领衔主演丨疯子
河南 昝亚娟
请看几个表示倍数的经典例如：
1. The population in and around San Francisco is now ten times more than it was in 1906. 现在，旧金山市区和郊区的人口已是 1906 年的十倍以上了。
2. In area it is about the same size as the USA (without Alaska), which has more than thirteen times as many people (as Australia). 从面积上讲，澳大利亚差不多和美国（不包括阿拉斯加）一般大，而美国的人口却是澳大利亚的 13 倍。
3. China is 22 times larger than Britain. 中国是英国的22倍还要多。
以上三个例句中, 句1和句3采用倍数+比较级+than状语从句
来表达倍数。再如：
4. line AB is 3 times longer than Line CD.
线段 AB 是线段CD 的3倍长。
除此以外, 英语中表达倍数的方法还有下列四种：
一、倍数 as+ 形容词/副词的原级+as+比较对象
5. Our room is twice as wide as hers.
我们房间的宽度是她的房间的两倍。
二、倍数+the +名词（width/length/breadth/size?）of +比较对象
6. The earth is 49 times the size of the moon.
地球是月亮大小的49倍。
三、倍数/分数 as much/many名词as+状语从句（如例句2）
7. Mary has half as many books as John (does).
玛丽的书是约翰的一半。
8. We've produced twice as much cotton this year as we did last year.
我们今年生产的棉花比去年多了一倍。
四、表示“和?相同，与?一样”，可用the same+名词(size/age) 如例句2。再如：
She is the same age as me.(== She and I are the same age.)
她和我同岁。
1. The house rent is expensive. I’ve got about half the space I had at home and I’m paying
here. (上海2003)
A. as three times much C. much as three times B. as much three times D. three times as much
2. At a rough estimate, Nigeria is _____ Great Britain. (05 上海)
A. three times the size as B. the size three times of
C. three times the size of D. three times as the size of
3. Ten years ago the population of our village was_________ that of theirs. （08陕西）
A. as twice large as B. twice as large as
C. twice as much as D. as twice much as
4. Peter’s jacket looked just the same as Jack’s, but it cost ________his.（09辽宁）
A. twice as much as B. as much twice as
C. much as twice as D. as twice much as
5. Americans eat ________ vegetable per person today as they did in 1910.
A. more than twice B. as twice as many
C. twice as many as D. twice as much
6.With the help of the German experts，our factory produced ______ cars in 2012 as the year before.
A. as twice many B. as many twice
C. twice as many D. twice many as
Keys: 1--3 DCBA D C
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
倍。
In this workshop the output of July was 3.5 times that of January. 七月份的产量是元月份的
3.5 倍。
The principal advantage of the products is a two-fold reduction in weight. 这些产品的主要优点是重量减轻了2倍。
I ’ve paid five times the usual price for the stamp. 我出了5倍于往常的价格买这枚邮票。 The average income of the staff has been increased by 50 percent compared with last year.职工的收入增加了50%.
A survey shows that coverage rates have increased by from two-fold to four-fold. 调查表明，覆盖率已由两倍增至四倍。
除掌握倍数表达的三个常规句型外，我们更要注意的是其常规句型的变形及其特殊规律。
四、常规倍数句型的变形（共七种）
一） 倍数+times+more+名词（可数，不可数）+than?
There are five times more books in our library than in yours.我们图书馆里的书比你们图书馆里的书多五倍。
We have produced twice more grain this year than we did last year.我们今年生产的粮食是去年的两倍。
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。
二） 倍数+times as many/much+名词+as?as
There is four times as much water in this pot as in that one.
There are six times as many students as we expected.
He earns twice as much as he used to. 他比往常多赚二倍的钱。
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。 She spent half as much money as you. 她花掉的钱只有你花掉的一半。
需要时还可以在倍数词前，加over ，more than等表示“是??的多少倍还要多”。例如：
China is more than three times as rich as it used to. 中国的财富是过去的三倍还不止。 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。
三）倍数+times over+被比对象，表示“增加??倍”
The price of TVs are twofold down over these years.近几年来，电视机的价格下降了两倍。
四） ?times+that of+被比对象，表示“是??倍”
The grain output in that village is twice over that of 2002.
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 ％。
In this workshop，the output of July was 4.5 times that of January.
五）?times+compared with +被比对象
...by +倍数词
The number of the students in our school has increased 4 times
compared with 1980.我们学校的学生人数比1980年增加了三倍。
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。(使用by...)
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 3 倍。(使用 compared with)
His speed is faster than mine by four times.他的速度比我的快 4 倍。
The production of steel has been increased to three times compared with last year. 钢铁的产量比去年增加了两倍。
六）英语中有些词表示特定的倍数，例如： again (一倍),two-fold ，twice, double (两倍), triple (三倍), fourfold (四倍) 等数。
My Aunt is as old again as I am. 我姑姑的年龄比我大一倍。
She has as much again experience as I.她的经验比我的多一倍。
The top-brand clothes are often sold as double the normal price here. 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。
七） ?times+what+从句
The production is now three times what it was ten years ago.
