Unit 7 What's the highest mountain in the world? 第3课时 Section A (Grammar Focus -4c)(教学课件)(共35张PPT)-2

(共35张PPT)
老师：XXX
班级：XXX
Section A Grammar Focus-4c
Unit 7
What’s the highest mountain in the world
1.能正确运用形容词副词的比较级和最高级进行事物间的比较；
2.能用大数描述和谈论自然地理概述。
1.进一步掌握比较级最高级的构成；
3.通过观察和对比，熟练掌握形容词和副词比较级和最高级的运用。
鼓励学生仔细观察并善于发现总结规律。
培养学生热爱大自然的思想。
1
Review
2
Grammar
3
Presentation
4
Practice
5
Summary
6
Homework
CONTENTS
Part 1
Review
So much beautiful scenery !
Please use the comparisons with adjectives and adverbs
to describe.
Review
Review
Qomolangma
It is the highest mountain in the world.
It is 8,848.86 meters high.
It‘s higher than any other mountain in the world.
No mountain in the world is
as high as Qomolangma.
Review
the Nile
It is the longest river in the world.
It is 6,671 kilometers long.
It‘s longer than any other river in the world.
No river in the world is as long as the Nile.
Review
It is the --est ... in the world.
It is ...
It‘s --er than any other ...in the world.
No ...in the world is as ... as ...
the Sahara
The Caspian Sea
Free talk
Suppose Peter is the tallest student in the class.You can say,
Peter is taller than any other student in the class
Good job!
Today, Let’s learn to use the comparisons with adjectives and adverbs.
No student in the class is as tall as Peter.
Peter is much taller than ...
Mike is almost as tall as Peter.
He is one of the tallest students in the class .
Part 2
Grammar
What’s the highest mountain in the world Qomolangma.
How high is Qomolangma It’s 8,848.86 meters high. It’s higher than any other mountain.
Which is the deepest salt lake in the world The Caspian Sea is the deepest of all the salt lakes.
Did you know that China is one of the oldest countries in the world Yes, I did. It’s much older than the US.
Underline the comparatives and superlatives.
Grammar Focus
比较级表达最高级含义
形容词和副词的三个等级
Grammar Focus
原级
比较级
最高级
两者间
“一样...”
两者比
“更...”
三者及以上比
“最...”
一、同级比较
Grammar Focus
形
容
词
副词
原级
用
法
否定
形式
not + so (as) +原级+as(不如…那样)
English is not so difficult as science.
英语不如科学那样复杂。
肯定
形式
as+原级+as(像……一样)
He runs as fast as you.
他和你跑得一样快。
一、同级比较
Grammar Focus
China is almost as ____(big) as the US.
Tom runs as _____(fast) as Sam.
Lily studies not as____ (hard) as Amy .
big
hard
fast
二、形容词和副词比较级和最高级的构成
Grammar Focus
二、形容词和副词比较级和最高级的构成
Grammar Focus
形
容
词
比较级
最高级
构
成
一、形容词副词比较级的规则变化：
1.一般单音节词末尾加-er, -est ，
small smaller smallest ；hard－harder－hardest
2.以不发音的e结尾的单音节词加-r,-st，
nice nicer nicest；wide－wider－widest
3.以辅音字母+y结尾的双音节单词，先把y变为i，再加-er,-est
early earlier earliest
4.以一个辅音字母结尾的重读闭音节单词，双写末尾字母再加-er,-est
red redder reddest
5.部分双音节词或多音节词在原级前加more,most
interesting more interesting most interesting
slowly more slowly most slowly
二、形容词比较级+最高级的不规则变化：
good better best bad/ill worse worst
little less least many/much more most
far farther(further) farthest(furthest)
三、形容词和副词比较级的运用
Grammar Focus
形
容
词
副词
比较级
用
法
2.less＋原级＋than + B “A不如B...”
The book is less interesting than that one. 这本书不如那本书有趣。
3.the＋比较级，the＋比较级，“越……，越……”，
The busier the old man is,the happier he feels. 那老人越忙越高兴
1.比较级+than (比……) “A比B更...”
