Comparative and superlative adjectivesThe air is bad.The air is worse.The air is the worst.bad worse worste.g. The girls height is one metre. height n. 高度，身高高度，身高e.g. He wants to lose weight by exercising. weight n. 重量；体重重量；体重e.g. They are having a competition. competitionn. 竞赛，比赛竞赛，比赛worse (bad的比较级的比较级)更坏，更差更坏，更差 worst (bad的最高级的最高级)最坏，最差最坏，最差height 高度；身高高度；身高weight 重量；体重重量；体重sec. (= second) 秒秒competition 竞赛，比赛；竞争竞赛，比赛；竞争test 测试，考查测试，考查swimmer 游泳者游泳者Lead-inHe is taller than I am.他比我高。他比我高。Yao Ming is the tallest of the three.姚明是三位中姚明是三位中最高的。最高的。My book is more interesting than his. 我的书比他的更有趣。我的书比他的更有趣。This book is the most interesting of all. 这本书是所有当中最有趣的。这本书是所有当中最有趣的。 形容词通常有形容词通常有三种形式三种形式: 原级，比较原级，比较级和最高级，用来表示人或事物在某级和最高级，用来表示人或事物在某方面的不同程度。如：方面的不同程度。如：(Comparative and superlative adjectives) 原级原级比较级比较级最高级最高级规规则则变变化化短短词词talltallertallest长长词词interestingmore interestingmost interesting不规则不规则变化变化goodbetterbest形容词比较级和最高级形式形容词比较级和最高级形式形容词原级形容词原级比较级比较级最高级最高级短词短词 tallsmall词尾词尾er词尾词尾esttallertallestsmallersmallest一、规则变化一、规则变化形容词原级形容词原级比较级比较级最高级最高级以不发音的以不发音的e结结尾的形容词尾的形容词nicefine以辅音字母以辅音字母y结尾的形容词结尾的形容词prettyeasy把把 y 改成改成 i + er+ stnicernicestfinerfinest把把 y 改成改成 i + estprettier+ reasierprettiesteasiest形容词原级形容词原级比较级比较级最高级最高级重读闭音节重读闭音节,结尾只有一个结尾只有一个辅音字母辅音字母slimbig 长长 词词beautifulimportant双写最后一个双写最后一个辅音字母辅音字母 + estslimmerslimmestbiggerbiggest双写最后一个双写最后一个辅音字母辅音字母 + er前面前面 + more前面前面 + mostmore beautifulmore importantmost beautifulmost important特殊形容词特殊形容词原级原级比较级比较级最高级最高级goodbadlittlemuch/manyoldfar better bestworse worst二、不规则二、不规则变化变化lessleastmoremostolder/elderoldest/eldestfarther/ furtherfarthest/ furthestAdjectiveComparativeSuperlativefunnybadhealthycarefullargesmartslimfunnierfunniestworsehealthierworsthealthiestmore carefulmost carefullargerlargestsmartersmartestslimmerslimmestComplete the table below.Daniel is writing about his classmates. Help him complete the following table with the correct adjectives. AdjectiveComparativeSuperlativecleancleanercleanestbigcuteshorthappylazybiggerbiggestcutestcutershortershortesthappierhappiestlazierlaziestAdjectiveComparativeSuperlativethinthinnerthinnestsaddifficultinterestinggoodbad better bestworse worstsaddersaddestmore difficultmost difficultmore interestingmost interesting1. 两者之间用比较级。两者之间用比较级。 句型结构：句型结构： A + be + 比较级比较级 + than + B2. 三者及以上用最高级。三者及以上用最高级。 句型结构：句型结构： A + be the + 最高级最高级 + 表三者及以上表三者及以上 的范围的范围 形容词比较级和最高级的基本使用原则形容词比较级和最高级的基本使用原则e.g. 1. She is shorter than I am.2. My book is more interesting than his.3. He is the tallest in our class.4. This is the most expensive computer in the shop.Daniel has made a profile of his classmates. Read the profile and complete his notes. Millie Sandy Amy Peter Kitty SimonHeight (cm)157170160173155171Weight (kg)45504455405350 m swimming (sec.)403830343635Drawing competition9/1010/109/105/106/108/10English test10/108/109/106/108/107/101. Simon is _ (tall) Sandy.2. Peter is _ (tall) of the six students.3. Sandy is _ (heavy) Millie.4. Peter is _ (heavy) of the six students.5. Among the six students, Millie is _ (slow) swimmer. taller thanthe tallestheavier thanthe heaviestthe slowest6. Amy is _ (fast) swimmer of the six students.7. Millies drawing is _ (beautiful) Simons.8. Sandys drawing is _ (beautiful) in her class.9. Millies English is _ (good) Simons. Millies English is _ (good) in her class.the fastestmore beautiful thanthe most beautifulbetter thanthe best一、一、英语中形容词通常有三种等级英语中形容词通常有三种等级 原原级、比较级和最高级，用来描述人或事物级、比较级和最高级，用来描述人或事物在某个方面的不同程度。其中比较级的构在某个方面的不同程度。其中比较级的构成分为规则变化（分为长词变化规则和短成分为规则变化（分为长词变化规则和短词变化规则两类）以及不规则变化。词变化规则两类）以及不规则变化。如：如：long longer longest, important more important most important, many/much more most二、二、当把两个人或事物作比较时要用比当把两个人或事物作比较时要用比较级。即：两者之间用比较级。如：较级。即：两者之间用比较级。如： Who is more generous, Kitty or Sandy? 三个及以上的人或事物之间进行比三个及以上的人或事物之间进行比较时要用最高级，即三者及以上用最高较时要用最高级，即三者及以上用最高级。如：级。如：Whose drawing is the most beautiful, Millies, Sandys or Amys?三、三、比较级常和比较级常和than连用，最高级常和连用，最高级常和三者及以上的范围连用，如三者及以上的范围连用，如: in her class, of the three, of all, among the six students, in China等等等等。一、单项选择。一、单项选择。1. Which is _, the sun, the moon or the earth? A. big B. bigger C. biggest D. the biggest2. She is _ swimmer among them. A. good B. best C. better D. the bestExercise3. Her drawing is _ than the other three. A. beautiful B. more beautiful C. the most beautiful D. the more beautiful4. Whose bike is _, his or hers? A. new B. newwer C. the newest D. newer二、翻译句子。二、翻译句子。1. 这台电脑比那台贵。这台电脑比那台贵。 This computer is _ that one. 2. 这三个盒子哪一个最重？这三个盒子哪一个最重？ Which box is _?3. 今天比昨天热吗？今天比昨天热吗？ Is today _ yesterday?more expensive thanthe heaviest of the threehotter than4. 在这些学生中，在这些学生中，Sandy数学最好。数学最好。 Sandy is _ _.5. 第一道数学题比第二道难得多。第一道数学题比第二道难得多。 The first maths problem is much _ the second one. the best at maths among these studentsmore difficult than 1. Remember the use of comparatives and superlatives of the adjectives.2. Preview the new words in the next lesson.