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1、第 1 页 共 4 页2011 中考英语一轮复习中考英语一轮复习英语中表示倍数增加的表达方法英语中表示倍数增加的表达方法(一) A is N times as great（long, much，）as B. （）A is N times greater （longer, more，）than B. （）A is N times the size （length, amount，）of B. （）以上三句都应译为：A 的大小（长度，数量，）是 B 的 N 倍.e.g. This book is three times as long as （three times longer than/thr
2、ee times the length of）that one.这本书的篇幅是那本书的 3 倍（即长两倍）。注：注：当相比的对象 B 很明显时，than (as，of) B 常被省去。(二) increase to n times（）increase n timesn-fold（）increase by n times（）increase by a factor of n（）以上四式均应译为：增加到 n 倍 (或：增加 n-1 倍)。e.g. The production of integrated circuits has been increased to three timesas co
3、mpared with last year. 集成电路的产量比去年增加了两倍。e.g. The output of chemical fertilizer has been raised five times as against l986. 化肥产量比 1986 年增加了 4 倍。e.g. That can increase metabolic rates by two or three times. 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）。e.g. The drain voltage has been increased by a factor of fou
4、r. 漏电压增加了 3 借（即增加到原来的 4 倍）。注：注：在这类句型中 increase 常被 raise，grow，go/step up，multiply 等词所替代。(三) There is a n-fold increase/growth（）应译为：增加 n-倍（或增至 n 倍）。这个句型还有其它一些形式：e.g. A record high increase in value of four times was reported. 据报道，价值破记录地增长了 3 倍。(四) double （增加 1 倍），treble（增加 2 倍），quadruple（增加 3 倍）。()e.g
5、. The efficiency of the machines has been more than trebled o r quadrupled. 这些机器的效率已提高了 2 倍或 3 倍多。(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：第 2 页 共 4 页A is as much （large，long，）again as B.（= A is twice as much （large，long，）as B.（）应译为：A 比 B 多（大，长，）1 倍。A is half as much （large， 1ong，）again as B.(= A is o
6、ne and a half times as much （large， 1ong，）as B.）（11）应译为：A 比 B 多（大，长）一半（即 A 是 B 的一倍半）。内部资料，请勿外传！#XuyUP2kNXpRWXmA&UE9aQGn8xp$R#͑GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGp
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