人教版高中英语选修六unit4globalwarming-reading教学课件
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Para.1
A. the cause of the earth's becoming warmer
Para.2
B.the consequence of burning fossil fuels
Para.3
C.the increase of carbon dioxide
Para.4
D.global warming will go on
Charles Keeling. F
Paragraph6 Different attitudes towards global warming
Dr.Foster: It would lead to a catastrophe.
the climate could be very serious a rise of several metres in the sea level severe storms,floods,droughts,famines,the spread of diseases,the disappearance of species
Writing
Write down the advantage or disadvange of global warming in your opinion.
Homework
Surf the Internet for more information about global warming.
Combined with Paragraph4 and Paragraph5, judge T or F.
1.The carbon dioxide content in the air increased
by 70 parts per million from 1957 to 1997. F
2. All scientists accept the data in graph 2 except
Listen to paragraph3 and then discuss questions in group to choose right answer.
1. Greenhouse gases refer to __C__. A. carbon dioxide B. the burning of fossil fuels C. byproducts of the burning of fossil fuels D. coal, natural gas and oil
Para.5
E.puzzles about global warming
Para.6
F.different attitudes to global warming
Para.7
G.an introduction to the passsage
Paragraph1 and
paragraph2
What is this graph about? What has caused this phenomenon? It shows the temperature increase of one degree Farenheit between 1860 to 2000. Human activity.
Which of the following picture is not “greenhouse gases”?
Which of the following picture is non-renewable energy?
Match: the main idea of each paragraph.
高中英语课件
（金戈铁骑 整理制作）
Reading:
The Earth Is Becoming Warmer-But Does It Matter?
Which of the following picture doesn't show the phenomenon of global warming?
1. If we start reducing the amount of carbon
dioxide and other greenhouse gases, is the climate going to stop?
2. What's the attitude of the author? Positive?Negative or Neutral?
George Hambly: We should not worry about it.
make plants grow quicker crops will produce more encourage a greater range of animals
Paragraph7 Answer questions.
人教版英语选修六Unit 4 Global Warming(Reading)课件(共21张PPT)
Greenhouse effect
Careful reading
Task Two
Read para.6-7 carefully and answer the following questions.
1. What is Dr. Foster’s opinion about global warming? 2.What is Hambley’s opinion about global warming?
Careful reading
Task One
Read para.2-5 carefully and answer the following questions.
1.What are the two graphs about? 2.What is the cause of global warming? 3. What in the atmosphere traps the heat from the sun and warms the earth?
Much brighter than tomorrow And if you really try
You’ll find there’s no need to cry In this place you’ll feel
There’s no hurt or sorrow
Careful reading
1.What are the two graphs about?
Graph 1 shows the temperature increase of one degree Fahrenheit between 1860 to 2000.
Careful reading
1.What are the two graphs about?
人教版高中英语选修6 Unit4 Global Warming reading 教学设计
Unit 4 Globbal Warming(Reading)
The Earth is Becoming Warming---Does it Matter教学设计
教学分析
教学设计说明
1、学习者分析
学习动向：有强烈的求知欲和学习动机。
对全球变暖现象有着强烈的好奇和了解欲望。
语言水平：对知识的记忆和理解不存在问题，有较好地运用英语进行分析问题的能力，对自己的学习行为能作出较客观地评价。
学习风格：性格差异，学习风格各不相同，但都有自主、合作、探究的学习意识和能力，对学习行为具备一定的自我监控能力。
电脑知识：具备一定的电脑操作知识和网上查阅能力，这为完成课后作业提供技术保障。
2、策略设计
资源策略设计：①有效的利用多媒体课件辅助课堂教学活动，丰富教学内容，提高学生的学习兴趣和课堂教学效率，充分体现现代化教学
技术的优点。
②通过教师与同学等人力资源及图书馆、网络等非人力资源
查找有关全球变暖的资料，从而开拓视野，形成开放的文化
态度。
3、教学方法设计：
主要采用任务型教学法、学生中心教学法和多媒体教学法。
学生强烈的好奇心，在可操作的真实有效任务的驱动下，让学生在任务完成过程中充分认识到人类在生存过程中如何科学地改造自然来减少对全球变暖的影响及体验合作学习的成就感。
4、教学设备：
多媒体设备。
高中英语(人教版)选修六 Unit 4 Global warming-Reading 教案
Unit4. The Earth Is Becoming Warmer-But Does it Matter 教案Teaching Aims:1.Improve the students’ reading ability2.Having concept of “greenhouse gases”,”greenhouse effect””global warming”3.Know scientists’ attitude towards “global warming”4.Can write down the advantages as well as disadvantages of “global warming” and can express them to the whole classTeaching Important and Difficult Points:1.How to Improve the students’ reading ability2.How to guide students to write and to express his or her attitude in own wordsEmotional Aims:Enable the students to know the importance of protecting earthMedia preparation:Blackboards, PPT, video player, Mp3 playerTeaching Process:Step1. GreetingsGreet the whole classStep2. Lead-inShow three groups of pictures, which are about shallow understanding of “global