高二英语选修6 Unit4 Global Warming Reading
THE EARTH IS BECOMING WARMER-BUT DOES IT MATTER?
We depend on
energy to do many
things in our daily lives. For exam
ple, energy lights our cities and heats our buildings. Make a list of things that use energy in your home, in your school, or any other places you can think of.
things that use energy in our life
things that use energy in our life
Do you know how energy is produced? How many sources of energy can you list?
Wind energy is used as power to
coal power stations Electricity is produced by burning coals.
Oil is refined and made pure.
nuclear power plant
Nuclear energy is converted into electricity.
pieces of equipment on a roof that collects energy from sunlight in order to heat water and produce electricity
Water are kept back and raised its level for irrigation or for producing electricity.
geothermal (地热的) energy plant
Electricity is generated from hot dry rocks.
Are they renewable or non-renewable?
renewable wind energy
nuclear power plant
an oil refinery(精炼厂)
coal power station
uranium Ore (铀矿石)
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
How does a greenhouse work? _____ the heat from the sun traps keeps it from _________ escaping ____ heatsthe air up
trap…from…: keep sth in a place 存住来自…的…
methane carbon dioxide water vapor
In the atmosphere surrounding the earth there are gases, which are called
Fossil Fuel(矿物 燃料) coal oil
What do you think greenhouse gases do?
Greenhouse gases _____ 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 _____________________.
1.Compared to the past few years, what’s the weather like this year ? 2.Do you want to check it out? Here are some pictures based on the actual life scenes in these years for you to refer to.
In addition ,you may turn to Graph 1. on Page 26 to find out the changes of the temperatures from long-term average.
Question: Do you think the whole world is becoming warmer and warmer? But does it matter? This is the topic we are going to discuss for today.
Unit4 Global Warming
Reading The Earth Is Becoming Warmer – But Does It Matter?
Glance quickly at the magazine article and answer the questions.
1.Who wrote the magazine article? What is the name of the magazine?
Sophie Armstrong wrote the magazine article. The name of the magazine is “Earth care”.
2.What are the names of the three scientists mentioned in the article?
They are Dr.Janice Foster,Charles Keeling and George Hambley.
3.What do they think about global warming? Do they agree with one another?
They don’t agree with each other.
Some think the effects will be terrible, while some others believe that we should not worry about it. 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.
4.What are the two graphs about?
Graph 1 shows the temperature increase of one degree Fahrenheit from 1860 to 2000. Graph 2 is about the carbon dioxide content in the atmosphere from 1957 to 1997. 5.What is the main topic of the article?
Global warming / The warming of the earth.
True or false
Read the article carefully and finish Part 2 on Page 27
1.The temperature last century didn’t increase much. ( F) 2.Everyone believes that global warming is caused by the activities of humans. (F )
3.Janice Foster believes that global warming is caused by burning fossil fuels. (T ) 4.Natural gas is a greenhouse gas. ( F) 5.Carbon dioxide is a byproduct of burning fossil fuels. ( T )
6.People accept Charles Keeling’ s data because he took accurate measurements. (T )
7.Flooding could be one of the effects of future global warming. ( T ) 8.George Hambley believes scientists are just guessing about the effects of global warming. (T ) 9.George Hambley is worried about the effects of carbon dioxide on plant growth. ( F)
10.It is clear what the effects of global warming will be. ( F)
1.Read the text again and try to get the main idea of the article.
The main idea of the passage: Part 1(Paragraphs 1)
Introduce a debate over the issue of global warming
Part 2(Paragraphs 2-4)
Illustrate how global warming comes about
List two different attitudes among scientists towards global warming
Part 4(Pa 11)
It’s up to readers to think and decide whether people should do something about global warming or not
How has the global warming come about?
①Human activity--- burning of fossil fuels.
② Greenhouse effect--- greenhouse gases--- we need those gases.
③ We add huge quantities of extra carbon dioxide to the atmosphere by burning Fossil fuels. The carbon dioxide content of the atmosphere went up from around 315 parts per million to around 370 parts per million from 1957 to 1997 (See Graph 2 on Page 26 )
The two different viewpoints towards the effects of global warming between Dr. Janice Foster and George Hambley
Dr. Janice Foster Carbon dioxide has caused the global temperature to go up __________. An increase of five degrees would be a ____________ and catastrophe could be very serious ______________.
George Hambley More carbon dioxide is positive a __________ thing, which makes crops produce __________ and will encourage a greater range of ____________________.
Of the two ideas, which are you in
favor of ?
The Dr Janice Foster’s.
Because we have witnessed a large number of disasters predicted by some people.
What are the effects and disasters of global warming?
The glaciers of the Poles are starting to melt due to the increasing temperatures caused by global warming.
What’s worse ,the glaciers(冰川） of the South Pole are beginning to crack（破裂）
The sea level to rise.
the spread of diseases
destruction of species
What should we do about the terrible effects above?
Try to reduce the use of motor vehicles
Solar energy car
Cleaning the rubbish
Return the green world to us
1. Write an argumentation titled “Environment Protection ”based on the viewpoints in the text and yours.
2. Preview the language points in the text and find out your difficult points
Let’s make this world a better place !