
英语中倍数的表达方式归纳.ppt
22页英语中英语中“倍数倍数”的表的表达方式归纳达方式归纳 倍数英语中倍数英语中“倍数倍数”的表达方式归的表达方式归纳纳 n nThe house rent is expensive. I've got about half the space I had at home and I'm paying _______ here.A. as three times muchB. as much three timesC. much as three timesD. three times as much n n正确答案为正确答案为 D 倍英语中倍英语中“倍数倍数”的表达方式归纳的表达方式归纳数数n n一、用一、用 times 表示倍数(一般限于包括基表示倍数(一般限于包括基数在内三倍或三倍以上的数表示两倍的数在内三倍或三倍以上的数表示两倍的数,一般用数,一般用 twice )其句式有:)其句式有:n n1. “… times +形容词+形容词 / 副词的比较级+副词的比较级+ than …”例如:例如:n nLine AB is three times longer than line CD.线段线段 AB 是(线段)是(线段) CD 的三倍长。
的三倍长This hall is five times bigger than our classroom.这个大厅比我们的教室大这个大厅比我们的教室大 5 倍 n nLine AB is long.n nLine AB is longer than line CD.n nLine AB is three times longer than line CD.n nThis hall big.n nThis hall bigger than our classroom.n nThis hall is five times bigger than our classroom.倍英语中倍英语中“倍数倍数”的表达方式归纳的表达方式归纳数数n n2. “… times +as + 形容词形容词 / 副词的原级副词的原级++ as …” 例如:例如:n nThis table is three times as long as that one.这张桌子是那张桌子的三倍长这张桌子是那张桌子的三倍长This dictionary is five times as thick as the one you borrowed from the library.这本词典的厚度是你从图书馆借的那本这本词典的厚度是你从图书馆借的那本(厚度)的(厚度)的 5 倍。
倍 n nThis table is long.n nThis table is as long as that one (is).n nThis table is three times as long as that one (is).n nThis dictionary thick.n nThis dictionary is as thick as that one (is). n nThis dictionary is five times as thick as that one (is).n nThis dictionary is five times as thick as the one you borrowed from the library (is).倍英语中倍英语中“倍数倍数”的表达方式归纳的表达方式归纳数数n n3. “… times + the + 名词(如:名词(如: size,, height,, weight,, length,, width 等)等)++ of …” 例如:例如:n nThe earth is 49 times the size of the moon.地球的体积是月球的地球的体积是月球的 49 倍。
倍This river is three times the depth of that one.这条河是那条河的三倍深这条河是那条河的三倍深倍英语中倍英语中“倍数倍数”的表达方式归纳的表达方式归纳数数n n4. “… times + more +名词++名词+ than …” 例如:例如:n nHe earns five times more money than he did ten years ago.他现在挣的钱比十年前挣的多他现在挣的钱比十年前挣的多 5 倍There are twice more students in our class than in theirs.我们班的学生人数比他们班多两倍我们班的学生人数比他们班多两倍 倍英语中倍英语中“倍数倍数”的表达方式归纳的表达方式归纳数数n n5. “… times +as many (或(或 much )+)+名词+名词+ as …”例如:例如:n nWe‘ve produced twice as much cotton this year as (( we did )) ten years ago.今年我们生产的棉花比十年前多了一倍。
今年我们生产的棉花比十年前多了一倍汉语中的多一倍实际上也指两倍一样多汉语中的多一倍实际上也指两倍一样多n nHe has got three times as many books as his sister.他拥有的书的数量是他妹妹的他拥有的书的数量是他妹妹的 3 倍 n nWe‘ve produced much cotton We‘ve produced much cotton this yearthis year n nWe‘ve produced We‘ve produced as much cottonas much cotton this yearthis year asas (((( we did we did )))) ten years agoten years ago. .n nWe‘ve produced We‘ve produced twice as much cottontwice as much cotton this this yearyear as as (((( we did we did )))) ten years agoten years ago. .n nHe has got He has got many booksmany books. .n nHe has got as He has got as many books asmany books as his sister his sister (has).(has).n nHe has got He has got three times as many books asthree times as many books as his sister (has).his sister (has).倍英语中倍英语中“倍数倍数”的表达方式归纳的表达方式归纳数数n n6. “… times + what 从句从句” 例如:例如:n nThe length of the road is four times what it was three years ago.这条路的长度是三年前的这条路的长度是三年前的 4 倍。
