英语中常见倍数的表达
浅谈英语中倍数的表达法
张贵元
一、在英语中,表示比较两个事物或人的大小、高低、长短、轻重等时,常用“倍数”来表达,如“甲是乙的几倍大(长、高、宽,,)”或“甲比乙大(长、高、宽,,)几倍”。表示“甲是乙的几倍”或“甲几倍于乙”时,常用以下三个句型。
句型I: A is+倍数（数词+ times）+as+adj./adv. (原级)+as+(比较对象)B
这个句型常用来表示A是B的多少倍。
1.This room is three times as big as that one.这个房间是那个房问的三倍大。
新技术被引进之后，这家工厂1988年生产拖拉机的产量是前一年的两倍。
2. Asia is four times as large as Europe.
亚洲的面积是欧洲的四倍大。（或：亚洲的面积比欧洲大三倍）
3. This room is three times as big as that one.
这个房间是那个房间的三倍大。（或：这个房间比那个房间大两倍）
4. We can produce ten times as many TV sets now as we did ten years ago.
我们现在生产的电视机是十年前的十倍。（或：我们现在生产的电视机比十年前多九倍）
5. This tree is nine times as tall as that one.
这棵树的高度是那棵树(高度)的九倍。
6. This dictionary is five times as thick as that 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)的五倍。
句型II: (1) A is+倍数（数词+times）+adj./adv(比较级)+than+ (比较对象)B
这个句型常用来表示A比B多多少倍。
1. This street is three times longer than that one.
这条街道比那条街道长三倍。（或：这条街道是那条街道的四倍长）
2. The new method was over eight times more efficient than the traditional one.
新方法比传统方法效率提高八倍以上。（或：新方法是传统方法效率的九倍以上）
3. The meeting- room is four times bigger than yours.
这个会议室比你们的大四倍。（或：这个会议室是你们的五倍大）
4. Line AB is three times longer than line CD. 线段AB是(线段)CD的三倍。
5. My books are four times more than yours. 我的书比你的(书)多四倍。
6. This table is twice bigger than that one. 这张桌子比那张大两倍。
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7. Tom has four times more money than I have. 汤姆的钱比我多四倍。
(2) A +is+ adj./adv(比较级)+than +(比较对象)B+ by十（数词+times）倍数
The line is longer than that one by twice. 这条线比那条线长两倍。
句型III:
(1)主语A+谓语(be)+ (数词+times)倍数+the+性质名词(size/height /length /width /depth
/length)+ of+（比较对象）B
1. This rope is three times the length of that one.这根绳子的长度是那根绳子的三倍。
2. I offered ten times the amount of money that Antonio has borrowed.
我愿意出十倍于安东尼奥借的钱。
3. The earth is 49 times the size of the moon. 地球的大小是月球的49倍。
4. The new bridge is three times the width of the wooden one.这座新桥是那座木桥的三倍宽。
5. This room is five times the size of that one. 这个房间是那个房间的五倍大。
(2)主语A+谓语(be)+ (数词+times)倍数+what-clause
The output of cars in 2019 is six times that of 2019.=The output of cars in 2019 is six times
what it was in 2019. 2019年汽车产量是2019年汽车产量的六倍。
1. The earth is 49 times the size of the moon. 地球的体积是月球的49倍。
2.This street is twice the width and three times the length of that one.这条街是那条街的两倍
宽、三倍长。
四、特别注意《英汉的差异》:在使用这三种句型时,如表示”A比B大(长、宽、高…..)多少倍”或”A比B增加多少倍”时,须注意英语要比汉语多说一倍。
1.这辆公共汽车比那辆红色的大一倍。
This bus is twice bigger than that red one.
2.这个箱子比那个箱子重两倍。
This box is three times as heavy as that one.
3.这个操场比那个大四倍。
This playground is five times the size of that one.
其实这三种用法都可以互换。如“亚洲是欧洲的四倍大”,可译为:
Asia is f our times as big as Europe.
Asia is four times the size of Europe.
