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1、英语倍数的表达方法,郭之政,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 + BThis 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。,1.亚洲的面积是欧洲的四倍。 Asia is four times as large as Europe.2.这块大石头的重量是那块的三倍。 This big stone is three
2、 times as heavy as that one. 3.那架飞机的飞行高度是那只风筝的十倍。 The plane flew ten times as high as the kite.,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。,这根绳的长度是那根绳
3、的三倍。这个大厅比我们的教室大五倍。这辆小车的速度比那辆卡车快两倍。,This rope is twice longer than that one This rope is three times as long as that one.,This hall is five times bigger than our classroomThis hall is six times as big as our classroom,The car runs twice faster than that truckThe car runs three times as fast as that t
4、ruck,（比那根绳长二倍）,（是那辆卡车的三倍）,（是我们教室的六倍）,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 weight of ,倍数+the width of
5、 ,倍数+the depth of ,1.这条街是那条街的四倍长。 This street is four times the length of that one. 2.这座山的高度是那座小山的四倍。 This hill is four times the height of that small one.,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。,H
6、e earns five times more money than he did ten years ago.他现在挣的钱比他十年前挣的多五倍。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 + more + 名词+ than ”,There are four times more books in our library than in yours我们图书馆藏书（数量）比你们图书馆藏书多四倍。 （我们图书馆的藏书是你们的五倍）We have produced twic
7、e more grain this year than we did last year我们今年生产的粮食比去年增长了两倍。（是去年的三倍）,6. “ A + be +倍数+as many（或much）+名词+其他+as ”,After the technique was introduced，the factory produced twice as many tractors in 1988 as the year before采用新的技术以后，那个工厂1988年生产的拖拉机是前一年（1987年）的两倍。（比前一年增长一倍）There is three times as much wate
8、r in this pot as in that one这个壶里的水（量）是那个壶里的三倍。,Weve 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。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。,7. “ times + what 从句”The length of the road is four times what it was three years ago. 这条路的长
9、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。,8. “ + by times ”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. 他的速度比我的快 4 倍。,9.“ times + compared with+ 被比较对象”The number of the students
10、 in our class has increased four times compared with 1980.我们学校的人数比1980年增加了4倍。,10.“ times + up on （或 over ） ”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）。,11.“ times + that of+被比较对象”In this workshop the outpu
11、t 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。,二、用分数、百分数表示倍数,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 。,The average income of the staff has been increased by 50 percent c
12、ompared with last year.,与去年相比，该单位职工的收入增加了50%.,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。,My Aunt is 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
13、经常比正常的售价高一倍。Im twice/ double his age. 我的年龄是他的两倍。,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。Ive 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 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。,