warming”, and let them choose the right picture of each group.eg.Which of the following picture doesn’t show the phenomenon?Step3. Fast-ReadingMatch: the main idea of each paragraph. (Divided them into seven groups,each group answer one paragraph.)Step4. Intensive Reading1)Analyze paragraph1 and paragraph2 in a way of graph1. Answer two questions.What is this graph about? What has caused this phenomenon?2) Listen to paragraph3 and then discuss questions in group to choose right answer.Greenhouse gases refer to ____.A. carbon dioxideB. the burning of fossil fuelsC. byproducts of the burning of fossil fuelsD. coal, natural gas and oilGreenhouse effect ____.A. is a natural phenomenonB. happens when there’s too much carbon dioxideC. does great harm to human beingsD. makes life for human beings betterSummarize this paragraph in a way of simple drawing.3)Give a graph2, ask one student to analyze the graph2 as the way of graph1. Then combined with Paragraph4 and Paragraph5, judge T or F. The carbon dioxide content in the air increased by 70 parts per million from 1957 to 1997.All scientists accept the data in graph 2 except Charles Keeling.4)Read paragraph6 together and summarize the different attitudes towards global warming.Dr.Foster: It would lead to a catastrophe.George Hambly: We should not worry about it.5)Read paragraph7 independently and answer questions.If we start reducing the amount of carbon dioxide and other greenhouse gases, is the climate going to stop?What's the attitude of the author? Positive?Negative or Neutral?6)Summarize the structure of the whole passagePart1 (paragraph1)Part2 (Paragraph2-5)Part3 (Paragraph6)Part4 (Paragraph7)Step 5 WritingWrite down the advantage or disadvantage of global warming in your opinion.Step 6 Play a video to express my view.Step7 HomeworkSurf the Internet for more informationabout global warming.Teaching ReflectGlobal Warming is one of the most important topic we face in this century. Teacher should guide students to focus this topic and do activities to protect our earth.。
Globalwarming-Reading教案(新人教版高中英语选修6unit4)
Global warming-Reading教案(新人教版高中英语选修6 unit 4) Pre-reading1. Questioning and answeringAsk students something about a green house. What is it? What is it for? Could you tell the class in English what you know about a green house?A green house is built of glass to be used for growing plants. The air inside the green house is warm because the glass lets in the sun and keeps it from running away. So the air inside is warm and is good for growing plants throughout the cold seasons.2. Introduces students to the topic of the reading passage and the term “greenhouse gases”.3. Do exercises⑴What is the building made of and what its purpose?⑵What’s greenhouse effect?Teaching aims:To read the text “The earth is becoming warmer—but does it matter” and understand what it says.To make students find out some useful words and expressions. Teaching procedures:Step 1. Read the text (Page26)Answer the following questions.1 what is the purpose of the first paragraph?To introduce the topic.2 what are the diagrams for?To illustrate points by providing evidence.3 what is the purpose of the last paragraph of the article?To reflect on the major theme of the text and to predict what might happen in the future.Step 2. Read again for more detailsTo understand the main idea of the text, we are going to read it once again. Write down the key sentence of each paragraph at the same time.Key sentence of each paragraph:A debate over whether it is human activity that has caused the global warming or whether it is just a natural phenomenon.Many scientists believe people have caused the increase in the earth’s temperature.The increased extra amount of carbon dioxide traps more heat energy causing the global temperature to go up.The levels of carbon dioxide have increased greatly over the last 100 to 150 years.There are some different attitudes towards the causes of this increasein carbon dioxide.Over the next 100 years the amount of warming could be as low as 1 to 1.5 degrees Celsius but it could be as much as 5 degrees Celsius. An increase of five degrees would be a catastrophe.Future warming would cause the sea level to rise by several meters. Some predict any warming will be mild with few bad environmental consequences.More carbon dioxide is a positive thing.No one knows what the effects of global warming will be.Step 3. Listen to the tape and then find out some useful words and expressions.。
