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1、1Book 6 Unit 4 Global WarmingThe Second Period Reading广西南宁市南宁外国语学校林万春Teaching goals 教学目标教学目标1.Target language目标语言目标语言a.重点词汇和短语compare,phenomenon,graph,fuel,trap,data,climate,catastrophe,consequence,range,per,glance,compare to,come about,fierce debate,result in,build upb.重点句式There is no doubt that th
2、e earth is becoming warmer.P26Without thegreenhouse effect,the earth would be about thirty-three degrees Celsius cooler than it is.P26They also agree that it is the burning of more and more fossil fuels that has resulted in this increase in carbon dioxide.P262.Ability goals 能力目标能力目标Enable the studen
3、ts to talk about the causes and effects of global warming.3.Learning ability goals 学能目标学能目标Help the students learn how to talk about the causes and effects of global warming and express ideas about what people shoulddo about it.Teaching important points 教学重点Help the students learn how to debate over
4、 the topic“We should do nothing about global warming.”Teaching difficult points 教学难点教学难点Enable the students to learn the writing skills of the text and get a better understanding of articles of this kind.Step 1.Read the text carefully and fill in the blanks.ScientistsOpinionJaniceFoster We need _ li
5、ke carbon dioxide,methane and water vapour,but if we add huge _extra carbon dioxide to the atmosphere by burning fossil fuels,it will cause the _togo up.ScientistsOpinionJaniceFoster Over the next 100 years the amount of warming could be as low as 1 to 1.5 degrees Celsius,but itcould be as high as 5
6、 degrees Celsius.An increase of five degrees would be a _.ScientistsOpinionsGeorgeHambley Believes that we shouldnt worry about _ of carbon dioxide in the air.Predicts that any warming will be mild with few bad environmental _._ that more carbon dioxide is actually a _ thing,which will make life for
7、 humanbeings better.Step 2.Choosing the best answer.1.The first graph in the text is used to _.A.attract readers attentionB.introduce the topic of global warmingC.act as an exampleD.support the opinion and make it more convincing2.The author probably agrees that _.A.global warming is good for us2B.w
8、e can do nothing about global warmingC.catastrophes will happen if the globe keeps on warmingD.much remains to be found out about the effects of global warming3.What is the main idea of the sixth paragraph?A.Its up to readers to think and decide whether people should do something about global warmin
9、g or not.B.List two different attitudes among scientists towards global warming.C.Illustrate how global warming comes about.D.Introduce a debate over the issue of global warming.Step 3.True or False.1.The temperature in the last century did not seem to increase much.()2.Everyone believes that global
10、 warming is caused by the activities of humans.()3.Janice Foster believes that she can measure the future global rise in temperature.()4.The rise in carbon dioxide is causing a steady increase in global warming.()5.George Hambley believes that global warming will do good rather than harm to the eart
11、h.()6.It is clear what the effects of global warming will be.()Step 4.Debating.Get the students to debate over the statement:We should do nothing about global warming.Let them work in groups of six toprepare it.T:Now you are going to have a debate:We should do nothing about global warming.Please fol
12、low these instructions.Put the following instructions on the screen.Get into groups of six.Decide which three in your group are going to agree with the statement(Group A)and which threeare going to disagree with the statement(Group B).GroupAdiscuss why they agree with the statement;Group B discuss w
13、hy they disagree.GroupAand B get together.Tell each other the reasons why agree or disagree with the statement.T:We dont have time to do it in class.Please finish it after class.Try to collect as much information as possible on theInternet and share it with the others in class.Next class Ill get some groups to act out your debates.Step 5.Homework.1.Read the passage again and review the new words and expressions.2.Prepare the debate in groups.3.Preview Using Language WHATCAN WE DO ABOUT GLOBALWARMING？