资源简介

(共62张PPT)
Unit 7 What’s the highest mountain in the world
Section A 2d＆GF-4c
人教新目标版 八年级下册
主讲人：XXX
CONTENTS
目录
01
Review
03
Grammar
05
Summary
07
Exercises
02
Presentation
04
Practice
06
Language points
08
Homework
复习本单元目标句型, 熟练掌握形容词和副词比较级和最高级的运用，提升语言表达能力。
Language competence
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，能用大数描述和谈论自然地理概述, 培养总结归纳的能力。
Learning ability
通过观察、归纳等课堂活动，探究语法的语言规律,思考如何运用语法结构帮助我们提高英语的听、说、读、写的能力。
Thinking quality
了解我国的悠久历史、灿烂文化和大好河山, 培养对祖国的自豪感，对大自然的热爱之情。
Cultural awareness
Learning objectives
Part. 01
Review
Let’s review.
Qomolangma
No mountain in the world is ________ Qomolangma.
It is 8848.86 meters _____.
lt is ________ mountain in the world.
It is ______ than any other mountain in the world.
high
higher
the highest
as high as
How high is it
Let’s talk about geographical facts (地理事实).
Let’s review.
Let’s talk about geographical facts (地理事实).
No river in the world is ________ the Nile.
It is 6,671 kilometers _____.
lt is _________ river in the world.
It is ______ than any other river in the world.
long
longer
the longest
as long as
How long is it
the Nile
Let’s review.
Let’s talk about geographical facts (地理事实).
the Caspian Sea
No salt lake in the world is ________ the Caspian Sea.
It is 1025 meters _____.
lt is _________ salt lake in the world.
It is ______ than any other salt lake in the world.
deep
deeper
the deepest
as deep as
How deep is it
Let’s review.
Let’s talk about geographical facts (地理事实).
the Sahara
No desert in the world is __________ the Sahara.
It is 9600000 square kilometers _______.
lt is _________ desert in the world.
It is ______ than any other desert in the world.
in size
larger
the largest
as large as
How big is it
You can say,
Suppose Peter is the tallest studlent in the class. What can you see？
Let’s think.
Peter is the tallest students in the class.
Peter is taller than any other student in the class
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. 02
Presentation
Listen and answer the questions.
Let’s listen.
1. What is the conversation about
2. How long is the Ming Great Wall
3. What does the guide say about the wall
It’s about the Ming Great Wall.
It’s about 8,850 kilometers long.
It’s quite tall and wide.
It’s the longest wall in the world.
There are no man-made objects as big as this.
…
Listen and read.
Guide: Feel free to ask me anything on today’s Great Wall tour.
Tourist 1: How long is the wall
Guide: Ah, the most popular question! If we’re only talking about the parts from the Ming Dynasty, it’s about 8, 850 kilometers long. This makes it the longest wall in the world.
Tourist 2: Wow, that’s amazing! Why did the ancient emperors build the wall
Guide: The main reason was to protect their part of the country. As you can see, it’s quite tall and wide. As far as I know, there are no other man-made objects as big as this.
Tourist 3: Is Badaling part of the Ming Great Wall
Guide: Yes, it’s the most famous part.
(可以) 随便（做某事）,其后接动词不定式。
n. & v. 旅行；旅游
adj. 令人大为惊奇的；
令人惊喜（惊叹）的
adj. 古代的；古老的
n. 旅行者；观光者
v. 保护；防护
adj. 宽的；宽阔的
就我所知
adj. 人造的
不定式短语作表语
Let’s fill.
Fill in the blanks according to the conversation.
Guide: to ask me anything on today's Great Wall tour.
Tourist 1: is the wall
Guide: Ah, the most popular question! If we're only the parts from the Ming Dynasty, it's about 8, 850 kilometers long. This______ it the longest wall in the world.
Tourist 2: Wow, that's amazing! Why did the ancient emperors build the wall
Guide: The was to protect their part of the country. __________ _________,it’s quite tall and wide. , there are no other man-made objects as big as this.
Tourist 3: Is Badaling the Ming Great Wall
Guide: Yes, it's the most famous part.
Feel free
How long
talking about
makes
main reason
As you
can see
As far as I know
part of
Role-play the conversation.
2d
Part. 03
Grammar
Grammar focus
Grammar Focus
Let’s read and translate these sentences.
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.
Fill in the blanks according to grammar focus.