【教案】人教版选修六Unit4 Global Warming Reading
【县级开放周教案】A Teaching Plan课题：人教版选修六Unit4 Global Warming Reading一. 教材内容分析本单元中心话题为“全球变暖”，旨在通过单元教学使学生学习、了解、思考全球变暖的起因和可能带来的后果，并针对该问题探讨可行性措施。
Reading局部说明了全球变暖的起因、后果以及人们对此的不同观点。
二. 学情分析学生语言根底不扎实，尤其是词汇的局限直接影响了对文章的理解，所以要求学生做好预习工作，减少语言障碍。
地球变暖在其他学科及日常生活中都已有所了解，是学生比拟熟悉的话题，但这是一篇杂志文章，语言比拟正式且复合句较多，对于根底较弱的学生来说有一定的难度。
所以强调学生要有互相合作互相监督和互相学习，从而促进互相进步。
三. 教学设计思路Leading in — fast reading -- scanning — deep reading — discussion — summary四. 教学目标：1.语言技能Learn to express the cause and the effects of global warming.2.文化意识Raise the awareness of environmental protection.3 .思维品质Students can cultivate independent thinking ability with the guidance of the teacher.4.学习能力Encourage students to use different reading skills such as skimming etc. to get information needed to solve problems.Encourage students to use the information they get when reading to finish different tasks to develop different abilities.五. 教学重难点重点Help the students learn the cause and effects of global warming.难点How to guide the students to understand global warming better and collect specific details to voice their own views in a critical way.六. 教学方法Task-based Language Teaching Approach七. 教学策略充分利用多媒体辅助教学，发挥信息技术的作用，丰富教学内容，提高学生的学习兴趣和课堂教学效率。
高中英语(人教版)选修六 Unit 4 Global warming-Reading教案
Teaching PlanUnit 4 Global warmingReading: The earth is becoming warmer—but does it matter?Ⅰ Teaching Aims1.Enable the students to learn the following useful new words and expressions：fossil fuel, go up, come about, flood, drought, famine etc.by pictures.2. Enable students to master the reading skills by skimming, scanning.3. Enable students to get the knowledge of global warming through the reading strategies and skills.II Teaching Important and Difficult PointsEnable the students to get information about global warming using the reading strategies and skills.III Emotion, attitude and valueEnable the students to be more aware of the importance of stopping global warming Teaching Methods：Asking-and-answering activity to check the students’ understanding of the text；individual，pair or group work to finish each task.Teaching Aids：A multimedia computer and a blackboard.Teaching ProceduresStep 1 Lead-in1) Greetings and lead in.Show a film of The Day After Tomorrow and ask them the following question:What can you see in the film?--hurricane, tsunami, glacier melting .What other disasters do you know？--Flood, drought, famine.What causes the disasters?--It’s the global warming.What causes the the global warming?--Picture1: the burning of fossil fuelsPicture2: greenhouse gases: carbon dioxide, water vapor, methaneAs a result, the earth will become warmer and warmer.Step2. Skimming:Glance the first paragraph:1. Who wrote the magazine article?A. Janice FosterB. Sophie Armstrong2. What is the topic of the article?A. The earthB. Global warming3. There are the names of the three scientistsin the article EXCEPT______.A.Dr Janice FosterB. Sophie ArmstrongC. Charles KeelingD. George HambleyStep3 Scanning for detailed information (Group work)Part2(2-5)1. What do the two graphs show?--The first graph shows the temperature increase of one degree Fahrenheit between 1860 to 2000.--The second graph shows carbon dioxide went up from 1957 to 19972. What do you know about greenhouse effect?Greenhouse gases trap(吸收) the _heat_from the sun and therefore _warm_the earth. 3. Which following is NOT TRUE about global warming? (D)A. The increase of temperature is due of the burning of the fossil fuels.B. The burning of the fossil fuels caused the increase in carbon dioxide.C. All believes that activities of humans have caused global warming.D. The attitudes of scientists toward it are the same.3.The different ideas of the effects of the global warming Part3(6)Step4 SummaryWhat can we learn from the text? Fill in the bland.A. fossil fuelsB. human activityC.warmerD.differentE. heatEveryone believes that the earth is becoming ______. _______________ has caused this global warming: human produce energy by burning ___________. During this process, greenhouse gases are produced. Greenhouse gases can trap _____ from the sun and warm the earth which is called “greenhouse effect ”.The attitudes of scientists towards global warming are ______. On the one