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 aDL*W@1S
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： {G3i0 r
倍数增加 u6 J
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一、 A is n times as great(long，much，…)as B.(①)A is n times greater (longer， bMKL1+y(
more，…)than B.(②)A is n times the size (length， amount，…)of D C Q^fZ/
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]. > cN~U3
Eg. This book is three times as long as (three times longer than，three P"3*lk+w
times the length of )that one.
Paj vb-f
这本书的篇幅是那本书的3倍(即长两倍)。 hs+kr?Pg`
注：当相比的对象B很明显时，than(as，of)B常被省去。 e3(/qMl
二、increase to n times(④) ',I0ih#Ls
increase n times/n-fold(⑤) p'94SXO_
increase by n times(⑥) [10zTU`
increase by a factor of n(⑦) 0N :XIGFa
以上四式均应译为：增加到n倍(或：增加n-1倍)。 $s5a G)?7
Eg. The production of integrated circuits has been increased to three times 5W? v'"
as compared with last year. H%F>@(U
The output of chemical fertilizer has been raised five times as against 1|r,dE2k9
l986.化肥产量比1986年增加了4倍。 tBATZ0nK`Q
That can increase metabolic rates by two or three times. V5f9]D
那可使代谢率提高到原来的2倍或3倍(即提高1倍或2倍)。 R& f^+0%f
The drain voltage has been increased by a factor of four. {a(&J6$VE
漏电压增加了3借(即增加到原来的4倍)。 _~u2: yl (
注：在这类句型中increase常被raise，grow，go/step up，multiply等词所替代。 ufV!+$C)is
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： !p /%lU65
Eg. A record high increase in value of four times was reported. _nh[(F<hz
据报道,价值破记录地增长了3倍。 SMH<'F7 i
四、double (增加1倍)，treble(增加2倍)，quadruple(增加3倍)。(⑨)Eg. The efficiency of the DV)3
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。 ]i<[d ,
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： NEt1[2 X%
A is as much (large，long，…)again as B.(=A is twice as much w;UqEC V
(large，long，…)as B.(⑩)应译为：A比B多(大，长，……)1倍。 yXI >I
A is half as much (large， 1ong，…)again as B.
HB+|WW t>
【=A is one a half times as much (large， 1ong，…)as S"Lx%
B.】(11)应译为:A比B多(大，长……)一半(即A是B的一倍半)。 tZ`Ts}\ e
