形容词的最高级比较级课件

1、形容词的比较级和最高级一、形容词、副词的比较级和最高级的构 成规则1.一般单音节词比较级在后面加-er，最高级在后面加est.例如：smallsmallersmallest shortshortershortest talltallertallest greatgreatergreatest clever-cleverer-cleverest2.以不发音e结尾的单音节词，比较级在原级后加-r，最高级在原级后加-st； 如：largelargerlargest nicenicernicest ableablerablest 3在重读闭音节（即：辅音元音辅音）中，先双写末尾的辅音字母，比较级加-e

2、r，最高级加-est； 如：bigbiggerbiggest hothotterhottest 4. 以“辅音字母y”结尾的双音节词，把y改为i，比较级加-er，最高级加-est； 如：easyeasiereasiest heavyheavierheaviest busybusierbusiest happyhappierhappiest early- earlier-earliest5其他双音节词和多音节词，比较级在前面加more，最高级在前面加most； 如： beautifulmore beautifulmost beautifuldifferentmore differentmost

3、differenteasilymore easilymost easily 注意：（1）形容词最高级前通常必须用定冠词 the，副词最高级前可不用。6.有少数形容词、副词的比较级和最高级是不规则的，必须熟记。 如：goodbetterbest wellbetterbest bad/badly/illworseworst many/muchmoremost littlelessleast 2.表示A方和B方同等程度时，用句型：3表示A不如B时，用基本句式：（1）A+谓语的否定式+as/so+形容词或副词 的原级+as+B（2）A+谓语+less+形容词或副词的原级 +than+B A+谓语+as

4、+形容词或副词的原级+as+B例如：My ruler is as long as yours. He dances as well as Kate.例:1. He doesnt run as fast as his brother.= He runs less fast than his brother. =His room is less big than mine.2. His room isnt so big as mine. 3. She doesnt write write as carefully as Tom. =She writes less carefully than To

5、m.(4) The busier he is ,the happier he feels.6.表示“越来越.”常用“比较级+and+比较级” 如果比较级是加more的词，则变为“more and more+原级” 例：He is fatter and fatter. Its getting colder and colder. Our country is becoming more and more beautiful.English is becoming more and more important.7. 在含有or的选择疑问句中，如果有两者供选择，前面的形容词要用比较级形式。如果有三

6、者供选择，则用最高级形式 如：Who is taller,Tim or Tom? Which is the biggest, the earth, the moon or the sun? 8.形容词、副词的最高级形式主要用来表示三者或三者以上人或事物的比较，表示“最”的意思。 句子中有表示范围的词或短语。如：of .或 in .等等。 如：He is the tallest in our class. It is the most expensive of the three.9.如果of后面说的是两者，则前边用比较级， 且比较级前边要加the. 例如：He is the taller of

7、 the two boys.例如：TheYellow River is the second longest river in China.注意：要注意对应句型，遵循前后一致的原则。 The population of Shanghai is larger than that of Beijing. It is easier to make a plan than to carry it out. 比较级与最高级的转换Li lei is the tallest student in his class.Li lei is taller than any other student in his

8、 class.Li lei is taller than the other students in his class.Li lei is taller than anyone else in his class比较的对象不能相互包容，要牢记以下规则：根据句意，用所给词的比较级或最高级形式填空：1. There are boys than girls in our class. (few)2. Which book is , this one or that one? (easy)3. My room is than yours. (small)4 The population of Bei

9、jing is (large) than that of New York.5. Skating is than swimming. (exciting)6. This radio is not so as that one. (cheap)7. It is much today than yesterday. (hot)8. Winter is season of the years. (cold)9. Things are getting and . (bad)10. The you climb (high), the it will be. (cold)11. I think English is (interesting) than any other subject.12. She is (good) student Ive ever taught.13. Which is (big), the sun, the moon or the earth?14. Our city is one of (safe) citi