英語中表示倍數(shù)的常見句型

英語中表示倍數(shù)的常見句型乘數(shù)表達法是高中英語教學(xué)的重點，也是歷代高考的熱點。表達甲是乙的多少倍時，通常使用以下三種句型。I .“復(fù)數(shù)形容詞(或副詞)的比較than子句”表示a比b大多少(長度、高度、寬度等)This rope is twist longer than one。這根繩子是那根繩子的三倍(比那根長兩倍)。the car runs twice faster than that truck .這輛車比那輛卡車快兩倍(那輛卡車的三倍)。this street is four times shorter than that one。這條街比那條短四倍。the mother elephant is one hundred times heavier than the baby elephant。這只母象比大象重100倍。It is ten times louder than another。比其他聲音大10倍。this street is three times wider than that one .這條街比那條街寬三倍。I am twice older than he。我比他大兩倍。The box is one-third bigger than one。這個箱子比那個箱子大三分之一。二、“形容詞或副詞的原as子句”表示a正好是b的幾倍。Asia is four times as large as europe。亞洲地區(qū)是歐洲的兩倍。the plane flexon times as high as the kite。這架飛機的飛行高度是風(fēng)箏的10倍(9倍以上)I am twice as old as he .我是他年齡的兩倍。she stuies three times as hard as I .她努力學(xué)習(xí)了三倍左右。this line is four times as long as that one .這條線是那條線的四倍長。An ordinary train，approaching the station，can be twice as loud as the loudest jet。一般列車進站時發(fā)出的聲音可能是噴氣式飛機的兩倍。我的command of English is not half so good as yours。我的英語還不到你的一半。第三，“尺寸/高度/長度/寬度，etc .of”表示a正好是b的幾倍。this street is four times the length of that one .這條街是那條街的四倍。this hill is four times the height of that smallone .這座山的高度是那座山的4倍(比那座山高3倍)line a is four times the length of line b . line a是線b的4倍長。I have five times the number of Tom s books .我有湯姆的5倍的書。the river is ten times the length of the tam sui river。這條河的長度是淡水河的10倍。it was over twence the distance of the earth from the sun。是地球到太陽距離的兩倍多。the earth is 49 times the size of the moon .地球的體積是月球的49倍。this river is three times the depth of that one .這條河的深度是那條河的三倍。下面也可以看作是這個句型的變化：the length of the road is four times what it was three years ago。這條路的長度是三年前的四倍。the price of the meat is twist what it was last year。肉類價格是去年的兩倍。the size of the sun is a million times over that of the earth .太陽的體積比地球的體積大一百萬倍。in this workshop the output of July was 3.5 times that of January .7月的產(chǎn)量是元月份的3.5倍。the principal advantage of the products is a two-fold reduction in weight。這些產(chǎn)品的主要優(yōu)點是重量減少了兩倍。I ve paid five times the usual price for the stamp。我出的這張郵票比平時的價格多5倍。the average income of the staff has been increassed by 50 percent compared with last year。員工收入增加了50%。a survey shows that coverage rates have increassed by from two-fold to four-fold .調(diào)查顯示，復(fù)蓋范圍從2倍增加到4倍。除了掌握三個一般的句型外，我們還要更加注意其正規(guī)句型的變形及其特殊規(guī)律。四、現(xiàn)有排水句型的變體(共7個)a)倍數(shù)times more名詞(可數(shù)，不能數(shù))than .there are five times more books in our library than in yours。我們圖書館的書比你們圖書館的書多5倍。we have produced twence more grain this year than we did last year。我們今年生產(chǎn)了兩倍于去年的糧食。he earns five times more money than he did ten years ago。他現(xiàn)在掙的錢比10年前賺的多5倍以上。there are twence more students in our class than in theirs。我們班的學(xué)生人數(shù)比他們的班多一倍多。2)倍數(shù)times as many/much名詞as.asthere is four times as much water in this pot as in that one。there are six times as many students as we expected。He earns twice as much as he used to他賺的錢比平時多兩倍。weve producted twice as much cotton this year as ten years ago。今年棉花比10年前多了兩倍。he has got three times as many books as his sister。他擁有的書的數(shù)量是他妹妹的三倍。shespent half as much money as you。她花的錢只有你花的一半。如有必要，排水溝前的黃貂魚，更than等說：是的.也可以指“還需要幾倍”。例如：China is more than three times as rich as it used to .中國的財富是過去的3倍以上。I am more than twice as old as he。我的年齡是他的兩倍多。he studies more than three times as hard as I .他學(xué)習(xí)比我努力3倍以上。he has collected more than three times as many stamps as I .他收集的郵票是我的三倍多。3)倍數(shù)timestaver比對象“增加”.船”the price of TVs are two fold down over these years。最近幾年，電視價格下降了一倍。(4) times that of比對象顯示“是.船”的意思the grain output in that vilage is twist over that of 2002。last year the output value of industry was 59 percent higher that of 1976。去年工業(yè)產(chǎn)值比1976年增長了59%。In this workshop，the output of July was 4.5 times that of January。5) times compared with比較對象.by乘數(shù)詞the number of the students in our school has increated 4 timesCompared with 1980。我們學(xué)校的學(xué)生人數(shù)比1980年增加了3倍。Compared with last year，our cool output has increated by three times。我們的煤產(chǎn)量比去年增加了三倍。(使用by.）the number of the students in our school has increated four times compared with 1980。我們學(xué)校的學(xué)生人數(shù)比1980年增加了3倍。(使用compared with)他的speed is faster than mine by four times。他的速度比我快四倍。the production of steel has been increassed to three times compared with last year。鋼的生產(chǎn)量是去年的兩倍多。6)英語中有一些詞表示特定倍數(shù)，如again(兩倍)、two-fold(前)、twist(后)、double(兩倍)、triple(三倍)和fourfold(四倍)我姑姑比我大兩倍。She has as much again experience as i .她的經(jīng)驗是我的兩倍。the top-brand clothes are often sold