Unit 7 What's the highest mountain in the world?Section A (1a-2d)课件(共41张PPT，含内嵌音频) 人教版八年级下册

(共41张PPT)
Unit 7
Unit 7
What’s the highest mountain
in the world
1. To be able to catch numbers in listening;
2. To learn to compare facts by giving numbers;
3. To learn to talk about geography and nature.
square
meter
deep
desert
population
Asia
feel free
adj. 平方；正方形的
n. 正方形；广场
n. (=metre)米；公尺
adj. 深的；纵深的
n. 沙漠
n. 人口；人口数量
n. 亚洲
(可以)随便(做某事)
tour
tourist
wall
amazing
ancient
protect
wide
as far as I know
man-made
n. & v. 旅行；旅游
n. 旅行者；观光者
n. 墙
adj. 令人大为惊奇的；令人惊喜(或惊叹)的
adj. 古代的；古老的
v. 保护；防护
adj. 宽的；宽阔的
就我所知
adj. 人造的
What do you know about these numbers
6,671
9,000,000
8,848.86
six thousand, six hundred and seventy-one
eight thousand, eight hundred and forty-eight point eight six
nine million
1,025
one thousand and twenty-five
Qomolangma is 8,848.86 meters high.
The Nile is 6,671 kilometers long.
The Caspian Sea is 1,025 meters deep.
The Sahara is about 9,000,000 square kilometers in size.
1—12: (记住每个单词)
13—19: -teen (thir-, four-, fif-, six-, seven-, eigh-, nine-)
20—90: -ty (twen-, thir-, for-, fif-, six-, seven-, eigh-，nine-)
21—99:
十位
_
个位
100, 200, ... 900:
one, two, … hundred
101—999:
one, two, … hundred and
__
个位
十位
__
_
个位
【小结】
多位数:
______ billion (十亿), ______ million (百万), _____ thousand, ______ hundred and
个位
十位
__
_
个位
__
What’s the highest mountain in the world
Which is the deepest salt lake in the world
Which is the longest river in the world
What’s the largest/ biggest hot desert in the world
Which is the second longest river in the world
Geographical Facts
Match the facts you know.
Qomolangma about 9,000,000 square kilometers in size
The Sahara 1,025 meters deep
The Caspian Sea 6,671 kilometers long
The Nile 8,848.86 meters high
…8,848.86 meters high … 8,848.86米高
… meters high (long, wide…) ……米高（长，宽……)
e.g. The wall is 1.7 meters wide.
【注解】
Mountain River Sea/ Lake Desert
Feature
Most
Least
How to use adjectives to describe natural features
height
highest/ tallest
lowest/ shortest
length
longest
shortest
depth
deepest
shallowest
area
biggest
smallest
Listen and complete the sentences.
1. Qomolangma is _______ than any other mountain in the world.
2. The Sahara is ____________ desert in the world.
3. The Caspian Sea is ____________ of all the salt lakes.
4. The Nile is ___________ river in the world.
higher
the biggest
the deepest
the longest
“the+序数词+最高级+单数名词” “第几……最……的……”
“比较级+ than any other +单数名词”
“比其他任何一个……都……”
意义相当于最高级
形容词最高级结构: the +最高级
A: What is the highest mountain in the world
B: Qomolangma.
A: How high is it
B: It’s 8,848.86 meters high.
Use the information in 1b to make conversations.
For example:
Qomolangma is higher than any other mountain in the world. It’s 8848.86 meters high.
Qomolangma
What do you know about these places
The Sahara is the biggest desert in the world.
It is about 9,000,000 square kilometers in size.
the Sahara
The Caspian Sea is the deepest lake in the world.
It is 1,025 meters deep.
The Nile is the longest river in the world. It is 6,671 kilometers long.
Read the numbers and make sentences.
9,000,000
1,000
30,000
1,025
one thousand
thirty thousand
nine million
one thousand and twenty-five
6,671
Six thousand, six hundred and seventy-one
I think our school has more than 1,000 students.
Maybe he will spend 1,000 yuan for his holiday.
Which is the largest number in the game
1,000 30,000 9,000,000 1,025 6,671
9,000,000 is the largest number of all. It’s larger than any other number.
Which is the smallest number in the game
The smallest number is 1,025./ 1,025 is the smallest number of all. It’s smaller than any other number.
Read the numbers.
6,300 5,000 5,464 300
Six thousand and three hundred
five thousand
five thousand four hundred and sixty-four
three hundred
6,300 5,000 5,464 300
6,300 is the biggest/ largest number.
300 is the smallest number.
6,300 is a lot bigger than 300.
5,000 is almost as big as 5,464.
Use the four numbers to make sentences.
Listen and number the facts [1-4] in the order you hear them.
