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： uppA`>
倍数增加 ,Q >u
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(一) A is n times as great(long，much，…)as B.(①). C6:<.`iD87
A is n times greater (longer， more，…)than B.(②). Y <Ta2H
A is n times the size (length， amount，…)of B.(③). M|6
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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]. :Uj+iYE8Z8
Eg. This book is three times as long as (three times longer than，threetimes the length of )that one. 3($%A GKJ
这本书的篇幅是那本书的3倍(即长两倍)。 #Ubzh`v
注：当相比的对象B很明显时，than(as，of)B常被省去。 * t{A=Wk
(二)increase to n times(④). 8cF-kfbfZ
increase n times/n-fold(⑤). {pE")O7~P
increase by n times(⑥). cAV9.VS<L
increase by a factor of n(⑦). x]XhWScr '
以上四式均应译为：增加到n倍(或：增加n-1倍)。 c7L#f=Ot?
Eg. The production of integrated circuits has been increased to three timesas compared with last year. \y"!`.E7\d
集成电路的产量比去年增加了两倍。 `2Ju[P
Eg. The output of chemical fertilizer has been raised five times as againstl986. N9Y,%lQ|B8
化肥产量比1986年增加了4倍。 Ng0V&oDI
Eg. That can increase metabolic rates by two or three times. _t 'Kj \
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)。 ?SkYFa`u *
Eg. The drain voltage has been increased by a factor of four. 1 n Ib/nY
漏电压增加了3借(即增加到原来的4倍)。 $T hkK3
注：在这类句型中increase常被raise，grow，go/step up，multiply等词所替代。 #3f\,4K 5
(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： r> eOq[z
Eg. A record high increase in value of four times was reported. ]}<wS ]1
据报道，价值破记录地增长了3倍。 S/"-x{Gc2v
(四)double (增加1倍)，treble(增加2倍)，quadruple(增加3倍)。(⑨). +D& W!m
Eg. The efficiency of the machines has been more than trebled or quadrupled. X48Q{E+
这些机器的效率已提高了2倍或3倍多。 1;i[H[hNY
(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： LZqx6~]O
A is as much (large，long，…)again as B.(= A is twice as much (large，long，…)as . N0,.cd]y`
B.(⑩) _Y40a+hk]
应译为：A比B多(大，长，……)1倍。 _S7GkpoK
A is half as much (large， 1ong，…)again as B. w4<RV:Vmt
「= A is one and a half times as much (large， 1ong，…)as B.」(11). n9B1NM5 \
应译为：A比B多(大，长……)一半(即A是B的一倍半)。 3+;]dqZ
