人教高中英语必修3 Unit4 Astronomy: the science of the stars Reading （共21张PPT）
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| 名称 | 人教高中英语必修3 Unit4 Astronomy: the science of the stars Reading （共21张PPT） |  | |
| 格式 | zip | ||
| 文件大小 | 2.7MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 人教版（新课程标准） | ||
| 科目 | 英语 | ||
| 更新时间 | 2020-03-08 17:09:52 | ||
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(共21张PPT)
Unit 4
Pan’gu separates the sky from the earth
Nuwa makes human beings
Do you think the fairy(童话) stories are true?
Pangu separated Nvwa created
the sky humans
How Life Began on the Earth
Fast reading
Listen to the tape and match the main idea for each paragraph.
Main idea of each paragraph
The importance of water for life
The development of plants and animals on the earth
The formation of the earth
A widely accepted theory about the formation of the universe
e. The arrival of humans and their impact on the earth
Para1:
Para 2:
Para 3:
Para 4:
Para 5:
Careful reading
Task 1：Read para 1 and answer the following questions.
1.According to a widely accepted theory, how the universe began?
2.After the “Big Bang” what began to form?
The universe began with a “Big Bang”.
After that, atoms began to form and combine to create stars and other bodies.
Task 2：Read para 2 and fill in the blanks.
For several billion years after the _________,the earth was still just ______________.Between __ and_________ years ago when the dust settled into_____________. It exploded loudly with ____and____. They produced some gases, which were to make the earth’s __________ . As the earth cooled down, _______ began appear on its surface.
Big Bang
a cloud of dust
4.5
3.8billion
a solid globe
fire
rock
atmosphere
Water
Task 3：Read para 3 and answer the question.
Why did scientist believe water is fundamental to the development of life?
Because water allowed the earth to dissolve harmful gases and acids into the oceans and seas. This produced a chain reaction, which made it possible for life to develop.
Put the order of development of life into a time line.
Insects and amphibians appeared.
The earth became a solid ball.
Reptiles appeared.
The earth was a cloud of dust.
Shellfish and other fish appeared
Dinosaurs appeared.
Small plants grew on the water.
Plants began to grow on dry land.
Water appeared on the earth.
Mammals (including humans )appeared.
D
B
I
G
E
H
A
C
F
J
Big Bang
A solid ball
The earth
Summary
How the earth developed through history?
A cloud of dust
water
Small plants on the water
Shellfish and fish
Plants on dry land
Insects and amphibians
Reptiles
Dinosaurs
Mammals
Apes developed into humans.
Read the last paragraph again, answer the following question
After the human beings appeared, what did they do to the earth?
.
putting carbon dioxide into the atmosphere
the earth may become too hot
What problems are humans causing?
How to protect the earth and make it a better place to live on?
We have only one earth!
We should take care of the earth!
What should we do to save the earth?
* Protect our homeland/protect the wild animals
* We can plant trees and take good care of them.
* We can reduce waste and reuse things. We can recycle paper, bottles, and plastic.
* Passed the Laws to stop pollution.
……
Please try your best to retell the passage and finish the exercise on page27.
Unit 4
Pan’gu separates the sky from the earth
Nuwa makes human beings
Do you think the fairy(童话) stories are true?
Pangu separated Nvwa created
the sky humans
How Life Began on the Earth
Fast reading
Listen to the tape and match the main idea for each paragraph.
Main idea of each paragraph
The importance of water for life
The development of plants and animals on the earth
The formation of the earth
A widely accepted theory about the formation of the universe
e. The arrival of humans and their impact on the earth
Para1:
Para 2:
Para 3:
Para 4:
Para 5:
Careful reading
Task 1：Read para 1 and answer the following questions.
1.According to a widely accepted theory, how the universe began?
2.After the “Big Bang” what began to form?
The universe began with a “Big Bang”.
After that, atoms began to form and combine to create stars and other bodies.
Task 2：Read para 2 and fill in the blanks.
For several billion years after the _________,the earth was still just ______________.Between __ and_________ years ago when the dust settled into_____________. It exploded loudly with ____and____. They produced some gases, which were to make the earth’s __________ . As the earth cooled down, _______ began appear on its surface.
Big Bang
a cloud of dust
4.5
3.8billion
a solid globe
fire
rock
atmosphere
Water
Task 3：Read para 3 and answer the question.
Why did scientist believe water is fundamental to the development of life?
Because water allowed the earth to dissolve harmful gases and acids into the oceans and seas. This produced a chain reaction, which made it possible for life to develop.
Put the order of development of life into a time line.
Insects and amphibians appeared.
The earth became a solid ball.
Reptiles appeared.
The earth was a cloud of dust.
Shellfish and other fish appeared
Dinosaurs appeared.
Small plants grew on the water.
Plants began to grow on dry land.
Water appeared on the earth.
Mammals (including humans )appeared.
D
B
I
G
E
H
A
C
F
J
Big Bang
A solid ball
The earth
Summary
How the earth developed through history?
A cloud of dust
water
Small plants on the water
Shellfish and fish
Plants on dry land
Insects and amphibians
Reptiles
Dinosaurs
Mammals
Apes developed into humans.
Read the last paragraph again, answer the following question
After the human beings appeared, what did they do to the earth?
.
putting carbon dioxide into the atmosphere
the earth may become too hot
What problems are humans causing?
How to protect the earth and make it a better place to live on?
We have only one earth!
We should take care of the earth!
What should we do to save the earth?
* Protect our homeland/protect the wild animals
* We can plant trees and take good care of them.
* We can reduce waste and reuse things. We can recycle paper, bottles, and plastic.
* Passed the Laws to stop pollution.
……
Please try your best to retell the passage and finish the exercise on page27.
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