hand, it is a positive thing. On the other hand, if there are too many greenhouse gases, more heat will be trapped, causing global warming.Step5 After-reading group workWhat should we do to stop global warming?Discussion:Suggestions on global warming:turn off the electrical applianceDr. Foster Hambley More carbon dioxide has negative effects: rise of the sea level severestorms, droughts, floods, famines, the spread of diseases, the disappearance of species. More carbon dioxide is a _positive_ thing, makes crops __produce__ more and will encourage __a great range of animals____.talk with family and friends about itrecycle things like bottles, plasticsplant more treesride bike rather than carwords 参考词汇: reduce, carbon dioxide, absorb, environment, plant, electrical appliances, recycleSentences structures 句型:We should ... in order to ...moIt is a good idea to ... because it can ...e.g. We should plant more trees in order to absorb the carbon dioxide .It is a good idea to plant more trees because it can absorb the carbon dioxide .Suggestions about global warmingNowadays, global warming is becoming warmer and warmer. It's time for us to take some actions to deal with it.Firstly, we should ________________________________________ in order to _______________________________________.Secondly, it's a good idea to _______________________________________ because _______________________________________.Finally, why not ______________________ because________________________.Let us save energy and stop the global warming together.Step6 HomeworkWrite a short passage about the suggestions.。
Globalwarming--Reading教案(新人教版选修6Unit4)
Global warming--Reading教案（新人教版选修6Unit 4）Teaching goalsTarget languagewords and phrases:energy, light(v.), heat(v.), renewable, non-renewable, run out, compare, phenomenon, graph, fuel, trap, data, climate, catastrophe, consequence, range, per, glance, compare to, come about, fierce debate, result in, build up, keep onAbility goalsEnable the students to talk about different sources of energy. Enable the students to read the text, understand what it is about and talk about the causes and effects of global warming.Teaching important & difficult pointsEnable the students to get a better understanding of articles of this kind.Teaching aidsA projector and a blackboardTeaching proceduresStep 1 Warming upT：Now let’s look at a picture on the slide and answer the question below.What is the greenhouse made and used for?A greenhouse is made of glass and is used for growing plants, especially during cold weather.What’s greenhouse effect?Step 2 ScanningRead the text quickly and find the answer to the questions:1. Who wrote the magazine article? What is the name of the magazine?Sophie Armstrong, Earth Care.2. What are the names of the three scientists mentioned in the article?Dr Janice Foster, Charles Keeling, George Hambley.3. What do they think about global warming? Do they agree with one another?They don't agree with each other.Dr. Janice Foster thinks the effects of global warming could be very serious.George Hambley thinks global warming will be mild with few bad environmentalconsequences.Charles Keeling believes it is the burning of more and more fossil fuels that is resulting in a bigincrease in carbon dioxide.The first graph shows the temperature increase of one degree Fahrenheit between 1860to 2000.The second graph shows the carbon dioxide content in the atmosphere from 1957 to 1977.4. What are the two graphs about?The first graph shows the temperature increase of one degree Fahrenheit between 1860to 2000. The second graph shows the carbon dioxide content in the atmosphere from 1957 to 1977.5. What is the main topic of the article?Global warming/ the warming of the earth.Step 3 SkimmingRead the passage carefully and judge whether the statements are true or false.1. The temperature last century didn’t increase much.2. Everyone believes that global warming is caused by the activities of humans.3. Janice Foster believes that global warming is caused b the burning fossil fuels.4. Natural gas is a greenhouse gas.5. Carbon dioxide is a byproduct of burning fossil fuels.6. People accept Charles Keeling’s data because he took accurate measurements.7. Flooding could be one of the effects of future global warming.8. George Hambley believes scientists are just guessing about the effects of