比较级和最高级

英语语法中比较级和最高级的一些用法和例句。比较级是由形容词原级转化而来，一般是在原级后面加er，也有一些不规则的转化，最高级是由形容词或副词转化而来，形容词的最高级前面要加定冠词the，副词最高级前面的the可以省略。

比较级

• Positive Degree
  • A is as adj/adv/adj+n as B
    • 不同的subjects 相同的比较项
      • The girl is as bright as her sister
    • 同subjects 不同比较项
      • The girl is as brilliant as she was beautiful
    • 不同subjects 不同比较项
      • The swimming pool isn't twice as wide as that one is long
  • A is not as/so adj/adv as B
    • The girl is not as bright as her sister
  • A is less adj/adv than B
    • Your problem is less important than hers
• Superlative Degree
  • A is the adj_est/adv_est + n+ area
    • the 是有范围时才用的，表示最，不然不能表示最，副词前的the可以省略
      • He works (the) hardest
  • adj_er + adv_er than
    • +any other +单数
    • +the other +复数
    • +any of the other+复数
      • he is smarter than any of the other students
  • Negative words as +形/副+as
    • No animal can live as long as a tortoise
  • Negative words +形er/副er
    • Never have I seen a larger airport
• Comparative Degree
  • not more…than/no more…than
    • 形容词
      • You are not more careful than he is
      • You are no more careful than he is
    • 数词
      • There are not more than 5 students in the library
        • 不超过
      • There are no more than 5 students in the library
        • 只有
    • 名词
      • The bat is no more a bird than the whales is fish
        • 蝙蝠不是鸟正如鲸鱼不是鱼
    • 动词
      • I can no more sing than he can drive
    • 
      • not more…than 正常否定 客观描述 / no more …than带有情感
  • more than 
    • 形容词 非常
      • The boy was more than happy to serve us
    • 数词
      • over
    • 名词 不仅仅是
      • Mr.Lee is more than a teacher
  • more…than
    • 不同subjects 同一比较项
      • He has more books than me 
    • 相同subjects 不同的比较项 与其…不如…
      • He was more lucky than clever
        • more …than与其…不如…同一个不同比较项时，lucky 不能用luckier
  • not/no less than
    • 形容词
      • You are less careful than he is
      • You are not less careful than he is
    • no less +n than
      • The stranger turned out to be less a person than the mayor
    • 数词
      • There are not less than 5 students in the room
      • There are no less than 5 students
    • 动词
      • The girl doesn't sing less beautiful than the singer
      • The girl sings no less beautiful than the singer
  • the adj-er， the adj_est the adv_er，the adv_est
    • The more words he recites,the easier you will feel when you learn English.
      • 主将从现
• Tips
  • elder/eldest 不能用比较级 older/oldest
    • My car is older than yours
    • Is she your elder sister?
  • by far/by no means /much/ very /almost /the third 加最高级
    • She is by far the best of the students in class.
    • This is by no means the best solution.
    • This is the very best（这是最好的）。 This is much the best（这是最好的）
    • Africa is the second largest continent。
    • 最高级
  • even/far/even 加比较级
    • She is far better than the other students.
    • He is getting (too) much fatter these days
    • 比较级
  • the+area 
    • That star are brightest when there is no moon
  • most
    • This book is most interesting