英语倍数的表达方法(英语倍数的表达规律)

英语倍数的表达规律英语里表示倍数增减的方式很多,比较常用的有以下几种,我来为大家讲解一下关于英语倍数的表达方法?跟着小编一起来看一看吧!

英语倍数的表达方法(英语倍数的表达规律)

英语倍数的表达方法

英语倍数的表达规律

英语里表示倍数增减的方式很多,比较常用的有以下几种。

1.用"倍数 as 副词(形容词) as"句型表示。翻译这类句子时,可设句子中的倍数为X, 含有增加意义的句子可译成"A是B的X倍"或"A比B高、快、多、大 X-1倍; 含有减少意义的句子可译成"A是B的1/X"。例如:

This room is twice as big as that one.

这间房子是那间房的2 倍大。/这间房比那间房大一倍。

You run twice as slow as I.

你跑的速度是我的1/2.

This box is three times as heavy as that one.

这个箱子有那个箱子的3倍重。

2.用"as 副词(形容词) as 数字"句型表示。在这类句型中,含有增加意义的句子看可按"高(多、长)达 句中数字"的方法译出,含有减少意义的句子可按"低(少、短)达 句中数字"的方法进行翻译。

The mountain is as high as 7000m.

这座山高达7000米。

The area of the smallest country in the world is as small as 0.44 square kilometers.

世界上最小国家的面积小至0.44平方公里。

3.用"倍数 the size (length, height等) of "表示。用法与句型1相似。

Shanghai is about four times the size of Changsha. (= Shanghai is about four times as large as Changsha.)

上海大约有长沙的4倍那样大。

In this workshop the output of July was 3.5 times that of January. (= In this workshop the output of July was 3.5 times as much as that January.)

这个车间7月份的产量是一月份的3.5倍。

4.用"倍数 比较级 than"句型表示,表示"增加了(减少了) 句中数字"。

This reservoir is three times larger than that one.

这个水库比那个水库大3倍。

The sun is a million times larger than the earth.

太阳比地球大100万倍。

5."increase (decrease, reduce ) by 数字(倍数)"。这种句型,可按by 后表示的净增减的数或倍译出。

The prime cost decreased by 60%.

主要成本降低了60%。

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。

6. "increase (decrease, reduce ) to 倍数" 为增或降至X倍。

The number of the students has increased to three times.

学生人数增加到3倍。

The price of rice has reduces to two thirds.

大米的价格降到原价的2/3.

7."倍数 upon (over)",意为 "超过X倍"。

The industrial output in our factory this year is ten times over that of 2001.

今年我们工厂的产量比2001年增加了10倍。

He is three times upon your age.

他的年龄是你的4倍。

8. "exceed (increase, decrease, reduce ) by a factor of 倍数"可译为"增加了x-1倍"或"减少至原来的1/X".

This speed exceeded the average speed by a factor of 2.5.

该速度超过平均速度的1.5倍。

This equipment will reduce the error probability by a factor of 5.

这种设备使误差率降到原来的1/5.

9."倍数 what -从句"表示"为……的……倍"

They turned out 400 kinds of products with a total value more than 42 times what it was in 2010.

他们生产了400种产品,总产值为2010年的42倍多。

在使用上述句型时,还应注意以下几点:

1) 在表示"2倍"时,不能用two times. 除twice 外,还可用double, as…again as 等。

He demanded double the usual fate.

他要了比平常多1倍的路费。

A is as long again as B.

A 的长度是B的2倍。

2) 在表示"3 倍"时,除可用three times外,还可用动词treble 或triple等表示。

The grains in the area have trebled this year.

今年这个地区的粮食增加了2倍。

In agriculture, the number of farms in the United States tripled between 1960 and 1910.

在农业方面,1910年美国的农场数目是1960年的3倍。

3) 在表示"4倍"时,或4倍以上时,除用"基数词 time"外,还可用"基数词 fold"的合成词。

We have produced four-fold as many electric fans as we did last year.

本年我们生产的电扇数量相当于去年的4倍。

During that period its total output of industry increased (to) ten-fold.

在那个时期,工业总产值增加了9倍。

4) 在表示"不到1倍"时,还可用"分数 as…again as "表示。

A is half as much again as B.

A比B多一半。

A is two-thirds as heavy again as B.

A比B重2/3.

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