高中英语知识点：倍数的表示法

高中知识搜索小程序

1、belong to  属于

无被动结构，也不用进行时态。下列单词和词组也无被动形式：appear, disappear, happen, take place, break out等。

The house belongs to him.这所房子归他所有。The book belongs to my deskmate.这本书是我同位的。

2、besides

作为副词，意思是“还有，而且”（moreover），常放在句首。如：

I don ‘t want to go out for a walk. Besides, I’m feeling tired.

3、倍数的表示法

1）…times as…as“……是……的几倍”；

Asia is four times as large as Europe.亚洲的大小是欧洲的4倍。

2）…times +形容词/副词比较级+that:

The new building is four times higher than the old one.新楼比旧楼高4倍。

3）…times+the size/height/length/depth+of…

The earth is 49 times the size of the moon.地球是月亮大小的49倍。

The ball is twice the width of our classroom.舞厅是我们教室宽度的2倍。

4）…times+what从句：

The production now is three times what it was ten years ago.现在的生产是10年前的3倍。

[应用]选择正确答案

①After the new technique was introduced,the factory

produced_____tractors in 1988 as the year before.(MET’90)

A．as twice many   B.as many twiceC.twice as many    D.twice many as

②The population of China is_____than that of America.

A.larger five times  B.five times larger  C.five times as  D.as five times

Key:①C  ②B