Jim is older than Geoffrey. Jim比Geoffrey大一些。
4.具体数字、实物、倍数等+比较级+than，与具体倍数比较。
He is a head taller than I. 他比我高一个头。
This box is three times bigger than that one. 这个箱子是那个的三倍大。
5.比较级表示最高级
比较级 + than + any other + 可数名词单数：
= 比较级 + than + the other + 可数名词复数
= 最高级 + 可数名词单数 “比其他任何都...”
The Nile is longer than any other river in the world.
=The Nile is longer than the other rivers in the world.
=The Nile is the longest river in the world.
尼罗河比世界上其他任何一条河都长。
修饰比较级程度：
a little, a bit, much, even, a lot, far
Grammar Focus
China is much older than the US.
Who is taller, Li Ming or Sam
The Nile is longer than any other river in the world.
The busier she is, the happier she feels.
三、形容词和副词比较级的运用
四、形容词和副词最高级的运用
Grammar Focus
形
容
词
最高级
用
法
1.The +最高级+of (in) (最……)
Spring is the best season of the year. 春季是一年中最好的季节。
He works hardest in his class. 他是班上学习最用功的一个。
4.疑问词 + be/动词 + the + 最高级, A, B or C？“ABC中，哪一个最...”
Who runs the fastest, Lily, Lucy or Ben 谁跑得最快，莉莉，露西还是本
3.“one of the+ 最高级+可数名词复数+in/of短语”， …是最…的之一
例：Miss Li is one of the most popular teachers in our school.
李老师是我们学校最受欢迎的老师之一。
2.“the+序数词+最高级+可数名词单数+in/of短语” “…是第…最…的”
例：The Yellow River is the second longest river in China.
黄河是中国第二长河。
注意：最高级前不加the的情况。
1)最高级前有物主代词时，不再加the。
Wu Fen is my best friend. 吴芬是我最要好的朋友
2)如果两个最高级并列修饰同一个名词,第二个最高级前不加the
He is the youngest and tallest boy in his class.
他是班上年龄最小、个子最高的男孩。
形容词最高级前必须加the；
副词最高级前的
the可省略。
Grammar Focus
Who is the tallest, Li Ming, Tom or Sam
China is one of the oldest countries in the world.
Amy works (the) hardest in Class 3.
Canada is the second largest country in the world.
四、形容词和副词最高级的运用
Part 3
Presentation
Fill in the blanks with the correct forms of the words in the box.
4a
Key words are helpful.
1. The Amazon River is one of the _________ rivers in the world. It’s a little ________ than the Yangtze River.
2. Qomolangma is 8,848.86 meters _______. It’s one of the most __________ places for serious mountain climbers.
3. No ocean in the world is as ________ as the Pacific Ocean.
4. Although Japan is _______ than Canada, it is ________ smaller.
big
much
popular
long
old
high
longest
longer
high
popular
big
older
much
太平洋
Presentation
Presentation
Write two comparisons about two topics. Write true facts.
4b
e.g. Two rivers: the Yangtze River and the Amazon River
The Yangtze River is almost as long as the Amazon River.
The Amazon is longer than the Yangtze, but the Yangtze is the longest river in China.
Presentation
Write two comparisons about two topics. Write true facts.
4b
Two cities: ________________ and _______________
________________________________________________
________________________________________________
________________________________________________
Shanghai Sydney
Shanghai is not as big as Sydney.
Sydney is much bigger than Shanghai.
Sydney is almost 2 times as big as Shanghai.
Area:12368 sq km
Area:6340 sq km
Presentation
Write two comparisons about two topics. Write true facts.
4b
Two animals: ________________ and _______________
________________________________________________
________________________________________________
________________________________________________
A panda is not as tall as an elephant .
panda elephant
An elephant is much heavier than a panda.
A panda is a lot lighter than an elephant .
Presentation
Write five questions using comparisons.
Then ask your partner your questions.
4c
1._____________________________________________________
2._____________________________________________________
3._____________________________________________________
4._____________________________________________________
5._____________________________________________________
What is the highest building in our city
What is the busiest subway station in our city
What is the largest shopping mall in our city
Which is the biggest park in our city
Which is the longest road in our city
Part 4
Practice
4．This detective story is _______ than the one I read last night.
