问题
选择题
Paper produced every year is ________ the world’s production of vehicles.
A．the three times weight of
B．three times the weight of
C．as three times heavy as
D．three times as heavier as
答案
答案：B
题目分析：句意，每年生产的纸张数量是世界车辆生产重量的3倍。“A is倍数+the weight of B”(A是B的几倍重)，这是固定用法，故选B。
点评：这类固定结构就如同数学中的公式，一定要牢记，并能在理解的基础上很好的运用。