1A.形容词的比较级和最高级变化规则B.部分双音节与多音节的词比较级在原级之前加 more, 最高级在原级之前加 most beautiful-more beautiful-most beautiful构成 原级 比较级 最高级一般词尾加-er, -esttalllongoldsmalltallerlongeroldersmallertallestlongestoldestsmallest以字母 e 结尾的形容词或副词,直接加-r,-stnicefinelargenicerfinerlargernicestfinestlargest以重读闭音节结尾的形容词或副词,如末尾只有一个辅音字母,双写该字母,再加-er,-estbighotfatthinbiggerhotterfatterthinnerbiggesthottestfattestthinnest单音节和少数双音节单词以“辅音字母 +y”结尾的形容词或副词，把 y 变为 i，再加-er,-estheavybusyearlyeasyheavierbusierearliereasierheaviestbusiestearliesteasiest2interesting-difficult- C.不规则变化的形容词: little / few（原形） - less （比较级）- least（最高级）good（原形） - better（比较级） - best（最高级）bad （原形） - worse（比较级） - worst（最高级）far （原形）- furtherfurthest例句：Tom is tall. John is tall. Bob is tall. Im as tall as you.Tom is as tall as John.Bob is taller than John.John is the tallest of the three.John is the tallest in his class.写出以下各形容词的比较级和最高级：1. nice _ 2. fat _3. slow _ 4. dry _5. happy _ 6. wet _7. much _ 8. ill _39. little _ 10. bad _11. thin _ 12. far _13. early _ 14. careful_15. exciting _ 16. busy _2. 根据句意，用所括号内所级形容词的比较等级形式填空：1. Mr. Smith is _ man in this office. (rich)2. Winter is _ season of the years. (cold)4. It is much _ today than yesterday. (hot)5. She is a little _ than her classmates. (careful)6. _ people came to the meeting than last time. (many)7. Which book is _, this one or that one? (easy)8. My room is _ than yours. (small)9. Hainan is _ from Beijing than Hunan. (far)10. Skating is _ than swimming. (exciting)11. Jim is _ than all the others. (honest)12. Things are getting _ and _. (bad)13. The higher you climb, the _ it will be. (cold)14. Now his life is becoming _ and _. (difficult)用适当形式填空：1. Bob is _ ( young ) than Fred. but _ (tall) than Fred. 42. Almost all the students faces are the same ,but Li Deming looks _ (fat) than before after the summer holidays. 3.Which is _ (heavy), a duck or a chicken? 5.- How _ (tall) is Sally? -She s 1.55 metres _ (tall). What about Xiaoling? - She s only 1.40 metres _ (tall). She is much _ (short) than Sally. She is also the _ (short) girl in the class. 6. He is _ (bad) at learning maths. He is much _ (bad) at Chinese and he is the _ (bad) at English. 7. Annie says Sally is the _ (kind) person in the world. 8. He is one of the_(friendly) people in the class, I think. 9. A dictionary is much _ (expensive) than a story-book.10. An orange ia a little _ (big) than an apple, but much _ (small) than a watermelon.11. The Changjiang River is the _ (long) river in China.12. Sue is a little _ (beautiful) than her sister.14.-How difficult is physics?-I m not sure.5- Is it _ (difficult) than maths?- I don t think so.15.- Annie plays the piano very _ (well).- Sue plays it _ (well) than Annie. And Sally plays it the _ (well).16. Saturday is my _ (busy) day in a week.17. Her mother is getting _(fat) and _ (fat).18. I think it s too expensive. I d like a _ (cheap) one.19. He comes to school much _ (early) than I. 21. Your classroom is _(wide)and _(bright) than ours. 22. Practise as _ (much) as you can. 23. The _ (much), the _ (good). 24. Nowadays(现在) English is _( important )than any other subject, 1 think. 25. Most of the students think a lion is much _(dangerous) than a bear and It is the _ (dangerous) animal in the world.