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 :m #[V7
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： -.<fGhmU
倍数增加 A/ZZ[B-
一、 A is n times as great(long，much，…)as B.(①)A is n times greater (longer， # bc$[%_
more，…)than B.(②)A is n times the size (length， amount，…)of lQ(I/[qVd
B.(③)以上三句都应译为;A的大小(长度，数量，……)是B的n倍[或A比B大(长，多，……)n-1倍]. LS;j]!CU
Eg. This book is three times as long as (three times longer than，three R-QSv$
times the length of )that one. I8~ .Vu2
这本书的篇幅是那本书的3倍(即长两倍)。 &\
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注：当相比的对象B很明显时，than(as，of)B常被省去。 p)2
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二、increase to n times(④) rH Y SS0*3
increase n times/n-fold(⑤) u-qwG/ $E
increase by n times(⑥) t~_vzG
increase by a factor of n(⑦) >1uo5,wrF
以上四式均应译为：增加到n倍(或：增加n-1倍)。 0i/!by {@
Eg. The production of integrated circuits has been increased to three times 8G3C Q]G
as compared with last year. \"k[y+O],4
The output of chemical fertilizer has been raised five times as against 8.JFQ/) i
l986.化肥产量比1986年增加了4倍。 'C[{cr.`
That can increase metabolic rates by two or three times. n92*:Y
那可使代谢率提高到原来的2倍或3倍(即提高1倍或2倍)。 q~:H>;:G-
The drain voltage has been increased by a factor of four. w1 ;:B%!H
漏电压增加了3借(即增加到原来的4倍)。 a9LK}xc={
注：在这类句型中increase常被raise，grow，go/step up，multiply等词所替代。 hSkI]%
三、There is a n-fold increase/growth…(⑧)应译为：增加n-倍(或增至n倍)。这个句型还有其它一些形式： 80m<OW1
Eg. A record high increase in value of four times was reported. xD.Uh}:J
据报道,价值破记录地增长了3倍。 Z01BzIsR
四、double (增加1倍)，treble(增加2倍)，quadruple(增加3倍)。(⑨)Eg. The efficiency of the WzinEo{ f
machines has been more than trebled or quadrupled.这些机器的效率已提高了2倍或3倍多。 dlv1liSXL5
五、此外，英语中还有一种用again而不用倍数词来比较倍数的方法，如： dMd2a4
A is as much (large，long，…)again as B.(=A is twice as much ce 56$L8[
(large，long，…)as B.(⑩)应译为：A比B多(大，长，……)1倍。 yj$a0Rgkv
A is half as much (large， 1ong，…)again as B. , B90r7K:
【=A is one a half times as much (large， 1ong，…)as P55QE+B
B.】(11)应译为:A比B多(大，长……)一半(即A是B的一倍半)。 X mb001