1. 世界上最高的山是什么
What’s ____ ________ _________ in the world
2. 珠穆朗玛峰。
_____________.
3. 珠穆朗玛峰有多高？
______ ______ is Qomolangma
4. 它有8848.86米高。它比其他任何一座山都高。
It’s 8,848.86 meters high. It’s _____ _____ ____ ____ mountain.
the highest mountain
Qomolangma
How high
higher than any other
Fill in the blanks according to grammar focus.
1. 世界上最深的盐水湖是哪个
Which is ______ ______ ______ ______ in the world
2. 里海是所有盐湖中最深的。
The Caspian Sea is ______ ______ _____ ______ the salt lakes.
3. 你知道中国是世界上最古老的国家之一吗？
Did you know that China is ______ ____ ______ ______ _____ in the world
4. 是的，我知道。它比美国古老得多。
Yes, I did. It’s ______ ______ ______ the US.
the deepest salt lake
the deepest of all
one of the oldest countries
much older than
Grammar focus
Grammar Focus
Read the following sentences and find the comparatives and superlatives.
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.
此句型用比较级表达最高级含义
形容词和副词的原级,比较级,最高级
原级
Positive form
比较级Comparative form
最高级Superlative form
没有比较含义,“……”
两者间比较,“更……”
三者及三者以上比较,“最……”
注意：某些形容词和副词只用原级，如：perfect，excellent，dead等。
形容词和副词的原级,比较级,最高级
大多数形容词和副词有三个等级：_____________________。比较级表示_________，用于__________的比较，说明“前者比后者更……”。形容词、副词的最高级用于_____________的人或事物之间的比较，常用_________来说明比较的范围。形容词最高级前要加_________，副词最高级前的the_______。
原级、比较级和最高级
“更……”
两者之间
三个或三个以上
of/in短语
定冠词the
可省略
比较级和最高级的变化规则
smart→_________→_________
tall→_________→_________
high→_________→_________
small→_________→_________
smarter
smartest
taller
tallest
higher
highest
smaller
smallest
一般在词尾直接加-er/-est
比较级和最高级的变化规则
wide→_______→_______
brave→_______→_______
large→_______→_______
cute→_______→_______
以字母e结尾的词(去e)加-r/-st
braver
bravest
wider
widest
larger
largest
cuter
cutest
比较级和最高级的变化规则
thin→_______→_______
fat→_______→_______
big→_______→_______
wet→_______→_______
thinner
thinnest
fatter
fattest
bigger
biggest
wetter
wettest
重读闭音节词词尾只有一个辅音字母时，先双写该辅音字母，再加-er/-est。
比较级和最高级的变化规则
lazy→_______→_______
easy→_______→_______
happy→_______→_______
heavy→_______→_______
以“辅音字母+y”结尾的双音节词，改“y” 为 “i”，再加-er/-est。
lazier
laziest
easier
easiest
happier
happiest
heavier
heaviest
比较级和最高级的变化规则
beautiful→_________ beautiful
interesting→_________ interesting
hard-working→_________ hard-working
popular→_________ popular
more/most
more/most
more/most
more/most
多音节词和部分双音节词, 比较级前加more，最高级前加most。
比较级和最高级的变化规则
good/well→_______→_______
bad/badly/ill→_______→_______
many/much→_______→_______
little→_______→_______
old→___________→___________
far→________________
→________________
more
most
less
lest
worse
worst
older/elder
oldest/eldest
farther/further
farthest/furthest
better
best
特殊不规则变化
形容词和副词的原级,比较级,最高级的用法
原级的用法
A baby panda is as cute as a baby elephant.
He studies as hard as his brother.
“as+形容词/副词原级+as”意为 “和……一样”
用于肯定句
形容词和副词的原级,比较级,最高级的用法
原级的用法
“not as/so+形容词/副词原级+as”意为 “和…不一样”
This mountain is not as/so high as that one.
He cannot run as/so fast as Jack.
用于否定句
形容词和副词的原级,比较级,最高级的用法
比较级的用法
“比较级+than…”意为 “比……更……一些”
This mountain is much higher than that one.
My mom got up earlier than me this morning.
形容词和副词的原级,比较级,最高级的用法
比较级的用法
The+比较级…, The+比较级… 意为“越……，越……”
Bajie, stop eating!
The more you eat,
the heavier you will be.
I just love the delicious food. I don't agree with you!
