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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 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: EioB%f3
倍数增加 =W BTm
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(一) A is n timesas great(long,much,…)as B.(①) ~XWQhIAM4
A is n times greater (longer, more,…)than B.(②) 4bw4cqY;
A is n times the size (length, amount,…)of B.(③) '{V0M<O
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]. qCqFy#Ms\
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Eg. This book is three times as long as (three times longer than,three times the length of )that one. h?8]C#6^
这本书的篇幅是那本书的3倍(即长两倍)。 8=Z9T<K
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注:当相比的对象B很明显时,than(as,of)B常被省去。 '-"/ =j&d[
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(二)increase to ntimes(④) M
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increase n times/n-fold(⑤) h_T7% #0
increase by n times(⑥) .sj
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increase by a factor of n(⑦) A?t%e
以上四式均应译为:增加到n倍(或:增加n-1倍)。 30.@g[~
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Eg. The production of integrated circuits has been increased to three times ascompared with last year. /S(zff[at
The output of chemical fertilizer has beenraised five times as against l986. FcYFovS
化肥产量比1986年增加了4倍。 t[oT-r
That can increase metabolic rates by two orthree times. t{WzKy
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)。 j(k:
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The drain voltage has been increased by afactor of four. ?}a;}Q6
漏电压增加了3借(即增加到原来的4倍)。 \u>"s
注:在这类句型中increase常被raise,grow,go/step up,multiply等词所替代。 OI0;BBZ
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(三)There is an-fold increase/growth…(⑧) ,;Hu=;
应译为:增加n-倍(或增至n倍)。这个句型还有其它一些形式: Ffv`kn@
Eg. A record high increase in value of four times was reported. w`il=ZAC
据报道,价值破记录地增长了3倍。 B{C??g8/
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(四)double (增加1倍),treble(增加2倍),quadruple(增加3倍)。(⑨) f/Hm{<BY
Eg. The efficiency of the machines has been more than trebled or quadrupled. P3nb2.
这些机器的效率已提高了2倍或3倍多。 ]):<ZsT
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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: bV$)!]V
A is as much (large,long,…)again as B.(= A is twice as much (large,long,…)as B.(⑩) i]|Yg$
应译为:A比B多(大,长,……)1倍。 I>[RqG
A is half as much (large, 1ong,…)again as B. dUF&."pW e
【= A is one and ahalf times as much (large, 1ong,…)as B.】(11) Pp`*]Ib
应译为:A比B多(大,长……)一半(即A是B的一倍半)。 CFqJ/''
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倍数减少 b r^_'1
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(一)A is n times assmall (light,slow,…)as B.(12) 5K<5kHpvJ{
A is n times smaller (lighter, slower,…) than B.(13) M\Z6$<H?U
以上两句均应译为:A的大小(重量,速度,……)是B的1/n[或A比B小(轻,慢,……)(n-1)/n]。 z(fAnn
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Eg. The hydrogen atom is near1y l6 times as light as the oxygen atom. g|<]B$yN#
氢原子的重量约为氧原子的1/16(即比氧原子约轻15/16)。 9f',7i
Eg. This sort of membrane is twice thinner than ordinary paper. P '>SmQ
这种薄膜比普通纸张要薄一半(即是普通纸厚度的1/2)。 )~+ e`q
注:当相比的对象B很明显时,than/as B常被省去。 8}FzZ?DRy
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(二)decrease ntimes/n--fold (14) 0qo)."V{
decrease by n times(15) #ceaZn|@m
decrease by a factor of n(16) 9uer(}WKT
以上三式均译为:减少到1/n[或:减少(n-1)/n]。 7G\\{
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decrease常被reduce, shorten, go/slow down等词替代。 (d<4"!
Eg. Switching time of the new-type transistor is shortened 3 times. X83 w@-$}
新型晶体管的开关时间缩短了1/3(即缩短到2/3)。 wQiX<)O
Eg. When the voltage is stepped up by ten times, the strength of the current is stepped down by tentimes. Pp|*J^U 4
电压升高9倍,电流强度便降低9/10(即90%)。 V\{tmDE
Eg. The equipment reduced the error probability by a factor of 5. ,daKC
该设备误差概率降低了4/5。 2con[!U
(三)There is an-fold decrease/reduction… V0%V5>
应译为:减至1/n [或:减少(n一1)/n]。(17) {O
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这个句型还有其它一些形式, :LQ5u[g$\
Eg. A rapid decrease by a factor of 7 was observed. 13+<Q \
发现迅速减少到1/7。 9:!gI|C
Eg. The principal advantage of the products is a two-fold reduction in weight. :OkT? (i
这些产品的主要优点是重量减轻了1/2。 ~>:Z6Le@
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从上列倍数增减句型及其译法中不难看出:与汉语不 同的是,英语在表述或比较倍数时,无论使用什么句 型(除了不含倍数词的again句型外)都包括基础倍 数在内,因此都不是净增或净减n倍,而是净增或 净减n-1倍。所以句型⑤、③表示的倍数增量=句型④; 句型(13)表示的倍数比差=句型12,且decrease(by) 3 times应译为“减少2/3”,而不是“减少3/4”。 jU3Z*Z)zN