Asia is three times bigger than Europe.
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五、在英语中,用名词表示“量”的倍数时, 常用以下两个句型。
句型I: …..倍数+more+名词(可数,不可数)+than…..。例如:
We have produced twice more grain than we did last year.
我们今年生产的粮食比去年增长一倍。
句型II:……倍数+as many(much)+名词+其它+as…….。例如
There is three times as much water in this pot as in that one.
这个壶里的水是那个壶里的三倍。
使用时特别注意：
1.用“times”表示倍数只限于三个以上（包括三个）的倍数，表示两倍的要用“twice或double”。
2.A+is+分数+as+形容词或副词的原级+as+B。----------------表示:A是B的几分之几。
A+is+分数+形容词或副词的比较级+than B . --------------表示:A比B大/小几分之儿。
例如：
①This room is twice the size of that one.
这个房间是那个房间的两倍大。（或：这个房间比那个大一倍）
②Their farm is nearly twice as big as ours.
他们的农场几乎是我们的两倍。（或：他们的农场几乎比我们的大一倍）
③The total income of 2019 was double that of 2019.
2019年的总收入是2019年的两倍。（或：2019年的总收入比2019年增加了一倍）
3.另外，副词“again”用于as...as的句型里也能表示倍数。例如：
①Wheel A turns as fast again as Wheel B.
甲轮比乙轮转速快一倍。（或：甲轮的转速是乙轮的两倍）
the pair I bought.
as much again as②These shoes cost me（或：这双鞋子的价格是我买的那双的两倍）这双鞋子比我买的那一双贵一倍。we did in 1957. 1.By that time we shall produce
B.as twice much grain as A.twice as much grain as
D.much twice as grain as
C.twice much as grain as
tractors in 1988 2.After the new technique was introduced, the factory produced
as the year before.
B.as many three times A.as three times many
D.three times many as
C.three times as many
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3.Output of coal was that of last year.
A.four times as greater as
B.four times as great as
C.four time as great as
D.fourth times as great as
4.------Do you regret paying 15 dollars for this dictionary?
-------No,I would gladly pay for it.
A.twice as much
B.twice such much
C.twice as many
D.twice so many
:1.A 2.C 3.B 4.A 答案
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英语中倍数的表达方式
英语中“倍数”的常用表达方式 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。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：(前三种为主 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. 大 5 倍。 这个大厅比我们的教室 This rope is twice longer than that one ． This hall is five times bigger than our classroom ． The car runs twice faster than that truck ． 2. “?times +as +形容词/ 副词的原级＋as ?”例如： This table 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。 Asia is four times as large as Europe 亚洲的面积是欧洲的四倍。 This big stone is three times as heavy as that one ． 倍） 这块大石头的重量是那一块的三倍。（这块石头比那块重二 The plane flew ten times as high as the kite ． 那架飞机飞行高度是那个风筝的十倍。（高出九倍） 3. “?times + the +名词（如：size ，height ，weight ，length ，width, age 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。
英语倍数表达法基本句型
一. 表达倍数的三个基本句型 1.“A+be动词/谓语动词+倍数+as+形容词/副词原级+as+B”，表示“A正好是B 的多少倍”。例如： Asia is four times as large as Europe. 亚洲的面积是欧洲的四倍。 This big stone is three times as heavy as that one. 这块大石头的重量是那块的三倍。 The plane flew ten times as high as the kite. 那架飞机的飞行高度是那只风筝的十倍。 2. “A+be动词/谓语动词+倍数+形容词/副词比较级+than+B”，表示“A比B大（长、高、宽等）多少倍”。例如： This rope is twice longer than that one. 这根绳子比那根绳子长两倍（是那根绳子三倍长）。 This hall is five times bigger than our classroom. 这个大厅比我们的教室大五倍(是我们教室的六倍大)。 The car runs twice faster than that truck. 这辆小车的速度比那辆卡车快两倍（是那辆卡车的三倍快）。 3. “A+be动词+倍数+the size/height/length/width, etc+of+B”，表示“A正好是B的多少倍”。例如： This street is four times the length of that one.这条街是那条街的四倍长。 This hill is four times the height of that small one.这座山的高度是那座小山的四倍。除表达倍数的三个基本句型外，我们还要掌握其基本句型的7种变形。
