Unit7 What27s the highest mountain in the world SectionA(Grammar_Focus-4c)精品（課堂PPT）

1、初中英語(yǔ)人教版八年級(jí)下Unit7 Whats the highest mountain in the world?Section A（Grammar Focus-4c）2Learning aims: 1. 復(fù)習(xí)總結(jié)比較級(jí)及最高級(jí)的構(gòu)成及用法。 2. 運(yùn)用比較級(jí)和最高級(jí)對(duì)同類(lèi)事物進(jìn)行描述。3Liu Xiang is taller than Zhou Jielun .Zhou Jielun is tall .Yao Ming is the tallest of them.姚明劉翔周杰倫Look and say4 Whats the _ mountain in the world?(high) Qo

2、molangma. How high is Qomolangma? Its 8,844.43 meters high. Its _ than any other mountain.(high)highesthigherReviewFill in the blanks.5 Which is the_ (deep)salt lake in the world? The Caspian Sea is the _of all the salt lakes.(deep) Did you know that China is one of the _(old) countries in the world

3、? Yes, I did. Its much _(old) than the US. deepestdeepestoldestolder6Presentation一、構(gòu)成規(guī)則原級(jí)比較級(jí)最高級(jí)（1）一般單音節(jié)詞在詞尾加-er和-estlongfastlongerfasterlongestfastest（2）以“e”結(jié)尾的單音節(jié)詞在詞尾加-r和-stnicelatenicerlaternicestlatest規(guī)則變化規(guī)則變化7規(guī)則原級(jí)比較級(jí)最高級(jí)（3）重讀閉音節(jié)，詞尾只有一個(gè)輔音字母，須雙寫(xiě)最后一個(gè)輔音字母，再加-er或-estbighotsadgladbiggerhottersadderglad

4、derbiggesthottestsaddestgladdest（4）輔音字母+y結(jié)尾，變y為i，再加-er和-estheavyangryfunnyheavierangrierfunnierheaviestangriestfunniest規(guī)則變化規(guī)則變化8不規(guī)則變化不規(guī)則變化原級(jí)比較級(jí)最高級(jí)good/well好的better更好的best最好的bad差的，ill壞的worse更差的；更壞的worst最差的；最壞的many/much多的more更多的most最多的little少的less更少的least最少的9不規(guī)則變化不規(guī)則變化原級(jí)比較級(jí)最高級(jí)old年老的；古老的older較老的；較舊的old

5、est最老的；最舊的；最年長(zhǎng)的elder年長(zhǎng)的eldest最年長(zhǎng)的far遠(yuǎn)的farther（指距離）更遠(yuǎn)的farthest（指距離）最遠(yuǎn)的further（指距離和抽象概念）較深遠(yuǎn)的furthest（指距離和抽象概念）最深遠(yuǎn)的10二、常見(jiàn)用法原級(jí)原級(jí)句型例句(1)“as+形容詞原級(jí)+as”，在否定句中用“not so. . . as”結(jié)構(gòu)Lucy is not so tall as Lily. 露西不如莉莉高。(2)倍數(shù)+as+形容詞原級(jí)+asOur school is three times as big as theirs. 我們的學(xué)校是他們的三倍大。11用法例句(1)雙方比較，表示一方超過(guò)

6、另一方時(shí)，用“比較級(jí)+than”結(jié)構(gòu)China is larger than Italy. 中國(guó)比意大利大。(2)用于“l(fā)ess+原級(jí)+than”（注意此結(jié)構(gòu)不用于單音節(jié)詞）The book is less interesting than that one. 這本書(shū)不如那本書(shū)有趣。(3)倍數(shù)+比較級(jí)+thanThe box is three times bigger than that one. 這個(gè)箱子是那個(gè)的三倍大。比較級(jí)比較級(jí)12用法例句(4)“比較級(jí)+and+比較級(jí)”表示“越來(lái)越”O(jiān)ur country is becoming stronger and stronger. 我們的國(guó)家

7、正變得越來(lái)越強(qiáng)大。(5)“the+比較級(jí)，the+比較級(jí) ” 表 示 “ 越 ， 就越”The more, the better. 多多益善。(6)the+比較級(jí)+of the two+名詞復(fù)數(shù)The taller of the two boys is my brother. 兩個(gè)男孩中，較高的那一個(gè)是我的哥哥。比較級(jí)比較級(jí)13用法例句(1)the+形容詞最高級(jí)+名詞+表示范圍的短語(yǔ)或從句Spring is the best season of the year. 春天是一年中最好的季節(jié)。(2)“one of the+最高級(jí)+復(fù)數(shù)名詞”表示“最之一”Kobe is one of the bes

8、t basketball players in NBA. 科比是NBA最好的籃球運(yùn)動(dòng)員之一。最高級(jí)最高級(jí)141. Our family has bought a car so we can travel _ than before. most easily B. less easily C. easily D. more easily 2. My father told me a story last night. It is _ one Ive ever heard. the funniest B. funniest C. funnier D. the funnier DA活學(xué)活用活學(xué)活用1

9、53. The _ friends you have, the _ you will be. A. more, happy B. many, happy C. more, happier D. many, happier 4. When he heard a cry for help, he ran out as _ as he could. A. hardly B. quickly C. finally D. slowlyCB16Fill in the blanks with the correct forms of the words in the box.big much popular

10、 long old high1. The Amazon River is one of the _ rivers in the world. Its a little _than the Yangtze River.2. Qomolangma is 8,844.43 meters _. Its one of the most _ places for serious mountain climbers.longestlongerhighpopular4a173. No ocean in the world is as _ as the Pacific Ocean.4. Although Jap

11、an is _ than Canada, it is _ smaller.bigoldermuch18Write two comparisons about two topics. Write true facts.Two rivers: _ and _The Yangtze River is almost as long as the Amazon River.The Amazon is longer than the Yangtze, but the Yangtze River is the longest river in China.the Yangtze Riverthe Amazo

12、n River4b191. She is _ than _. A. busier / us B. busier / we C. more busy / us D. more busy / we 2. China is _ country in the world. A. the third largest B. the largest third C. the third large D. a third largest4. Which is _ season in Beijing? I think its autumn. A. good B. better C. best D. the be

13、st AAExerciseD204. Which is _, the sun, the moon or the earth? The moon is. small B. smaller C. smallest D. the smallest5. I study English as _ as my brother. A. hard B. harder C. hardest DA217. Which is _, a bicycle or a computer? A. expensive B. more expensive C. the most expensive 8. The Yellow River is one