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