英语中常用倍数表达法
英语倍数的表达方法 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。表示两倍的数用twice）1.“A + be + 倍数+ as + 形容词或副词原级+ as + B" This tree is three times as tall as that one. 这棵树是那棵树的三倍高。 His father is twice as old as he. 他父亲的年纪有他两倍大。 2.“A + be + 倍数+ 形容词或副词的比较级+ than + B ” The Yangtze River is almost twice longer than the Pearl River. 长江差不多比珠江长两倍。 The dictionary is exactly five times more expensive than that one. 这本字典比那本恰好贵5倍 3.“A + be + 倍数+ the + 计量名词+ of + B ” The newly broadened square is four times the size of the previous one. 新扩建的广场是未扩建时的四倍大。 计量名词：size大, length长, width宽, height高, depth深，weight重…倍数+the size of …… …倍数+the length of …… …倍数+the height of …… …倍数+the width of …… …倍数+the depth of …… …倍数+the weight of …… 4. “The + 计量名词+ of + A + be + 倍数+ that + of + B” The size of the newly broadened square is four times that of the previous one. 新扩建的广场为以前的四倍大。 5.“…times + that of+被比较对象” In this workshop the output of July was three times that of January. 这个车间7月份的产量是元月份的三倍。
英语中表示倍数的常见句型
英语中表示倍数的常见句型 倍数表达法是高中英语教学的重点，也是历届高考的热点。当我们要表达甲是乙的几倍时，通常用下面三个句型来表示： 一. “倍数+形容词（或副词）的比较级+than+从句” 表示“A比B大（长、高、宽等）多少倍” This rope is twice longer than that one.这根绳是那根绳的三倍（比那根绳长两倍）。 The car runs twice faster than that truck.这辆小车的速度比那辆卡车快两倍（是那辆卡车的三倍）。 This street is four times shorter than that one. 这条街道比那条短四倍。 The mother elephant is one hundred times heavier than the baby elephant.这只母象比小象重一百倍。 It is ten times louder than another. 它比另外一个的声音大十倍。 This street is three times wider than that one. 这条街比那条街宽三倍。 I am twice older than he. 我的年纪比他大两倍。 The box is one-third bigger than that one. 这个盒子比那个盒子大三分之一。 二. “倍数+as+形容词或副词的原级+as+从句” 表示“A正好是B的多少倍”。 Asia is four times as large as Europe.亚洲的面积是欧洲的两倍。 The plane flew ten times as high as the kite.那架飞机的飞行高度是那个风筝的十倍（高出九倍） I am twice as old as he. 我的年纪是他的两倍。 She studies three times as hard as I. 她用功的程度是我的三倍。 This line is four times as long as that one. 这条线是那条线的四倍长。 An ordinary train, approaching the station, can be twice as loud as the loudest jet. 普通火车进站时发出的声音可能是喷射机的两倍。 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. “倍数+the size/ height/ length/ width，etc.+of…” 表示“A正好是B的多少倍”。 This street is four times the length of that one.这条街是那条街的四倍长。 This hill is four times the height of that small one.这座山的高度是那座山的四倍（比那座山高三倍） Line A is four times the length of line B. 线条A 是线条B 的四倍长。 I have five times the number of Tom’s books. 我有五倍于汤姆的书。 The river is ten times the length of the Tamsui River. 这条河的长度是淡水河的十倍。 It was over twice the distance of the earth from the sun. 那是地球到太阳的距离的两倍多。The earth is 49 times the size of the moon. 地球的体积是月球的49 倍。 This river is three times the depth of that one. 这条河深度是那条河的三倍。 下边也可看作是这种句式的变化： 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。 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
英语中如何表达倍数
