倍数用法

更新时间:2023-07-07 19:33:41 阅读：评论：0

英语中“倍数”的常用表达方式(一)

1. "A + be + 倍数 + as + 计量形容词原级 + as + B".
This tree is three times as tall as that one. 这棵树是那棵树的三倍高。
His father is twice as old as he. 他父亲的年纪有他两倍大。

2."A + be + 倍数 + 计量形容词比较级 + than + B "
The Yangtze River is almost twice longer than the Pearl River.
长江差不多比珠江长两倍。
The dictionary is exactly five times more expensive than that one.
这本字典比那本恰好贵5倍。

3."A + be + 倍数 + the + 计量名词 + of + B "
The newly broadened square id four times the size of the previous one.
新扩建的广场是未扩建时的四倍大。

4."The + 计量名词 + of + A + be + 倍数 + that + of + B "
The size of the newly broadened square is four times that of the previous one.
新扩建的广场为以前的四倍大。

5.其它
I'm twice/ double his age. 我的年龄是他的两倍。
I've paid five times the usual price for the stamp.
我出了5倍于往常的价格买这枚邮票。
The average income of the staff has been incread by 50 percent compared with last year. 与去年相比，该单位职工的收入增加了50%.
The price of TVs are twofold( adj. 两部分的, 双重的) down over the years.
近几年来，电视机的价格下降了两倍。

有这样一道高考题：
（ 2003 上海） The hou rent is expensive. I've got about half the space I had at home and I'm paying _______ here.

A. as three times much B. as much three times

C. much as three times D. three times as much

该题的正确答案为 D .显然本题是在考查倍数的表达法。倍数表达法是高中英语教学的重点，也是历年的高考热点之一。掌握倍数的表达法对于同学们学好英语具有重要意义。下面对倍数的几种表达法作一归纳：

一、用 times 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，一般用 twice ）。其句式有：

1. “… times ＋形容词 / 副词的比较级＋ than …”例如：

Line AB is three times longer than line CD.

线段 AB 是（线段） CD 的三倍长。

This hall is five times bigger than our classroom.

这个大厅比我们的教室大 5 倍。tenderness

2. “… times +as + 形容词 / 副词的原级＋ as …”例如：

This table is three times as long as that one.

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（厚度）的 5 倍。

3. “… times + the + 名词（如： size， height， weight， length， width 等）＋ of …”例如：

ssa心理健康教育的意义The earth is 49 times the size of the moon.

地球的体积是月球的 49 倍。

This river is three times the depth of that one.

这条河是那条河的三倍深。

4. “… times + more ＋名词＋ than …”例如：

He earns five times more money than he did ten years ago.

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。

5. “… times +as many （或 much ）＋名词＋ as …”例如：

We'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。（汉语中的多一倍实际上也指两倍一样多。）

He has got three times as many books as his sister.

他拥有的书的数量是他妹妹的 3 倍。

6. “… times + what 从句”例如：

The length of the road is four times what it was three years ago.

这条路的长度是三年前的 4 倍。

The price of the meat is twice what it was last year.

肉价是去年的两倍。

7. “… times + up on （或 over ）…”例如：

The 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。

He is three times up on your age.

他的年龄是你的 4 倍（或：比你的年龄大 3 倍）。

8. “… +by + … times ”例如：

Compared with last year， our coal output has incread by three times.

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 4 倍。

9. “… times + compared with ＋被比较对象”例如：

The number of the students in our school has incread for times compared with 1980.

我们学校的学生人数比 1980 年增加了 3 倍。

10. “… times + that of + 被比较对象”例如：

In 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 3.5 倍。

二、用分数、百分数表示倍数。例如：

The box is one-third bigger than that one.

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 1976 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。

三、用 again （一倍）， double （两倍）， triple （三倍）， fourfold （四倍）等词表示倍数。例如：

My Aunt is as old again as I am.

victory是什么意思我姑姑的年龄比我大一倍。

The top-brand clothes are often sold as double the normal price here.

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.

新工艺使产量增加两倍。

The output of grain incread fourfold.

粮食产量增加了三倍。

〔巩固练习〕

1. （ 2002 上海春） Americans eat ________ vegetables per person today as they did in 1910.

A. more than twice B. as twice as many

C. twice as many as D. more than twice as many

2. （ 1998 上海） Paper produced every year is _______ the world's production of vehicles.

A. the three weight of B. three times the weight of外相

C. as three times heavy as D. three times as heavier as

3. （ 1994 上海） With the help of the German experts， the factory produced ______ cars in 1993 as the year before.

A. as twice many B. as many twice

C. twice as many D. twice many as

4. （ MET 1992 ） This ship measures ________ that one.

A. as twice as long B. as twice long as

C. twice long as D. twice as long as

5. （ MET 1990 ） After the new technique was introduced， the factory produced _______ tractors in 1988 as the year before.

A. as twice many B. as many as

C. as twice as many D. twice as many

Key： 1 － 5 DBCDD

英语中“倍数”的常用表达方式（二）

有这样一道高考题：

（ 2003 上海） The hou rent is expensive. I've got about half the space I had at home and I'm paying _______ here.

A. 外心as three times much

B. as much three times

C. much as three times

D. three times as much

该题的正确答案为 D .显然本题是在考查倍数的表达法。

倍数表达法是高中英语教学的重点，也是历年的高考热点之一。掌握倍数的表达法对于同学们学好英语具有重要意义。下面对倍数的几种表达法作一归纳：

一、用 times 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，一般用 twice ）。其句式有：

1. “… times ＋形容词 / 副词的比较级＋ than …”例如：

Line AB is three times longer than line CD.

线段 AB 是（线段） CD 的三倍长。

This hall is five times bigger than our classroom.3238

这个大厅比我们的教室大 5 倍。

2. “… times +as + 形容词 / 副词的原级＋ as …”例如：

This table is three times as long as that one.

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（厚度）的 5 倍。

3. “… times + the + 名词（如： size， height， weight， length，工程施工计划 width 等）＋consultant of …”例如：

The earth is 49 times the size of the moon.

地球的体积是月球的 49 倍。

This river is three times the depth of that one.

这条河是那条河的三倍深。

4. “… times + more ＋名词＋ than …”例如：

He earns five times more money than he did ten years ago.

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。

5. “… times +as many （或 much ）＋名词＋ as …”例如：

We'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。（汉语中的多一倍实际上也指两倍一样多。）

He has got three times as many books as his sister.

他拥有的书的数量是他妹妹的 3 倍。

6. “… times + what 从句”例如：

The length of the road is four times what it was three years ago.

这条路的长度是三年前的 4 倍。

The price of the meat is twice what it was last year.

肉价是去年的两倍。

7. “… times + up on （或 over ）…”例如：

The 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。

He is three times up on your age.

他的年龄是你的 4 倍（或：比你的年龄大 3 倍）。

8. “… +by + … times ”例如：

Compared with last year， our coal output has incread by three times.

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 4 倍。

9. “… times + compared with ＋被比较对象”例如：

The number of the students in our school has incread for times compared with 1980.

我们学校的学生人数比 1980 年增加了 3 倍。

10. “… times + that of + 被比较对象”例如：

In 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 3.5 倍。

二、用分数、百分数表示倍数。例如：

The box is one-third bigger than that one.

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 1976 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。

三、用 again （一倍）， double （两倍）， triple （三倍）， fourfold （四倍）等词表示倍数。

footwork

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