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 GQTMQXn(
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： Z,Z34:-
倍数增加 ;%Jw9G\h
一、 A is n times as great(long，much，…)as B.(①)A is n times greater (longer， ;f7(d\=y
more，…)than B.(②)A is n times the size (length， amount，…)of Z@= 1-l
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]. M* (]hu0!
Eg. This book is three times as long as (three times longer than，three m<wng2`NTv
times the length of )that one. yAoJ?<4^W
这本书的篇幅是那本书的3倍(即长两倍)。 0(;d<u)fS
注：当相比的对象B很明显时，than(as，of)B常被省去。 ?9_<LE
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二、increase to n times(④) #J]u3*T n|
increase n times/n-fold(⑤) N %-Cp)
increase by n times(⑥) KAm v7
increase by a factor of n(⑦) 1Fn+nDn O6
以上四式均应译为：增加到n倍(或：增加n-1倍)。 -cCujDM#T
Eg. The production of integrated circuits has been increased to three times &}S#6|[i
as compared with last year. +$_W4lf|E2
The output of chemical fertilizer has been raised five times as against o+SD(KVn-
l986.化肥产量比1986年增加了4倍。 _*1/4^
That can increase metabolic rates by two or three times. 7</&=lly
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)。 Z VuHO7'
The drain voltage has been increased by a factor of four. 8*3<Er
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漏电压增加了3借(即增加到原来的4倍)。 {%xwoMVc+
注：在这类句型中increase常被raise，grow，go/step up，multiply等词所替代。 0& Q-y&$7
三、There is a n-fold increase/growth…(⑧)应译为：增加n-倍(或增至n倍)。这个句型还有其它一些形式： C)`k{(-{
Eg. A record high increase in value of four times was reported. mc;Z#"kf
据报道,价值破记录地增长了3倍。 t K6z#)
四、double (增加1倍)，treble(增加2倍)，quadruple(增加3倍)。(⑨)Eg. The efficiency of the "o/:LCE
machines has been more than trebled or quadrupled.这些机器的效率已提高了2倍或3倍多。 9
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五、此外，英语中还有一种用again而不用倍数词来比较倍数的方法，如： Ln0rm9FV-
A is as much (large，long，…)again as B.(=A is twice as much 3'6%P_S
(large，long，…)as B.(⑩)应译为：A比B多(大，长，……)1倍。 LFob1HH*8
A is half as much (large， 1ong，…)again as B. Iodk1Y;
【=A is one a half times as much (large， 1ong，…)as [s$vY~_
B.】(11)应译为:A比B多(大，长……)一半(即A是B的一倍半)。 f8kPbpV,
