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1、形容词和副词的比较级和最高级重点 : 1、了解形容词、副词比较级以及最高级的构成规则；2、了解形容词、副词比较等级的用法。热身练习一、口语训练1、用正确的语音、语调朗读下列短文。The sea looks very beautiful when the sun is shining on it. It can be very terrible when there is a strong wind.The sea is very big. It covers three quarters of the earth. The sea is also very deep in some place
2、s. There is one place-the sea is about 11 kilometres deep there. The highest mountain in theworld is about 9 kilometres high. If that mountain was put into the sea at that place, there would still be 2 kilometres of water above it.In most part of the sea, there are lots of plants. Some live near the
3、 top of the sea, others live deep down. There are also a lot of small living things. Lots of fish live by eating them.The sea can be very cold. When people go down, the sea becomes colder and colder. Only some men can go down into deep sea. But in 1970, five women scientists live in the deep sea for
4、 fourteen days.2、根据实际情况回答问题。3、根据提示说话。假如你是李华，你向全班同学介绍上周星期六与好朋友刘军一起去参观了广州动物园，你们看到了很多动物，玩得很高兴。请用至少六句话来描述。二、找出上面短文中的形容词和副词，并且试试说出它们的用法。精讲部分一 . 形容词和副词在使用时都有三个级别：原级、比较级、最高级。例： (small smaller smallest) (tall taller tallest) (hard harder hardest) 比较级和最高级的构成有规则和不规则的变化两种1规则变化单音节词和少数双音节词，在词尾加- er ，- est 来构成比较级
5、和最高级 。多音节词，加 more， most 构成比较级和最高级构成法原级比较级最高级一般单音节词尾加 - er，- estalltallertallest单greatgreatergreatest音strongstrongerstrongest节以不发音的 e 结尾的单音nicenicernicest词词，只加 - r，- stlargelargerlargestlatelaterlatest以一个辅音字母结尾的闭音节单音词， 双写结尾的辅音字母再加 -e r， -e st双 以辅音字母 + y 结尾的双音 音节词，改 y 为 i 再加 -e r，节 -e st词多音 在前面加 more,
6、 most来构节 成比较级和最高级词2. 不规则变化原级goodwellbigbiggerbiggesthothotterhottestfatfatterfattesteasyeasiereasiestbusybusierbusiestearlyearlierearliestimportantmore importantmost importantbeautifulmore beautifulmost beautifulhappilymore happilymost happily比较级最高级betterbestbadworseworstillOldolderoldestmuch, manym
7、oremostLittlelessleastFarfarther / furtherfarthest / furthest二 . 形容词和副词的比较级和最高级的用法1 as + 原级 + as表示“与一样”The painting is as beautiful as that one这幅画和那幅画一样漂亮。 (形容词 )He sings as well as his teacher. 他唱得和他的老师一样好。 （副词）注意：在否定句中可用not as(so) + 原级 + as 与 不一样，不及 例： It is not as (so) cold in Shanghai as in Beij
8、ing in winter (形容词 )冬天上海的天气没北京的天气冷。The girl doesnrunt as quickly as the boy. ；女孩跑得不如男孩快。（副词）2比较级 + than表示“比更 ”This hotel is cheaper than that one across the street这家宾馆比街对面那家更便宜。(形容词 )It is quicker to take a undergroundthan to take a bus坐地铁比坐公交车快。 (形容词 )Mary writes more carefully than Tom. Mary 写得比 T
9、om 更认真。（副词）3比较级 + 比较级表示： ”越来越 ”It is getting colder and colder these days这些天天气越来越冷。(形容词 )The bus is more and more crowded 公交车上越来越挤。 (形容词 )The people are living more and more happily人们生活得越来越幸福 （副词）4. The +比较级 , the +比较级表示“越-，越 -。”The more,the better.5 the + 最高级+ 比较范围表示 “(三者或三者以上 ) 最 ”Of all the four
10、brothers he is the cleverest在四个兄弟中，他是最聪明的。He is the best in maths of them all在他们所有人中他数学最好He jumps the highest in his class. 他在班中跳得最高。注意：1. “as + 原级 + as(not as(so) + 原级+ as)” 和“比较级+ than”者之间的比较，用于两2. 最高级用于三者以上之间的比较3. 形容词最高级必须加定冠词 the, 但副词最高级可以加也可以不加定冠词 the例如： The Changjiang River is the longest rive
11、r in China. ( 形容词 )She dances(the) most beautifullyin her class. （副词）4. much + 比较级表示“得多”例如：much bigger,much more difficult ,much longer.much more interestingExercise(比较级和副词 )一 . A. 写出下列形容词或副词的比较级和最高级1. near _high_2. warm _clever_3. white _blue _4. nice _gentle_5. safe _wide_6. close _long_7. heavy _sunny_8. early _dry _9. busy _happy _10. easy _angry _11. windy _little _12. thin _fat _13. hot _big _ _14. wet _good_15. bad _well _ _16. badly _many_
