人教版选修6unit4reading (2).ppt

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1、人教版人教版选修修6unit4readingDo you know anything that consume(消耗消耗)energyin the home and the class?Do you know any kind of energy resource?Warming up lights,television,computer,washing machine,hairdryer,camera,windcoaloilnuclear power solar power water 4renewable 可再生的renewablerenewablenon-renewable 不可再生的n

2、on-renewablenon-renewableWhat is the greenhouse made and used for?Greenhouse A greenhouse is made of glass and is used for growing plants,especially during cold weather.Greenhouse Effect温室效温室效应应8trap the heat from the sunkeep it from escapingwarmA greenhouseHow does it work?9How does this global war

3、ming come about?Man burns fossil _-produce huge quantities of greenhouse gases,esp._-the gases trap h_ from the sun and therefore w_ the earth.fuelscarbon dioxideheatwarmGreenhouseGreenhouse EffectGreenhouse gasesGlobal warmingreasonsA rising populationThe use of energyGreenhouse gasesBurning of fos

4、sil fuels(coal,oil and natural gas)Agricultural industryDestruction of forests11Skim the article:What are the names of the three scientists mentioned in the article?Who wrote the article?What is the name of the magazine?Fast Reading 12What is the writing style?A.Expositive (说明文明文)B.Practical(应用文应用文)

5、C.Argumentative(议论文议论文)D.Narrative(记叙文记叙文)The organization of an expositive essay:IntroductionA titleBodyConclusionPara.1Para.2-6Para.713Look through the main text:Para.1Para.2-5I III IIPara.6IIIIIIPara.7IVIV Introduction Body Conclusion14Match the parts with the main ideas:Explain how global warmin

6、g comes about.List two different attitudes among scientists towards global warming.Introduce the topic of global warming.Its up to readers to think and decide whether people should do something about global warming or not.Part 1 Part 2Part 4Part 3 15Match the parts with the writing skills:Using a qu

7、estion,leavingreaders to think over the issue Raising a question Giving examples,making contrast(comparison)Giving examples,using graphs,explanation Part 1Part4Part3Part 216The 2 graphs are used to explain points by providing .evidenceevidence or argument?Read the 2 graphs:Detailed reading17The 1st

8、graph shows the globalt between 1860 and .The temperature i and decreased over this period but on the whole it i by around one degree Fahrenheit.During this time,the earth reached its l temperature in about 1910 and its highest in .There was a steady increase in the temperature during the 20 years a

9、fter 1980.We can see from the graph that the earth has become w since early last century.emperature2000ncreasedncreased owest2000armerDetailed readingRead something more about the 2 graphs:18The 2nd graph shows the amount of c d in the atmosphere from to 1997.The CO2 c steadily i over this forty-yea

10、r period.It went up from 315 to parts p million.arbonioxide1957ontentncreased370erTip:While reading a graph,youd better pay attention to the numbers.Detailed reading 19True orTrue or f false?(alse?(P2P2)Reading Comprehension21.The temperature in the last century didnt see m to increase much.2.Everyo

11、ne believes that global warming is caused by the activities of humans.3.Janice Foster believes 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

12、 to the earth.6.It is clear what the effects of global warming will be.20What do the 3 scientists think about global warming?Do they agree with one another?Read the article carefully.They dont agree with one another.Detailed reading3.What do they think about global warming?Do they agree with one ano

13、ther?They dont agree with each other.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.Charles Keeling believes it is the burning of more and more fossil fuels that is resulting in a b

14、ig increase in carbon dioxide.Using languageWhat can we do about global warming?Turn a(n)_off when youre not using it.Put on more clothes instead of turning up the_Walk or_instead of taking motor vehicles._cans,bottles,plastics and newspapers.Buy things made from_.Buy products that are economical wi

15、th _._in your garden or your school yard.Talk with your family and friends about_.electrical applianceheat ride a bike RecyclerecycledmaterialsenergyPlant treesglobalwarming25 The earth is becoming warmer.In your opinion,does it matter?Discussion:A:We shall do something about global warming.B:We shall do nothing about global warming.Your reasons26AssignmentAssignmentTalk about the effects of global warming.Think about what individuals should do.Call on people to protect the earth and design a slogan(口号）口号）.Everyone can make a difference谢谢！