英语表示倍数增减或倍数对比的句型多种多样，其中有 一些(如下文中的句型②、⑤、⑥、⑧、(12) 等， 见圈码)很容易译错——其主要原因在于：英汉两语在 {}O~tf_
表述或对比倍数方面存在着语言与思维差异。现将常 用的英语倍数句型及其正确译法归纳如下： S
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倍数增加 .u-a+ac<
一、 A is n times as great(long，much，…)as B.(①)A is n times greater (longer， m1$tf
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more，…)than B.(②)A is n times the size (length， amount，…)of Oa|c ?|+
B.(③)以上三句都应译为;A的大小(长度，数量，……)是B的n倍[或A比B大(长，多，……)n-1倍]. [doEArwn
Eg. This book is three times as long as (three times longer than，three 2]!@)fio`
times the length of )that one. a"Qf
这本书的篇幅是那本书的3倍(即长两倍)。 l;-Ml{}|0
注：当相比的对象B很明显时，than(as，of)B常被省去。 S?~0)EXj(
二、increase to n times(④) JEjxY&
increase n times/n-fold(⑤) -TUJ"ep]QJ
increase by n times(⑥) e~)[I! n
increase by a factor of n(⑦) K_i|cYGV
以上四式均应译为：增加到n倍(或：增加n-1倍)。 VAPeMO
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Eg. The production of integrated circuits has been increased to three times >|f"EK}m!
as compared with last year. YxF@ 1_g
The output of chemical fertilizer has been raised five times as against tv#oEM9esl
l986.化肥产量比1986年增加了4倍。 ^rWg:f
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That can increase metabolic rates by two or three times. (_FU3ZW!
那可使代谢率提高到原来的2倍或3倍(即提高1倍或2倍)。 Yy *=@qu>g
The drain voltage has been increased by a factor of four. F#Lo
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漏电压增加了3借(即增加到原来的4倍)。
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注：在这类句型中increase常被raise，grow，go/step up，multiply等词所替代。 qb>ULP0
三、There is a n-fold increase/growth…(⑧)应译为：增加n-倍(或增至n倍)。这个句型还有其它一些形式： +B*]RL[th
Eg. A record high increase in value of four times was reported. sz9W}&(j
据报道,价值破记录地增长了3倍。 P6+ B!pY
四、double (增加1倍)，treble(增加2倍)，quadruple(增加3倍)。(⑨)Eg. The efficiency of the a d LL7
machines has been more than trebled or quadrupled.这些机器的效率已提高了2倍或3倍多。 y:'Ns$+
五、此外，英语中还有一种用again而不用倍数词来比较倍数的方法，如： s6H.Q$3L
A is as much (large，long，…)again as B.(=A is twice as much 8(1*,CJQg
(large，long，…)as B.(⑩)应译为：A比B多(大，长，……)1倍。 ]az(w&vqg2
A is half as much (large， 1ong，…)again as B. VbX P7bZ
【=A is one a half times as much (large， 1ong，…)as |A&;m}(Mt
B.】(11)应译为:A比B多(大，长……)一半(即A是B的一倍半)。 K43 %9=sM
