英语中表示倍数增加的表达方法.docx

1、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 greatlong，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倍或A比B大长，多，N-1倍.e.g. This book is three times as long as (three times longer than/three times the length of) that one.这本书的篇幅是

2、那本书的3倍即长两倍。注：当相比的对象B很明显时，thanas，ofB常被省去。二increase to n timesincrease n timesn-foldincrease by n timesincrease 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 times as compared with last year. 集成电路的产量比去年增加了两倍。e.g. The output of chemical fe

3、rtilizer 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. 那可使代谢率进步到原来的2倍或3倍即进步1倍或2倍。e.g. The drain voltage has been increased by a factor of four. 漏电压增加了3借即增加到原来的4倍。注：在这类句型中increase常被raise，grow，go/step up，multiply等词所替代。三There is

4、 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. The efficiency of the machines has been more than trebled or quadrupled 这些机器的效率已进步了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

5、，如：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 one 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。英语中表示倍数增加的表达方法一 A is N times as greatlong，much，as B. A is N times greater longer， more，tha

6、n 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倍或A比B大长，多，N-1倍.e.g. This book is three times as long as (three times longer than/three times the length of) that one.这本书的篇幅是那本书的3倍即长两倍。注：当相比的对象B很明显时，thanas，ofB常被省去。 二increase to n times increase n timesn-fold increase by n times

7、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 times as compared 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

8、rates by two or three times. 那可使代谢率进步到原来的2倍或3倍即进步1倍或2倍。e.g. The drain voltage has been increased by a factor of four. 漏电压增加了3借即增加到原来的4倍。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 ti

9、mes 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. The efficiency of the machines has been more than trebled or quadrupled 这些机器的效率已进步了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：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

10、 as much large， 1ong，again as B.(= A is one 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。 英语中表示倍数增加的表达方法 佚名 新闻来源：网络 点击数：43 更新时间：2009-5-11 一 A is N times as greatlong, 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

11、，数量，是B的N倍。e.g. This book is three times as long as three times longer than/three times the length ofthat one.这本书的篇幅是那本书的3倍即长两倍。注：当相比的对象B很明显时，than as，of B常被省去。二 increase to n timesincrease n timesn-foldincrease by n timesincrease 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 integrat

12、ed circuits has been increased to three times as compared 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. 那可使代谢率进步到原来的2倍或3倍即进步1倍或2倍。e.g. The drain voltage

13、has been increased by a factor of four. 漏电压增加了3借即增加到原来的4倍。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.

14、The efficiency of the machines has been more than trebled or quadrupled. 这些机器的效率已进步了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：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 one and a half times as much large， 1on

15、g，as B.11应译为：A比B多大，长一半即A是B的一倍半。高考英语中“倍数的常用表达方式有这样一道高考题： 2003 上海 The house rent is expensive. Ive got about half the space I had at home and Im paying _ here.A. as three times muchB. as much three timesC. much as three timesD. three times as much该题的正确答案为 D .显然此题是在考察倍数的表达法。倍数表达法是高中英语教学的重点，也是历年的高考热点之一。

16、掌握倍数的表达法对于同学们学好英语具有重要意义。下面对倍数的几种表达法作一归纳：一、用 times 表示倍数一般限于包括基数在内三倍或三倍以上的数。表示两倍的数，一般用 twice 。其句式有：1. “ times 形容词 / 副词的比较级 than 例如：Line AB is three times longer than line CD.线段 AB 是线段 CD 的三倍长。This hall is five times bigger than our classroom.这个大厅比我们的教室大 5 倍。2. “ times +as + 形容词 / 副词的原级 as 例如：This tabl

17、e is three times as long as that one.这张桌子是那张桌子的三倍长。This dictionary is five times as thick as the one you borrowed from the library.这本词典的厚度是你从图书馆借的那本厚度的 5 倍。3. “ times + the + 名词如： size， height， weight， length， width 等 of 例如：The earth is 49 times the size of the moon.地球的体积是月球的 49 倍。This river is thre

18、e times the depth of that one.这条河是那条河的三倍深。4. “ times + more 名词 than 例如：He earns five times more money than he did ten years ago.他如今挣的钱比十年前挣的多 5 倍。There are twice more students in our class than in theirs.我们班的学生人数比他们班多两倍。5. “ times +as many 或 much 名词 as 例如：Weve produced twice as much cotton this year

19、 as we did ten years ago.今年我们消费的棉花比十年前多了一倍。汉语中的多一倍实际上也指两倍一样多。He has got three times as many books as his sister.他拥有的书的数量是他妹妹的 3 倍。6. “ times + what 从句例如：The length of the road is four times what it was three years ago.这条路的长度是三年前的 4 倍。The price of the meat is twice what it was last year.肉价是去年的两倍。7. “

20、 times + up on 或 over 例如：The size of the sun is a million times over that of the earth.太阳的体积比地球的体积大一百万倍。He is three times up on your age.他的年龄是你的 4 倍或：比你的年龄大 3 倍。8. “ +by + times 例如：Compared with last year， our coal output has increased by three times.与去年相比，我们的煤产量增长了 3 倍。His speed is faster than mine

21、 by four times.他的速度比我的快 4 倍。9. “ times + compared with 被比较对象例如：The number of the students in our school has increased for times compared with 1980.我们学校的学生人数比 1980 年增加了 3 倍。10. “ times + that of + 被比较对象例如：In this workshop the output of July was 3.5 times that of January.这个车间七月份的产量是元月份的 3.5 倍。二、用分数、百分

22、数表示倍数。例如：The box is one-third bigger than that one.这个盒子比那个盒子大三分之一。Last year the output value of industry was 59 percent higher than that of 1976.去年工业产值比 1976 年增长了 59 。My command of English is not half so good as yours.我英语掌握得还不及你的一半儿好。三、用 again 一倍， double 两倍， triple 三倍， fourfold 四倍等词表示倍数。例如：My Aunt i

23、s as old again as I am.我姑姑的年龄比我大一倍。The top-brand clothes are often sold as double the normal price here.这里名牌衣服的售价经常比正常的售价高一倍。The new work procedure tripled the output.新工艺使产量增加两倍。The output of grain increased fourfold.粮食产量增加了三倍。稳固练习1. 2002 上海春 Americans eat _ vegetables per person today as they did i

24、n 1910.A. more than twiceB. as twice as manyC. twice as many asD. more than twice as many2. 1998 上海 Paper produced every year is _ the worlds production of vehicles.A. the three weight ofB. three times the weight ofC. as three times heavy asD. three times as heavier as3. 1994 上海 With the help of the

25、 German experts， the factory produced _ cars in 1993 as the year before.A. as twice manyB. as many twiceC. twice as manyD. twice many as4. MET 1992 This ship measures _ that one.A. as twice as longB. as twice long asC. twice long asD. twice as long as5. MET 1990 After the new technique was introduced， the factory produced _ tractors in 1988 as the year before.A. as twice manyB. as many asC. as twice as manyD. twice as manyKey： 1 5 DBCDD