英语中如何表达倍数 1. 倍数+ as + 形容词或副词的原级+ as + 其他。 这种结构又常演变成下列两类： ①倍数+ as + many + 可数名词复数+ as； ②倍数+ as +much + 不可数名词+ as。如： There are seven times as many people as I expected.是我预料的人数的七倍。 There is five times as much coffee in this glass as in that one. 这个杯子里的咖啡是那个杯子里的五倍。 2. 倍数+ 形容词（或副词）的比较级+ than + 其他。如： The hall is five times bigger than our classroom. 这个大厅的面积比我们教室大五倍。 3. 倍数+ the size / height / length / width. etc. + of + 其他。如： This road is six times the length of that one. 这条路是那条路的六倍长。 4. 计量名词+ of + 名词+ be +倍数+ that + of + 其他。如： The size of the newly broadened square is four times that of the previous one. 新扩建的广场为以前的四倍大。 5. 倍数+what从句。如： The production is now three times what it was ten years ago.现在的产量是十年前的三倍。 6. 倍数+ more + 名词+ than +其他。如： There are nine times more books in his bag than in yours. 他书包里的书比你书包里的书多九倍。 7. 其他表达。如： She’s twice/ double my age. 她的年龄是我的两倍。
英语中的11种倍数表达法
For personal use only in study and research; not for commercial use 英语中的11种倍数表达法 一. 表达倍数的3个基本句型 1.“A+be动词/谓语动词+倍数+as+形容词/副词原级+as+B”，表示“Ａ正好是B的多少倍”。例如： Asia is four times as large as Europe. 亚洲的面积是欧洲的四倍。 This big stone is three times as heavy as that one. 这块大石头的重量是那块的三倍。 The plane flew ten times as high as the kite. 那架飞机的飞行高度是那只风筝的十倍。 2. “A+be动词/谓语动词+倍数+形容词/副词比较级+than+B”，表示“Ａ比B大(长、高、宽等)多少倍”。例如：This rope is twice longer than that one. 这根绳子比那根绳子长两倍(是那根绳子三倍长)。 This hall is five times bigger than our classroom. 这个大厅比我们的教室大五倍(是我们教室的六倍大)。 The car runs twice faster than that truck. 这辆小车的速度比那辆卡车快两倍(是那辆卡车的三倍快)。 3. “A+be动词+倍数+the size/height/length/width, etc+of+B”，表示“Ａ正好是B的多少倍”。例如： This street is four times the length of that one. 这条街是那条街的四倍长。 This hill is four times the height of that small one. 这座山的高度是那座小山的四倍。 二. 倍数表达基本句型的7种变形
英语中倍数的表达法
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。 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）。 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。（3）There is a n-fold increase/growth…应译为：增加n-倍（或增至n倍）。（⑧）这个句型还有其它一些形式，如： 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。 （4）double【增加1倍】，treble（增加2倍），quadruple（增加3倍）。(⑨)例如：The efficiency of the machines has been more than trebled or quadrupled．这些机器的效率已提高了2倍或3倍多。 (5)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.】（⑩）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）。 2、倍数减少（1）A is n times as small（light，slow，…）as B.（12） A is n times smaller（lighter，slower，…）than B.（13） 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]。例如： The hydrogen atom is near1y l6 times as light as the oxygen atom.氢原子的重量约为氧原子的1/16（即比氧原子约轻15／16）。 This sort of membrane is twice thinner than ordinary paper.这种薄膜比普通纸张要薄一半（即是普通纸厚度的1／2）。注：当相比的对象B很明显时，than/as B常被省去。 （2）decrease n times／n一fold（14） 以上三式均译为：减少到1／n[或：减少（n-1）／n]。decrease常被reduce，shorten，go／slow down等词替代。例如： Switching time of the new-type transistor is shortened 3 times。新型晶体管的开关时间缩短了1／3（即缩短到2／3）。 When the voltage is stepped up by ten times，the strength of the current is stepped down by ten times。电压升高9倍，电流强度便降低9／10（即90％）。 The equipment reduced the error probability by a factor of 5.该设备误差概率降低了4/5。 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。
初中英语、英语倍数表达法
英语倍数表达法 袁征 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： 倍数增加 (一) A is n times as great（long，much，…）as B.（①） A is n times greater （longer，more，…）than B.（②） A is n times the size （length，amount，…）of B.(③) 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]. 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，than（as，of）B常被省去。 （二）increase to n times（④） increase n times／n-fold（⑤） increase by n times（⑥） increase by a factor of n（⑦） 以上四式均应译为：增加到n倍（或：增加n-1倍）。 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。 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。 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）。 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…（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： 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）。(⑨)
