1、Unit 1,Unit 1 Friends,Comparative and superlative adjectives,Grammar,Presentation,The air is bad.,The air is worse.,The air is the worst.,bad worse worst,e.g. The girls height is one metre.,height n. 高度，身高,e.g. He wants to lose weight by exercising.,weight n. 重量；体重,e.g. They are having a competition
2、.,competition n. 竞赛，比赛,worse (bad的比较级)更坏，更差 worst (bad的最高级)最坏，最差 height 高度；身高 weight 重量；体重 sec. (= second) 秒 competition 竞赛，比赛；竞争 test 测试，考查 swimmer 游泳者,Read aloud these new words.,Warming up,He is taller than I am.,他比我高。,Yao Ming is the tallest of the three.,姚明是三位中最高的。,My book is more interesting t
3、han his.,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。,形容词通常有三种形式: 原级，比较级和最高级，用来表示人或事物在某方面的不同程度。如：,(Comparative and superlative adjectives),形容词比较级和最高级,形容词比较级和最高级形式,词尾er,词尾est,taller,tallest,smaller,smallest,一、规则变化,把 y 改成 i + er,+ st,nicer,nicest,finer,finest,把 y 改成 i + est,prett
4、ier,+ r,easier,prettiest,easiest,双写最后一个辅音字母 + est,slimmer,slimmest,bigger,biggest,双写最后一个辅音字母 + er,前面 + more,前面 + most,more beautiful,more important,most beautiful,most important,better,best,worse,worst,二、不规则变化,less,least,more,most,older/elder,oldest/eldest,farther/ further,farthest/ furthest,funnier
5、,funniest,worse,healthier,worst,healthiest,more careful,most careful,larger,largest,smarter,smartest,slimmer,slimmest,Complete the table below.,Daniel is writing about his classmates. Help him complete the following table with the correct adjectives.,bigger,biggest,cutest,cuter,shorter,shortest,happ
6、ier,happiest,lazier,laziest,better,best,worse,worst,sadder,saddest,more difficult,most difficult,more interesting,most interesting,1. 两者之间用比较级。句型结构：A + be + 比较级 + than + B 2. 三者及以上用最高级。句型结构：A + be the + 最高级 + 表三者及以上 的范围,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 interesti
7、ng 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.,1. Simon is _ (tall) Sandy. 2. Peter is _ (tall) of the six students. 3. Sandy is _ (heavy) Millie. 4. Peter is _
8、(heavy) of the six students. 5. Among the six students, Millie is _ (slow) swimmer.,taller than,the tallest,heavier than,the heaviest,the slowest,6. Amy is _ (fast) swimmer of the six students. 7. Millies drawing is _ (beautiful) Simons. 8. Sandys drawing is _ (beautiful) in her class. 9. Millies En
9、glish is _ (good) Simons. Millies English is _ (good) in her class.,the fastest,more beautiful than,the most beautiful,better than,the best,一、英语中形容词通常有三种等级 原级、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。如：long longer longest, important more important most important, many/much
10、 more most,语法小结,二、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：Who is more generous, Kitty or Sandy?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级。如： Whose drawing is the most beautiful, Millies, Sandys or Amys?,三、比较级常和than连用，最高级常和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。,一、单项选择。 1.
11、 Which is _, the sun, the moon or the earth? A. big B. bigger C. biggest D. the biggest 2. She is _ swimmer among them.A. good B. best C. better D. the best,Exercises,3. Her drawing is _ than the other three.A. beautiful B. more beautifulC. the most beautiful D. the more beautiful 4. Whose bike is _
12、, his or hers?A. new B. newwer C. the newest D. newer,二、翻译句子。 1. 这台电脑比那台贵。This computer is _ that one. 2. 这三个盒子哪一个最重？Which box is _? 3. 今天比昨天热吗？Is today _ yesterday?,more expensive than,the heaviest of the three,hotter than,4. 在这些学生中，Sandy数学最好。Sandy is _ _. 5. 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 students,more difficult than,1. Remember the use of comparatives and superlatives of the adjectives. 2. Preview the new words in the next lesson.,Homework,Thank you!,
