人教版必修六Unit4GlobalWarmingreading

1、会计学1人教版必修六人教版必修六Unit4GlobalWarmingreading What are they? What are these buildings made of? Whats the use? greenhouse / glassA greenhouse is used for_, especially during _ weather.Turn to Pre-reading 1,Page 25.Read & answer. growing plantscold_ the heat from the sunkeeps it from _ the air upHow d

2、oes a greenhouse work?trapfrom: keep sth in a place存住来自存住来自的的trapsescapingheatsIn the atmosphere surrounding the earth there are gases, which are called “greenhouse gases”.methane mi:enwater vaporcarbon dioxideGreenhouse gases _ the heat of the sun and therefore _ the earth.It is known as _.Nowadays

3、 our earth is becoming _.greenhouse effecttrapwarmwarmer and warmerSkim : Para. 1Para. 2-5Para. 6Para. 7 B. Introduce a debate over the issue of global warming. A. How global warming comes about. D. List two different attitudes among scientists towards global warming.C. Its up to readers to think an

4、d decide whether people should do something about global warming or not.1.Who wrote the magazine article? 2.What is the name of the magazine? Answer the questions.Sophie Armstrong.The name is Earth Care.Introduce a debate over the issue of global warming. Reading tips: In English, some nouns begin w

5、ith a capital letter(大写字母), such as names of people and places, titles(标题) of magazines, newspapers, stories and books, peoples titles(头衔), etc.Reading tips skim the title and Para 1: Title: THE EARTH IS BECOMING WARMER BUT DOES IT MATTER?Para 1: how has this come about and does it matter?How global

6、 warming comes about.1.Everyone believes that global warming is caused by the_. human activitiesA. The burning of more and more fossil fuels. B. The natural phenomenon.carbon dioxidecoaloil gas produceWhat are the two graphs about?Graph 1 shows the temperature difference (温度差温度差异异) from 1860 to 2000

7、.Graph 2 shows the carbon dioxide content(二氧化碳含量) in the atmosphere from 1957 to 1997.Graph 1:Graph 2:How global warming comes about.The rise in carbon dioxide is causing a steady increase in temperature.more heat more heat trappedtrapped result in byproduct more CO2 more CO2Global WarmingGlobal War

8、mingList two different attitudes among scientists towards global warming.Tip: You can know somebodys opinion through understanding hisor what he said. What do Dr. Janice Foster and the scientist George Hambley think about the results of global warming? Do they agree with one another? Dr. Janice Fost

9、erGeorge 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 makes crops _ and will encourage _animals.go upcatastrophe very seriouspositiveproducea greater range ofThe different ideas between Dr

10、. Janice Foster & George HambleyDr. 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. DebateA : We shall do something about global warming.B: We shall do nothing about global warming

11、.Does that mean we should do nothing? Or , are the risks too great?Positive effects Negative effects Human activityGreenhouse gases _ the heat of the sun and therefore _ the earth.It is known as _.Nowadays our earth is becoming _.greenhouse effecttrapwarmwarmer and warmerReading tips skim the title

12、and Para 1: Title: THE EARTH IS BECOMING WARMER BUT DOES IT MATTER?Para 1: how has this come about and does it matter?How global warming comes about.1.Everyone believes that global warming is caused by the_. human activitiesA. The burning of more and more fossil fuels. B. The natural phenomenon.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