题目

The reading room is_______the classroom. A. two times as big as       B. twice bigger as   C. twice as big than         D. twice as big as 答案：D 解析: 此题中正确答案是D（twice as big as）, 表示“某物是某物几倍大”可用“…time as big as…” 或者”…times bigger than …”结构，而“两倍”要用twice 而不用two times, 所以其他选项均为错误。如：He has worked twice as long as I have. 他工作的时间是我的两倍。把0.8改写成用百分之一为计数单位的数是______．