英语中倍数表达法用法.doc

英语中倍数表达法用法一、 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twice。）。其句型有: 1. times形容词（副词）比较级than. This hall is five times bigger than our classroom. 这个大厅比我们的教室大五倍。（是我们教室的六倍大）The car runs twice faster than that truck. 这辆轿车的速度比那辆卡车快两倍。（是那辆卡车的三倍快）2. timesas形容词（或much）或副词原级as. The big box is four times as heavy as the small one. 大箱子是小箱子的四倍重。Asia is four times as large as Europe. 亚洲的面积是欧洲的四倍。Ten is twice as much as five. 十是五的两倍。The plane flew ten times as high as the kite. 那架飞机飞行高度是那个风筝的十倍。（高出九倍）3.timesthe名词（size, height, weight, length, width）ofYour playground is 900 metres wide, three times the size of ours. 你们操场有900米宽, 是我们的三倍。This street is four times the length of that one. 这条大街是那条街的四倍长。4. timesmore名词（可数, 不可数）than. There are four times more books in our library than in yours. 我们图书馆藏书（数量）是你们图书馆的四倍。（多三倍）We have produced twice more grain this year than we did last year. 我们今年生产的粮食比去年增长一倍。（是去年的两倍）5. times as many（或much）名词(其它)+asThere is three times as much water in this pot as in that one. 这个壶里的水（量）是那个壶里的三倍。There are five times as many students as we expected. 到的人是我们预计的五倍。6. timesover被比对象表示“增加倍”。如: The grain output in that village was twice over that of 1978. 那个村的粮食产量比一九七八年的增加了两倍。7. timesthat of被比对象“是倍”。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三点五倍。1. times形容词（副词）比较级than. 2. timesas形容词（或much）或副词原级as. 3.timesthe名词（size, height, weight, leng