The more I eat,
The stronger I will be.
形容词和副词的原级,比较级,最高级的用法
比较级的用法
“比较级 + and + 比较级” 或 “more and more+ 形容词/副词原级”，表示 “越来越……”
The weather is getting colder and colder. We should wear more!
You are right, Wujing. The task will be more and more difficult, too.
形容词和副词的原级,比较级,最高级的用法
比较级的用法
当表示一方超过另一方的“程度”时，可以用much, a lot, a little, a bit, even, far等来修饰形容词比较级。注意：比较级不能用very, so, too等修饰。
The task is much more difficult.
The task is a lot more difficult.
The task is far more difficult.
Be optimistic(乐观的)! The task is just a little more difficult.
形容词和副词的原级,比较级,最高级的用法
比较级的用法
Who/Which+……+比较级, A or B
My mom is taller than my dad.
___________________________
Who is taller, My mom or my dad
The horse walks faster than the turtle.
_________________________
Which animal walks faster
形容词和副词的原级,比较级,最高级的用法
最高级的用法
主+be+形容词最高级+名词+范围。主+动词或动词短语+副词最高级(the可省略)+范围。
The Yangtze River is the longest river in China.
She jumps (the) farthest of the three.
最高级常与介词in或of短语连用表范围
形容词和副词的原级,比较级,最高级的用法
最高级的用法
“one of the+形容词最高级+可数名词复数” 表示 “最.....之一”。
Pandas are one of the most popular animals in the world.
The Yellow River is one of the longest rivers in the world.
形容词和副词的原级,比较级,最高级的用法
最高级的用法
Who/Which+……+最高级, A,B or C
dog
horse
cheetah/ t i t /
A：Which animals runs _________, dogs, horses or cheetahs (fast)
the fastest
B：The cheetahs.
形容词和副词的原级,比较级,最高级的用法
最高级的用法
the + 序数词 + 最高级 + 可数名词单数 + in/of 短语该结构意为“…在…中是第几…的…”（从第二开始）。
Russia is __________ country in the world. (large)
Canada is ________________ country in the world. (large)
China is ______________ country in the world. (large)
the largest
the second largest
the third largest
形容词和副词的原级,比较级,最高级的用法
比较级表达最高级
“比较级+than any other+可数名词单数”=“比较级+than the other+可数名词复数”表示“比其他任何…都…”,表示最高级含义,可与表示最高级的句子进行转换。
My father is taller than __________________ in my family.
My father is the tallest one in my family.
My father is taller than __________________ in my family.
any other member
the other members
Part. 04
Practice
4a
Fill in the blanks with the correct forms of the words in the box.
1. The Amazon River is one of the _________ rivers in the world. It’s a little ________ than the Yangtze River.
2. Qomolangma is 8,844.43 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
n. 大海，海洋
Make comparisons according to the table.
the Nile River the Amazon River the Yangtze River the Yellow River
6,671 km 6,480 km 6,300 km 5,464 km
The Nile River is the longest river in the world.
No river in the world is as long as the Nile River.
The Amazon River is one of the longest rivers in the world.
The Amazon River is a little longer than the Yangtze River.
The Nile River is much longer than the Yellow River.
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.
Two cities: ________________ and _______________
________________________________________________
________________________________________________
________________________________________________
Two animals: ________________ and _______________
________________________________________________
________________________________________________
________________________________________________
Singapore
Kuala Lumpur
Kuala Lumpur is as modern as Singapore.
Singapore is bigger than Kuala Lumpur and has a larger population than Kuala Lumper.
Rabbit
Snail
A rabbit is bigger than a snail.
A snail is a lot smaller than a rabbit, and it runs much slower than a rabbit.
4c
Write five questions using comparisons. Then ask your partner your questions.
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
Which place is the best for our school trip
Our school is going on a school trip in the city. Which is the best place to go to Can you give some advice and why Work in groups of 5 and report to the class. Remember to use comparisons.
Example:
We think ______ is the best place for us to go on a school trip. Of all the places, it is the ________. And we can also ______ . So we all think it is a good idea to visit________________.
