小數(shù)、分數(shù)、百分數(shù)在英語口語中如何表達？

1. 小數(shù)表示法

小數(shù)點左邊的數(shù)通常按基數(shù)詞讀，若為三位以上的數(shù)，也可按編碼式讀法讀出，即將數(shù)字單個讀出;小數(shù)點右邊的數(shù)通常按編碼式讀法單個讀出。如：

6.86 讀作: six point eight six

14.15 讀作: fourteen point one five

345.456 讀作: three four five point four five six

或讀作:three hundred and forty-five point four five six

(2) 小數(shù)中“0”的讀法

“0”在小數(shù)中通常讀作nought(英)或zero(美)，也可讀作字母o。如：

0.08 讀作:(nought)point nought eight

或讀作:(zero)point zero eight

9.07 讀作: nine point o seven

2. 百分數(shù)表示法

百分數(shù)中的百分號%讀作: percent。如：

6% 讀作: six percent

0.6% 讀作: (nought) point six percent

500% 讀作: five hundred percent

3. 倍數(shù)表示法

倍數(shù)表示方法很多，如：

This room is four times as big as mine.

這個房間是我房間的四倍。

This room is three times larger than that one.

這個房間比那個房間大兩倍。

The output of coal has doubled.

煤的產(chǎn)量增加了一倍。

My aunt is as old again as I am.

我姑姑年齡比我大一倍。

Productivity is increased three fold.

生產(chǎn)效率提高了兩倍。

The volume of the Sun is about 1,300,000 times that of the Earth.

太陽的體積約為地球的1300000倍。

4. 分數(shù)表示法

(1) 較小分數(shù)的一般讀寫方法。如：

1/3 讀作: one-third

2/3 讀作: two-thirds

3/5 讀作: three-fifths

(2) 較復(fù)雜分數(shù)的簡明讀寫方法。如:

22/9 讀作: twenty-two over nine

a/b 讀作: a over b 或 讀作a divided by b

43/97 讀作: forty-three over ninety-seven

(3) 整數(shù)與分數(shù)之間須用and連接。如：

four and a half

nine and two fifths

(4) 分數(shù)用作前置定語時，分母要用單數(shù)形式。注意下列寫法與讀法。如：

1/3英里 讀作: a one-third mile

3/4的多數(shù) 讀作: a three-quarter majority