的过去分词形式表示16÷4=? How much is sixteen divided by four?16÷4＝4Sixteen divided by four is four.Sixteen divided by four equals/gives/makes four1. 分子用基数词，分母用序数词。
(1) 分子为“1”，分母用单数。
1/2 a half1/3 one third 或a third1/4 one quarter 或a quarter(2) 分子大于“1”，分母用复数。
3/4 three fourths 或three quarters24/25 twenty-four twenty-fifths2. 带分数用and 连接3 1/4 three and one fourth 或three and one quarter1 1/2 one and a half1 1/4 one and a quarter3. 百分数表示法: 百分数用基数＋percent表示50％fifty percent 百分之五十3％three percent百分之三0.12％zero point one two percent 百分之零点一二4. 当分数后面接名词时，如果分数的值小于1，名词用单数；大于1时名词用复数。
4/5 meter 五分之四米5/6 inch 六分之五英寸1 1/2 hours 一个半小时（读作one and a half hours）2 3/4 meters 二又四分之三米（读作two and three-fourths meters）1. 分子用基数词，分母用序数词。
(1) 分子为“1”，分母用单数。
1/2 a half1/3 one third 或a third1/4 one quarter 或a quarter(2) 分子大于“1”，分母用复数。
3/4 three fourths 或three quarters24/25 twenty-four twenty-fifths2. 带分数用and 连接3 1/4 three and one fourth 或three and one quarter1 1/2 one and a half1 1/4 one and a quarter3. 百分数表示法: 百分数用基数＋percent表示50％fifty percent 百分之五十3％three percent百分之三0.12％zero point one two percent 百分之零点一二4. 当分数后面接名词时，如果分数的值小于1，名词用单数；大于1时名词用复数。
4/5 meter 五分之四米5/6 inch 六分之五英寸1 1/2 hours 一个半小时（读作one and a half hours）2 3/4 meters 二又四分之三米（读作two and three-fourths meters）1. 分子用基数词，分母用序数词。
(1) 分子为“1”，分母用单数。
1/2 a half1/3 one third 或a third1/4 one quarter 或a quarter(2) 分子大于“1”，分母用复数。
3/4 three fourths 或three quarters24/25 twenty-four twenty-fifths2. 带分数用and 连接3 1/4 three and one fourth 或three and one quarter1 1/2 one and a half1 1/4 one and a quarter3. 百分数表示法: 百分数用基数＋percent表示50％fifty percent 百分之五十3％three percent百分之三0.12％zero point one two percent 百分之零点一二4. 当分数后面接名词时，如果分数的值小于1，名词用单数；大于1时名词用复数。
4/5 meter 五分之四米5/6 inch 六分之五英寸1 1/2 hours 一个半小时（读作one and a half hours）2 3/4 meters 二又四分之三米（读作two and three-fourths meters）英语中，倍数的表达有许多细微的区别。
这里只介绍倍数的一般表达方法。
1. 表示“几倍大小（长短；数量）”，由“倍数+ the size（length，amount……）”结构组成。
例如：The earth is forth-nine times the size of the moon. 地球是月亮的49倍大。
2. 表示“……比……大几倍”，由“倍数+形容词（副词）比较级”结构组成。
例如：This box is three times bigger than that one. 这个盒子比那个盒子大三倍。
The grain output is 8 percent higher this year than that of last year. 今年比去年粮食产量增加8%。
3. 表示“……是……倍”，由“倍数+ as +形容词+ as +”结构组成。
例如：Our factory is twice as big as theirs. 我们的工厂是他们的三倍。
I have three times as many as you. 我有你三倍那么多。
[注] 一倍用once，两倍用twice。
4、还可以用by+倍数，表示增加多少倍。
The production of grain has been increased by four times this year. 今年粮食产量增加了4倍。
英语中，倍数的表达有许多细微的区别。
这里只介绍倍数的一般表达方法。
1. 表示“几倍大小（长短；数量）”，由“倍数+ the size（length，amount……）”结构组成。
例如：The earth is forty-nine times the size of the moon. 地球是月亮的49倍大。
2. 表示“……比……大几倍”，由“倍数+形容词（副词）比较级”结构组成。
例如：This box is three times bigger than that one. 这个盒子比那个盒子大三倍。
The grain output is 8 percent higher this year than that of last year. 今年比去年粮食产量增加8%。
3. 表示“……是……倍”，由“倍数+ as +形容词+ as +”结构组成。
例如：Our factory is twice as big as theirs. 我们的工厂是他们的三倍。
I have three times as many as you. 我有你三倍那么多。
[注] 一倍用once，两倍用twice。
4、还可以用by+倍数，表示增加多少倍。