倍数的几种表达法作一归纳: 一、用 times 表示倍数(一般限于包括基数在内三倍或三倍以上的数。表示两倍的数,一般用 twice )。其句式有: 1. “… times +形容词 / 副词的比较级+ than …”例如: Line AB is three times longer than line CD. 线段 AB 是(线段) CD 的三倍长。 This hall is five times bigger than our classroom. 这个大厅比我们的教室大 5 倍。 2. “… times +as + 形容词 / 副词的原级+ as …”例如: This table is three times as long as that one. 这张桌子是那张桌子的三倍长。 This dictionary is five times as thick as the one you borrowed from the library. 这本词典的厚度是你从图书馆借的那本(厚度)的 5 倍。 3. “… times + the + 名词(如: size, height, weight, length, width 等)+ of …”例如: The earth is 49 times the size of the moon. 地球的体积是月球的 49 倍。 This river is three times the depth of that one. 这条河是那条河的三倍深。 4. “… times + more +名词+ than …”例如: He earns five times more money than he did ten years ago. 他现在挣的钱比十年前挣的多 5 倍。 There are twice more students in our class than in theirs. 我们班的学生人数比他们班多两倍。 5. “… times +as many (或 much )+名词+ as …”例如: We've produced twice as much cotton this year as ( we did ) ten years ago. 今年我们生产的棉花比十年前多了一倍。(汉语中的多一倍实际上也指两倍一样多。) He has got three times as many books as his sister. 他拥有的书的数量是他妹妹的 3 倍。 6. “… times + what 从句”例如: The length of the road is four times what it was three years ago. 这条路的长度是三年前的 4 倍。 The price of the meat is twice what it was last year. 肉价是去年的两倍。 7. “… times + up on (或 over )…”例如: The size of the sun is a million times over that of the earth. 太阳的体积比地球的体积大一百万倍。 He is three times up on your age. 他的年龄是你的 4 倍(或:比你的年龄大 3 倍)。 8. “… +by + … times ”例如: Compared with last year, our coal output has increased by three times. 与去年相比,我们的煤产量增长了 3 倍。 His speed is faster than mine by four times. 他的速度比我的快 4 倍。 9. “… times + compared with +被比较对象”例如: The number of the students in our school has increased for times compared with 1980. 我们学校的学生人数比 1980 年增加了 3 倍。 10. “… times + that of + 被比较对象”例如: In this workshop the output of July was 3.5 times that of January. 这个车间七月份的产量是元月份的 3.5 倍。 但是我有点不懂: an area 100 times greater than =an area 100 times more than= 100 times more arean than 这三种表达一样吗?都是正确的吗? 在这里面more 和great都一样吗?
[此贴子已经被作者于2007-9-23 10:24:58编辑过] |