1. 用英语表达“A是B的N倍长”，“A比B长N倍”或“A的长度是B的N倍”，可用下列几种句型。

2. 新扩建的广场是未扩建时的四倍大。

3. 这棵树是那棵树的三倍高。

4. “A be 倍数 as 计量形容词原级 as B”。

5. 其它I‘m twice/double his age.我的年龄是他的两倍。

6. I‘ve paid five times the usual price for the stamp.

7. This tree is three times as tall as that one.

8. “The 计量名词 of A be 倍数 that of B”

9. The Yangtze River is almost twice longer than the Pearl River.

10. three times the size of that one?>

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

12. “A be 倍数 计量形容词比较级 than B”

13. The dictionary is exactly five times more expensive than that one.

14. 长江差不多比珠江长两倍。

15. 我出了5倍于往常的价格买这枚邮票。

16. 与去年相比，该单位职工的收入增加了50.

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

18. 希望对你有帮助，满意请采纳

19. His father is twice as old as he.

20. “A be 倍数 the 计量名词 of B”

21. This room is three times as large as that one.

22. 新扩建的广场为以前的四倍大。

23. tree times as large(原级）as

24. This room is three times larger than that one.

25. This room is three times the size of that one.

26. 这本字典比那本恰好贵5倍。

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

28. 他父亲的年纪有他两倍大。

29. 1“A+倍数+形容词或副词的比较级+than+B”,表示“A比B大（长、高、宽等）多少倍”如：

30. This rope is twice longer than that one这根绳子是那根绳子的两倍长（比那根绳子长一倍）

31. 2“A+倍数+as+形容词或副词的原级+as+B”,表示“A正好是B的多少倍”如：

32. Asia is four times as large as Europe亚洲的面积是欧洲的四倍

33. 3“A+倍数+the size/height/length/width,etc+of+B”,表示“A正好是B的多少倍”如：

34. This street is four times the length of that one这条街是那条街的四倍长

35. asas结构多用于肯定式，偶尔也可用于否定式。表示同样意思的否定式多用soas。asas结构用于否定句时多用于口语，侧重“像…一样”；soas结构则多用于书面语，侧重“像…那样”。

36. asas结构表示的是同级比较，第一个as后的形容词或副词不可用比较级，必须用原级，比较的对象亦须属同类。

37. asas结构表示数量或程度时，可用于“as much+(不可数名词+) as”或“as many+(可数名词复数+) as”结构。

38. 修饰asas结构的常见词语有nearly,almost,just,exactly,half,quite,表示倍数或次数的形容词，“数词+times”等。这些修饰语都放在asas结构之前。

39. 使用asas结构时，若第一个as后的名词是单数可数名词并有形容词修饰，则应使用“as+ adj+ a/an+ n ”结构，即不定冠词应位于形容词和名词之间。第二个as后面的名词或代词的格不同，意思也不同。

40. asas结构中后一个as用作连词时引导的从句常为省略句，省略从句中的动词可使主句的意义得到加强；反之，重复从句中的动词则可使从句的意义得到强调。