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
点击查看：高中英语知识点大全相关专题