12种倍数表达法
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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 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。
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 three 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 + 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 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 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。