新课标 高中英语选修6第四单元阅读课件
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4. What kind of problem does it begin when huge quantities of extra carbon dioxide into the atmosphere? It means that more heat energy tends to be trapped in the atmosphere causing the global temperature to go up.
How does a greenhouse work? _____ the heat from the sun traps keeps it from _________ escaping ____ heats the air up
trap…from…: keep sth in a place 存住来自…的…
coal oil
produce
carbon dioxide
gas
●●●●●●
global warming
www.themegallery.com
What do you think greenhouse gases do? gases _____ Greenhouse
trap
the heat of the sun and therefore warm the earth. ______ It is known as greenhouse effect __________________. Nowadays our earth is becoming warmer and warmer _____________________.
www.themegallery.com
Para.4
1. What conclusion can you get from Graph2? The levels of carbon dioxide have increased greatly over the last 100 to 150 years.
Earth Care Tip: In English, some nouns begin with a capital letter(大写字母), such as names of people and places, titles of magazines, newspapers, stories and books, people’s titles(头衔), etc..
www.themegallery.com
3. What is 'greenhouse effect'? It is a natural phenomenon which happens when small amounts of gases in the atmosphere, like carbon dioxide, methane and water vapour, trap heat from the sun and therefore warm the earth.
Skimming
★★
Skim the title: THE EARTH IS BECOMING WARMER – BUT DOES IT MATTER?
What is the main topic?
A.The earth.
B. Global warming.
C. Becoming warmer doesn’t matter.
2. What did the scientist Charles Keeling find between the years from 1957 to 1997? He found that the carbon dioxide went up from around 315 parts to around 370 parts per million.
www.themegallery.com
Does global warming matter?
Negative effects Positive effects
www.themegallery.com
Negative effects
1. cause the sea level to rise 2. severe storms 3. floods 4. droughts 5. famines 6. the spread of diseases 7. disappearance of species
www.themegallery.com
Para.5 1. Do the scientists accept the data? They accept the data and agree that it is the buring of fossil fuels that had resulted in this increase in carbon dioxide. 2. How high will the temperature increase go? Dr Janice Foster says that the amount of warming could be as low as 1 to 1.5 degree Celsius, but it could be as high as 5 degrees.
Positive effects
Negative effects
1. cause the sea level to rise 2. severe storms 3. floods 4. droughts 5. famines 6. the spread of diseases 7. disappearance of species
Things that consume energy
computer light/TV/water dispenser refrigerator
hairdryer
car
video player
washing machine
oil
natural gas
energy sources
wave / tቤተ መጻሕፍቲ ባይዱdal energy
Positive effects
1. make plants grow quicker 2. crops will produce more 3. a greater range of animals 4. make life better
nuclear energy
Non-renewable Renewable
• Coal • Oil • Natural gas • Uranium (nuclear energy) • Wind (wind power) • Sun (solar energy) • Water (hydroelectric power) • Plant waste (biomass energy) • Hot springs or geysers (geothermal energy) • The sea (tidal energy)
Fossil fuels
① What are they? ② What are these buildings made of?
greenhouse / glass
Turn to Pre-reading 1,
③What’s the use? Page 25. A greenhouse is used for_____________, growing plants Read & answer. especially during ____ weather. cold
www.themegallery.com
Para.3
1.How do human affect the earth warming up? It is due to the burning of fossil fuels like coal, natural gas and oil to produce energy. 2. What is greenhouse gases? Greenhouse gases are some byproducts of the process of producing energy, the most important one of which is carbon dioxide.
www.themegallery.com
Para.2
1.What conclusion can you make from the Graph1? The earth is becoming warmer. 2.Who is to blame for the earth’s becoming warmer? It is human activity that has caused this global warming rather than a random but natural phenomenon.
Para.1 1. How much did the temperature of the earth rise during the 20th century? About one degree Fahrenheit. 2. What is the question of Sophie Armstrong? So how has this come about and does it matter?
www.themegallery.com
Skimming
What are the names of the three scientists mentioned in the article?
Dr Janice Foster,
Charles Keeling,
George Hambley
www.themegallery.com
www.themegallery.com
methane carbon dioxide water vapor
In the atmosphere surrounding the earth there are gases, which are called
“greenhouse gases”.
Fossil Fuel(矿物燃料)
www.themegallery.com
Para 6 They don't agree with each other.
Dr. Janice Foster thinks the effects of global warming could be very serious. George Hambley thinks global warming will be mild with few bad environmental consequences.
www.themegallery.com
Para 6
What do Dr. Janice Foster and the scientist George Hambley think about the results of global warming? Do they agree with one another? Tip: You can know somebody’s opinion through understanding his quotations(引言) or what he said.
www.themegallery.com
Skimming
★★★
Where does this article most probably come from?
A.Newspaper B. Novel Magazine C.
www.themegallery.com
Skimming ★ ★ Skim the first paragraph: Who wrote the article? Sophie Armstrong What is the name of the magazine?
