倍数的表达方式 一般情况下我们用以下三种倍数表达方式: 1)倍数用在as + 形容词 / 副词+ as结构之前.如: They have three times as many cows as we do. 2)倍数放在形容词或副词的比较级之前或by + 倍数用在比较级之后.如: This rope is four times longer than that one. They produced more products in 2001 than those in 2000 by twice. 3)倍数用在表示度量名词前.其基本结构为:倍数 + the + size / length / weight - + of + 表示比较对象的名词.也可用于倍数 + what引导的从句中.如: This room is three times the size of that one. The college is twice what it was 5 years age. You can’t imagine that rats eat 40 to 50 times their weight. 【查看更多】