Unit 3 倍数表达法2023-2024学年人教版八年级英语上册

1. 倍数 + as + 形容词或副词的原级 + as + 其他。

这种结构又常演变成下列两类：

①倍数 + as + many + 可数名词复数 + as；

②倍数 + as +much + 不可数名词 + as。如：

There are seven times as many people as I expected.是我预料的人数的七倍。

There is five times as much coffee in this glass as in that one.

这个杯子里的咖啡是那个杯子里的五倍。

2. 倍数 + 形容词（或副词）的比较级 + than + 其他。如：

The hall is five times bigger than our classroom. 这个大厅的面积比我们教室大五倍。

3. 倍数 + the size / height / length / width. etc. + of + 其他。如：

This road is six times the length of that one. 这条路是那条路的六倍长。

4. 计量名词 + of + 名词 + be +倍数 + that + of + 其他。如：

The size of the newly broadened square is four times that of the previous one.

新扩建的广场为以前的四倍大。

5. 倍数+what从句。如：

The production is now three times what it was ten years ago.现在的产量是十年前的三倍。

6. 倍数 + more + 名词 + than +其他。如：

There are nine times more books in his bag than in yours.

他书包里的书比你书包里的书多九倍。

7. 其他表达。如：

She’s twice/ double my age. 她的年龄是我的两倍。

The average income of the staff has been increased by 50 percent compared with last year.

与去年相比，该单位职工的收入已增加了50%。

He runs faster than me by three times. 他跑得比我快三倍。

 

再来看点，其他不同的具体表达方式.

 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。