资源简介

(共36张PPT)
P76-79
Unit 5
Amazing nature
Developing ideas
通过本课时的学习，学生能够：
1. 描述自然奇观的基本信息，理解自然奇观面临的问题，
造成的原因以及人类应采取的保护措施；
2. 思考人类活动对自然环境的影响，树立保护环境的意识。
3. 关注本课核心词汇和短语，以及形容词、副词
的比较级和最高级的运用
Learning objectives
Look and match
1.Match the words with the pictures of the natural wonders.
river
lake
rainforest
sea
What problems may the natural wonders face
Problem
Cause (原因)
Solution (解决办法)
Why do these problems happen
How can people deal with (处理) them
Group work
river
lake
rainforest
sea
Rivers may have pollution.
This happens because of waste from factories (工厂).
People can treat waste properly (正确处理垃圾) to solve the problem.
Look and answer
Look at the title and answer the questions.
1. What is the meaning of the title
2. Why are the natural wonders crying aloud for help
Because they are facing problems and need help.
Some amazing natural places are in danger and need our help.
[ la d] adv. 出声地，大声地
Natural wonders crying aloud for help
The Dead Sea could die!
I’m not a sea but a lake. And I’m not dead. In fact, I’ve got many plants and animals. I’m saltier than any sea, so people can lie on my surface. Rivers flow into me. But now people take too much water from them. My water level is going down. I am becoming smaller year by year. Take less water, or I’ll dry up within the next 100 years. Then I really will be dead!
Rainforest - forest ≠ rain
I’m the rainforest of Madagascar. As my name suggests, I make rain for my plants and animals, such as monkeys, snakes and many kinds of flowers. For 80% of them, I’m their only home in the world. However, people are cutting down my trees for wood and to make space for farming. Please stop it. I’m disappearing.
If Frozen turns into Waterworld ...
I’m a glacier at the Glacier National Park in America. It’s a land full of ice and snow. Do you want to explore the white world in the film Frozen Then my home is the best choice. Two hundred years ago, there were about 150 glaciers. But now, there are around 25. Please stop climate change. I’m turning into Waterworld.
Read the passage and find out who is speaking in the passage
The Dead Sea
The rainforest of Madagascar
The glacier at the Glacier National Park in America
[m d ɡ sk ] 马达加斯加
['ɡl s ] n.冰川 [ n n l] adj. 国家的
The Dead Sea
The rainforest of Madagascar
The glacier at the Glacier National Park in America
[m d ɡ sk ] 马达加斯加
['ɡl s ] n.冰川 [ n n l] adj. 国家的
Compare the pictures and what can you know
Look and answer
Look and think
Let’s learn more about them!
Read and fill
Read the passage and fill in the blanks.
My water level is 1_______________. I am becoming 2__________ year by year.
There is not enough water to flow into me, because now people 3______ too much water from rivers.
Problem
Cause
Solution
4________________.
The Dead Sea
going down
smaller
take
Take less water
Read and fill
1. Which of the following statements about the Dead Sea is TRUE
A. It is a sea with a lot of salt.
B. People can swim easily in the Dead Sea.
C. Its water level is rising.
D. It may dry up in 100 years if people don’t take less water.
Read and fill
Read the passage and fill in the blanks.
I’m the rainforest of Madagascar. I’m 5_______________.
People are 6_______
_________ my trees for wood and to make space for farming.
Problem
Cause
Solution
7______________________.
The rainforest of Madagascar
disappearing
cutting
down
Stop cutting down trees
[ d s p ] v. 消失，不见
Read and fill
What does the subtitle “Rainforest - forest ≠ rain” mean
A. The rainforest doesn’t need rain at all.
B. The rainforest plays a role (发挥作用) in making rain.
C. There is no rain in the rainforest.
D. The rain in the rainforest is different from that in other places.
Read and fill
Read the passage and fill in the blanks.
I’m a glacier at the Glacier National Park in America. Two hundred years ago, there were about 8______ glaciers. But now, there are around 9______.
I’m disappearing because of 10______________.
Problem
Cause
Solution
Stop climate change.
The glacier at the Glacier National Park
150
25
climate change
[ ɡl s ] n. 冰川
[ n n l] adj. 国家的，全国性的
Read and fill
3. What will happen if climate change is not stopped for the glaciers in the Glacier
National Park in America
A. The number of glaciers will increase (增加) slowly.
B. The glaciers will turn into a beautiful water world with more fish.
C. The glaciers will melt and disappear one day.
D. The temperature around the glaciers will become lower.
Read and complete
Complete the table with the words and expressions from the passage.
lake
rainforest
ice and snow
to make
take
Two hundred
[ s lt ] adj. 咸的，含盐的
Think and answer
What problem do the different natural wonders share
The different natural wonders are facing environmental problems, and they will disappear if people don’t protect them.