6,300 5,000 5,464 300
___ The Yangtze River is about _______ kilometers long and the Yellow River is _______ kilometers long.
___ China has the biggest population in the world. It’s a lot bigger than the population of the US.
___ China is over _______ years old. It has a much longer history than the US. The US is not even _______ years old.
___ China is about the same size as the US, and it is the biggest country in Asia.
4
2
1
3
Listen again and fill in the blanks in 2a with the numbers in the box.
6,300 5,000 5,464 300
___ The Yangtze River is about ____ kilometers long and the Yellow River is _____ kilometers long.
___ China has the biggest population in the world. It’s a lot bigger than the population of the US.
___ China is over _____ years old. It has a much longer history than the US. The US is not even _____ years old.
___ China is about the same size as the US, and it is the biggest country in Asia.
4
2
1
3
300
6,300
5,464
5,000
Mike: Hi, I’m Mike. I’m from the United States.
Boy: Welcome to our class, Mike. We’re happy to meet you.
Mike: Can you tell me a bit more about China
Girl: Sure! Did you know that China is one of ____________ countries in the world It’s over 5,000 years old.
Mike: Yes, I did. It’s much ____________ than my country—in fact, the United States is one of the ____________ countries in the world, It’s not even 300 years old.
Boy: And China has the ____________ population, too. It’s a lot ____________ than the population of the United State.
Listen again and fill in the blanks.
the oldest
older
youngest
biggest
bigger
Mike: But China is about the same size as the US, right
Girl: Yes, and it’s the ____________ country in Asia. We also have some famous rivers. The Yangtze River is ____________ river in Asia. It’s about 6,300 kilometers long.
Mike: Wow! I didn’t know that. I thought the Yellow River was ____________.
Boy: No, the Yellow River is 5,464 kilometers long. But both rivers are very important to China.
the biggest
the longest
longer
“Did you know” is more polite than “Do you know” here.
This sentence means:
It’s OK if you didn’t know, because I can share the information with you.
(Then the person who is asked the question will not feel uncomfortable if he / she did not know. )
2. You might know, but it doesn’t matter because I can still share the information with you and we can talk about it more.
Did you know that China is one of the oldest countries in the world
Make conversations using the information in 2a.
A: Did you know that China is one of the oldest countries in the world
B: Yes, I did. It’s much older than my country.
A: Did you know that Yangtze River is the longest river in China
B: Yes, I did. It’s 6,300 meters long.
A: Wow! That’s so long!
…
The Great Wall
He who doesn’t reach the Great Wall is not a true man.
不到长城非好汉。
Role-play the conversation.
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.
Watch the flash and practice the dialogue with your partner. Then perform it in the class.
1. What’s the conversation about
2. How long is the Ming Great Wall
3. Why did the ancient emperors build the wall
4. Is Badaling part of the Ming Great Wall
Read the conversation and answer the questions.
It’s about 8,850 kilometers long.
Yes, it’s the most famous part.
The main reason was to protect their part of the country.
It’s about a tour to the Ming Great Wall.
5. What does the guide say about the wall
It’s quite tall and wide./ It’s the longest wall in the world./ The ancient emperors built it to protect their part of the country./ There are no man-made objects as big as this./ Badaling is the most famous part of the Ming Great Wall.
Now let’s talk about the Great Wall. The parts from the Ming Dynasty is about 8,850 kilometers long. This makes it ______________ in the world. The ancient emperors built it to ______________ their part of the country. It is quite ______________ and there are no other ______________ objects ______________ this. Badaling is the most famous part of the Ming Great Wall.
the longest wall
protect
tall and wide
man-made
as big as
Fill in the blanks according to the conversation.
_____________________ (可以)随便(做某事)
_____________________ 就我所知
_____________________ 平方米
_____________________ 咸水湖
_____________________ 最多的人口
feel free (to do sth.)
as far as I know
square meters
salt lakes
the biggest population
Ⅰ. 根据语境，从方框中选择恰当的单词填空，注意形式变化。
tour, meter, ancient, wide, protect
1. Eric’s room is very big. It’s 200 square _______ in area.
2. Many _______ would like to visit the Great Wall when they travel to Beijing.
3. There will be a show of _______ Chinese paintings in the museum next week.
meters
tourists
ancient
4. I’m excited to see the great changes in my hometown — the roads are _______ and the buildings are taller.
5. You need warm clothes to _______ yourself against the cold.
tour, meter, ancient, wide, protect
wider
protect
Ⅱ. 根据语境及所给汉语提示，写出所缺内容，每空一词。
1. If you need anything else, please _______ _______ _______ _______ _______(随时告诉我).
2. _______ _______ _______ _______ _______(据我所知), Maggie is used to writing with her left hand.
3. China has _______ ______________ __________(最多的人口) in the world.
4.那条河至少有三米深。
That river is at least _______ _______ _______.
feel free to
tell me
As far as I know
the biggest / largest population
three meters deep
1. 发挥想象，连词成文(50-100词)。
2. Preview Section A (3a – 3c).
square, meter, population, Asia, tour, tourist, wall, ancient, protect, wide, as far as I know