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： c<qe[iyt/
倍数增加 (iDBhC;/B
(一) A is n times as great(long，much，…)as B.(①). ^!>.97*
A is n times greater (longer， more，…)than B.(②). b!~TAT&8
A is n times the size (length， amount，…)of B.(③). nN{dORJlx
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]. Ysk, w,K
Eg. This book is three times as long as (three times longer than，threetimes the length of )that one. 7,_-XV2
这本书的篇幅是那本书的3倍(即长两倍)。 +H y4s[_|
注：当相比的对象B很明显时，than(as，of)B常被省去。 g.*&BXZi
(二)increase to n times(④). !d4HN.a7+u
increase n times/n-fold(⑤). Z% Z"VoxH
increase by n times(⑥). >6K4b/.5 w
increase by a factor of n(⑦). QV)}3pW
以上四式均应译为：增加到n倍(或：增加n-1倍)。 wG:$6
Eg. The production of integrated circuits has been increased to three timesas compared with last year. `V~LV<v5
集成电路的产量比去年增加了两倍。 ;E2kT
GT
Eg. The output of chemical fertilizer has been raised five times as againstl986. (wlfMiO
化肥产量比1986年增加了4倍。 qj;l,Kua
Eg. That can increase metabolic rates by two or three times. tBTJmih"
那可使代谢率提高到原来的2倍或3倍(即提高1倍或2倍)。 P7Z<0Dt\}
Eg. The drain voltage has been increased by a factor of four. ^(m0M$Wk*
漏电压增加了3借(即增加到原来的4倍)。 T"A^[ r*
注：在这类句型中increase常被raise，grow，go/step up，multiply等词所替代。 9g+UJ\u^
(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： dWIZ37w+D
Eg. A record high increase in value of four times was reported. Z3I L8
据报道，价值破记录地增长了3倍。 @C<d2f|8
(四)double (增加1倍)，treble(增加2倍)，quadruple(增加3倍)。(⑨). '@S,V/jy0z
Eg. The efficiency of the machines has been more than trebled or quadrupled. j`+0.Zlq
这些机器的效率已提高了2倍或3倍多。 sMN>wbHwh[
(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： 8t--#sDy{0
A is as much (large，long，…)again as B.(= A is twice as much (large，long，…)as . `L+ ~&M
B.(⑩) lbG}noqb
应译为：A比B多(大，长，……)1倍。 , ?t}NZ
Y&
A is half as much (large， 1ong，…)again as B. Kyyih|{
「= A is one and a half times as much (large， 1ong，…)as B.」(11). S]5VEn;pV
应译为：A比B多(大，长……)一半(即A是B的一倍半)。 giQ{Xrj