英语中倍数的表达方式
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：(前三种为主)
C. twice as many as D. more than twice as many 2. （1998 上海）Paper produced every year is _______ the world's production of vehicles. A. the three weight of B. three times the weight of C. as three times heavy as D. three times as heavier as(heavier应改为原级) 3.（1994 上海）With the help of the German experts，the factory produced ______ cars in 1993 as the year before. A. as twice many B. as many twice C. twice as many D. twice many as 4. （MET 1992 ）This ship measures ________ that one. A. as twice as long B. as twice long as C. twice long as D. twice as long as 5. （MET 1990 ）After the new technique was introduced，the factory produced _______ tractors in 1988 as the year before. A. as twice many B. as many as C. as twice as many D. twice as many 6. It is reported that the United States uses________energy as the whole of Europe. A.as twice B.twice much C.twice much as D.twice as much Key：1 －6 DBCDDD 7. The house rent is expensive, I?ve got about half the space I had at home and I?m paying ________ here. (上海卷) A. as three times much B. as much three times C. much as three times D. three times as much 【分析】答案选D。倍数three times要放在as的前面，后面省略as I paid at home。 8. With the help of the German experts, the factory produced ________ cars in 1993 as the year before. (上海卷) A. as twice many B. as many as twice C. as twice as many D. twice as many 【分析】答案选D。倍数放在as之前。此题与全国卷曾考过的一题几乎一样： 9.The house rent is expensive. I've got about half the space I had at home and I'm paying _______ here. （2003 上海） A. as three times much B. as much three times C. much as three times D. three times as much
英语中倍数的表达
1. 倍数+as+形容词或副词的原级+as+其它。这种结构又常演变成下列两类： ①倍数+as+many+可数名词复数+as; ②倍数+as+much+不可数名词+as。如： There are seven times as many people as I expected. 是我预料的人数的七倍。 There is five times as much coffee in this glass as in that one. 这个杯子里的咖啡是那个杯子里的五倍。 2. 倍数+形容词（或副词）的比较级+ than+其它。如： The hall is five times bigger than our classroom. 这个大厅的面积比我们教师大五倍。 3. 计量名词+of+名词+be+倍数+that+of+其它。如： The size of the newly broadened square is four times that of the previous one. 新扩建的广场为以前的四倍大。 4. 倍数+what从句。如： The production is now three times what it was ten years ago. 现在的产量是十年前的三倍。 5. 倍数+more+名词+than+其它。如：
There are nine times more books in his bag than in yours. 他书包里的书比你书包里的书多九倍。 6. 其它表达。如： She's twice/double my age. 她的年龄是我的两倍。 The average income of the staff has been increased by 50 percent compared with last year. 与去年相比，该单位职工的收入已增加了50%。 He runs faster than me by three times. 他跑得比我快三倍。 【考查方向】 1）倍数在句中的位置一般放在第一个as前面或比较级前面或名词前面。 2）用times表示倍数时，一般只限于表示包括基数在内的三倍或三倍以上的数。表示两倍可以用twice或double,一倍用once. 【重点归纳】 除了我们初中所学的形容词的比较级的用法，本模块我们主要归纳几种句式结 （一）含倍数的比较句型 1. 倍数+as+形容词原级+as…。如： This bridge is three times as long as that one. His room is twice as big as mine;in other words,mine is only half as big as his.
