外研版（2019）选择性必修 第二册Unit 6 Survival Developing ideas Reading课件(共25张PPT，内镶嵌视频)
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| 名称 | 外研版（2019）选择性必修 第二册Unit 6 Survival Developing ideas Reading课件(共25张PPT，内镶嵌视频) |  | |
| 格式 | pptx | ||
| 文件大小 | 25.7MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 外研版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2024-10-28 21:18:54 | ||
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(共25张PPT)
Unit 6 Survival
Developing ideas
Plan B:Life on Mars
1．Find out the reasons for humans to live on Mars.
2．Make correct inferences and get the evidences.
3．Retell the passage simply.
4．Share opinions about Mars after learning the passage.
Learning objectives
Where is Mars How much do you
know about Mars
Located at an average distance from the sun of 228 million kilometres, Mars is the fourth planet of the Solar System. Mars is also known as the Red Planet, because of its distinctive colour. Visible from Earth with the naked eye, Mars has played a central in the mythologies of many cultures, and in modern times it has exercised a fascination over all those interested in the search for extra-terrestrial life and the human colonization of other worlds.
Mars is slightly more than half the size of Earth, with corresponding lower gravity. It’s a dry, rocky planet, with white polar “ice” caps that consist mostly of frozen carbon dioxide. The average temperature on Mars is minus 63 degrees Celsius. A day on Mars is about as long as a day on Earth, plus about 39 minutes. Seasons and years are twice as long as they are on Earth.
Since the 1960s, Mars has been the subject of several unmanned exploration missions. However, many such early missions failed.
More About Mars
It may be difficult to imagine when people will live on the planet Mars.
1. Mars is the ____ smallest planet in the solar system.
a. second b. third c. fourth
2. The surface of Mars is covered in ________.
a. rocks b. water c. grass
3. The average recorded temperature on Mars is ____.
a. 40o C b. 2o C c. -63o C
4. One day on Mars is about _________ long.
a. 18hours b. 24hours c. 37hours
Is it possible to live on Mars
火星大气以二氧化碳为主（95.3%），既稀薄又寒冷，遍布撞击坑、峡谷、沙丘和砾石，没有稳定的液态水。南半球是古老、充满撞击坑的高地，北半球则是较年轻的低地平原。
Choose the magazine in which you would most likely find the passage and give your reasons.
All About Space
The Traveller
Environmental Concerns
Biology for Fun
The characteristic of each magazine:
The Traveller: focuses on the person who travels, what he sees, what he does or how he feels.
All About Space: focuses on the secret of the outer space, showing various fascinating natural phenomena.
Environmental Concerns: focuses on various environmental problems, which usually draws people’s great concern.
Biology for Fun: focuses on studies about life and living organisms for fun, including their physical structure and chemical processes.
1 What is Plan A Why is Plan B needed
2 Why Mars
Pre-reading
Read and check your prediction.
Para. 1 _______ to life on Earth
Para. 2 _____________
In the 1960s and 1970s, the greatest fear was that… could be wiped out by nuclear missiles.
Today, however, environmental problems have taken over as the greatest risk to life on Earth.
Plan A
Plan B
Mars is relatively close to Earth and has a ____________ environment than that of other planets.
less hostile
/ h sta l/
Risks
Why Mars
While-reading
Para. 1 Risks to life on Earth
Para. 2 Why Mars
nuclear missiles → environmental problems
How far have we gone in exploring Mars
They are mentioned to _________________________________________
_________________________________.
less hostile
Mars Village in North-west China’s Qinghai Province
Mars Desert Research Station
show that our interest in Martian exploration
is greater than ever before
Para 3
What efforts have we made to explore Mars
For one thing, we have been sending unmanned spacecraft to Mars, with probes sending back valuable data as well as stunning images and robotsttesting the soil and searching for resources, water and signs of life.
China's national space agency launched the spacecraft, called Tianwen-1(天问一号）
What
Launch: 2020.7.23
Land on Mars: 2021. 2
When
By one mission, orbiting, landing and roving环视 are all to be acheived.
Mission
This is China's first independent mission to Mars.
Meaning
unmanned
missions
Manned
missions
For another, space agencies of various countries are planning manned missions to Mars.
Chinese efforts
China's national space agency is expected to launch the manned spacecraft to Mars in 2033.
Would you like to be one of the first people to live on Mars
Why or why not
Para 4
What do we need to send people to Mars
What difficulties do we have sending people to Mars
Para 4
the Biosphere 2 experiment 生物圈2号
Arizona desert
people
animals
plants
oxygen
food
water
a better understanding
own
Was it possible Example
此处输入您的标题
LOREM IPSUM DOLOR SIT AMET CONSECTETUER
1.Clear plate campaign
2.No plastic(plastic bags, plastic straws)
3.Save water
4.No littering
5.Save electricity
6.Recycle
Para 5
For now, What can we do
We need to take much better care of our own planet.