Part. 05
Summary
Summary
Word and Expression
Grammar
ocean
大数字的表达和读法
billion
million
the Pacific Ocean
thousand
hundred
读的时候通常在hundred后加and，如果百位数为0，则在thousand后加and。
Summary
形容词和副词的比较级
构成
规则变化
不规则变化
加后缀 -er
前面加 more
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
可用于修饰形容词和副词比较级程度的副词（短语）有： much, a little, even, a lot, a bit, far等。
形容词和副词的原级
as+形容词/副词原级+as 表示双方在程度、性质、特征等方面一样。
Summary
形容词和副词的最高级
构成
规则变化
不规则变化
加后缀 -est
前面加 most
用法
(the+)最高级+in/of短语
one of the+最高级+可数名词复+in/of短语
the+序数词+最高级+可数名词单+in/of短语
Which/Who…+最高级, A, B or C
【特别提醒】最高级前有物主代词、名词所有格等修饰时，其前不加the。
当most表示“非常”时，其前不加the。
Part. 06
Language points
tour n. & v. 旅行；旅游
Point
1. Feel free to ask me anything on today’s Great Wall tour. (教材 P50 2d)
tour在此处作可数名词，还可以作动词用。
如：They went on a tour around Europe last year. ( n.)
We toured Italy for our holiday last year. ( v.)
【拓展延伸】
tour (v.) + 后缀 -ist → tourist (n.) 旅行者；观光者
如：The tourists (n.) toured (v.) Hong Kong for holidays. They all enjoyed their tour (n.).
amazing adj. 令人大为惊奇的；令人惊喜（惊叹）的
Point
2. Wow, that’s amazing. (教材 P50 2d)
amazing一般用于修饰事物，amazed（感到惊奇的）常用于修饰人。 be amazed at 意为“对……感到惊讶”。
The amazing magic show made me feel so amazed.
I’m amazed at his rapid progress.
经典例句
【拓展延伸】类似的以 -ing（令人……），-ed（感到……）结尾的形容词：
interesting/interested, surprising/surprised, relaxing/relaxed, moving/moved, tiring/tired, boring/bored, exciting/exited, …
protect v. 保护；防护
Point
3. The main reason was to protect their part of the country.(教材 P50 2d)
protect此处用作及物动词, protect… against/from…“保护……免于……”。protection作不可数名词，意为“保护；防卫”。
如：Are we doing enough to protect the environment
He wears sunglasses to protect his eyes against/from the strong sunlight.
It’s parents’ duty to provide protection for their children.
Part. 07
Exercise
一、单项选择。
1.China has a ______ population than America.
A. more B. much more C. much large D. much larger
2.Xi’an is one of _____ in China.
A. more famous city B. most famous cities
C. the most famous cities D. much more famous city
3.China is the third _____ country in the world.
A. large B. largest C. larger D. as large as
4. Staying with families and friends in our free time is one of _____things.
A. the happiest B. happier C. the happy D. happiest
5.Qomolangma is higher than _____ in the world.
A. the other mountain B. another mountain
C. any other mountain D. any mountains
6.—I don’t think history is more useful than physics.
—I disagree. In my opinion, history is______physics.
A. as useful as B. not so useful as
C. less useful than D. the most useful of
7. The number “23,456”can be read as “ ”.
A. twenty-three thousand, four hundred and fifty-six
B. twenty-three thousand and four hundred fifty-six
C. twenty-three thousand and four five six
D. twenty-three thousand, four five six
二、同义句转换，每空一词。
1. My brother is not as hard-working as me.
My brother is 　less　 hard-working 　than　 me.
2. How many people live in Hefei？
　What’s　 　the　population　 of Hefei？
3. Peter is the tallest in his class.
Peter is taller than 　the　 　other　 students in his class.
4. John is 14 years old. Jack is 14 years old， too.
John is 　as　 　old　 　as　 Jack.
5. If you work harder， you will learn better.
The 　harder　 you work， the 　better　 you will learn.
less
than
What’s
the　 population
the
other
as
old
as
harder
better
三、用括号内所给词的适当形式填空。
This question is quite __________. That one is __________________ than this one. (difficult)
I think table tennis is as _________ as soccer. (excite)
Which of these books would you like ________ (much)
Take exercise one hour a day, and you will become ________than before. (strong)
Uncle Wang doesn’t drive as__________ as Uncle Liu. I think Uncle Liu drives_____________ . (carefully)
difficult
more difficult
exciting
most
stronger
carefully
more carefully
Part. 08
Homework
1.Make comparisons about the places in our city.
2.Do the exercises in students’ book.
3.Preview (Section B 1a-1d).
谢谢
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