4. What kind of problem does it begin when huge quantities of extra carbon dioxide into the atmosphere? It means that more heat energy tends to be trapped in the atmosphere causing the global temperature to go up.
How does a greenhouse work? _____ the heat from the sun traps keeps it from _________ escaping ____ heats the air up
trap…from…: keep sth in a place 存住来自…的…
coal oil
produce
carbon dioxide
gas
●●●●●●
global warming
www.themegallery.com
What do you think greenhouse gases do? gases _____ Greenhouse
trap
the heat of the sun and therefore warm the earth. ______ It is known as greenhouse effect __________________. Nowadays our earth is becoming warmer and warmer _____________________.
www.themegallery.com
Para.4
1. What conclusion can you get from Graph2? The levels of carbon dioxide have increased greatly over the last 100 to 150 years.
Earth Care Tip: In English, some nouns begin with a capital letter(大写字母), such as names of people and places, titles of magazines, newspapers, stories and books, people’s titles(头衔), etc..
www.themegallery.com
3. What is 'greenhouse effect'? It is a natural phenomenon which happens when small amounts of gases in the atmosphere, like carbon dioxide, methane and water vapour, trap heat from the sun and therefore warm the earth.
Skimming
★★
Skim the title: THE EARTH IS BECOMING WARMER – BUT DOES IT MATTER?
What is the main topic?
A.The earth.
B. Global warming.
C. Becoming warmer doesn’t matter.
2. What did the scientist Charles Keeling find between the years from 1957 to 1997? He found that the carbon dioxide went up from around 315 parts to around 370 parts per million.
www.themegallery.com
Does global warming matter?
Negative effects Positive effects
www.themegallery.com
Negative effects
1. cause the sea level to rise 2. severe storms 3. floods 4. droughts 5. famines 6. the spread of diseases 7. disappearance of species
www.themegallery.com
Para.5 1. Do the scientists accept the data? They accept the data and agree that it is the buring of fossil fuels that had resulted in this increase in carbon dioxide. 2. How high will the temperature increase go? Dr Janice Foster says that the amount of warming could be as low as 1 to 1.5 degree Celsius, but it could be as high as 5 degrees.
Positive effects
Negative effects
1. cause the sea level to rise 2. severe storms 3. floods 4. droughts 5. famines 6. the spread of diseases 7. disappearance of species
Things that consume energy
computer light/TV/water dispenser refrigerator
hairdryer
car
video player
washing machine
oil
natural gas
energy sources
wave / tቤተ መጻሕፍቲ ባይዱdal energy
Positive effects
1. make plants grow quicker 2. crops will produce more 3. a greater range of animals 4. make life better
nuclear energy
Non-renewable Renewable
• Coal • Oil • Natural gas • Uranium (nuclear energy) • Wind (wind power) • Sun (solar energy) • Water (hydroelectric power) • Plant waste (biomass energy) • Hot springs or geysers (geothermal energy) • The sea (tidal energy)
Fossil fuels
① What are they? ② What are these buildings made of?
greenhouse / glass
Turn to Pre-reading 1,
③What’s the use? Page 25. A greenhouse is used for_____________, growing plants Read & answer. especially during ____ weather. cold
www.themegallery.com
Para.3
1.How do human affect the earth warming up? It is due to the burning of fossil fuels like coal, natural gas and oil to produce energy. 2. What is greenhouse gases? Greenhouse gases are some byproducts of the process of producing energy, the most important one of which is carbon dioxide.
www.themegallery.com
Para.2
1.What conclusion can you make from the Graph1? The earth is becoming warmer. 2.Who is to blame for the earth’s becoming warmer? It is human activity that has caused this global warming rather than a random but natural phenomenon.
Para.1 1. How much did the temperature of the earth rise during the 20th century? About one degree Fahrenheit. 2. What is the question of Sophie Armstrong? So how has this come about and does it matter?
www.themegallery.com
Skimming
What are the names of the three scientists mentioned in the article?
Dr Janice Foster,
Charles Keeling,
George Hambley
www.themegallery.com
www.themegallery.com
methane carbon dioxide water vapor
In the atmosphere surrounding the earth there are gases, which are called
“greenhouse gases”.
Fossil Fuel(矿物燃料)
www.themegallery.com
Para 6 They don't agree with each other.
Dr. Janice Foster thinks the effects of global warming could be very serious. George Hambley thinks global warming will be mild with few bad environmental consequences.
www.themegallery.com
Para 6
What do Dr. Janice Foster and the scientist George Hambley think about the results of global warming? Do they agree with one another? Tip: You can know somebody’s opinion through understanding his quotations(引言) or what he said.
www.themegallery.com
Skimming
★★★
Where does this article most probably come from?
A.Newspaper B. Novel Magazine C.
www.themegallery.com
Skimming ★ ★ Skim the first paragraph: Who wrote the article? Sophie Armstrong What is the name of the magazine?