倍The price of the meat is twice what it was last year.肉价是去年的两倍肉价是去年的两倍倍英语中倍英语中“倍数倍数”的表达方式归纳的表达方式归纳数数n n7. “… times + up on (或(或 over ))…”例例如:如:n nThe size of the sun is a million times over that of the earth.太阳的体积比地球的体积大一百万倍太阳的体积比地球的体积大一百万倍He is three times up on your age.他的年龄是你的他的年龄是你的 4 倍(或:比你的年龄大倍(或:比你的年龄大 3 倍)倍英语中倍英语中“倍数倍数”的表达方式归纳的表达方式归纳数数n n8. “… +by + … times ”例如:例如:n nCompared 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与去年相比,我们的煤产量增长了 3 倍His speed is faster than mine by four times.他的速度比我的快他的速度比我的快 4 倍。
倍 倍英语中倍英语中“倍数倍数”的表达方式归纳的表达方式归纳数数n n9. “… times + compared with +被比+被比较对象较对象”例如:例如:n nThe number of the students in our school has increased three times compared with 1980.我们学校的学生人数比我们学校的学生人数比 1980 年增加了年增加了 3 倍 倍英语中倍英语中“倍数倍数”的表达方式归纳的表达方式归纳数数n n10. “… times + that of + 被比较对象被比较对象”例如:例如:n nIn this workshop the output of July was 3.5 times that of January.这个车间七月份的产量是元月份的这个车间七月份的产量是元月份的 3.5 倍 倍英语中倍英语中“倍数倍数”的表达方式归纳的表达方式归纳数数n n二、用分数、百分数表示倍数例如:二、用分数、百分数表示倍数例如:n nThe box is one-third bigger than that one.这个盒子比那个盒子大三分之一。
这个盒子比那个盒子大三分之一Last year the output value of industry was 59 percent higher than that of 1976.去年工业产值比去年工业产值比 1976 年增长了年增长了 59 %My command of English is not half so good as yours.我英语掌握得还不及你的一半儿好我英语掌握得还不及你的一半儿好 倍英语中倍英语中“倍数倍数”的表达方式归纳的表达方式归纳数数n n三、用三、用 again again (一倍)(一倍)double double (两倍),(两倍),triple triple (三倍)(三倍)fourfold fourfold (四倍)等词表示倍数例如:(四倍)等词表示倍数例如:n nMy Aunt is as old again as I am.My Aunt is as old again as I am.我姑姑的年龄比我大一倍我姑姑的年龄比我大一倍The top-brand clothes are often sold as double The top-brand clothes are often sold as double the normal price here.the normal price here.这里名牌衣服的售价经常比正常的售价高一倍。
这里名牌衣服的售价经常比正常的售价高一倍The new work procedure tripled the output.The new work procedure tripled the output.新工艺使产量增加两倍新工艺使产量增加两倍The output of grain increased fourfold.The output of grain increased fourfold.粮食产量增加了三倍粮食产量增加了三倍 [巩固练习][巩固练习] n nAmericans eat ________ vegetables per person today as they did in 1910.A. more than twiceB. as twice as manyC. twice as many asD. more than twice as many n nKey:: D[巩固练习][巩固练习] n nPaper 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 n nKey:: B[巩固练习][巩固练习] n nWith the help of the German experts,, the factory produced ______ cars in 1993 as the year before.A. as twice manyB. as many twiceC. twice as manyD. twice many as n nKey:: C[巩固练习][巩固练习] n nThis ship measures ________ that one.A. as twice as longB. as twice long asC. twice long asD. twice as long as n nKey:: D[巩固练习][巩固练习] n nAfter the new technique was introduced,, the factory produced _______ tractors in 1988 as the year beforeA. as twice manyB. as many asC. as twice as manyD. twice as many n nKey:: D。












