1、Words studyGlobal warmingUnit 4 Nuclear leakageDue to the greenhouse effect, the earth is becoming warmer and warmer-But does it matter?Skim the title: THE EARTH IS BECOMING WARMER BUT DOES IT MATTER?A.The earth. B. Global warming. C. Becoming warmer doesnt matter. A.Newspaper B. Novel C. Magazine W
2、ho wrote the article?What is the name of the magazine?Tip: In English, some nouns begin with a capital letter(大写字母), such as names of people and places, titles of magazines, newspapers, stories and books, peoples titles(头衔), etc.Skim the first paragraph: What are the names of the three scientists me
3、ntioned in the article?The organization of the article: IntroductionA titleBodyConclusionSkim : Para. 1Para. 2-3Para. 4-6Para. 7 Match the main idea of each part: Careful reading Greenhouse effect is a natural p . Greenhouse gases in the atmosphere can warm the earth by trapping heat energy. But the
4、 problem begins when we add huge q of extra carbon dioxide to the atmosphere by burning fossil f . Therefore, more heat energy is t in the atmosphere. It is the increased amount of carbon dioxide that is r in global warming. Fill in the blanks about the causes of Greenhouse effect.henomenon uantitie
5、suels rapped esultingTip: You can know somebodys opinion through understanding hisor what he said. What do Dr. Janice Foster and the scientist George Hambley think about the consequences of global warming? Do they agree with one another?Dr. Janice Foster thinks the effects of global warming could be
6、 very serious.George Hambley thinks global warming will be mild with few bad environmental consequences. Dr. Janice FosterGeorge 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 _
7、and will encourage _animals.go upcatastrophe very seriouspositiveproducea greater range ofThe different ideas between Dr. Janice Foster & George HambleyWhat will global warming bring to us in your opinion?(Find out supportingevidence)1. cause the sea level to rise2. severe storms3. droughts/floods4.
8、 famines5. the spread of diseases6. disappearance of speciesPositive effects Negative effects 1. cause the sea level to rise2. severe storms3. droughts/floods4. famines5. the spread of diseases6. disappearance of speciesPositive effects Negative effects 1. make plants grow faster2. crops will produc
9、e more3. a greater range of animals4. make life better True or falseRead the article carefully and finish exercise 2 on page 271. Whats the first graph about?It shows the temperature increase of one degree Fahrenheit between 1860 and 2000.Further Comprehension2. Whats the second graph about?It shows
10、 the carbon dioxide content in the atmosphere from 1957 to 1997.3.The purpose of the first paragraph is to _. A.introduce the writer B. explain a changeC. introduce the topic D. raise a question4. The graphs are used to _.A.illustrate points by providing evidence B. tell the change of temperatureC.
11、tell the content of carbon dioxide in the airD.interest the readers5. 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 i
12、t matter? If it does, as a student, what should you do about it?Discussion:DebateABA : We shall do something about global warming.B: We shall do nothing about global warming.What should we do?We should do nothing about global warming. What have you learned from the passage about global warming? It is said that the climate is going to keep on warming for decades or century. Do you think that we should do nothing about it or not?Assignment Prepare the language points of this passage and underline the important ones.After remembering the vocabulary, do the exercise on Page 28.