英语中倍数的表达法
英语中倍数的表达方式 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：(前三种为主) 1. “… times ＋形容词/ 副词的比较级＋than …”例如： This rope is twice longer than that one．This hall is five times bigger than our classroom． 2. “… times +as + 形容词/ 副词的原级＋as …”例如： 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。 This big stone is three times as heavy as that one． 这块大石头的重量是那一块的三倍。（这块石头比那块重二倍） The plane flew ten times as high as the kite．那架飞机飞行高度是那个风筝的十倍。（高出九倍） 3. “… times + the + 名词（如：size，height，weight，length，width, age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 three times the depth of that one. 这条河是那条河的三倍深。 This hill is four times the height of that small one．这座山的高度是那座小山的四倍。（比那座小山高三倍）4. “… times + more ＋名词＋than …”例如： He earns five times more money than he did ten years ago. 他现在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： We've produced twice as much cotton this year as（we did ）ten years ago. 今年我们生产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. “… times + upon （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 upon 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 by four times. 9. “… times + compared with ＋被比较对象”例如： The number of the students in our school has increased four times compared with 1980. 我们学校的学生人数比1980 年增加了4倍。 10. “… times + that of + 被比较对象”例如： In this workshop the output of July was three times that of January. 这个车间七月份的产量是元月份的3 倍。 二、用分数、百分数表示倍数。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。 ［巩固练习］ 1. Americans eat ________ vegetables per person today as they did in 1910. A. more than twice B. as twice as many C. twice as many as D. more than twice as many
英语中倍数关系表达
1）n times +形容词（或副词）比较级+than… times是用来表示“乘”的（used to indicate multiplication）n times就是“乘以n”的意思。不论在任何句型中都包括基数100%在内。 [1] Asia is four times larger than Europe. 误译：亚洲比欧洲大4倍。 正译：亚洲比欧洲大3倍。 评析：亚洲面积4400万平方公里，欧洲面积1016万平方公里。因此亚洲应该是欧洲面积的四倍，即亚洲比欧洲大3倍。 [2] Sound travels nearly 3 times faster in copper than in lead. 声音在铜中的传播速度几乎比在铅中快2倍。 评析：声音在铜中的传播速度为2100m/s，在铅中在的传播速度为710m/s，可见声音在铜中的传播速度几乎是铅中的3倍，而不是比铅快3倍。 [3] The volume of the earth is 49 times larger than that of the moon. 地球的大小是月球的49倍。 或：地球比月球大48倍。 2) n times +形容词（或副词）原级+as [4] The oxygen atom is nearly 16 times as heavy as the hydrogen atom. 氧原子的重量几乎是氢原子的16倍。 评析：经查，氧原子的重量为，氢原子量为1。 [5] The mercury atom is about 5 times as heavy as calcium atom. 汞的原子重量大约为钙的5倍。 评析：经查，汞的原子量为，钙的原子量为。
英语中常见倍数的表达
浅谈英语中倍数的表达法 张贵元 一、在英语中,表示比较两个事物或人的大小、高低、长短、轻重等时,常用“倍数”来表达,如“甲是乙的几倍大(长、高、宽,,)”或“甲比乙大(长、高、宽,,)几倍”。表示“甲是乙的几倍”或“甲几倍于乙”时,常用以下三个句型。 句型I: A is+倍数（数词+ times）+as+adj./adv. (原级)+as+(比较对象)B 这个句型常用来表示A是B的多少倍。 1.This room is three times as big as that one.这个房间是那个房问的三倍大。 新技术被引进之后，这家工厂1988年生产拖拉机的产量是前一年的两倍。 2. Asia is four times as large as Europe. 亚洲的面积是欧洲的四倍大。（或：亚洲的面积比欧洲大三倍） 3. This room is three times as big as that one. 这个房间是那个房间的三倍大。