After a few minutes.
T: How many parts can this text be divided into?
T: Any different ideas? OK. Now let’s finish the form on the screen.
Show the form on the screen and let the students complete the form.
Main ideas of each part Step Ⅳ Comprehending
Let the students read the passage again to find out the answers to the questions in Exercises 1 and 2.
T: Now let’s listen to the tape. While listening, pay more attention to specific information. Then read the whole passage by yourselves. Try to find out the answers to questions in Exercises 1 and 2. You may work in groups. Step Ⅴ Debate
Get the students to debate over the statement: We should do nothing about global warming. Let them work in groups of six to prepare it.
Writing techniques T: Now you are going to have a debate: We should do nothing about global warming. Please follow 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 three are going to disagree with the statement (Group B).
● 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.
T: We don’t have time to do it in class. Please finish it after class. Try to collect as much information as possible on the Internet and share it with the others in class. Next class I’ll get some groups to act out your debates. Step Ⅵ Homework
1. Read the passage again and review the new words and expressions.
2. Prepare the debate in groups.
3. Preview Using Language ― WHAT CAN WE DO ABOUT GLOBAL WARMING？
The Third Period Extensive Reading Teaching goals 教学目标
1. Target language 目标语言 a. 重点词汇和短语
pollution, electrical, motor, can (n.), microwave, disagreement, title, make a difference, put up with, leave an electrical appliance on, so long as, and so on b. 重点句式 P30
Together, individuals can make a difference.
It takes a lot of energy to make things from new materials… Remember — your contribution counts. 2. Ability goals 能力目标
Get the students to realize what individuals can do about global warming.
3. Learning ability goals 学能目标
Learn what to do in daily life to reduce the carbon dioxide content in the air.
Teaching important points 教学重点
Enable the students to know what to do in daily life to reduce the carbon dioxide content in the air. Teaching difficult points 教学难点
Enable the students to learn how to make a poster. Teaching methods 教学方法 Listening, skimming and group work.
Teaching aids 教具准备 A recorder and a computer.
Teaching procedures & ways 教学过程与方式 StepⅠRevision
Check the students’ homework to see whether they have mastered what they learnt last class. Check their group work — debate.
T: Have you finished your homework — prepare a debate in groups? Ss: Yes.
T: Which groups would like to come to the front and act out your debates? Choose one as your representative. Ask a representative in each group to state their group’s opinion.
A sample debate: (A=Group A; B=Group B)
A: We think people should do something about global warming. Because it could have many negative effects on the earth. With temperature increasing, the polar ice caps eventually would melt, causing sea levels to rise by several meters. Coastal and low-lying cities would be submerged. Some scientists predict severe storms, droughts, famines, the spread of diseases and the destruction of species. Don’t you
think these are terrible? So don’t hesitate to take action to reduce the carbon dioxide content in the air. Only in this way will we be able to save the earth and save ourselves. B: We don’t think so. Some scientists’ concerns about global warming are just speculation. I want to remind everyone to pay attention to what Group A has just said. You said a lot of “could” and “would”, which obviously indicates that you are not sure about the bad effects you just mentioned. In our opinion, global warming will be mild with few bad environmental consequences. What’s more, more carbon dioxide is actually a positive thing. It will make plants grow faster; crops will produce more; it will make a greater range of animals, all of which will make life for humans better. So there’s no need for us to reduce the carbon dioxide.
A: It is true that no one knows exactly what the effects of global warming will be. But don’t you think it will be too late for us to take action after the bad effects come out? Hope for the best and prepare for the worst. B: ...
Step Ⅱ Lead-in
T: Group A did a good job and showed us the importance of reducing the amount of carbon dioxide in the air. But what