Plan A.
Environmental problems & Global warming
Choose the statements that can be inferred from the passage.
Humans have yet not visited Mars.
People want to go to Mars on holiday.
There are plants growing on Mars.
The greatest to life on Earth used to be nuclear missiles.
One day, humans will have to go and live on another planet.
Our Plan A includes developing renewable energy resources.
The Biosphere 2 experiment ended in failure.
Since the 1960s, we have been sending unmanned spacecraft to Mars... space agencies of various countries are planning manned missions to Mars that could take place within the next 25 years.(Para3)
In the 1960s and 1970s, the greatest fear was that the human race, and possibly all advanced life forms on the planet, could be wiped out by nuclear missiles.(Para1)
Scientists are thinking of ways to lower this risk, such as replacing coal and oil with forms of renewable energy.(Para1)
Although the two-year experiment was not a success, it did provide us with a better understanding of how humans might be able to live on another planet.(Para4)
“While the Moon can be reached within days, it would take months to reach Mars, travelling through dangerous solar radiation.”
What information can you infer from this sentence
Learning to learn
Sometimes, we need to
that are not directly stated within the . For example, from the sentence “While the Moon can be reached within days, it would take months to reach Mars, travelling through dangerous solar radiation”, we can that the Moon is less exposed to dangerous radiation than Mars.
can also help us
given information
infer
Headings and pictures
make educated
about a text.
(有根据的)guesses
form opinions and draw conclusions
given information
+
headings
+
pictures
form opinions
+
draw conclusions
+
make educated guesses
infer
Sometimes, we need to form opinions and draw conclusions that are not directly stated within the given information. For example, from the sentence “While the Moon can be reached within days, it would take months to reach Mars, travelling through dangerous solar radiation”, we can infer that the Moon is less exposed to dangerous radiation than Mars. Headings and pictures can also help us make educated guesses about a text.
推理判断是在理解原文字面信息的基础上，根据已知事实或前提对文中未提及的情况进行推测，即从已知信息中推断出未知信息，从而得出文章中隐含的深层意义。
Solve Earth's problems
Think & Share
-Which is better Why
Plan A
Plan B
Live on Mars
Think and Share
Can you think of a “Plan C” to save people from the problems on Earth
Assignment
Unit 6 Survival
Developing ideas
Plan B:Life on Mars
1．Find out the reasons for humans to live on Mars.
2．Make correct inferences and get the evidences.
3．Retell the passage simply.
4．Share opinions about Mars after learning the passage.
Learning objectives
Where is Mars How much do you
know about Mars
Located at an average distance from the sun of 228 million kilometres, Mars is the fourth planet of the Solar System. Mars is also known as the Red Planet, because of its distinctive colour. Visible from Earth with the naked eye, Mars has played a central in the mythologies of many cultures, and in modern times it has exercised a fascination over all those interested in the search for extra-terrestrial life and the human colonization of other worlds.
Mars is slightly more than half the size of Earth, with corresponding lower gravity. It’s a dry, rocky planet, with white polar “ice” caps that consist mostly of frozen carbon dioxide. The average temperature on Mars is minus 63 degrees Celsius. A day on Mars is about as long as a day on Earth, plus about 39 minutes. Seasons and years are twice as long as they are on Earth.
Since the 1960s, Mars has been the subject of several unmanned exploration missions. However, many such early missions failed.
More About Mars
It may be difficult to imagine when people will live on the planet Mars.
1. Mars is the ____ smallest planet in the solar system.
a. second b. third c. fourth
2. The surface of Mars is covered in ________.
a. rocks b. water c. grass
3. The average recorded temperature on Mars is ____.
a. 40o C b. 2o C c. -63o C
4. One day on Mars is about _________ long.
a. 18hours b. 24hours c. 37hours
Is it possible to live on Mars
火星大气以二氧化碳为主（95.3%），既稀薄又寒冷，遍布撞击坑、峡谷、沙丘和砾石，没有稳定的液态水。南半球是古老、充满撞击坑的高地，北半球则是较年轻的低地平原。
Choose the magazine in which you would most likely find the passage and give your reasons.
All About Space
The Traveller
Environmental Concerns
Biology for Fun
The characteristic of each magazine:
The Traveller: focuses on the person who travels, what he sees, what he does or how he feels.
