倍数的三种基本表达法
一、倍数+as+形容词原级+as„
二、倍数+比较级+than„
三、倍数+the size / length / width / height / age等名词+of„
1. It is reported that the United States uses ________ energy as the whole of Europe. (广西卷)
A. as twice B. twice much
C. twice much as D. twice as much
【分析】答案选D。由twice(两倍)和energy后的as可知，此题是考查用“倍数+as+形容词原级+as”来表达倍数的方法。
2. The house rent is expensive, I’ve got about half the space I had at home and I’m paying ________ here. (上海卷)
A. as three times much B. as much three times
C. much as three times D. three times as much
【分析】答案选D。倍数three times要放在as的前面，后面省略as I paid at home。
3. With the help of the German experts, the factory produced ________ cars in 1993 as the year before. (上海卷)
A. as twice many B. as many as twice
C. as twice as many D. twice as many
【分析】答案选D。倍数放在as之前。此题与全国卷曾考过的一题几乎一样：
4. After the new technique was introduced, the factory produced ________ tractors in 1988 as the year before.
A. as twice many B. as many twice
C. twice as many D. twice many as
【分析】答案选C。倍数放在as之前。
5. Paper produced every year is ________ the world’s production of vehicles. (上海卷)
A. the three times weight of B. three times the weight of
C. as three times as heavier as D. three times as heavier as
【分析】答案选B。倍数three times要放在the weight of之前。若选项D中heavier改为heavy也对。
6. Our classroom is twice larger than theirs. 我们的教室比他们的大两倍。（意为：我们的教室是他们教室的三倍。）