1)倍數(shù)表示法
a. 主語+謂語+倍數(shù)(或分?jǐn)?shù))+ as + adj. + as。例如
I have three times as many as you. 我有你三倍那么多。
b. 主語+謂語+倍數(shù)(分?jǐn)?shù))+ the size (amount,length…) of…。例如:
The earth is 49 times the size of the moon. 地球是月球的49倍。
c. 主語+謂語+倍數(shù)(分?jǐn)?shù))+ 形容詞(副詞)比較級(jí)+ than…。例如:
The grain output is 8 percent higher this year than that of last year. 今年比去年糧食產(chǎn)量增加8%。
d. 還可以用by+倍數(shù),表示增加多少倍。例如:
The production of grain has been increased by four times this year. 今年糧食產(chǎn)量增加了4倍。
2)分?jǐn)?shù)表示法的構(gòu)成:基數(shù)詞代表分子,序數(shù)詞代表分母。分子大于1時(shí),分子的序數(shù)詞用單數(shù),分母序數(shù)詞用復(fù)數(shù)。例如:
1/3 one-third; 3/37 three and three-sevenths.