（或：这个房间比那个房间大两倍） 4. We can produce ten times as many TV sets now as we did ten years ago. 我们现在生产的电视机是十年前的十倍。（或：我们现在生产的电视机比十年前多九倍） 5. This tree is nine times as tall as that one. 这棵树的高度是那棵树(高度)的九倍。 6. This dictionary is five times as thick as that 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)的五倍。 句型II: (1) A is+倍数（数词+times）+adj./adv(比较级)+than+ (比较对象)B 这个句型常用来表示A比B多多少倍。 1. This street is three times longer than that one. 这条街道比那条街道长三倍。（或：这条街道是那条街道的四倍长） 2. The new method was over eight times more efficient than the traditional one. 新方法比传统方法效率提高八倍以上。（或：新方法是传统方法效率的九倍以上） 3. The meeting- room is four times bigger than yours. 这个会议室比你们的大四倍。（或：这个会议室是你们的五倍大） 4. Line AB is three times longer than line CD. 线段AB是(线段)CD的三倍。 5. My books are four times more than yours. 我的书比你的(书)多四倍。 6. This table is twice bigger than that one. 这张桌子比那张大两倍。 页 1 第 7. Tom has four times more money than I have. 汤姆的钱比我多四倍。 (2) A +is+ adj./adv(比较级)+than +(比较对象)B+ by十（数词+times）倍数
倍数表达法
英语倍数表示法 关于英语倍数表示法的文章很多，而且列举了一大堆的句型，让人看了眼花缭乱。在仔细地分析了各种句式后，实际上，英语倍数最大的特点是：先说“倍数”，再说“是谁的……”，“比谁的……”等。概括起来，英语倍数表示主要就三种句式。 1、倍数+比较级... (1) 倍数 as...as (意思是“A是B的几倍”。) I am twice as old as he. 我的年纪是他的两倍。 He earns twice as much as he used to. 他比往常多赚二倍的钱。 An ordinary subway train, approaching the station, can be twice as loud as the loudest jet. 发出的声音可能是喷射机的两倍。 She studies three times as hard as I. 她用功的程度是我的三倍。 This line is four times as long as that one. 这条线是那条线的四倍长。 We've produced twice as much cotton this year as ten years ago. 今年的棉花比十年前多了一倍。 He has got three times as many books as his sister. 他拥有的书的数量是他妹妹的三倍。 在比较级前，还可以用over，more than等表示“比……倍还要多”。例如： He is more than three times as rich as I. 他的财富是我的三倍还不止。 I am more than twice as old as he. 我的年龄是他的两倍还不止。 He studies more than three times as hard as I. 他用功的程度是我的三倍还不止。 He has collected more than three times as many stamps as I .他搜集的邮票是我的三倍还不止。
英语倍数的表达
倍数减少: （一）a is n times as small （light，slow，…）as b. a is n times smaller （lighter，slower，…) than b. 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]。 e.g. The hydrogen atom is near1y l6 times as light as the oxygen atom.氢原子的重量约为氧原子的1/16（即比氧原子约轻15/16）。 e.g. This sort of membrane is twice thinner than ordinary paper.这种薄膜比普通纸张要薄一半（即是普通纸厚度的1/2）。 注：当相比的对象b很明显时，than/as b常被省去。 （二）decrease n times/n--fold decrease by n times decrease by a factor of n 以上三式均译为：减少到1/n[或：减少(n-1)/n]。 decrease常被reduce，shorten，go／slow down等词替代。 e.g. Switching time of the new-type transistor is shortened 3 times.新型晶体管的开关时间缩短了1/3（即缩短到2/3）。 e.g. When the voltage is stepped up by ten times, the strength of the current is stepped down by ten times.电压升高9倍，电流强度便降低9/10（即90％）。 e.g. The equipment reduced the error probability by a factor of 5.该设备误差概率降低了4/5。 （三）there is a n-fold decrease/reduction…应译为：减至1/n [或：减少（n一1）/n]。 这个句型还有其它一些形式： e.g. A rapid decrease by a factor of 7 was observed．发现迅速减少到1/7。