课件19张PPT。Teaching PresentationPart 1. Analysis of the teaching Material
1). Status and fun_ction
2). Teaching aims and demands
3). Teaching key points
4). Teaching difficulties
5). Teaching aids
Part 2. Teaching methods
Part 3. Teaching procedure
Part 4. Blackboard DesignPart 1. Analysis of the teaching Material
1). Status and fun_ction＊ an article from an environmental magazine for
young people.
＊ it is an important carrier of new knowledge,
language and grammar.
＊ the students can learn useful expressions as
well as knowledge about greenhouse effect and
global warming.
2). Teaching aims and demands
Knowledge objects:
a. To learn some new words related to the topic.
b. To learn about some fact and views about global warming
c. Enable the students to learn the features of an English magazine article Ability object:
a. By skimming and scanning the passage, the students’ reading ability will be improved.
b. By talking about global warming, the students’ speaking skills will be improved.
Moral objects:
a. Arise the students’ love of the earth
b. Enhance their awareness of global warming and environmental protection. 3). Teaching key point
Enable the students to learn about global warming and to develop their reading ability.
4). Teaching difficulty
Help the students learn how to debate over the topic “We should do nothing about global warming.”5). Teaching aids
multi-media computer;
resources on the internet:
(eg.california Energy commission:
Http://www.energyquest.ca.gov)Part 2. Teaching methods
Communicative approach
Task-based learning
Whole Language teaching .Part 3. Teaching procedure
Step 1: Lead-in 3’’
Show the students a short video ask them some questions.What happened to the glaciers and why? Step2.Pre-reading 5”
1)Show a picture of greenhouse on the screen.What is a greenhouse made of and used for?
How does it work?2) the features of an English magazine article.Step3.While reading 20’’
1) skimming (Individual work)
Task: Skim the title and the first paragraph and answer the following questions.
Question 1: Who wrote the magazine article?
Question 2: What is the topic(主题) of the article?2)Scanning for detailed information (Group work)
Task: Find answers to the following questions.
Question 1.What are the names of the three scientists mentioned in the article?
Question 2.What are the two graphs about?
Question 3. What is global warming? What has caused global warming? (Para.2)
Sub-question(子问题):What human activity is mentioned in the article? (Para.3)????????????
Question 4.What phenomenon (现象) is called greenhouse effect? (Para3)
Sub-question(子问题): Without greenhouse effect, what would happen?5.What are the attitudes of scientists towards global warming? (Pa.6)3)Comprehending:
True or False question:P27 Ex 2
SummaryStep4. Post reading 8’’
Discuss the question in groups of four: Should we do something about the global warming? You may use some arguments from the article.Step5. Summary and homework 4’’
1. Read the text fluently
2.finish 2exercise on workbook to review the language.
3.Prepare a report about what individuals can do about global .??Part 5: Blackboard designThank you!课件21张PPT。Unit 4 Global warmingThe earth is becoming
warmer--but does it
matter? 一、说教材学情
教材分析：Material
本篇文章从体裁角度来看是一篇关于全球变暖的说明性的文章，从
内容上主要讲述了全球变暖现象，变化幅度，原因，探究这种变化
可能带给影响，以及我们该不该让这种现象持续。总体上属于学生
比较熟悉的话题，学生具有一定的背景知识。另外从词汇角度本篇
文章呈现了较多的关于原因，数据变化，赞同反对态度的一些重要
表达方式，这些也是本文的最大亮点所在 。
学生情况：students
整体上这篇文章在高三讲解，本人所教的学生英语素质较好，以前
他们曾经做过多篇阅读文章与此相似，也练习过原因探究类作文，
正反态度对比类的作文，因此在适当铺垫的情况下，学生因该可以
比较顺利和高质量的完成这篇阅读文章。 二、目标 方法
1.Knowledge goals（知识目标）
1）Some words and expressions including subscribe to, be opposed to etc
2）Some sentence Patterns
It is human activities that……
2.Ability goals（能力目标）
1）Enable students to grasp expositive better including its outline.
2）Enable students to express agreements and disagreements and give supporting reasons
3)Enable students to find and analyze information better.
