1.31比较级与最高级1.直接在词尾加er和est如:tall ,small ,clean ,short quick cheap long…2.以e结尾的单词在词尾加r和st如: fine ,nice, free ,blue , safe, large wide…3.辅音字母加y的单词改y为i加er和est如: happy ,easy, pretty, heavy, funny , healthy early… 4.重读闭音节单词双写最后一个字母加er和est 如:big ,red ,thin ,slim ,wet ,hot, fat ,sad，glad…5.多音节单词和★部份双音节、少数单音节单词在词前加more和most. dangerous ,interesting ,expensive , important,popular, friendly ,polite,tired…6.特殊形式:1).good--better –best 2).well—better—best 3).bad/badly—worse—worst 4).ill —worse—worst 5)many—more—most 6).much—more—most 7).little—less—least 8).old—older—oldest 9).old—elder—eldest 10).far—farther—farthest（具体）11).far—further—furthest(抽象意义)★注意：much, still ,a little, even，far, a bit, a great deal…后经常使用形容词或副词的比较级只有一个音节：单音节词；两个音节：双音节词；三个及以上：多音节词音节：一个单词里有多少个元音发音确实是几音节词。
一样有几个元音字母确实是几音节词大多数形容词（性质形容词）和副词有比较级和最高级的转变，即原级、比较级和最高级，用来表示事物的品级不同。
原级即形容词的原形，比较级和最高级有规那么转变和不规那么转变两种。
1) 规那么转变单音节词和少数双音节词，加词尾-er，-est来组成比较级和最高级。
组成法原级比较级最高级一样单音节词未尾加-er,-est ：tall(高的) taller tallestgreat(庞大的) greater greatest以不发音的e结尾的单音词和少数以- le结尾的双音节词只加-r,-st ：nice(好的) nicer nicest large(大的) larger largestable（有能力的) abler ablest以一个辅音字母结尾的闭音节、单音节词，双写结尾的辅音字母，再加-er，-est：如，big(大的) bigger biggest hot热的) hotter hottest"以辅音字母+y"结尾的双音节词，改y为i，再加-er，-estEasy easier easiest busy busier busiest少数以-er，-ow 结尾的双音节词末尾加-er，-estclever(伶俐的) cleverer cleverest narrow(窄的) narrower narrowest 其他双音节词和多音节词，在前面加more，most来组成比较级和最高级。
easily more easily the most easilyImportant more important the most important2) 不规那么转变原级比较级最高级Good better bestbad worse worstold older/elder oldest/eldestmuch/many more mostlittle less leastfar farther/further farthest/furthest注意：1）要幸免重复利用比较级。
(错) He is more cleverer than his brother.(对) He is more clever than his brother. (对) He is clever than his brother.2）要幸免将主语含在比较对象中。
(错) China is larger that any country in Asia. (对) China is larger than any other countries in Asia.3）要注意对应句型，遵循前后一致的原那么。
The population of Shanghai is larger than that of Beijing.It is easier to make a plan than to carry it out.4）要注意冠词的利用，后出名词的时候，前面才有可能出名词。
（一）写出以下形容词与副词的比较级与最高级形式：long_____ ______ wide _____ ____ fat ____ _____heavy__________slow _____________ few____ _____brightly___________ far________ quickly ___________happy___________ unhappy________(二)用所给词的正确形式填空：1. Of the two girls, I find Lucy the _______ (clever).2. Gold(黄金) is ______ (little) useful than iron(铁).3. My sister is two years _______ (old ) than me.4. John’s parents have four daughters, and she is the _____ (young) child.5. The _____ (cheap) bags are the not usually the best ones.6. The short one is by far _______ expensive of the five.7. The boy is not so ______ (interesting) as his brother.8. Dick sings _____ (well), she sings ______(well) than John, but Mary sings______(well) in her class.9. She will be much ______ (happy) in her mew house.10. This dress is ______ that.(twice, as…as…, expensive)1. When we speak to people, we should be .A. as polite as possibleB. as polite as possiblyC. as politely as possibleD. as politely as possibly2. This book is____ that one, but____ than that one. A. as difficult as; expensiveB. as more difficult as; more expensiveC. as difficult as; more expensiveD. more difficult as; as expensive3. I think the story is not so ___ as that one.A. interestingB. interestedC. more interestingD. most interesting4. His father began to work____ he was seven years old.A. as old asB. as early asC. sinceD. while5. I think science is _ than Japanese.A. much importantB. importantC. much more importantD. more much important6. This pencil is___ than that one.A. longestB. longC. longerD. as long7. These children are ____ this year than they were last year.A. more tallB. more tallerC. very tallerD. much taller8. It was very hot yesterday, but it is___ today.A. even hotterB. more hotterC. much more hotD. much hot9.When we arrived, we found the meeting room crowded with___students. A. quite a few B. only a few C. few D. a few quite10 .The house is ____small for a family of six.A. much tooB. too muchC. very muchD.so。