1. A +is…times+ as+ adj.原级+as +B
2. A +is…times+ adj.比较级+than +B
3. A +is…times+ the size/length/height/width/depth /amount +of + B
4. The size/length/height/width/depth/amount… +of+ A+ is…times that of +B/ what从句 注意倍数要放在前面，也就是在as…as之前。
例如：这张桌子是那张桌子的三倍大。（这个桌子比那个桌子大两倍。）
This table is 3 times as big as that one. This table is twice bigger than that one.
This table is 3 times the size of that one.
今年的产量是20XX年的4倍
The output of this year is 4 times that of 2006.
The output of this year is 4 times what it was in 2006.
倍数的两种变形
倍数 + as many + n. (/C/ pl）+ as 倍数+ as much + n. (/U/)+ as
I have twice as many (books as you do.)
I ate three times as much (food as you did.) 省略:
He has 20 books. I have twice as many.
He did ate a lot, but I ate three time as much. 例题
1.The bridge is _____ that one. Which of the following is wrong?
A four times so long as
B. four times the length of
C. four times longer than
D. one fourth as big as
2. I like this jacket better than that one, but it costs almost three times _____.
A. as much
B. as many
C. so much
D. so many
3. Ten years ago the population of our village was _____ that of theirs.
A. as twice large as
B. twice as large as
C. twice as much as
D. as twice as much as
4.The house rent is expensive, I have 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
5.It is reported that the United States uses _____ energy as the whole of Europe.
A as twice B. twice much C. twice much as D. twice as much
6. Some countries in Africa have experienced _____ this year as they did last year.
A twice as much rain
B rain twice as much
C as twice much rain
D twice rain as much
5 Wei Fang is only six, but she speaks English____ her mother.
A. as good as B. as better as
C. as well as D. as best as
6 The earth is about____ as the moon.
A. as fifty time big B. fifty times as big C. as big fifty times D. fifty as times big
7 Your room is ___mine.
A. twice as large than
B. twice the size of
C. bigger twice than
D. as twice large as
8 Your room is ___ than mine.
A. three time big
B. three times big
C. three times bigger
D. bigger three times
9 Maths is more popular than____.
A. any other subject
B. all the subjects
C. any subject
D. other subject
10 China is larger than ____ in Africa .
A. any other country
B. other countries
C. the other country
D. any country
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