globalwarming.9. George Hambley is worried about the effects of carbon dioxide on plant growth.10. It is clear what the effects of global warming will be.Keys: True: 3, 5, 6, 7, and 8 False: 1, 2, 4, 9, 10Step 4 Detailed readingRead the text carefully and try to find out how many parts we can divide the text into and find out the main idea of each part.Step 5 DebateGet into groups of six. Decide which three in your group are going to agree with the statement and which three are going to disagree with the statement.Group A: We shall do something about global warming.Group B: We shall do nothing about global warming.Group A discuss why they agree with the statement; Group B discuss why they disagree.Group A and B get together. Tell each other the reasons why agree or disagree with the statement.Step 6 Homework1. Read the passage again and review the new words and expressions.2. Prepare the debate in groups.3. Surf the Internet for more information about global warming。
新人教选修六-Unit-4-Global-warming单元教学设计
目标
〔一〕知识目标
Tograsp someuseful words and expressionsandlearn some useful sentence patterns
〔二〕能力目标
1.Get students to use someuseful words and expressions correctly .
Step 2 listening
Play the tape for students and pay attention to some important words and phrases
Listen to the tape and pay attention to some important words and phrases
2.Everyone believes that global warming is caused by the activity of humans.
3.Janice Foster believes that she can measure the future global rise in temperature.
Step 3languagepoints
Go through the passage and deal with anylanguage points
Learn the useful languagepoints
Step 4Practice
Ask students to do some practice
2. Develop students’sense of group cooperation
教学
方法
1.Task–based teaching and learning
人教版高中英语选修6 Unit4 Global warming reading 教学设计
人教版高中英语选修6 Unit4 Global warming reading 教学设计单元要览：本单元的中心话题是人类当今面临的环境问题，主要探讨了“全球变暖”和“节约能源”等方面的问题。
由于人类过多使用不可再生能源，大气中二氧化碳的含量逐年增加，导致全球气温上升。
通过学习本单元，让学生了解能源分为“不可再生能源”和“可再生能源”，帮助学生树立“节约能源、保护环境”的主人翁意识。
学情分析：教学对象为高中二年级学生，智力发展趋于成熟。
他们的认知能力比初中阶段有了进一步的发展，渐渐形成用英语获取信息、处理信息、分析问题和解决问题的能力，因此我特别注重提高学生用英语进行思维和表达的能力。
他们学习英语方法由死记硬背转型向理解型并应用到交际上，他们有自己的学习技能和策略，学会把语言学习与现实生活和兴趣联系起来。
通过任务型课堂活动和学习，学生的学习自主性得到加强，不再认为英语的课堂学习很枯燥，主动参与到活动中去，成为课堂的主体，同时也加强了与他人交流合作的能力。
不过，本班学生的水平参差不齐，有些差距还相当大。
因此在教学过程中，布置的任务要兼顾各个层次的学生，使他们都有所收获。
教学内容分析：The central part of this unit is the reading passage with the title of “The Earth Is Becoming Warmer—But Does It Matter？” talking about the global issue which has a great effect on human beings' life.Warming Up gives six pictures to help students list the sources of energy they can think of in our daily life.Then they will be led to discuss which energy source is “renewable” andwhich is “non－renewable”．This part is designed to help the students to recall their background knowledge about energy and prepares students for the whole unit.Pre－reading provides a picture of a greenhouse and then tells us what a greenhouse is and what “greenhouse gases” are.The students will be led to discuss what they think greenhouse gases do，leading to the topic of the reading passage.Reading is a passage from an environmental magazine for young people.It puts forward the possible effect of increased carbon dioxide in the atmosphere and different points of view about it.It also analyzes the causes of the earth's increased temperature.It poses questions and encourages students to think about the issues.There are two graphs in it that tell us the “temperature difference from long－term average,1860－2000” and “carbon dioxide content in the atmosphere,1957－1997”．Characters in the passage—Dr Janice Foster，George Hambley and Charles Keeling are all real persons and their views reflect the views of some scientists today.Comprehending consists of three written or oral exercises for the students to do so as to help the students to get a betterunderstanding of the text，that is to say，to help the teacher to check how much the students have understood the text.教学目标设计Knowledge and skills1．To know the meanings of the following new words and phrases：consume(消费；消耗；耗尽)，come about(发生；造成)，random(胡乱的；任意的)，phenomenon(现象)，subscribe(同意；捐赠；订阅；签署文件)，subscribe to(同意；赞成；订购)，fuel(燃料)，quantity(量；数量)，quantities of (大量的)，tend(趋向；易于；照顾)，go up(上升；增长；升起)，per(每；每一)，data(资料；数据)，result in(导致)，trend(趋势；倾向)，catastrophe(大灾难；浩劫)，flood(洪水；洪灾)，oppose(反对；反抗)，opposed(反对的；对立的)，be opposed to(反对)，consequence(结果；后果)，state(陈述；说明)，range(种类；范围)，even if(即使)，keep on(继续)，glance(看一下；扫视)，steady(平稳的；持续的)，steadily(平稳地，持续地)2.To learn about some facts and views about global warming. 