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倍数表达法
是历届高考的热点。当我们要表达甲是乙的几倍时，通常可使用以下句型：
1.倍数+as+形容词或副词的原级+as+其它。这种结构又常演变成下列两类：①倍数+as+many+可数名词复数+as;②倍数+as+much+不可数名词+as。如：
There are seven times as many people as I expected.是我预料的人数的七倍。
There is five times as much coffee in this glass as in that one.这个杯子里的咖啡是那个杯子里的五倍。
2.倍数+形容词（或副词）的比较级+ than+其它。如：
The hall is five times bigger than our classroom.这个大厅的面积比我们教师大五倍。
3.倍数+the size/height/length/width.etc.+of+其它。如：
This road is six times the length of that one.这条路是那条路的六倍长。
4.计量名词+of+名词+be+倍数+that+of+其它。如：
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.倍数+what从句。如：
The production is now three times what it was ten years ago.现在的产量是十年前的三倍。
6.倍数+more+名词+than+其它。如：
There are nine times more books in his bag than in yours.
他书包里的书比你书包里的书多九倍。
7.其它表达。如：
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倍 数 表 达 法 共2页 倍 数 表 达 法
1.A is three(four„) times/twice/half/a quarter the size/length/width/height/depth/weight
„of B.
①This street is four times the length/the width of that one.
这条街是那条街的四倍长/宽(或这条街比那条街长三倍/宽三倍)。
②The new building is four times the size/the height of the old one.
这座新楼是那座旧楼的四倍大/四倍高(或这座新楼比那座旧楼大/高三倍)。
③The size/height of the new building is four times that of the old one.
这座新楼的大小/高度是那座旧楼的四倍。(由于句首已用了the size/the height,所以在four
times后面用代词that来代替，以避免重复。)
④This room is half the size of that one .这个房间是那个房间的一半大。
⑤This room is twice the size of that one .
这个房间是那个房间的两倍大。(这个房间比那个房间大一倍。)
⑥The earth is 49 times the size of the moon .地球的大小是月亮的49倍。
2. A + V./ be + three(four„) times /twice/half/a quarter/分数/百分数 + as + adj/adv原级 + as + B.
①Asia is four times as large as Europe. 亚洲是欧洲的四倍大。(亚洲比欧洲大三倍。)
1 / 8 英语中倍数的表达法和相关练.“倍数”的表达方式总..Th.hous.ren.i.expensive.I'v.go.abou.hal.th.spac..ha.a.hom.an.I'.payin.______.here..200.上海）
A.a.thre.time.much
B.a.muc.thre.times
C.muc.a.thre.times
D.thre.time.a.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。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: (前三种为主)
1.“.time.＋形容..副词的比较级.tha.…”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。
This rope is twice longer than that one.
This hall is five times bigger than our classroom.
The car runs twice faster than that truck.
2.“.time.+a..形容..副词的原级.a.…”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 2 / 8 the library.
初三英语倍数表达法练习题40题(答案解析)
1. This tree is ______ that one.
A. three times as tall as
B. three times taller as
C. as three times tall as
D. as three times taller as
答案解析：A。在倍数表达法中，“A + be + 倍数+ as + 形容词原级+ as + B”是基本结构。选项A符合这个结构，表示这棵树是那棵树的三倍高。选项B中“taller as”用法错误，应该是“taller than”或者“as...as”结构。选项C倍数的位置错误，应该放在as前面。选项D同样存在倍数位置错误和结构混淆的问题。
2. The box is ______ the bag.
A. twice as heavy as
B. twice heavy than
C. as twice heavy as
D. heavy twice as
答案解析：A。根据倍数表达法规则，“A + be + 倍数+ as + 形容词原级+ as + B”。选项A正确，表达盒子是袋子的两倍重。选项B中“heavy than”用法错误，比较级正确形式是“heavier than”，而且这里要用倍数表达法的标准结构。选项C倍数位置错误。选项D结构完全错误。
3. My room is ______ yours.
A. four times as large as
B. four times larger as
C. as four times large as
D. as four times larger as
答案解析：A。“A + be + 倍数+ as + 形容词原级+ as + B”是正确的倍数表达结构。选项A符合，表示我的房间是你的房间的四倍大。选项B中“larger as”用法错误。选项C倍数位置不对。选项D结构错误，既倍数位置不对又不符合正确结构。
