選修六unit4-Reading

1、Unit 4 Global warmingReading高二人教新課標(biāo)版選修六高二人教新課標(biāo)版選修六Pre-reading1. Have you ever seen a greenhouse?is made of glass used for growing plants, especially during cold weather.2. How does the greenhouse work?The air inside was warm because the glass traps(擋住擋住, 吸收吸收) the heat from the sun and keeps it from

2、 escaping(逃跑逃跑). This makes the greenhouse heat up(熱量熱量上升上升) and so the plants can grow throughout(在在期間期間) the cold period.3. What are Greenhouse Gases?Methane4Ozone51Carbon dioxide2Water vapor1 1Nitrous oxide34. Greenhouse EffectGlobal warmingGreenhouse gases trapped the heat from the sun, which ca

3、uses the temperature of earth goes up. Greenhouse effectGreen house effectTHE EARTH IS BECOMING WARMER BUT DOES IT MATTER? Reading 1) How many paragraphs does the reading 2) Make a division of the text.Read the passage quickly (3)text consist of? Please number them.Fast-ReadingMain ideas of each par

4、t:Introduce a debate over the issue of global warming. raising a questionHow global warming comes about.giving examples,using graphs, explanation List two different attitudes among scientists towards global warming.Its up to readers to think and decide whether people should do something about global

5、 warming or not.giving examples, making contrastleaving a questionAre the risks too great?So can you predict the future of the global warming? Who writes this article?Sophie Armstrong of Earth CareWhat rose about one degree Fahrenheit?The temperature of the earthCareful readingIntroduction of global

6、 warming. 2. _1. _(2-5)How global warming comes about?the burning of fossil fuels human activityCarbon dioxideMethaneWhat are the Greenhouse gases?1.2.3.Water vaporWhat are the effects of global warming?v a rise in the sea level v Severe storms, droughts, famines, the spread of diseases, and the dis

7、appearance of speciesv Make plants grow fastereffectsThe different ideas between Dr. Janice Foster & George HambleyDr. Janice Foster George HambleyCarbon dioxide has caused the global temperature to _. An increase of five degrees would be a _ and could be _.More carbon dioxide is a _ thing,which

8、 makes crops _ more and will encourage _.go upcatastrophevery seriouspositiveproducea greater range of animals4. What are the two graphs about?The first graph shows the temperature increase of one degree Fahrenheit between 1860 to 2000. The second graph shows the carbon dioxide content in the atmosp

9、here from 1957 to 1997.from around 315 parts per million to around 370 parts per millionHuge quantities of extra carbon dioxideFrom 1957 to 19975. What is the main topic of the article?Global warming/ the warming of the earth.1. Who found out the amount of carbon dioxide in the atmosphere from 1957

10、to 1977? A. Dr. Janice Foster. B. Charles Keeling. C. George Hambley. D. Sophie Armstrong.BChoose the best answer. 2. Which of the following is Dr Janice Fosters opinion? A. The result of the temperature increase will be serious. B. The amount of warming is nothing serious. C. We neednt worry about

11、high levels of carbon dioxide. D. Global warming is a natural phenomenon.A3. Which of the following is TRUE according to the text? A. The temperature of the earth increased about one degree Fahrenheit during the 20th century. B. The carbon dioxide content in the air increased by 70 parts per million

12、 from 1957 to 1997. C. All scientists accept the data in graph 2 except Charles Keeling. D. Janice Foster says that more carbon dioxide will make plants grow faster.A4. The author probably agrees that _A. actually global warming is good for man.B. we should do nothing about the global warming.C. cat

13、astrophes will happen if the globe keeps on warming.D. a lot remains to be found out about the effects of global warming.DTrue or false?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.TTF4. The rise in carbon dioxide is causing a steady increase in global warming. 5. George Hambley believes that global warming will