Read and answer
Answer the questions.
1 Are the natural wonders really crying aloud
2 What feeling does this way of writing give you
It makes me feel as if the natural wonders are talking to me. I feel sad for them and want to help them.
No, they aren’t. The passage uses personification to show the serious situation.
Think and share
1. What is the world like in Frozen and Waterworld Why does the writer mention the two films
2. Why is it important to stop these natural wonders from disappearing
In Frozen, the world is cold and full of ice and snow. In Waterworld, the world is covered in water, with no land. The writer mentions the two films to show the serious problem of climate change.
It’s important because natural wonders are beautiful. They give us hope and seeing them makes us happy. Also, they are home to many plants and animals. The life cannot live without lakes, rainforests and glaciers.
Think and answer
What can people do to protect the environment
Reduce tree cutting.
Save water.
Don’t throw rubbish casually.
...
借助外研U学，熟练、流利地朗读课文至少一遍，关注语音语调以及情感变化；
2. 借助书P78表格，口头描述三个自然奇观存在的问题，引起的原因和解决方法。
Homework
Review and fill
The Dead Sea
What is it like
What problem does it face
What should people do
Rivers flow into it. But now people 5_____________________ from them. It’s water level is going down. It’ll 6___________.
It’s not a 1______but a 2______.
It has got many 3________________.
It is 4________ than any sea.
Please 7________________.
sea
lake
plants and animals
saltier
take too much water
dry up
take less water
Review and fill
The rainforest of Madagascar
What is it like
What problem does it face
What should people do
It is 10_____________ because people are 11_____________ its trees.
It makes rains for 8______________
___________. For 9_______ of them, it is their only home in the world.
Please stop 12__________________.
plants and
animals
80%
disappearing
cutting down
cutting down trees
Review and fill
The Glacier National Park
What is it like
What problem does it face
What should people do
The glaciers there become 15______ . Two hundred years ago, there were about 150 glaciers. But now, there are around 25.
It’s a land full of 13_____________. You can 14_________ the white world in the film Frozen there.
Please stop 16_________________.
ice and snow
explore
fewer
climate change
Read and find
Read the passage and find out the useful expressions.
What is it like
I’m not a sea but a lake.
I’m the ... of ...
I’m a ... at/in the...
I’ve got many plants and animals.
It’s a land full of...
...
Read and find
Read the passage and find out the useful expressions.
My water level is going down.
I’m becoming ...
I’m disappearing.
... years ago, there were ... But now, there are ...
I’m turning into ...
...
What problem does it face
Read and find
Read the passage and find out the useful expressions.
Take less water.
Please stop cutting down trees.
Please stop climate change.
...
What should people do
Writing task
The school newspaper is calling for articles, and here’s the notice.
Call for Articles
Topic:
Write a short paragraph about another natural wonder crying for help.
Your paragraph should:
Introduce the characteristics and importance of the natural wonder;
Introduce the problems that it faces;
Give your advice on what people should do.
Look and match
Match the natural wonders with the pictures.
the Amazon River
the South Pole
the North Pole
Victoria Falls
the Great Barrier Reef
1
2
3
5
4
Think and choose
Think of some natural wonders with problems. Choose one to write about. You can consider the following:
1
2
3
5
4
the North Pole
the Amazon River
the South Pole
Victoria Falls
the Great Barrier Reef
I want to choose...
Think and complete
Think and complete the boxes. Then share your answers.
What is it like
What problem(s) does it face
What should people do
What is the reason(s)
Let’s share
Share your paragraph with the class.
Let’s share
Share your paragraph with the class.
Example
I, the Amazon River, am in trouble. I am a big river, full of life. In fact, I’m one of the largest rivers in the world. I run through the Amazon Rainforest. I give water to it. But now, I am facing problems like pollution and climate change. I’m getting dirtier and the amazing life around me is dying out. It will change the balance in nature and harm all the life, including you, humans. Hear my cries, and help me now! You should stop throwing rubbish in the water and help take care of the forest.
Which natural wonder do you choose
What is it like
What problem(s) does it face
What should people do
Think and write
Write the short paragraph in the first person. Use the boxes to help you.
______________________________________________________________________________________________________________________________________________________________________________________________________________________________
Summary
03
02
01
What is it like
What problem(s) does it face
What should people do
How to write a paragraph about a natural wonder with problems
My water level is going down.
I’m becoming ...
I’m disappearing.
Take less water.
Please stop cutting down trees.
Please stop climate change.
I’m the ... of ...
I’m a ... at/in the...
I’ve got many plants and animals.
Homework
1. Polish your writing.
2. Search online for information about natural wonders around the world. Get ready for making posters about a natural wonder in next class.
Bye-bye!

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