一.形容词和副词最高等组成
  1. 规矩变更：
(1) 单音节和少数双音节词
    a. 多在词尾加-est,如：tallest
    b. 以不发音的e结尾,直接加-st,如：nicest
    c. 以子音字母加y结尾,把y变i,再加-est,如：funniest
    d. 以一个子音字母结尾而前面只有一个元音的词,双写子音字母再加-est,如：biggest, hottest等
  (2) 多音节词和少数双音节词,在词前加most, 如：most beautiful
  2. 不规矩变更：
good/well----- best  bad/ ill----- worst  many/ much----- most
little---- least  far---- farthest/ furthest
二.形容词最高等的几种句型
11.暗示三者或三者以上（人或物）的比较,个中有一个超出其他几个.形容词最高等前要加the,副词最高等前常省略the, 后面平日带of（in）短语来解释比较的规模（of 后的名词或代词暗示与主语属统一类;in 暗示时光或空间规模）.
①在我们班上他最高. He is __________ ( tall) _____ our class.
②玛丽是这三个学生中最小的.
Mary is  __________ (young) ______ the three students.
2. one of + the +形容词最高等 + 名词复数  最…的…之一
  e.g. Tom is one of the cleverest students in our class.
3. the + 序数词 + 形容词最高等 + 可数名词单数 + in 短语 
第几（长,大,远）…
  e.g. The Yellow River is the second longest river in China.
4.形容词最高等用在选择疑问句中,
Which/ Who be+ the 最高等… A, B or C?
  e.g. Which city is the biggest, Beijing, Shanghai or Linyi?
5. the + 形容词最高等 + 可数名词单数 + of (in)短语 =
              than the other + 名词复数
比较级 +
than any other + 可数名词单数
比较级和最高等的同义句转换
He is the tallest boy in his class.
He is taller than any other boy in his class.
He is taller than the other boys in his class
6. 当形容词最高等有形容词性的物主代词或名词所有格润饰时,最高等前的定冠词 the 省略.
e.g. Linda is my sister’s best friend.
△“用twice 等暗示倍数的词+ as +原级＋as…”暗示甲是乙的几倍.
“用twice 等暗示倍数的词+比较级than …暗示甲比乙···几倍.
这间房是那间房面积的两倍.
This room is _______ as big as that one.
=This room is _______bigger than that one
1 英语练习题Which is _______ (big) ,the sun,the moon or the earth?
2.Which is ______ (beautiful),the black coat or the blue one?
3.This mooncake is ____ (cheap) of all.
4.He is _______ (strong) in the class.
5.English is ____ (widely)spoken in the world.
6.黄河是中国第二长河.The Yellow River is ______ ______ ______ river in China.
7. Playing computer games is______ _____ _____ of all the activities.(interesting).
8.He is one of the_________(friendly) people in the class.
9你和你的叔叔一样高吗?
_________ ________as _________as your uncle?
10女孩比男孩唱得好吗？是的. 
____the girl______ ______ ______the boy? Yes,she ____.
11 北京是中国最俏丽的城市.
练一练
一. 写出下列形容词的比较级和最高等
1. old ______  ________  2. busy _________  __________
3. thin ________  ________4. many _________  __________
5. slow ________ _______6. delicious _________ _________
二.选择准确的答案
1. Bob never does his homework_____ Mary. He makes lots of mistakes.
A. so careful as    B. as carefully as  C. carefully as    D. as careful as
2.Now air in our town is ____ than it used to be. Something must be done to it.
A. very good  B. much better  C. rather than  D. even worse
3. I feel __ better than yesterday.  A. more  B. very  C. the  D. far
4. China has a large population than __ in the world.
A. all the countries B. every country C. any country D. any other country
6.The sick boy is getting __ day by day.
A.worse B. bad C. badly C. worst
7.This necklace looks __ and__ sells__.
A. well, well B. good, nice C. nice, good  D. nice, well
8. Doctor Wang ___ heart operation
A. is interested on B. like doing C. does well in D. is good at
9.the population of Shangdong is__ than that Sichuan.
A. smaller B. larger C. less D. large
10.I didn’t go shopping yesterday.He didn’t __.
A. so B. either C. too C. neither
11.___ delicious the food is! 
A.How B . how a C. What D. What a
12. What animal do like ___?  I like all kinds of animals.