3．To learn how the information is organized.4．To develop the students' reading ability by skimming and scanning the passage. 5．To develop the students' speaking ability by talking about global warming.教学方法:1．While doing Warming Up the teacher can lead in the topic of this unit by showing students some pictures or videos about sources of energy，making the students recall their own knowledge about energy.2．During Pre－reading the teacher can go around the classroom and discuss the questions with severalstudents.This discussion should be student－centered and lead them to the topic of global warming.The teacher should also ask the students to look at the graphs in the reading passage and try to find out the general idea of the text.3．While doing Reading and Comprehending，the teacher may first ask the students to read the text quickly to get the general idea of each paragraph.After reading the passage，students are encouraged to answer some questions and discuss the text structure.4．To consolidate the contents of the reading passage，the students should be required to retell the text in their own words at the end of the class.教学情感目标:1．To make students realize the harm of global warming and the importance of environmental protection.2．To develop students' sense of cooperative learning.教学重、难点:1．To enable the students to learn about global warming and to develop their reading ability.2．To enable the students to talk about what we should do to prevent global warming.教学过程：Step 1 Warming up1．Warming up by reading and talking：Read through the exercise with the class.Put students in groups of four to talk about what we use energy for，what are the sources of these energy and whether the sources are renewable or non－renewable.Suggested answer：The six photos are：windmills；a coal power station；an oil refinery；a nuclear power plant；solar panels；a hydro－electric dam.2．Warming up by discussion：Let the students have a discussion and collect suggestions fromstudents and write them under the appropriate heading.Show a picture of a greenhouse to students and ask them what agreenhouse is made of and what its purpose is.Suggested answer：It's made of glass and plants can grow in it when it's cold outside.Ask the students how it works.Suggested answer：The glass traps the heat from the sun，making the air warm so that plants grow better.Step2．Pre-readingAsk students what they think “greenhouse gases” are and what they think greenhouse gases do.Look at the picture above and explain it to their partners.Suggested answer：Greenhouse gases perform the same function as the glass in a glasshouse：they trap the heat of the sun and keep the air surrounding the earth warm.This is called the greenhouse effect.)Step.3 Reading and comprehending1．Fast readingAsk students to read the passage quickly so as to get the key words and general idea of each paragraph and answer the following questions：(1)What is the main topic of the article?_________________________________________________________________ (2)Who wrote the magazine article？What is the name of the magazine?_________________________________________________________________ (3)What are the names of the three scientists mentioned in the article？Do they agree with one another?_________________________________________________________________ Suggested answers：(1)Global warming/the warming of the earth.(2)Sophie Armstrong，Earth Care.(3)Dr Janice Foster，Charles Keeling，George Hambley.They don't agree with each other.2．Detailed reading(1)Read the passage carefully and judge whether the statements are true(T) or false(F)．①Janice Foster believes that global warming is caused by the burning fossil fuels.( )②Natural gas is a greenhouse gas.( )③Carbon dioxide is a byproduct of burning fossil fuels.( )④People accept Charles Keeling's data because he took accurate measurements.( )⑤Flooding could be one of the effects of future global warming.( )⑥George Hambley believes scientists are just guessing about the effects of global warming.( )⑦George Hambley is worried about the effects of carbon dioxide on plant growth.( )⑧It is clear what the effects of global warming will be.( ) (Suggested answers：TFTTTTFF)3．