英语中表示倍数的单词
英语中表示倍数的单词
Double 、treble 、triple 、quadruple 这四个词在英语中用来表达不同的倍数，均可以做名词、动词、形容词和副词，用法很灵活。其中，treble 和 triple 都是“三倍”的意思，大部分情况下可以互换使用，不过在日常生活中，triple 的使用频率更高一些，而 treble 还有“男童高音、最高音部”的意思。节目中我们会通过这四个词的常用意思来为大家举例讲解。
1、关于英语中关于倍数的表达问题，quarter 来自于拉丁语，的确有“四倍”的意思，但在现代英语中，这个词很少用，所以我们主要对 double 、treble 、triple 和 quadruple 进行讲解。这些词在英语中用来表达不同的倍数，其中，treble 和 triple 都是“三倍”的意思，大部分情况下可以互换使用，只不过 triple 的使用频率更高一些，treble 还有“男童高音、最高音部”的意思。Quadruple 表示“四倍”的意思。这几个词都可以做名词、动词、形容词和副词，用法很灵活。
2、我们先从 double 开始，这个词表示“两倍、双份”或“使（什么）增加一倍”。来听几个例句。
Examples
I booked a double room for only 100 yuan.
我订了一个双人间，只花了100块。
The editor thinks they can double the magazine circulation by the end of the year. 主编觉得他们能在年底把杂志发行量增加一倍。
I always have a double espresso in the morning.
我早上总是喝双份浓缩咖啡。
Thirty is the double of fifteen.
30是15的两倍。
Feifei
另外，单词 double 在影视领域还指“替身演员”。比如这个例句。
Example
He worked as a double for Daniel Craig in the film.
他在这部影片中担任丹尼尔·克雷格的替身。
3、接下来，我们说说 treble 和 triple 。这两个词都表示“三倍，增加两倍”，可以互相替换。在日常用语中，triple 的使用频率要高于 treble 。值得一提的是，在美式英语中，表达“三倍”只用 triple ，treble 只用来表示“男童高音、最高音部”。我们来听几个例句。
Examples
My rent trebled last month.
上个月，我的房租涨了两倍。
Her son has a fine treble voice.
她儿子的高音很美。
The company can triple its earnings after the acquisition.
这次收购以后，公司的收入能增加两倍（也就是原来的三倍）。
One is supposed to receive triple pay for working on public holidays.
在节假日加班应该得到三倍工资。
4、quadruple 。这个词表示“四倍，四部分，增加三倍”的意思，词性和用法与前面的 double 和 triple 相似。需要注意的是，“增加三倍”其实也就是中文中常说的“翻两番”，所以这两种说法都可以用 quadruple 来表示。我们来听两个例句。
Examples
Our exports to the US have quadrupled in the past three years.
过去三年间，我们对美国的出口额增加了三倍（也就是翻了两番）。
The suspect of the quadruple murder was arrested yesterday.
那四宗谋杀案的嫌疑犯昨天被逮捕了。
英语倍数的表示
英语的倍数表达法(略)
1."A + be + 倍数 + as + 计量形容词原级 + 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 + 计量形容词比较级 + 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。
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.其它
I'm twice/ double his age. 我的年龄是他的两倍。
I've paid five times the usual price for the stamp. 我出了5倍于往常的价格买这枚邮票。
The average income of the staff has been increased by 50 percent compared with last
year. 与去年相比，该单位职工的收入增加了50%.
The price of TVs are twofold( adj. 两部分的, 双重的) down over these years. 近几年来，电视机的价格下降了两倍。
英语的倍数表达法(详)
1. “A+倍数+形容词或副词的比较级+than+B”，表示“A比B大(长、高、宽
等)多少倍”。如:
This rope is twice longer than that one. 这根绳子是那根绳子的两倍长(比那根
绳子长一倍)。
This hall is five times bigger than our classroom. 这个大厅比我们的教室大四
倍(是我们教室的五倍)。
1
The car runs twice faster than that truck. 这辆小车的速度比那辆卡车快一倍(是那辆卡车的两倍)。
2.“A+倍数+as+形容词或副词的原级+as+B”，表示“A正好是B的多少倍”。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。
3. “A+倍数+the size/height/length/width, etc+of+B”，表示“A正好是B的多少倍”。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。
除掌握倍数表达的三个常规句型外，我们更要注意的是其常规句型的变形及其特殊规律。
一. 常规句型的变形
1. “ ... times+more+名词(可数或不可数)+than+被比对象”。如:
There are five times more books in our library than in yours. 我们图书馆里的书比你们图书馆多四倍。
We have produced twice more grain this year than we did last year. 我们今年生产的粮食是去年的两倍。
2. “ ... times as many/much+名词+as+被比对象”。如:
There is four times as much water in this pot as in that one. 这个壶里装的水是那个壶里的四倍。
There are six times as many students as we expected. 学生数量是我们预期的六倍。
2
3.“ ... times+over+被比对象”。如:
The grain output in that village is twice over that of 2002. 那个村的粮食产量是2002年的两倍。
4. “ ... times+that+of+被比对象 ”。如:
In this workshop, the output of July was 4.5 times that of January. 这个车间7月份的产量是1月份的4.5倍。
5. “...times+compared with+被比对象”。如:
The number of the students in our school has increased 4 times compared with
1980. 我们学校的学生人数比1980年增加了三倍。
6. “...times+what+从句”。如:
The production is now three times what it was ten years ago. 现在的产量比十年前增加了两倍。
二. 倍数/百分数(percent)+compared with/up on +被比对象。如:
Our factory ' s output of TV sets in the first six months of this year was 10% up
compared with last year. 今年头六个月我们厂电视机的产量与去年相比增加了10%。
The industrial output of last year in our factory was 35% up on that of 2001. 我们厂去年的工业产量比2001年增加了35%。
三. 用double表示倍数
1. double用作形容词，表示“两倍的”。如:
The production is now double what it was ten years ago. 现在的产量是十年前的两倍。
2. double用作动词，表示“是……的两倍。如:
The output has been doubled in the past six years. 在过去六年中产量已经翻了一番。
This brought a steady rise in the grain yield. In 2002 it nearly doubled that of
1980. 这使粮食产量不断增长，到2002年产量已经比1980年翻了一番。
3
英语倍数表示法
一 倍数的表示方法 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. 还可以用by倍数，表示增
加多少倍 The production of grain has been increased by four times this year. 今年粮食
产量增加了4倍。 This book is three times as long as (three times longer than/three
times the length of)that one.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 times,n-fold increase by n times I ncrease by a factor of n
以上四式均应译为:增加到n倍 或:增加n-1倍。1. 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。2. 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。3. 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)。4.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 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.这些机器的效率已提高了2倍或3倍
多。四 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， 1ong，…)as B.应译为:A比B多(大，
长……)一半(即A是B的一倍半)。1.Staying in a hotel for a few days costs___ _ renting in the country for a week A more twice than B twice as much as C as much as twice D as much twice as2. Americans ____vegetables per person today as they did in 1910.A more than twice B as twice as manyC twice as many as D more than twice as many3. Paper produced every year is ___ the world’s production of vehicles.A the three weight of B three times weight ofC as three times heavy of D three times as heavier of4. This ship measures _____that one.A as twice as long B as twice long asC twice long as D twice as long as5 After the new technique was introduced the factory produced _____tractors in 1988 as the year before.A as twice many B as many asC as twice as many D twice as many 几个并列的形容词作定语，其语序通常为:限定语(The、A This)数量词two)
描绘性形容词beautiful good strong size(大小big) shape(形状round) age(年
龄、时间new young) color ( 颜色) origin(国籍、来源) material (材料) purpose
(用途目的) 名词。如:a heavy black Chinese steel umbrellathe man’s first tow
interesting little red French oil paintings 可以按这种方法记忆:限数描，形(大小 形
状)龄色，国材用1. Everything was very expensive. I didn’t buy ____fruit but I’ve got some _____apples. A. any big red B. any red bigC. much big red D. some red bigHe likes going fishing. He usually uses a______.A. bamboo long fishing poleB. long bamboo fishing poleC. pole long bamboo and fishing D. bamboo fishing long pole3. My friend Paul was cheated when he paid 1000 for second-hand car it was not worth ______. A. that all much B. all that much C. that much all D. much all that4. Mrs. White. bought a _____ wallet for her husband. A. black leather small B. small leather black C. black small leather D. small black leather5 ,How was your recent visit to Qingdao ,It was great.
We visited some friends and spent the ______days at the seaside. A. few last sunny B.
last few sunny C. last sunny few D. few sunny last6. John Smith a successful businessman has a ______car. A. large German white B. large white German C. white large German D. German large white7. ______ students are required to take part in the boat race. A. Ten strong young Chinese B. Ten Chinese strong young C. Chinese ten young strong D. Young strong ten Chinese8. The _____house smells as if it hasn’t been
lived in for years. A. little white wooden B. little wooden white C. white wooden little D. wooden white little一、 简单句中的省略1. 不定式的省略 如果不定式所表示的内容
在上文中已经出现，则把重复的动词及 后续部分省略，而只保留to。不定式的省略
有以下几种情况:1 在hope like try want wish expect tell ask advise refuse afford agree forget manage would like等后作宾语时。如: At that time black people had no right to
vote in the southern states. If they wished to have the right to vote in the southern states they had to pass a reading test.2 当不定式在某些形容词如glad afraid anxious happy
pleased delighted eager ready willing等之后作状语时， to后的内容常承前省略。如:
—Would you give me a lift to the airport—Yes I’d be glad to(give you a lift to the
airport). 3 在want allow permit persuade tell invite等动词后作 宾语补足语时，或在
其被动结构后作主语补足语时。如:She didn’t come though we had invited her to
come.Why did you use your cell phone in schoolYou were told not to use your cell phone in school.
