Unit7_SectionA（Grammar_Focus-4c）精品课件.ppt

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1、初中英语人教版八年级下Unit7Whatsthehighestmountainintheworld?Section A（Grammar Focus-4c）Review1Presentation2Exercise3Liu Xiang is taller than Zhou Jielun.Zhou Jielun is tall.Yao Ming is the tallest of them.姚明刘翔周杰伦Lookandsay Whats the _ mountain in the world?(high)Qomolangma.How high is Qomolangma?Its 8,844.43

2、meters high.Its _ than any other mountain.(high)highesthigherReviewFill in the blanks.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?Yes,I did.Its much _(old)than the US.deepestdeepestol

3、destolderPresentation一、构成规则原级比较级最高级（1）一般单音节词在词尾加-er和-estlongfastlongerfasterlongestfastest（2）以“e”结尾的单音节词在词尾加-r和-stnicelatenicerlaternicestlatest规则变化规则变化规则原级比较级最高级（3）重读闭音节，词尾只有一个辅音字母，须双写最后一个辅音字母，再加-er或-estbighotsadgladbiggerhottersaddergladderbiggesthottestsaddestgladdest（4）辅音字母+y结尾，变y为i，再加-er和-esthe

4、avyangryfunnyheavierangrierfunnierheaviestangriestfunniest规则变化规则变化不规则变化不规则变化原级比较级最高级good/well好的better更好的best最好的bad差的，ill坏的worse更差的；更坏的worst最差的；最坏的many/much多的more更多的most最多的little少的less更少的least最少的不规则变化不规则变化原级比较级最高级old年老的；古老的older较老的；较旧的oldest最老的；最旧的；最年长的elder年长的eldest最年长的far远的farther（指距离）更远的farthest（指

5、距离）最远的further（指距离和抽象概念）较深远的furthest（指距离和抽象概念）最深远的二、常见用法原级原级句型例句(1)“as+形容词原级+as”，在否定句中用“not so.as”结构Lucy is not so tall as Lily.露西不如莉莉高。(2)倍数+as+形容词原级+asOur school is three times as big as theirs.我们的学校是他们的三倍大。用法例句(1)双方比较，表示一方超过另一方时，用“比较级+than”结构China is larger than Italy.中国比意大利大。(2)用于“less+原级+than”（注

6、意此结构不用于单音节词）The book is less interesting than that one.这本书不如那本书有趣。(3)倍数+比较级+thanThe box is three times bigger than that one.这个箱子是那个的三倍大。比较级比较级用法例句(4)“比较级+and+比较级”表示“越来越”Our country is becoming stronger and stronger.我们的国家正变得越来越强大。(5)“the+比较级，the+比较级”表示“越，就越”The more,the better.多多益善。(6)the+比较级+of the

7、two+名词复数The taller of the two boys is my brother.两个男孩中，较高的那一个是我的哥哥。比较级比较级用法例句(1)the+形容词最高级+名词+表示范围的短语或从句Spring is the best season of the year.春天是一年中最好的季节。(2)“one of the+最高级+复数名词”表示“最之一”Kobe is one of the best basketball players in NBA.科比是NBA最好的篮球运动员之一。最高级最高级1.Ourfamilyhasboughtacarsowecantravel_than

8、before.A.mosteasilyB.lesseasilyC.easilyD.moreeasily2.Myfathertoldmeastorylastnight.Itis_oneIveeverheard.A.thefunniestB.funniestC.funnierD.thefunnierDA活学活用活学活用3.The_friendsyouhave,the_youwillbe.A.more,happyB.many,happyC.more,happierD.many,happier4.Whenheheardacryforhelp,heranoutas_ashecould.A.hardlyB

9、.quicklyC.finallyD.slowlyCBFill in the blanks with the correct forms of the words in the box.big much popular 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 c

10、limbers.longestlongerhighpopular4a3.No ocean in the world is as _ as the Pacific Ocean.4.Although Japan is _ than Canada,it is _ smaller.bigoldermuchWrite 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

11、than the Yangtze,but the Yangtze River is the longest river in China.the Yangtze Riverthe Amazon River4b1.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 _ se

12、ason in Beijing?I think its autumn.A.good B.better C.best D.the best AAExerciseD4.Which is _,the sun,the moon or the earth?The moon.A.small B.smaller C.smallest D.the smallest5.I study English as _ as my brother.A.hard B.harder C.hardest DA7.Which is _,a bicycle or a computer?A.expensive B.more expensive C.the most expensive 8.The Yellow River is one of _ rivers in China.A.long B.longer C.the longest BCHomework:1.To memorize the important phrases and sentences.2.To make some sentences using as as,.times than,less than and more than.