银川九中高二2班,unit4 global warming,来冬梅

greenhouse effect
Skim the text and find out the main topic of the article. Global warming / The warming of the earth.
Read the text and answer the questions:
Are they renewable or non-renewable?
renewable
wind energy
renewable
solar energy
renewable
hydroelectric power
geothermal energy
renewable
tidal energy
renewable
Construction Main idea of each part
Part 1 (1)
Introduce a debate over the issue of global warming.
Part 2 (2-5) (2-
How global warming comes about.
Part 3 (6)
uranium Ore (铀矿石 铀矿石) 铀矿石
non-renewable
What is the building made of and what is it used for? It is made of glass and plants can grow in it when the weather is cold outside.
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.
List two different attitudes among scientists towards global warming.
Part 4 (7)
It’s up to readers to think and decide whether people should do something about global warming or not.
3. What do they think about global warming? Do they agree with one another? There are some very different attitudes among scientists towards this issue. Some think the effects will be terrible, while some others believe that we should not worry about it.
hydro-electric dams
Water are kept back and raised its level for irrigation or for producing electricity.
Biblioteka Baidu
geothermal (地热的 地热的) 地热的 energy plant
Electricity is generated from hot dry rocks.
Who are the writers of the letters? Ouyang Guang and the editor of Earth Care.
1. Who wrote the magazine article? What is the name of the magazine? 2. What are the names of the three scientists mentioned in the article? 3. What do they think about global warming? Do they agree with one another? 4. What are the two graphs about? 5. What is the main topic of the article?
Unit 4 Global warming
Warming up and reading
Warming up
We depend on
energy to do many
things in our daily lives. For example, 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.
4. The rise in carbon dioxide is causing a steady increase in global warming. 5. George Hambley believes that global warming will do good rather than harm to the earth. 6. It is clear what the effects of global warming will be.
television
fridge
heating
things that use energy in our life
hairdryer
washing machine
things that use energy in our life
electric fan
electromagnetic oven
Do you know how energy is produced? How many sources of energy can you list?
oil refineries
nuclear power plant
Nuclear energy is converted into electricity.
solar panels
pieces of equipment on a roof that collects energy from sunlight in order to heat water and produce electricity
2. The author probably agrees that ______. A. actually global warming is good for man B. we should do nothing about the global warming C. catastrophes will happen if the globe keeps on warming D. a lot remains to be found out about the effects of global warming.
What are the “greenhouse gases”? What do you think greenhouse gases do?
What’s greenhouse effect?
Greenhouse gases perform the same function as the glass in a greenhouse --- they trap the heat of the sun and keep the air surrounding the earth warm.
What is the purpose of the first paragraph?
To introduce the topic. What are the diagrams for? To illustrate points by providing evidence.
Unit 4 Global warming
Have you ever seen a greenhouse?
How does it work?
The air inside is warm because the glass trap the heat from the sun and keeps it from escaping. This makes the greenhouse heat up and so the plants can grow throughout the cold period.
Choose the best answers. 1.Who found out the amount of carbon dioxide in the atmosphere from 1957 to 1997? A. Dr. Janice Foster. B. Charles Keeling. C. George Hambley. D. Sophie Armstrong.
biomass energy
renewable
nuclear power plant
non-renewable
an oil refinery(精炼厂 精炼厂) 精炼厂
non-renewable
coal power station
non-renewable
natural gas
non-renewable
4. What are the two graphs about? Graph 1 shows the temperature increase of one degree Fahrenheit between 1860 to 2000. Graph 2 shows the carbon dioxide content in the atmosphere from 1957 to 1997.
windmills
Wind energy is used as power to produce electricity.
coal power stations Electricity is produced by burning coals.
Oil is refined and made pure.
A: We shall do
something about global warming.
B: We shall do
nothing about global warming.
Debate
What is the structure of a magazine like this and how is the text organized? It has a title, a first paragraph that runs across the page and is in bold, the main text in two columns, graphs /diagrams, two quotes.
True or false 1. The temperature last century didn’t increase much. 2. Everyone believes that global warming is caused by the activities of humans. 3. Janice Foster believes that she can measure the future global rise in temperature.