From the following pictures, you will know where all this energy comes from. windmillsa coal power station

an oil refinery a nuclear power plant

solar panels hydro-electric dam

Sample lists Things that use energy Sources of energy Renewable / non-renewable light heating coal non-renewable oil non-renewable

television cassette player video recorder computer natural gas non- renewable wind (wind power) renewable sun (solar energy) renewable uranium (nuclear energy) non- renewable

fridge stove washing machine hairdryer water (hydro- electric) renewable plant waste (biomass energy) renewable hot springs or geysers (geothermal energy) renewable the sea (tidal energy) renewable

Renewable or non-renewable?

Renewable or non-renewable?

What is told in the picture?

What is the greenhouse made and used for?

A greenhouse is made of glass and is used for growing plants, especially during cold weather.

How does it work? The air inside is warm because the glass traps 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.

What are the “greenhouse gases”? In the atmosphere surrounding the earth there are gases called “greenhouse gases”, including carbon dioxide, methane ( 甲烷, 沼气 ) and water vapor.

What do you think greenhouse gases do? They trap the heat of the sun and keep the air surrounding the earth warm.

Main ideas of each part Writing techniques (Paragraph 1) Introduce a debate over the issue of global warming. Raising a question

Main ideas of each part Writing techniques (Paragraphs 2---3) Illustrate how global warming comes about. Giving examples, using graphs, explanation.

(Paragraphs 4---5) List two different attitudes among scientists towards global warming. Giving examples, making contrast.

(Paragraph 6) It’s up to readers to think and decide whether people should do something about global warming or not. Using a question, leaving readers to think over the issue.

I.Read the text carefully and fill in the blanks. ScientistsOpinion Janice Foster ◆ We need ______ like carbon dioxide, methane and water vapour, but if we add huge ___________ extra carbon dioxide to the atmosphere by burning fossil fuels, it will cause the ________________ to go up. gases quantities of global temperature

ScientistsOpinion Janice Foster ◆ Over the next 100 years the amount of warming could be as low as 1 to 1.5 degrees Celsius, but it could be as high as 5 degrees Celsius. ◆ An increase of five degrees would be a ___________. catastrophe

ScientistsOpinions George Hambley ◆ Believes that we shouldn’t worry about __________ of carbon dioxide in the air. ◆ Predicts that any warming will be mild with few bad environmental ____________. ◆ ______ that more carbon dioxide is actually a ________ thing, which will make life for human beings better. high levels consequences States positive

II. Choose the best answer. 1. The first graph in the text is used to ________. A. attract readers’ attention B. introduce the topic of global warming C. act as an example D. support the opinion and make it more convincing

2. The author probably agrees that ________. A. global warming is good for us B. we can do nothing about global warming C. catastrophes will happen if the globe keeps on warming D. much remains to be found out about the effects of global warming

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? 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.

Graph I shows the temperature increase of one degree Fahrenheit between 1860 to What are the two graphs about?

Graph 2 shows 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.

1. The temperature in the last century did not seem to 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.

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.

We should do nothing about the global warming.

Debate Instructions ● Get into groups of six. Decide which three in your group are going to agree with the statement (Group A) and which three are going to disagree with the statement (Group B).

● Group A discuss why they agree with the statement; Group B discuss why they disagree. ● Group A and B get together. Tell each other the reasons for agreeing or disagreeing with the statement.

Homework 1. Read the passage again and review the new words and expressions. 2. Prepare the debate in groups. 3. Preview Using Language -- WHAT CAN WE DO ABOUT GLOBAL WARMING?