這種用法是對(duì)的
用英語(yǔ)表達(dá)“A 是 B 的 N 倍長(zhǎng)（寬,高,大,重等）”,“A 比 B 長(zhǎng)（寬,高,大,重等）N 倍” 或“A 的長(zhǎng)度（寬度,高度,大小,重量等）是 B 的 N 倍”,可用下列幾種句型.
1.“A + be + 倍數(shù) + as + 計(jì)量形容詞原級(jí) + as + B”.
This tree is three times as tall as that one.
這棵樹(shù)是那棵樹(shù)的三倍高.
His father is twice as old as he.
他父親的年紀(jì)有他兩倍大.
2.“A + be + 倍數(shù) + 計(jì)量形容詞比較級(jí) + than + B ”
The Yangtze River is almost twice longer than the Pearl River.
長(zhǎng)江差不多比珠江長(zhǎng)兩倍.
The dictionary is exactly five times more expensive than that one.
這本字典比那本恰好貴5倍.
3.“A + be + 倍數(shù) + the + 計(jì)量名詞 + of + B ”
The newly broadened square id four times the size of the previous one.
新擴(kuò)建的廣場(chǎng)是未擴(kuò)建時(shí)的四倍大.
4.“The + 計(jì)量名詞 + of + A + be + 倍數(shù) + that + of + B ”
The size of the newly broadened square is four times that of the previous one.
新擴(kuò)建的廣場(chǎng)為以前的四倍大.
5.其它I‘m twice/ double his age.我的年齡是他的兩倍.
I‘ve paid five times the usual price for the stamp.
我出了5倍于往常的價(jià)格買(mǎi)這枚郵票.
The average income of the staff has been increased by 50 percent compared with last year.
與去年相比,該單位職工的收入增加了50%.
The price of TVs are twofold（ adj.兩部分的,雙重的） down over these years.
近幾年來(lái),電視機(jī)的價(jià)格下降了兩倍.
一、用times表示倍數(shù)（一般限于包括基數(shù)在內(nèi)三倍或三倍以上的數(shù).表示兩倍的數(shù),一般twice.）.其句型有：
1.times＋形容詞（副詞）比較級(jí)＋than...
This hall is five times bigger than our classroom.這個(gè)大廳比我們的教室大五倍.（是我們教室的六倍大）
The car runs twice faster than that truck.這輛轎車(chē)的速度比那輛卡車(chē)快兩倍.（是那輛卡車(chē)的三倍快）
2.times＋as＋形容詞（或much）或副詞原級(jí)＋as...
The big box is four times as heavy as the small one.大箱子是小箱子的四倍重.
Asia is four times as large as Europe.亞洲的面積是歐洲的四倍.
Ten is twice as much as five.十是五的兩倍.
The plane flew ten times as high as the kite.那架飛機(jī)飛行高度是那個(gè)風(fēng)箏的十倍.（高出九倍）
3.times＋the＋名詞（size,height,weight,length,width）＋of
Your playground is 900 metres wide,three times the size of ours.你們操場(chǎng)有900米寬,是我們的三倍.
This street is four times the length of that one.這條大街是那條街的四倍長(zhǎng).
This big tree is four times the height of that small one.這棵大樹(shù)的高度是那棵小樹(shù)的四倍.（比那棵小樹(shù)高三倍）
也可譯成:The height of the big tree is four times that of that small one.
4.times＋more＋名詞（可數(shù),不可數(shù)）＋than...
There are four times more books in our library than in yours.我們圖書(shū)館藏書(shū)（數(shù)量）是你們圖書(shū)館的四倍.（多三倍）
We have produced twice more grain this year than we did last year.我們今年生產(chǎn)的糧食比去年增長(zhǎng)一倍.（是去年的兩倍）
5.times ＋as many（或much）＋名詞＋其它……
There is three times as much water in this pot as in that one.這個(gè)壺里的水（量）是那個(gè)壺里的三倍.
There are five times as many students as we expected.到的人是我們預(yù)計(jì)的五倍.
6.times＋over＋被比對(duì)象表示“增加……倍”.如:
The grain output in that village was twice over that of 1978.那個(gè)村的糧食產(chǎn)量比一九七八年的增加了兩倍.
7.times＋thatof＋被比對(duì)象“是……倍”.如:
In this workshop,the output of July was 3.5 times that of January.這個(gè)車(chē)間七月份的產(chǎn)量是元月份的三點(diǎn)五倍.
二、用...％（percent,per cent）＋up on＋被比對(duì)象
Altogether,more than 70 percent of the surface of our planet is covered by water.
我們地球的表面百分之七十以上被水覆蓋.
Our factory's output of TV sets in 1998 was 400％ up compared with 1980.1998年我們工廠電視機(jī)的產(chǎn)量與1980年相比增長(zhǎng) 400％.
The industrial output of last year in our factory was 250％ up on that of 2000.我們工廠去年的工業(yè)產(chǎn)量比2000年增加了 250％.（或增加兩倍半）
三、用double表示倍數(shù)
1.double作形容詞,“兩倍的”.如:
The production is now double what it was ten years ago.現(xiàn)在的產(chǎn)量是十年前的兩倍.
2.double作動(dòng)詞,“是……的兩倍”.如:
The output has been doubled in the past five years.過(guò)去五年中產(chǎn)量翻了一番.