All About Space: focuses on the secret of the outer space, showing various fascinating natural phenomena.
Environmental Concerns: focuses on various environmental problems, which usually draws people’s great concern.
Biology for Fun: focuses on studies about life and living organisms for fun, including their physical structure and chemical processes.
1 What is Plan A Why is Plan B needed
2 Why Mars
Pre-reading
Read and check your prediction.
Para. 1 _______ to life on Earth
Para. 2 _____________
In the 1960s and 1970s, the greatest fear was that… could be wiped out by nuclear missiles.
Today, however, environmental problems have taken over as the greatest risk to life on Earth.
Plan A
Plan B
Mars is relatively close to Earth and has a ____________ environment than that of other planets.
less hostile
/ h sta l/
Risks
Why Mars
While-reading
Para. 1 Risks to life on Earth
Para. 2 Why Mars
nuclear missiles → environmental problems
How far have we gone in exploring Mars
They are mentioned to _________________________________________
_________________________________.
less hostile
Mars Village in North-west China’s Qinghai Province
Mars Desert Research Station
show that our interest in Martian exploration
is greater than ever before
Para 3
What efforts have we made to explore Mars
For one thing, we have been sending unmanned spacecraft to Mars, with probes sending back valuable data as well as stunning images and robotsttesting the soil and searching for resources, water and signs of life.
China's national space agency launched the spacecraft, called Tianwen-1(天问一号）
What
Launch: 2020.7.23
Land on Mars: 2021. 2
When
By one mission, orbiting, landing and roving环视 are all to be acheived.
Mission
This is China's first independent mission to Mars.
Meaning
unmanned
missions
Manned
missions
For another, space agencies of various countries are planning manned missions to Mars.
Chinese efforts
China's national space agency is expected to launch the manned spacecraft to Mars in 2033.
Would you like to be one of the first people to live on Mars
Why or why not
Para 4
What do we need to send people to Mars
What difficulties do we have sending people to Mars
Para 4
the Biosphere 2 experiment 生物圈2号
Arizona desert
people
animals
plants
oxygen
food
water
a better understanding
own
Was it possible Example
此处输入您的标题
LOREM IPSUM DOLOR SIT AMET CONSECTETUER
1.Clear plate campaign
2.No plastic(plastic bags, plastic straws)
3.Save water
4.No littering
5.Save electricity
6.Recycle
Para 5
For now, What can we do
We need to take much better care of our own planet.
Plan A.
Environmental problems & Global warming
Choose the statements that can be inferred from the passage.
Humans have yet not visited Mars.
People want to go to Mars on holiday.
There are plants growing on Mars.
The greatest to life on Earth used to be nuclear missiles.
One day, humans will have to go and live on another planet.
Our Plan A includes developing renewable energy resources.
The Biosphere 2 experiment ended in failure.
Since the 1960s, we have been sending unmanned spacecraft to Mars... space agencies of various countries are planning manned missions to Mars that could take place within the next 25 years.(Para3)
In the 1960s and 1970s, the greatest fear was that the human race, and possibly all advanced life forms on the planet, could be wiped out by nuclear missiles.(Para1)
Scientists are thinking of ways to lower this risk, such as replacing coal and oil with forms of renewable energy.(Para1)
Although the two-year experiment was not a success, it did provide us with a better understanding of how humans might be able to live on another planet.(Para4)
“While the Moon can be reached within days, it would take months to reach Mars, travelling through dangerous solar radiation.”
What information can you infer from this sentence
Learning to learn
Sometimes, we need to
that are not directly stated within the . For example, from the sentence “While the Moon can be reached within days, it would take months to reach Mars, travelling through dangerous solar radiation”, we can that the Moon is less exposed to dangerous radiation than Mars.
can also help us
given information
infer
Headings and pictures
make educated
about a text.
(有根据的)guesses
form opinions and draw conclusions
given information
+
headings
+
pictures
form opinions
+
draw conclusions
+
make educated guesses
infer
Sometimes, we need to form opinions and draw conclusions that are not directly stated within the given information. For example, from the sentence “While the Moon can be reached within days, it would take months to reach Mars, travelling through dangerous solar radiation”, we can infer that the Moon is less exposed to dangerous radiation than Mars. Headings and pictures can also help us make educated guesses about a text.
推理判断是在理解原文字面信息的基础上，根据已知事实或前提对文中未提及的情况进行推测，即从已知信息中推断出未知信息，从而得出文章中隐含的深层意义。
Solve Earth's problems
Think & Share
-Which is better Why
Plan A
Plan B
Live on Mars
Think and Share
Can you think of a “Plan C” to save people from the problems on Earth
Assignment