A．attractive B．more attractive
C．most attractive D．the most attractive
5．—What’s the second ________ river in China
—The Yellow River.
A．longer B．the longer C．longest D．the longest
6．Katie is ________ of the three girls in her family.
A．young B．younger C．the younger D．the youngest
一、单项选择
Practice
B
C
D
1. China is _______ (large) than any other country in Asia.
2. Our city is becoming more and more _________ (beautiful).
3. The _____ (much) we do for the old people, the _______ (happy) we’ll be.
4. My brother is the ______ (tall) of the two boys in the picture.
5. Her bedroom is twice _________ (big) than mine.
6. Mrs. Smith looks much __________ (young) with her new hairstyle.
7. China is one of __________________(ancient) countries in the world.
8. The Yellow River is the second ________ (long) river in China.
二、用括号中所给单词的适当形式填空
Practice
taller
larger
beautiful
more
happier
longest
bigger
younger
the most ancient
Part 5
Summary
Summary
Summary
形
容
词
比较级
最高级
构
成
一、形容词副词比较级的规则变化：
1.一般单音节词末尾加-er, -est ，
small smaller smallest ；hard－harder－hardest
2.以不发音的e结尾的单音节词加-r,-st，
nice nicer nicest；wide－wider－widest
3.以辅音字母+y结尾的双音节单词，先把y变为i，再加-er,-est
early earlier earliest
4.以一个辅音字母结尾的重读闭音节单词，双写末尾字母再加-er,-est
red redder reddest
5.部分双音节词或多音节词在原级前加more,most
interesting more interesting most interesting
slowly more slowly most slowly
二、形容词比较级+最高级的不规则变化：
good better best bad/ill worse worst
little less least many/much more most
far farther(further) farthest(furthest)
Summary
Summary
形
容
词
副词
比较级
用
法
2.less＋原级＋than + B “A不如B...”
The book is less interesting than that one. 这本书不如那本书有趣。
3.the＋比较级，the＋比较级，“越……，越……”，
The busier the old man is,the happier he feels. 那老人越忙越高兴
1.比较级+than (比……) “A比B更...”
Jim is older than Geoffrey. Jim比Geoffrey大一些。
4.具体数字、实物、倍数等+比较级+than，与具体倍数比较。
He is a head taller than I. 他比我高一个头。
This box is three times bigger than that one. 这个箱子是那个的三倍大。
5.比较级表示最高级
比较级 + than + any other + 可数名词单数：
= 比较级 + than + the other + 可数名词复数
= 最高级 + 可数名词单数 “比其他任何都...”
The Nile is longer than any other river in the world.
=The Nile is longer than the other rivers in the world.
=The Nile is the longest river in the world.
尼罗河比世界上其他任何一条河都长。
Summary
Summary
形
容
词
最高级
用
法
1.The +最高级+of (in) (最……)
Spring is the best season of the year. 春季是一年中最好的季节。
He works hardest in his class. 他是班上学习最用功的一个。
4.疑问词 + be/动词 + the + 最高级, A, B or C？“ABC中，哪一个最...”
Who runs the fastest, Lily, Lucy or Ben 谁跑得最快，莉莉，露西还是本
3.“one of the+ 最高级+可数名词复数+in/of短语”， …是最…的之一
例：Miss Li is one of the most popular teachers in our school.
李老师是我们学校最受欢迎的老师之一。
2.“the+序数词+最高级+可数名词单数+in/of短语” “…是第…最…的”
例：The Yellow River is the second longest river in China.
黄河是中国第二长河。
注意：最高级前不加the的情况。
1)最高级前有物主代词时，不再加the。
Wu Fen is my best friend. 吴芬是我最要好的朋友
2)如果两个最高级并列修饰同一个名词,第二个最高级前不加the
He is the youngest and tallest boy in his class.
他是班上年龄最小、个子最高的男孩。
Part 6
Homework
Homework
1.Memorize the important sentences.
2. Preview the new words of Section B.