3.Emotional goals（情感目标）
Enable students to have a right attitude towards greenhouse gases
4.Strategy goals（策略目标）
cognitive and adjustment strategies
方法：
Skimming and scanning 方法: Skimming Scanning discussion
教学重难点
重点：the style agreements and disagreements
难点： agreements and disagreements 教学过程 teaching procedures
Step 1: Lead- in
Greenhouse
How does a greenhouse work?
Greenhouse effect
Aim: simple and practical beginning provides some background information for the text. Questions are presented in different levels.
www.themegallery.comPicture readingA greenhouse
is made of _______ and is used for growing ________, especially during _____ weather.What is a greenhouse made of and used for?glassplantscoldwww.themegallery.comThe air inside is warm because the glass ______ the heat from the sun and keeps it from _________. This makes the greenhouse __________ and so the plants can grow _______________.trapsescapingheat upthroughout the cold periodHow does a greenhouse work?Step 2: Reading
Task1: the main idea of each part
Task2: some detailed and important questions
Task 3: some detailed and important questions
Task4: Appreciate some sentences
Task5: A summary or retelling
Levels of tasks: questions of presentation
questions of reference
questions of assessment
展示,参阅,评估性问题
Task1: the main idea of each partPart 1 (para1)Part 2
(para 2—5)Part 3（Para 6)
Part4 (para 7)D. It is up to readers to decide whether they should stop global warming or notB. state how global warming comes about A. introduce the issue
of global warmingC. list two different attitudes towards global warmingTask 2: SkimmingThis article is from ________.
a magazine
the internet
a book Step 3 ScanningPart 1 (Para 1)(1).Who wrote the magazine article?
(2).What is the name of the magazine?Earth Care.Sophie ArmstrongTask3 :Scanning1.How has the global warming come about?
It is ______ ______ that has caused this global warming.human activity
Paragraph 2The increase in the earth's temperature is due to the burning of fossil fuel like coal,natural gas and oil to produce energy.Paragraph .3.
Why does the earth's temperature increase?Paragraph.3.
What do you think of greenhouse gases?
1)Need
2)Not cause the sea level to rise
severe storms
droughts
famines
the spread of diseases
disappearance of speciesPositive effects Negative effects make plants grow faster
crops will produce more
a greater range of animals
make life betterThe author probably agrees that___.
actually global warming is good for human.
catastrophes will happen eventually due to global warming.
a lot remains to be found out about the effects of global warming
Task 3:ScanningParagraph 7Task 4:Appreciate sentences
1. It is human activity that….
2.All scientist subscribe to the view that….
3.The most important of which is…
4.It means that….tends to be trapped…causing…
5.It is the burning…that resulted in this increase
6. On the one hand on the other hand
7.Who are opposed to the view.
8.It will encourage a greater range of…. There is no doubt that the earth is ___________ and that ____human activity that has caused this global warming _________a random but natural
phenomenon.
All scientists ________ to the view that the increase in the earth’s temperature is _____ the burning of fossil ____. They also agree that it is the burning of more fossil fuels that has __________ this increase in carbon dioxide.
However, the attitude of scientists towards the rise is completely _______. Some think it could be very ______. But others are _______to this view. They think that more carbon dioxide is actually a _______thing. It will make life for human beings better.subscribedue tofuelsresulted indifferentseriousopposedpositiverather than it is becoming warmerTask 5: Summary There is no doubt that the earth is becoming warmer. In your opinion, does it matter?
If it does, as a student, what should you do?Step3:DiscussionStep 5:Homework Write a composition
Should cellphones be banned in schools?
1.一些学生同意这个观点及理由
2.另外一些学生反对这个观点及理由
3.你的观点及理由Step 5:Design of blackboard writing Expository essay sentence patterns
1.A question 1. It is…that..
2.Reasons 2.subscribe to the view that
3.Different attitudes 3.The most important of which is…
4.Conclusion 4.tends to be trapped…causing…
5. are opposed to the view
6.encourage a greater range of
……Step 5: Reflection(反思)1.The analysis of the text.
2. Interaction
3. the use of the phrases and sentences
4.students’ cognitive strategy.
