英語中倍數(shù)的常用表達(dá)方式

1、-作者xxxx-日期xxxx英語中倍數(shù)的常用表達(dá)方式【精品文檔】英語中“倍數(shù)”的常用表達(dá)方式一、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)，一般用 twice ）。其句式有：(前三種為主)1. “ times 形容詞 / 副詞的比較級 than ”例如：Line AB is three times longer than line CD.線段 AB 是（線段） CD 的三倍長。This hall is five times bigger than our classroom.這個大廳比我們的教室大 5 倍。This rope is twice longer

2、than that oneThis hall is five times bigger than our classroomThe car runs twice faster than that truck2. “ times +as + 形容詞 / 副詞的原級 as ”例如：This table is three times as long as that one.這張桌子是那張桌子的三倍長。This dictionary is five times as thick as the one you borrowed from the library.這本詞典的厚度是你從圖書館借的那本（厚度）

3、的 5 倍。Asia is four times as large as Europe 亞洲的面積是歐洲的四倍。 This big stone is three times as heavy as that one這塊大石頭的重量是那一塊的三倍。（這塊石頭比那塊重二倍） The plane flew ten times as high as the kite那架飛機(jī)飛行高度是那個風(fēng)箏的十倍。（高出九倍） 3. “ times + the + 名詞（如： size， height， weight， length， width, age等） of ”例如：The earth is 49 times

4、 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.這條河是那條河的三倍深。This street is four times the length of that street.這條街是那條街的四倍長。 This hill is four times the height of that small one這座山的高度是那座小山的四倍。（比那座小山高三倍）4. “ times + more 名詞 than ”例如：He earns five times more money

5、than he did ten years ago.他現(xiàn)在掙的錢比十年前掙的多 5 倍。There are twice more students in our class than in theirs.我們班的學(xué)生人數(shù)比他們班多兩倍。5. “ times +as many （或 much ）名詞 as ”例如：We've produced twice as much cotton this year as （ we did ） ten years ago.今年我們生產(chǎn)的棉花比十年前多了一倍。（漢語中的多一倍實際上也指兩倍一樣多。）He has got three times as m

6、any books as his sister.他擁有的書的數(shù)量是他妹妹的 3 倍。6. “ times + what 從句”例如：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 4 倍。The price of the meat is twice what it was last year.肉價是去年的兩倍。7. “ times + up on （或 over ）”例如：The size of the sun is a million times over that of the ear

7、th.太陽的體積比地球的體積大一百萬倍。He is three times up on your age.他的年齡是你的 4 倍（或：比你的年齡大 3 倍）。8. “ +by + times ”例如：Compared with last year， our coal output has increased by three times.與去年相比，我們的煤產(chǎn)量增長了 3 倍。His speed is faster than mine by four times.他的速度比我的快 4 倍。9. “ times + compared with 被比較對象”例如：The number of the

8、 students in our school has increased four times compared with 1980.我們學(xué)校的學(xué)生人數(shù)比 1980 年增加了4倍。10. “ times + that of + 被比較對象”例如：In this workshop the output of July was three times that of January.這個車間七月份的產(chǎn)量是元月份的 3 倍。二、用分?jǐn)?shù)、百分?jǐn)?shù)表示倍數(shù)。例如：The box is one-third bigger than that one.這個盒子比那個盒子大三分之一。Last year the

9、output value of industry was 59 percent higher than that of 1976.去年工業(yè)產(chǎn)值比 1976 年增長了 59 。My command of English is not half so good as yours.我英語掌握得還不及你的一半兒好。三、用 again （一倍）， double （兩倍）， triple （三倍）， fourfold （四倍）等詞表示倍數(shù)。例如：My Aunt is as old again as I am.我姑姑的年齡比我大一倍。The top-brand clothes are often sold

