选修6unit4reading-精品课件.ppt

1、Global warmingUnit 4 3.What methods did the writer use to make his argument more convincing ?1. Features of the article2.The main idea and the details of each paragraphTasks of Discussion1012345678900 98765432105432101 0:9876543210two graphs, (图表）图表）the main text in two columns, (栏）栏）The title-a que

2、stion;, the paragraph on the top in bold （粗（粗体）体）, .Features of the articleWhere is the passage probably taken from?A. a travel guide. B. a science magazine. C. A newspaper. D. an advertisement section. During the 20th century the temperature of the earth rose about one degree Fahrenheit. That proba

3、bly does not seem much to you or me but it is a rapid increase when compared to other natural changes. So how has this come about and does it matter? Earth Cares Sophie Armstrong explores these questions. Topic sentence? Generally speaking, the paragraph on the top is a brief _ to the passage. It is

4、 called Editors Note. introductionWho does me refer to? A scientist. B. Sophie Armstrong. C. An editor . the temperature of the earthrose about one degree Fahrenheit. thisReading tips skim the title and Para 1: Title: THE EARTH IS BECOMING WARMER BUT DOES IT MATTER?Para 1: how has this come about an

5、d does it matter?happenCareful reading Reading tips: In English, some nouns begin with a capital letter(大写字母大写字母), such as names of people and places, titles(标题标题) of magazines, newspapers, stories and books, peoples titles(头衔头衔), etc.global warming From Graph1, we can see the temperature of the ear

6、th _ about _ degree Fahrenheit from 1860-2000. There is no doubt that _ ( see Graph 1) and that it is _that caused this global warming. Para 1increased the earth is becoming warmer.one human activityPara 2 How does human activity cause the global warming ? the burning of fossil fuels to produce ener

7、gygreenhouse gasesatmosphere large quantities of extra carbon dioxide(byproducts)going up of global temperature Does carbon dioxide always bring harm to the earth?No. It prevents the earth from becoming too cold.Para 3-4 From Graph2, we can see the carbon dioxide in the atmosphere _ All the scientis

8、ts accept the data and agree that it is _that has resulted in this increase in carbon dioxide. How high will the temperature increase go? went up from 315 parts to around 370 parts per millionthe burning of more and more fossil fuels As high as 5 degreesPara 5The attitudes of scientists towards this

9、 rise are completely different.Dr. Janice FosterGeorge HambleyThe trend which increases the temperature by 5 degrees would be a catastropheWe should not worry about the high levels of carbon dioxide negativepositiverise of sea level storms floods droughtsplants grow quicker crops produce more a grea

10、ter range of animals on the one hand, . on the other handPara 6:The author probably agrees that _ actually global warming is good for man.B. we should do nothing about the global warming.C. catastrophes will happen if the globe keeps on warming.D. a lot remains to be found out about the effects of g

11、lobal warming.What is the writers attitude towards the effects of global warming? A. positive B. objective C. negative What methods did the writer use to make his argument more convincing ?Charles Keeling found that between these years the carbon dioxide in the atmosphere went up from around 315 par

12、ts to around 370 parts per million.Dr. Janice Foster explains: “There is a natural phenomenon .causing the global temperature to go up.”All scientists subscribe to the view that the increase in theagree withHelp me, help you, help everyone.Return GREEN to the earth!Help me, help you, help everyone.R

13、eturn GREEN to the earth!Homework :Writing Recently, I want to turn to low-carbon lifestyle,would you please offer me some suggestions to help me do better? clothing 2.driving 3.eating 4.working1）Firstly, why not. ? If you do this, .2）Secondly, you should/can. In this way, .3）Thirdly, it would be a good idea if. /By doing this, .Using linking words and reasons to make your suggestions logical(有逻辑的有逻辑的).