英语语法倍数解析
在英语语法中，倍数的表示方法有哪些?你会运用吗?下面是学习啦小编给大家整理的英语语法倍数解析，供大家参阅!
英语语法倍数的表达法1
倍数的表达方法在初中阶段是常常会考查的知识点之一，一般来说，用英语表达"A 是 B 的 N 倍长(宽，高，大，重等)"，"A 比 B 长(宽，高，大，重等)N 倍" 或"A 的长度(宽度，高度，大小，重量等)是 B 的 N 倍"，可用下列几种句型。
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 is 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 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。
英语语法倍数的表达法2
倍数表达法是高中英语教学的重点，也是历届高考的热点。当我们要表达甲是乙的几倍时，通常用下面三个句型来表示：
1. “A+倍数+形容词或副词的比较级+than+B”，表示“A比B大(长、高、宽等)多少倍”。如：
This rope is twice longer than that one. 这根绳子是那根绳子的两倍长(比那根绳子长一倍)。
This hall is five times bigger than our classroom. 这个大厅比我们的教室大四倍(是我们教室的五倍)。
The car runs twice faster than that truck. 这辆小车的速度比那辆卡车快一倍(是那辆卡车的两倍)。
2.“A+倍数+as+形容词或副词的原级+as+B”，表示“A正好是B的多少倍”。如：
Asia is four times as large as Europe. 亚洲的面积是欧洲的四倍。
This big stone is three times as heavy as that one. 这块大石头的重量是那块的三倍。
The plane flew ten times as high as the kite. 那架飞机的飞行高度是那只风筝的十倍。
3. “A+倍数+the size/height/length/width， etc+of+B”，表示“A正好是B的多少倍”。如：
This street is four times the length of that one. 这条街是那条街的四倍长。
This hill is four times the height of that small one. 这座山的高度是那座小山的四倍。
英语语法倍数的表达法3
除掌握倍数表达的三个常规句型外，我们更要注意的是其常规句型的变形及其特殊规律。
一。 常规句型的变形
1. “ …… times+more+名词(可数或不可数)+than+被比对象”。如：
There are five times more books in our library than in yours. 我们图书馆里的书比你们图书馆多四倍。
We have produced twice more grain this year than we did last year. 我们今年生产的粮食是去年的两倍。
2. “ …… times as many/much+名词+as+被比对象”。如：
There is four times as much water in this pot as in that one. 这个壶里装的水是那个壶里的四倍。
There are six times as many students as we expected. 学生数量是我们预期的六倍。
3.“ …… times+over+被比对象”。如：
The grain output in that village is twice over that of 2002. 那个村的粮食产量是2002年的两倍。
4. “ …… times+that+of+被比对象 ”。如：
In this workshop， the output of July was 4.5 times that of January. 这个车间7月份的产量是1月份的4.5倍。
5. “……times+compared with+被比对象”。如：
The number of the students in our school has increased 4 times compared with 1980. 我们学校的学生人数比1980年增加了三倍。
6. “……times+what+从句”。如：
The production is now three times what it was ten years ago. 现在的产量比十年前增加了两倍。
二。 倍数/百分数(percent)+compared with/up on +被比对象。如：
Our factory ' s output of TV sets in the first six months of this year was 10% up compared with last year. 今年头六个月我们厂电视机的产量与去年相比增加了10%.
The industrial output of last year in our factory was 35% up on that of 2001. 我们厂去年的工业产量比2001年增加了35%.
三。 用double表示倍数
1. double用作形容词，表示“两倍的”。如：
The production is now double what it was ten years ago. 现在的产量是十年前的两倍。
2. double用作动词，表示“是……的两倍。如：
The output has been doubled in the past six years. 在过去六年中产量已经翻了一番。
This brought a steady rise in the grain yield. In 2002 it nearly doubled that of 1980. 这使粮食产量不断增长，到2002年产量已经比1980年翻了一番。
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