Unit4_Global_Warming---Reading.ppt

1、,Words study,Global warming,Unit 4,Step2: Check Your Preview (key words),1.化石燃料 2.副產(chǎn)品 3.溫室效應(yīng),1. fossil fuels 2. byproduct 3. greenhouse effect,4.溫室氣體 5.甲烷，沼氣 6.自然現(xiàn)象,4. greenhouse gases 5. methane n. 6. natural phenomena,Step2: Check Your Preview (useful pharses),1.發(fā)生; 造成 2.大量的 3.上升; 增長; 升起 4.導(dǎo)致,1. c

2、ome about 2. quantities of 3. go up 4. result in,5.同意; 贊成; 訂購 6.反對 7.增加，聚集 8.繼續(xù),5. subscribe to 6. be opposed to 7. build up 8. keep on,Due to the greenhouse effect, the earth is becoming warmer and warmer-,But does it matter?,Skimming,Skim the title: THE EARTH IS BECOMING WARMER BUT DOES IT MATTER?

3、,What is the main topic? The earth. B. Global warming. C. Becoming warmer doesnt matter.,Skimming,Where does this article most probably come from?,Newspaper B. Novel C. Magazine,Skimming,Who wrote the article?,What is the name of the magazine?,Tip: In English, some nouns begin with a capital letter(

4、大寫字母), such as names of people and places, titles of magazines, newspapers, stories and books, peoples titles(頭銜), etc.,Skim the first paragraph:,Sophie Armstrong,Earth Care,Skimming,What are the names of the three scientists mentioned in the article?,Dr Janice Foster, Charles Keeling, George Hamble

5、y,Skimming,The organization of the article:,Introduction,A title,Body,Conclusion,Step4: Fast Reading (for main idea),Part1,c. an introduction of global warming,Part 2,Part 3,Part 4,d. How global warming comes about?,a. two different attitudes towards global warming,b. whether people should do sth. a

6、bout global warming,(Para_ ),(Para_to _ ),(Para_ ),(Para_ ),1,2,5,6,7,Skimming,Skim the body part(7 paras):,Para. 1,Para. 2-3,I,II,Para. 4-6,III,Para. 7,IV,Introduction,Body,Conclusion,Scanning,Match the main idea of each part:,Explain how global warming comes about.,Two different attitudes among sc

7、ientists towards the consequences of global warming.,Introduce the problem of global warming.,Give a warning and raise a question for the readers to think over.,I (1),II (2-3),III (4-6),IV (7),Careful reading,Step5: Careful Reading (for detailed information),1.Who wrote the magazine article?,2. What

8、 is the name of the magazine?,3. Whats the meaning of the word “explore” in Line.4? A. to examine a problem carefully. B. to answer a problem C. to visit somewhere,Sophie Armstrong,Earth Care,Part1 (Para.1): an introduction,Part2 (Para.2-5): the cause of global warming,_ of fossil fuels,human activi

9、ty,_ gases are produced,a natural phenomenon called_,_ heat from the sun,The earth is _,burning,greenhouse,greenhouse effect,trap,warmed,Read part 2 carefully and answer: What is the cause of global warming?,Who is to blame for the global warming? Human activity? Or natural phenomenon?,Fill in the b

10、lanks about the causes of Greenhouse effect.,henomenon,uantities,uels,rapped,esulting,(Para2-3),Tip: You can know somebodys opinion through understanding his or what he said.,What do Dr. Janice Foster and the scientist George Hambley think about the consequences of global warming? Do they agree with

11、 one another?,quotations(引言),(Para4-6),12,Part3 (Para.6): two different attitudes,Bad effects,Good effects,pessimistic,optimistic,1. the sea level to rise 2. severe storms 風暴 3. floods 4. droughts 干旱 5. famines 饑荒 6. the spread of disease 7. the disappearance of species,1. make plants grow faster 2.

12、 crops will produce more 莊稼產(chǎn)量更高 3. a greater range of animals 物種的豐富 4. make life better,Janice Foster,George Hambley,1. Do they draw a conclusion at last? 2. The writer probably thinks _. A. It matters. B. It doesnt matter.,Part4 (Para.7): Does it matter?,No,paper bag,switch off,plastic bag,Save our

13、 earth, save ourselves The pictures want to tell us that the earth is getting _, and many creatures are losing their homes. Peoples activities are the main cause. _ _ _ What should we do? As far as Im concerned, _ _ _. Only in this way can we save our earth.,Homework:Writing,The green world will ret

14、urn to us!,go up,catastrophe,very serious,positive,produce,a greater range of,The different ideas between Dr. Janice Foster & George Hambley,Idea-sharing,What will global warming bring to us in your opinion? (Find out supporting evidence),cause the sea level to rise severe storms droughts/floods fam

15、ines the spread of diseases disappearance of species,Positive effects,Negative effects,cause the sea level to rise severe storms droughts/floods famines the spread of diseases disappearance of species,Positive effects,Negative effects,make plants grow faster crops will produce more a greater range o

16、f animals make life better ,True or false,Read the article carefully and finish exercise 2 on page 27,1. Whats the first graph about?,It shows the temperature increase of one degree Fahrenheit between 1860 and 2000.,Further Comprehension,2. Whats the second graph about?,It shows the carbon dioxide c

17、ontent in the atmosphere from 1957 to 1997.,3.The purpose of the first paragraph is to _. introduce the writer B. explain a change C. introduce the topic D. raise a question 4. The graphs are used to _. illustrate points by providing evidence tell the change of temperature tell the content of carbon

18、 dioxide in the air interest the readers 5. Whats the purpose of the last paragraph of the passage?,It functions as a conclusion by asking the reader to reflect on the major theme of the text and to predict what might happen in the future.,The earth is becoming warmer does it matter? If it does, as a student