福建省邵武市第七中学高二英语必修六Unit4GlobalWarming课件.ppt

Unit 4 Global Warming; What is the greenhouse made and used for?; A greenhouse is made of glass and is used for growing plants, especially during cold weather.zxxkw;_____ the heat from the sun;The Earth is Becoming Warmer --But Does It Matter? 地球在变暖—— 要不要紧？组卷网;Fast Reading;Skimming;3.What is mainly discussed in the passage?A. What has caused the global warming and whether it matters.B. What effects of the global warming will be.C. How serious the global warming could be.D. What the global warming is.;What are the two graphs about?;Careful Reading;;New Words and expressions; During the 20th century, the temperature of the earth didn’t seem to increase much. 2. There is no doubt that global warming is caused by the human activities. 3. Not all scientists believe that the increase in the earth’s temperature is due to the burning of fossil fuels.;4. The levels of carbon dioxide have increased greatly over the last 100—150 years. 5. George Hambley believes that global warming will do good to the earth. 6. We know the effects of global warming. ;How has global warming come about(产生)?;Para 4. the levels of carbon dioxide have increased greatly over the last 100 to 150 years;Dr.Foster:_____________________ George Hambley:_________________ ;Does global warming matter?;cause the sea level to rise severe storms floods droughts famines the spread of diseases disappearance of species;;destruction of species;cause the sea level to rise severe storms floods droughts famines the spread of diseases disappearance of species;; Discussion The earth is becoming warmer .As a student, what should you do about it?;Homework 1. Read the passage again and review the new words and expressions.2. Surf the Internet for more information about global warming;