选修六_unit4_reading.ppt

《选修六_unit4_reading.ppt》由会员分享，可在线阅读，更多相关《选修六_unit4_reading.ppt（34页珍藏版）》请在三一办公上搜索。

1、Unit 4Period 2 Reading,GLOBAL WARMING,What are the main causes of grobal warming mentioned in the video?What are the effects of global warming?Does everyone subscribe to the view that global warming is bad?,Is global warming good or bad?,？,Reading,The Earth Is Becoming Warmer But Does It Matter?,1)H

2、ow many paragraphs does the reading 2)Make a division of the text.,text consist of?Please number them.,TASK 1,Read the passage quickly and do the following tasks:,Part1(1),Introduces a debate over the issue of_.,raising a question,Part2_,How global warming comes about.,giving examples,using graphs,e

3、xplanation,Main ideas of each part:,(2-5),global warming,Part3_,Lists two different_among scientists towards global warming.,Its up to readers to_ _whether people should do something about global warming or not.,giving examples,making contrast,leaving a question,(6),attitudes,think and,decide,TASK 2

4、,Reading for details,Who writes this article?Sophie Armstrong of Earth CareWhat rose about one degree Fahrenheit?The temperature of the earth,Part1(1),Introduction of global warming.,2._,1._,Part2(2-5),How global warming comes about?,the burning of fossil fuels,human activity,Carbon dioxide,methane

5、and water vapor trap heat from the sun and therefore warm the earth.,What kind of the gases warm the earth and how?,What are the two graphs about?,The first graph shows the temperature increase of one degree Fahrenheit between 1860 to 2000.,The second graph shows the carbon dioxide content in the at

6、mosphere from 1957 to 1997.,Part3(6),List two different attitudes among scientists towards global warming.,catastrophe,serious,rise,storms,floods,droughts,famines,diseases,species,worry about,positive,produce,quicker,a greater range of,Even if we start reducing the amount of carbon dioxide and other

7、 greenhouse gases,the climate is going to keep on warming for decades or centuries.,Does that mean we should do nothing?,Debate,A,B,A:We shall do something about global warming.,B:We shall do nothing about global warming.,What should we do to protect our earth?,Discussion:,Its high time that we took

8、 immediate measures to protect our earth from being polluted.,To begin with,we should not throw any rubbish here and there.Instead,we should pick it up.,Besides,we are supposed to ban the abuse of plastic bags.Plastic bags can make white pollution,which makes the environment worse and worse.,Whats m

9、ore,we should stop factories from producing harmful gases and water.,Then we appeal to people to take a bus or bike to go to school or work so as to reduce using private cars which cause air pollution.,Finally,it is good for us to care about plants.The more plants we have,the better the environment

10、will become.,To begin with,we should not throw any rubbish here and there.Instead,we should pick it up.Besides,we are supposed to ban the abuse of plastic bags.Plastic bags can make white pollution,which makes the environment worse and worse.Whats more,we should stop factories from producing harmful

11、 gases and water.Then we appeal to people to take a bus or bike to go to school or work so as to reduce using private cars which cause air pollution.Finally,it is good for us to care about plants.The more plants we have,the better the environment will become.,Lets protect our environment together!,H

12、omework,Preview Using language.,Debate,A,B,A:We shall do something about global warming.,B:We shall do nothing about global warming.,Quiz,1.Have you _ some new ideas?Yeah.Ill tell you later.2007 江苏 A.come about B.come into C.come up with D.come out with2.Please tell me how the accident_.I am still i

13、n the dark.(2005 江西)A.came by B.came out C.came to D.came about3.The accident _ the death of two passengers.A.resulted from B.resulted in C.resulted of D.resulted with,I.Choose the proper answer.,4.It is the protection for the trees _ really matters,rather than how many trees are planted.A.what B.th

14、at C./D.which5._ the people,not things,that are the most important.A.These are B.Those are C.It is D.It isnt,Although we are burning _ coal every year,we wont _ of it for centuries.2.If the amount of greenhouse gases continues to _,we could be facing a global catastrophe.,quantities of,II.Fill in th

15、e blanks using the phrases below.,compared to/with come about quantities of go up result in even if be opposed to build up run out,run out,go up,3.Many scientists believe that global warming has _ through the burning of fossil fuels.4.The washing machine uses too much energy,but _ we buy a more econ

16、omical one,it would still use too much water.,come about,even if,5.The car accident on the main road yesterday _ one drivers death.6._London,Paris is large.7.Sediment(沉淀物)_ on the ocean floor.,resulted in,Compared to/with,builds up,III.Translation,1._(是人类活动引起)this global warming rather than a random

17、 but natural phenomenon.2._ _(是一位名叫 Charles Keeling的科学家)made accurate measurements of the amount of carbon dioxide in the atmosphere from 1957 to 1997.,It is human activity that has caused,It was a scientist called Charles Keeling who,3.All scientists agree that _(正是燃烧越来越多)fossil fuels _(导致了)this increase in carbon dioxide.,it is the burning of more and more,that has resulted in,