用英語表示倍數的五種方法

如果要用英語表示A是B的多少倍，可以考慮用以下方法：

方法一：數字 + times + as + 原級 + as +比較對象

It cost three times as much as I had expected. 它花的錢比我預期的多兩倍。

Cats sleep twice as much as people. 貓睡覺的時間比人長一倍。

Unemployment among blacks was twice as high as that for white. 黑人的失業人數是白人的兩倍。

New drivers have twice as many accidents as experienced drivers. 新駕駛人所出的事故是老駕駛人的兩倍。

There is an entrance hall of perfect proportions, twice as long as it is wide. 有一處比例堪稱完美的門廊，長是寬的兩倍。

方法二：數字 + times + the size / length / depth / height / width / quantity / amount / etc+ of +比較對象

Their house is twice the size of ours. 他們的房子是我們的兩倍大。

The queen bee is twice the length of a worker bee. 蜂王的體長為工蜂的兩倍。

Many are holding out for ten times the price. 許多人堅持索要10倍于該價格的價錢。

This room is twice the length of the other, but much narrower. 這個房間的長度是那個房間的兩倍，但窄得多。

Concorde crosses the Atlantic at twice the speed of sound. 協和飛機以兩倍于聲速的速度飛越大西洋。

The soil contains 30 times the acceptable level of radioactivity. 這片土壤受到了高于標準30 倍的輻射。

Air pollution in the city had reached five times the acceptable levels. 這座城市的空氣污染程度曾高達可接受標準的四倍。

比較同義句：

He eats twice the amount that you eat.= He eats twice what you eat. 他比你多吃一倍。/

This box is twice the size of that one.= This box is twice as large as that one. 這個盒子是那個盒子的兩倍。

方法三：數字 + times + 比較級 + than + 比較對象

She’s a zillion times brainier than I am.  (www.cpsenglish.com) 她比我聰明億萬倍。

She can walk three times further than you.  他能比你多走三倍的路。

This room is three times larger than that one. 這個房間比那個房間大兩倍。

It was ten times more difficult than I expected. 這事比我預想的要困難十倍。

It took three times longer I had expected. 這件事比我預料的多花了兩倍的時間。

Its profits are rising four times faster than the average company. 它的利潤增長速度比一般公司快4倍。

Young people were several times more likely to be out of work than older members of the workforce. 勞動人口中，年輕人失業的可能性是年長者的好幾倍。

Carrying goods by train costs nearly three times more than carrying them by barge. 通過鐵路運貨的成本比駁船運貨成本高出近3倍。

Premature birth is three times more likely for twins, and delivery at 36 to 38 weeks is normal.  雙胞胎的早產率要比一般的高出兩倍，在36到38周之間分娩很正常。

The new method was ten times more efficient than the traditional one. 新方法比傳統方法的效率提高了10倍。

方法四：將數字與-fold連用構成形容詞或副詞

This is a ten-fold increase in five years. 在5年中翻了10倍。

The population in this area has increased fourfold. 該地區的人口已增加到原來的4倍。

The reasons for the delay are three fold. 延誤的原因有三。

要注意正確理解threefold, fourfold, fivefold等的意思，如fourfold的意思是four times as much or as many，譯成漢語是“4倍(的)”：

The value of the house has increased fourfold since 1939. 房價自1939年以來增加到原來的4倍(或：房價自1939年以來增加了3倍)。

方法五：其他方法

His income is double hers. (www.cpsenglish.com) 他的收入是她的兩倍。

Capital expenditure was treble the 2002 level. 資本支出是 2002 年的三倍。

The volume of traffic has grown by a factor of four. 車流量已是原來的4倍。

The amount of alcohol in his blood was triple the legal maximum. 他血液中的酒精含量為法定最高限量的三倍。

Sales have quadrupled in the last five years. 過去五年中，銷售額已增長四倍。

This year we produced quadruple the amount produced in 2002. 我們今年的產量是 2002 年的四倍。

We need double the amount we already have. 我們需要現有數量的兩倍。

The money they were asking for was triple the amount we expected. 他們要的錢數是我們預期的3倍。

The driver was more than seven times over the legal limit (= the amount of alcohol you are allowed to have in your body when you are driving). 那名司機體內的酒精含量超過了法律允許限度的三倍。

The amount of reclaimed glass used in industry has doubled in the last five years. (www.cpsenglish.com) 用在工業上的再生玻璃的數量在過去5年內增加了1倍。