重量的表示方法(知道重量宽度求长度)

大小、长度、重量等表示法，特别是倍数表达法对于扩大考生来说是重点也是难点，翻译、改错等题型都可以出题，考试时不容易对付，要求考生必须熟练掌握和运用。

1，主语+系动词+数词+times(倍数)as+原级形容词+as+比较对象。

Asia is four times as large as Europe.

亚洲面积是欧洲的四倍。

He runs twice as fast as Mike．他跑的速度是迈克的两倍。(两倍只用twice就可以了。)

This TV set costs twice as much as that one．

这台电视机的价格是那台电视机的两倍。

The playground is 2．5 times as big as it was ten years ago．

这个操场是十年前的两倍半大。

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。

其实：A is+n times 比较级 than B=A is n times as 原级 as B

Asia is four times as large as Europe.

= Asia is four times larger than Europe.

亚洲面积是欧洲的四倍。

The Yangtze River is almost twice as long as the Pearl River.=The Yangtze River is almost twice longer than the Pearl River.长江差不多是珠江长两倍。

The dictionary is exactly five times as expensive as that one.=The dictionary is exactly five times more expensive than that one.这本字典比那本恰好贵5倍。

The output is twice as much as that of ten years ago. = The output is twice more than that of ten years ago

产量是10年前的两倍。

three times as long as sth=three times longer than sth某物的三倍长

其他的句型转化也是同理。2，A+系动词+数词+times+the+weight/width/depth/size/length等+of+比较对象。

The big box is five times the weight of the small one．

这个大箱子的重量是小箱子的五倍。

The newly broadened square is four times the size of the previous one.新扩建的广场是未扩建时的四倍大。

说明:上述句型表示“是……的几倍。

3，主语+谓语+倍数词/百分比+形容词／副词比较级+than+比较对象

I am twice older than Tom．

我的岁数是汤姆的两倍。

Your dog可以用twice表示外，其他倍数都是由数字加上times所组成，例如“三倍”是three times， “四倍表示。名词有length，width，height，depth，thickness，weight等。可以用by来把长度和宽度的数值结合起来，用以说明一个物体的大小。

注意：2.表示重量时，可用 in weight 结构，如要表示“这个箱子重10公斤”，可说：

The box is 10 kilos 或The box is 10 kilos in weight，但习惯上不说 The box is 10 kilos heavy。

注意：3.

I&39;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 increased 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 these years.近几年来,电视机的价格下降了两倍。

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