Structure analyzingAsk students to read the text carefully and try to find out how many parts they can divide theSuggested answer：Step 4 Language studyDealing with any language problem if any(words or sentences students might not understand)to help the students to have a better understanding of the text.Step 5 Listening，reading aloud and underliningAsk students to read the passage aloud to the tape and let them pay attention to the pronunciation of each word and the pauses within each sentence.Tell them to pick out all the useful expressions or collocations from the passage while reading and copy them to the notebook after class as homework.Collocations：come about，There is no doubt that...，subscribe to，due to，greenhouse effect，quantities of，tend to，be trapped in，go up，result in，on the one hand...on the other hand，be opposed to，build up，keep on.Step 6 RetellingAsk students to talk about global warming in their own words.Give them some key words and expressions on the blackboard.Then let them try to retell the passage.Step 7 Homework1．Learn the useful new words and expressions in this part by heart.2．Try to find some data about global warming on the Internet，and show your class in the next period and talk about them. Step 8 Reflection after teaching。
人教版新课标高二英语选修六+unit+4+Global+warming教案
Unit 4 Global warming ----ReadingI.Revisionin consequence/come about/ be opposed to/ go up/ result in/ a large quantity of1) With the use of electricity, great changes have ¬¬¬¬___________ in our life.2) The police found _____________drugs at his home.3)At first they _____________the scheme,but we managed to argue them round.4) The price of oil has _______________by over 50 percent in less than a year.5) It rained yesterday and _____________the match was canceled.6) The fierce quarrel both sides’ breaking up from each other. II.Reading tasks:1) Read the text and then match the main idea of each part.Part 1(Paragraph 1) a.List two different attitudes among scientists towardsglobal warmingPart 2(Paragraphs 2~5) b.It`s up to readers to think and decide whether people should do something about global warming or not. Part 3(Paragraph 6) c. Illustrate how global warming comes about. Part 4(Paragraph 7) d. Introduce a debate over the issue of globalwarming.2)Try to find out the main idea of the text.The ______have different ideas on whether it _______ when the earth is becoming _______.3)Read the passage and answer the following questions.1.What does the `green house effect` refer to?2.What has resulted the increase in carbon dioxide?3. Who wrote the magazine article? What is the name of the magazine?4. What are the names of the three scientists mentioned?5. Do the scientists agree with one another about the global warming?6.The different ideas between Dr. Janice Foster & George Hambley Dr. Janice Foster----Carbon dioxide has caused the global temperature to _____.An increase of five degrees would be a________and could be______.George Hambley----More carbon dioxide is a _____thing,which makes crops_______and will encourage_______.4)SummaryAll scientists 1.________ to the view that it is human activity that has caused the global warming.This activity is burning fossil fuels，to produce energy .As a result, a natural 2.__________called the“greenhouse effect” has 3.____________.Without this phenomenon，the earth would be about 4._______cooler than it is.So,we need those gases. However,the global temperature will rise when we add huge5.________of extra carbon dioxide into the atmosphere. We know that the levels of carbon dioxide have6._______ greatly over the last 100 to 150 years. The attitude of scientists towards this rise is completely7________ . Some think that the trend would be a catastrophe while some are 8.______ to this view，and they believe that any warming will be 9.____________ with few bad environmental 10.__________.eful sentences about protecting enviornment.1.Environmental protection has caused global concern recently.2.Everybody should raise the awareness that it’s our duty to protect our mother earth.3.It’s high time we took immediate measures to protect our earth from being polluted.4.On no account should we develop our economy at the cost of our environment.5.With the increase of the world population, our environment is getting worse and worseIV.HomeworkWrite a short passage using the topic about protecting environment.。