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(共22张PPT)
Unit Four
The Wonders of Nature
Sec A 3a-3d
What’s the highest mountain in the world
It’s the Mount Qomolangma .
What’s the biggest desert in the world
It’s the Sahara Desert .
What’s the lowest place on earth
It’s the Dead Sea.
What’s the longest river in the world
It’s the Nile.
What’s the deepest point in the ocean
It’s the Mariana Trench.
Let’s continue to travel and explore
the amazing nature!
Could you tell me more about the rivers
Both of them play an important role in Chinese history, culture, transportation(交通) and agriculture(农业).They are symbols of ancient Chinese civilization. And they’re still very important today.
What is the longest river in Asia
What is the second longest river in China
Nile River is the longest river in the world. It is about 6,650 kilometers long and runs through 11 countries in northeastern
Africa, like Egypt and Sudan. For thousands of years, it has given people water and good soil for farming, so it is very important for life in this area.
1.Where did Ella go on her trip
2.How was Ella’s trip
3.How many rivers are mentioned in the conversation
5,464
China
Egypt
6,671
civilizations
River Name Key Facts / Importance
The Yellow River It’s ___________ long and is the ___________ longest in China;
It’s yellow because it carries ______________________;
It’s known as China’s “________ river”.
The Yangtze River The ______ river in China - about ________ long;
It travels the _______.
The Nile The longest river _____________;
It’s important in _________ history;
It helped develop___________________ like the yellow river.
5,464 km
second
brown and yellow earth
mother
longest
in the world
Egypt’s
ancient civilizations
6,300 km
farthest
1. 流经的距离最远
2. 第二长
3. 顺便说一下
4. 了解/学习……
5. ……和……都
6. 古代文明
7. 发展（with the development of/developed/developing )
8. 保护
9. 不惜一切代价（means）
Can you find the expressions in the conversation
by all means
Yaming: Welcome back, Ella! How was your trip
Ella: It was great! We saw the Hukou Waterfall on the Yellow River. Is that the
longest river in China
Yaming: No, the Yangtze River is the longest river in China. It travels the farthest
and is about 6,300 kilometres long. The Yellow River is 5,464 kilometres long and
is the second longest. By the way, do you know why it's called the Yellow River
Ella: Because it's yellow
Yaming: Right. Some parts of the river carry brown and yellow earth.
Ella: That's interesting! I like learning about rivers. My favourite is the Nile. Did you
know it's the longest river in the world
Yaming: Yes, it's 6,671 kilometres long. It's very important in Egypt's history.
Ella: That's right. Both the Nile and the Yellow River helped ancient civilizations to develop. And they're still very important today.
Yaming: Yes. In China, we even call the Yellow River our "mother river"!
Ella: We should protect them at all costs.
3d
Imagine that you are Yaming or Ella. Continue the conversation with a partner about other geographical features in China.
Ella: Could you tell me more about China, Yaming
Yaming: Sure! What would you like to know
Ella: What’s the biggest desert in China
Yaming: It’s the Taklimakan Desert(塔克拉玛干沙漠).
Ella: Do you know ...
Could you tell me more about China, Yaming
Sure! What would you like to know
What’s the biggest desert in China
What’s the lowest place on earth
What’s the highest mountain in the world
What’s the deepest point in the ocean
It’s the Taklimakan Desert/the Dead Sea/
the Mount Qomolangma/the Mariana Trench
Do you know how big the Taklimakan Desert is
How low is the Dead Sea
How high is Mount Qomolangma
How deep is the Mariana Trench
It’s about 337,600 square kilometers in size.
The Dead Sea is about 416 meters below sea level.
Mount Qomolangma is 8,848.86 meters high.
The Mariana Trench is about 11,000 meters deep/in depth.
Why should we protect the rivers at all costs
=by all means
Because the Yellow River is our “mother river”, it’s important for civilization and people’s daily life.
But now, rivers are so dirty. Due to pollution, the living conditions of fish are bad. They risk dying and cannot survive, and their death tells us we need to protect our environment.
stop pouring waste into rivers
reduce chemical use
plant trees along river banks
Connect us well with the nature!
carry　civilization　at all costs　part of　far
1.Tim chose the ____________ seat from the door.
2.To have a comfortable living environment， we should protect the earth ________________.
3.Last week， we studied different _____________ in history class.
4.You have to ____________ a phone so that we can call you at any time.
5.You can spend ________ the day doing exercise and playing sport.
farthest
at all costs
civilizations
carry
part of
用方框中所给词语的适当形式填空
Let’s practice
1. The main purpose of his holiday to Greece was to go ________ (dive).
2. Our school library is the ________ (large) one in the district, with a lot of different kinds of books.
3. The ________(deep) of the swimming pool is two metres, so you need to be careful.
4. The Dead Sea is the ________ (low) place on earth.
5. The national park covers an area of 500 ________ (square) kilometers.
6. Mount Qomolangma is still growing _______ (tall).
7. Many deep-sea animals are __________ (color) and strange.
diving
用单词的适当形式填空。
largest
depth
colorful
lowest
square
taller
Let’s practice

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