(共42张PPT)
Unit 7 What's the highest mountain in the world
Section A 1a-2d
情景导入
Do you know these mountains
黄山
Mount Huang
Mount Tai
泰山
Mount Lu
庐山
单词展示
n.平方；正方形
square
meter(=metre)
n.米；公尺
deep
adj.深的；纵深的
desert
n.沙漠
population
n.人口；人口数量
tourist
n.墙
wall
n.旅行者；观光者
生成新知
Qomolangma
the Caspian Sea
the Sahara
the Nile
Qomolangma
about 9,600,000 square kilometers in size
The Sahara
1,025 meters deep
The Caspian Sea
6,671 kilometers long
The Nile
8,844.43 meters high
1a
Match the facts you know.
Fill in the table.
height
length
depth
area
highest/ tallest
lowest/ shortest
longest
shortest
deepest
shallowest
biggest
smallest
Feature
Most
Least
Mountain
River
Sea/Lake
Desert
1b
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
点击图片，播放视频
Teacher: Yesterday, we learned some important
geographical facts. I hope you all still
remember them. I’m going to test you now
by asking a few questions. First, what’s the
highest mountain in the world
Tapescripts
地理
事实
Boy 1:
“比较级+ than any other +名词+其他” 表示“比其他任何一个……都……”
注意：该结构可与“the+最高级+其他”相互转换。
Teacher: That’s right. And who can tell me what the
Sahara is
Girl 1:
The Sahara is the biggest desert in the world.
Qomolangma! It’s higher than any other
mountain in the world.
Teacher: Very good. And which is the deepest salt
lake in the world
Girl 2:
Teacher:
The Caspian Sea is the deepest of all the salt
lakes.
You’re all so smart! Now, for the last question,
which is the longest river in the world
Boy 2:
“the+序数词+最高级+单数名词+in…”表示“是……中的第几……”
Boy 1:
Teacher:
I know! The Nile is the longest river in the world.
And the Amazon is the second longest river in
the world.
It seems that you know the answers to all my
questions. Good job!
1c
Use the information in 1b to make conversations.
What is the highest mountain in the world
Qomolangma
情景表演
What is the biggest
Desert in the world
The Sahara.
What is the deepest salt lake in the world
The Caspian Sea.
2a
____ 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.
Listen and number the facts [1-4] in the order you hear them.
2
4
6,300 5,000 5,464 300
____ China is over ________ years old. It has a
much longer history than the US. The US is
not even_______ years old.
____ China is almost as big as the US, and it is
the biggest country in Asia.
1
3
6,300 5,000 5,464 300
2b
Listen again and fill in the blanks in 2a with the numbers in the box.
___ 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.
6,300
5,464
6,300 5,000 5,464 300
6,300 5,000 5,464 300
___ China is over ______ years old. It has a much longer history than the US. The US is not even _____ years old.
___ China is almost as big as the US, and it is the biggest country in Asia.
5,000
300
点击图片，播放视频
Tapescripts
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 the
oldest countries in the world It’s over 5,000
years old.
中国是世界上最古老的国家之一
Mike: Yes, I did. It’s much older than my country -
in fact, the United States is one of the youngest
countries in the world. It’s not even 300 years
old.
Boy: And China has the biggest population, too. It’s a
lot bigger than the population of the United
States.
中国人口比美国多很多
Mike: But China is about the same size as the US,
right
Girl: Yes, and it’s the biggest country in Asia.
We also have some famous rivers. The
Yangtze River is the longest river in Asia.
It’s about 6,300 kilometers long.
中国和美国国土面积差不多大
长江是亚洲最长的河流
Mike: Wow! I didn’t know that. I thought the
Yellow River was longer.
Boy: No, the Yellow River is 5,464 kilometers
long. But both rivers are very important
to China.
2c
Make conversations using the information in 2a.
Yes, I did. It’s much older than my country.
Did you know that China is one of the oldest countries in the world
Did you know that
China is the biggest country in Asia
Yes, I did. It’s almost as big as the US.
情景表演
Role-play the conversation.
Guide: Feel free to ask me anything on today’s
Great Wall tour.
2d
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.
feel free to do sth.随便做某事
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.
令人惊喜（或惊叹）的
古代的；古老的
据我所知
1. How long is the Great Wall
If we’re only talking about the parts from the Ming Dynasty, it’s about 8,850 kilometers long.
Task 1
2. Why did the ancient emperors build the wall
The Badaling part.
The main reason was to protect their part of the country.
3. Which part is the most famous part of the Ming Great Wall
问题探究
1．It's a lot bigger than the population of the US.
(中国的)人口数量比美国多得多。
a lot 意为“很；非常”，在句中用来修饰形容词的比较级
bigger，表示“……得多”。在比较级结构中，为了强调形容词或副词的程度，可在其前用a lot，a little，a bit，much，even，any，still等副词(短语)修饰。
例句：Please speak a little/a bit louder.请稍微大点声说话。
【拓展】
(1)a lot 作副词短语意为“非常”时，可用来修饰动词。
(2)a lot of＝lots of 意为“许多；大量”，既可修饰可数名词，相当于many，也可修饰不可数名词，相当于much。
例句：She has spent a lot on clothes.她在买衣服上花费很多。
例句：There were a lot of/lots of people in the cinema.电影院里有很多人。
2．the population of
the population of… 意为“……的人口数量”，可位于句首作主语，用来表示某地的人口数量，其同义短语为：…has a population of。the population of… 作主语表示人口“多”，要用large或great 来修饰；表示人口“少”时要用small来修饰。
例句：The population of India is about 1.3 billion.＝India has a population of about 1.3 billion.印度大约有十三亿人口。
【拓展】
询问某地有多少人时，要用句型“What's the population of…？”“How large is the population of…？”不用能how many，how much提问。
例句：What's the population of your hometown？＝How large is the population of your hometown？你家乡的人口是多少？
3．as far as I know
as far as I know 是一个固定的表达方式，还可以说成so far as I know，意为“据我所知”。其中as far as 作从属连词，意为“就……而言”，引导状语从句，强调程度或范围。
例句：As far as I know，that is highly unlikely.据我所知，那很不可能。
【拓展】
as far as/so far as 意为“与……的距离相等，直到……为止；就……而言”。其后可接地点名词，也可引导状语从句；否定句中多用so far as。as far as常与be concerned 连用，意思是“就……而言”。
例句：Alan will go with you as far as London.艾伦将与你同行到伦敦。
As far as the weather is concerned，I do not think it matters.至于天气，我认为无关紧要。
随堂练习
Ⅰ.根据句意及首字母提示完成句子。
1．The Sahara is about 9，600，000 s ________ kilometers in size.
2．It's about 2，000 m________ from my home to my school.
3．The lake is d________．You mustn't swim alone in it.
4．Li Shizhen was a famous doctor in a________ China.
5．It's our duty to p________ the wild animals around us.
quare
eters
eep
ncient
rotect
Ⅱ.根据汉语意思完成句子。
1.据我所知，世界上没有墙和长城一样长。
_____ _____ _____ I know, no other walls are
_____ _____ _____ the Great Wall.
2.中国人口非常多。
China’s __________ _____ ______.
As far as
population is large
as long as
