[高中]全新語(yǔ)法:數(shù)詞的分類 三、分?jǐn)?shù)

三、分?jǐn)?shù)

1.分?jǐn)?shù)的形式

（1）分子用基數(shù)詞，分母用序數(shù)詞；分子大于一時(shí)分母用復(fù)數(shù)。

1/4 a/one fourth　　　　　　　　　1/6 a/one sixth

2/3 two thirds　　　　　　　　　　3/5 three fifths

4/5 four fifths　　　　 　　　　　3/7 three sevenths

four and three fifths 2 two and three fourths

（2）特殊分?jǐn)?shù)形式

1/2 a/one half　　　　　　　　　　1/4 a/one quarter

3/4 three quarters　　　　　　　　1/5 one in five

3/5 three out of five

2.百分?jǐn)?shù)和小數(shù)

（1）百分?jǐn)?shù)用percent或per cent表示，即“%”。

The price has been reduced by 20 percent （or 20%）since May.

自五月以來(lái)價(jià)格降低了百分之二十。

The number of visiting patients is 30 percent （or 30%）less than the same time last year.

就診的患者人數(shù)較去年同期下降了百分之三十。

（2）小數(shù)用point表示“ .”。

6.54 six point five four

0.618 zero/o point six one eight

762.376 seven hundred and sixty-two point three seven six