人教高中英语必修3 Unit 4 Astronomy: the science of the stars reading课件（共26张PPT）
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| 名称 | 人教高中英语必修3 Unit 4 Astronomy: the science of the stars reading课件（共26张PPT） |  | |
| 格式 | zip | ||
| 文件大小 | 1.6MB | ||
| 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 | 2020-03-13 17:30:20 | ||
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(共26张PPT)
人教版英语必修3
Unit 4
Reading
HOW LIFE BEGAN ON THE EARTH
“Astronomy” is a scientific study about stars and plants.
2. when we talk about astronomy,
everyone is curious about our solar system: How did our solar system
come into existence?
Step 1 warming up:
In our solar system eight planets
circle around the sun.
our solar system:
水星
金星
火星
木星
土星
天王星
海王星
Scientists now think Pluto is
too small to be called a planet.
Step 2 detailed reading:
1. Besides our solar system,everybody has these puzzles:
1.How did the earth come into being?
2.
Step 3：Read para2 and answer the questions:
(1) After the Big Bang, what was the earth like?
(2) What happened next?
(3) What did the water vapour and gases
form?
(4) What appeared as the earth cooled down?
How did the earth come into being?
Big Bang
How did the earth come into being?
A solid globe
a cloud of dust
exploded with fire and rock
produce water vapour and gases---atmosphere
step 4： Why is water so important for the beginning of life?
Because water allowed the earth to dissolve harmful gases into oceans and seas and this produced a chain reaction , which made it possible for life to develop
water.mp3
So we should try our best to protect water ! but ……
保护水资源.mp4.qsv
What is the development of life on the earth?
step5： According to para4 to answer the question:
plants ---------animals
small plants appears in water
Shellfish and all sorts of fish
The development of life:
Stage 1
green plants began to grow on land
insects appeared
amphibians on land and in the water
Stage 2
forests
reptiles
dinosaurs
Stage 3
mammals on land
Stage 4
Stage 5
small clever animals
1. Insects and amphibians appeared.
3. The earth became a solid ball.
5. Reptiles appeared.
7. The earth was a cloud of dust
9. Shellfish and other fish appeared.
11. Clever animals with hands and feet appeared
2. Dinosaurs appeared.
4.Small plants grew on the water.
6. Plants began to grow on dry land.
8. Water appeared on the earth
10. The universe began with a “Big Bang”.
12. Mammals appeared.
8
3
10
9
11
5
1
7
4
12
6
2
Step6：put the order of development of life into a time line?
Para. 1 The formation (形成) of the
earth.
Para. 2 The importance of water for
life.
Para. 3 A widely accepted theory
about the formation of the
universe.
Para. 4 The arrival of humans and
their effect on the earth.
Para. 5 The development of life on the earth.
match the main idea with each paragraph
To deal with Detail Comprehensive questions(细节理解题), we can do as follows:
*读题---确定题目关键词和选项关键词（key words ）；
*定位---回归原文，确定出处；
*比对---逐一比对选项和关键词出处，结合排除法确定答案。
1.Who are the small clever animals with hands and feet?
2. Are they taking care of the earth well? Why?
Earth Song 地球之歌完整版.qsv
Step7：
Free talk
what things should we do for the earth?
plant trees
recycle rubbish
save water
save electricity
A reporter is interviewing some students about protecting the earth!
Bad phenomena---good methods
summary
The earth is our home and we have the duty to take care of it for ourselves and for our later generations, so it is quite important for us to save energy and to protect our environment.
As a student, there are a lot of methods we can do to save energy at home or at school. Firstly, we can plant as many trees as possible to clean the air. Secondly,we should turn off the light ,water as well as other equipment after using them. What's more, it is suggested to recycle the waste water ,paper and rubbish so that we are able to make full use of resources and try our best to protect the environment.
Above all, everyone can make a great contribution to our environment and make our earth more beautiful.
Group____ is the No. 1!!!
Congratulations!!!
Listen to a song
经典老歌《明天会更好》 英文版 _标清.flv
Tomorrow will be better !
人教版英语必修3
Unit 4
Reading
HOW LIFE BEGAN ON THE EARTH
“Astronomy” is a scientific study about stars and plants.
2. when we talk about astronomy,
everyone is curious about our solar system: How did our solar system
come into existence?
Step 1 warming up:
In our solar system eight planets
circle around the sun.
our solar system:
水星
金星
火星
木星
土星
天王星
海王星
Scientists now think Pluto is
too small to be called a planet.
Step 2 detailed reading:
1. Besides our solar system,everybody has these puzzles:
1.How did the earth come into being?
2.
Step 3：Read para2 and answer the questions:
(1) After the Big Bang, what was the earth like?
(2) What happened next?
(3) What did the water vapour and gases
form?
(4) What appeared as the earth cooled down?
How did the earth come into being?
Big Bang
How did the earth come into being?
A solid globe
a cloud of dust
exploded with fire and rock
produce water vapour and gases---atmosphere
step 4： Why is water so important for the beginning of life?
Because water allowed the earth to dissolve harmful gases into oceans and seas and this produced a chain reaction , which made it possible for life to develop
water.mp3
So we should try our best to protect water ! but ……
保护水资源.mp4.qsv
What is the development of life on the earth?
step5： According to para4 to answer the question:
plants ---------animals
small plants appears in water
Shellfish and all sorts of fish
The development of life:
Stage 1
green plants began to grow on land
insects appeared
amphibians on land and in the water
Stage 2
forests
reptiles
dinosaurs
Stage 3
mammals on land
Stage 4
Stage 5
small clever animals
1. Insects and amphibians appeared.
3. The earth became a solid ball.
5. Reptiles appeared.
7. The earth was a cloud of dust
9. Shellfish and other fish appeared.
11. Clever animals with hands and feet appeared
2. Dinosaurs appeared.
4.Small plants grew on the water.
6. Plants began to grow on dry land.
8. Water appeared on the earth
10. The universe began with a “Big Bang”.
12. Mammals appeared.
8
3
10
9
11
5
1
7
4
12
6
2
Step6：put the order of development of life into a time line?
Para. 1 The formation (形成) of the
earth.
Para. 2 The importance of water for
life.
Para. 3 A widely accepted theory
about the formation of the
universe.
Para. 4 The arrival of humans and
their effect on the earth.
Para. 5 The development of life on the earth.
match the main idea with each paragraph
To deal with Detail Comprehensive questions(细节理解题), we can do as follows:
*读题---确定题目关键词和选项关键词（key words ）；
*定位---回归原文，确定出处；
*比对---逐一比对选项和关键词出处，结合排除法确定答案。
1.Who are the small clever animals with hands and feet?
2. Are they taking care of the earth well? Why?
Earth Song 地球之歌完整版.qsv
Step7：
Free talk
what things should we do for the earth?
plant trees
recycle rubbish
save water
save electricity
A reporter is interviewing some students about protecting the earth!
Bad phenomena---good methods
summary
The earth is our home and we have the duty to take care of it for ourselves and for our later generations, so it is quite important for us to save energy and to protect our environment.
As a student, there are a lot of methods we can do to save energy at home or at school. Firstly, we can plant as many trees as possible to clean the air. Secondly,we should turn off the light ,water as well as other equipment after using them. What's more, it is suggested to recycle the waste water ,paper and rubbish so that we are able to make full use of resources and try our best to protect the environment.
Above all, everyone can make a great contribution to our environment and make our earth more beautiful.
Group____ is the No. 1!!!
Congratulations!!!
Listen to a song
经典老歌《明天会更好》 英文版 _标清.flv
Tomorrow will be better !
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