10、as double the normal price here.這里名牌衣服的售價經(jīng)常比正常的售價高一倍。The new work procedure tripled the output.新工藝使產(chǎn)量增加兩倍。The output of grain increased fourfold.糧食產(chǎn)量增加了三倍。鞏固練習(xí)1. （ 2002 上海春） Americans eat _ vegetables per person today as they did in 1910.A. more than twiceB. as twice as manyC. twice as many asD. mor

11、e than twice as many2. （ 1998 上海） Paper produced every year is _ the world's production of vehicles.A. the three weight ofB. three times the weight ofC. as three times heavy asD. three times as heavier as(heavier應(yīng)改為原級)3. （ 1994 上海） With the help of the German experts， the factory produced _ cars

12、 in 1993 as the year before.A. as twice many B. as many twiceC. twice as many D. twice many as4. （ MET 1992 ） This ship measures _ that one.A. as twice as longB. as twice long asC. twice long asD. twice as long as5. （ MET 1990 ） After the new technique was introduced， the factory produced _ tractors

13、 in 1988 as the year before.A. as twice manyB. as many asC. as twice as manyD. twice as manyKey： 1 5 DBCDD6. It is reported that the United States uses_energy as the whole of Europe. twice much much as as much答案是D7. The house rent is expensive, Ive got about half the space I had at home and Im payin

14、g _ here. (上海卷)A. as three times muchB. as much three timesC. much as three timesD. three times as much【分析】答案選D。倍數(shù)three times要放在as的前面，后面省略as I paid at home。8. With the help of the German experts, the factory produced _ cars in 1993 as the year before. (上海卷) A. as twice many B. as many as twice C. as

15、 twice as many D. twice as many【分析】答案選D。倍數(shù)放在as之前。此題與全國卷曾考過的一題幾乎一樣：9.The house rent is expensive. I've got about half the space I had at home and I'm paying _ here. （ 2003 上海）A. as three times muchB. as much three timesC. much as three timesD. three times as much該題的正確答案為 D .顯然本題是在考查倍數(shù)的表達(dá)法。例句1

16、.“A + be + 倍數(shù) + as + 計量形容詞原級 + as + B”。 This tree is three times as tall as that one. 這棵樹是那棵樹的三倍高。 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) + 計量形容詞比較級 + than + B ” The Yangtze River is almost twice longer than the Pearl River. 長江差不多比珠江長兩倍。 The dictionary is exactly five times mo

17、re expensive than that one. 這本字典比那本恰好貴5倍。 3.“A + be + 倍數(shù) + the + 計量名詞 + of + B ” The newly broadened square id four times the size of the previous one. 新擴(kuò)建的廣場是未擴(kuò)建時的四倍大。 4.“The + 計量名詞 + 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

18、擴(kuò)建的廣場為以前的四倍大。 5.其它Im twice/ double his age. 我的年齡是他的兩倍。 Ive paid five times the usual price for the stamp. 我出了5倍于往常的價格買這枚郵票。 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 ye

19、ars. 近幾年來，電視機(jī)的價格下降了兩倍。I am more than twice as old as he.我的年齡是他的兩倍還不止。I've seen this film twice.這部影片我已經(jīng)看過兩次了。 He studies more than three times as hard as I.他用功的程度是我的三倍還不止。I have five times the number of Tom's books.我有五倍于湯姆的書。He has collected more than three times as many stamps as I (have).他收

20、集的郵票是我的三倍還不止。 ten times as big十倍大的 He had classed the White Mouse as of no account, and it paid twenty times as much as the Transcontinental and also had paid on acceptance.他原把白鼠看得一文不值，可是他出的稿費卻比橫貫大陸月刊要大二十倍，而且一接受就付錢。A penny, worth fifty times as much as a sovereign, was something to retain and treasure.必須保存和珍視便士，因為一枚便士抵得上五十枚金幣。It discharges three times as much water as the St. Lawrnce.它流出的水量有圣羅倫斯河的三倍那么多。the chimp has five times as much brain as