1、高考资源网（） 您身边的高考专家2014-2015学年高中英语（重庆）同步教案（3）：Unit 4 Global warming人教新课标选修6）The Third Period Extensive ReadingTeaching 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
2、long as, and so on b. 重点句式 P30Together, individuals can make a difference.It takes a lot of energy to make things from new materialsRemember 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
3、 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
4、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StepRevisionCheck 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 i
5、n 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 groups opinion.A sample debate: (A=Group A; B=Group B)A: We think people should do something about global warming. Because it
6、 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 t
7、he destruction of species. Dont you think these are terrible? So dont 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 dont think so. Some scientists concerns about global warming are just speculation
8、. 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. Whats more
9、, 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 theres no need for us to reduce the carbon dioxide.A: It is true that no one knows exactly what the
10、 effects of global warming will be. But dont 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 Lead-inT: Group A did a good job and showed us the importance of reducing the amount of carbon dioxide in the air. But
11、 what shall we do in our daily life?Sa: Save energy. For example, if we are not using the lights, the TV, the computer and so on, turnthem off.Sb: Cars use a lot of energy, so wed better walk or ride a bike. Sc: Buy things made from recycled materials because it takes a lot of energy to make things
12、from new materials.T: Right. Youve done a good job. Next open your books and turn to page 30. Today well read two letters and learn what we can do about global warming.Step Listening and ReadingGet the students to read the two letters and then fill in the table on page 30.T: Skim the letters and fin
13、d who the writers are and what their purpose of writing the letters is. Sd: The first letter is written by a student who is asking for suggestions for his project global warming.Se: The second letter is written by an editor of Earth Care magazine. He offers the student some suggestions on what to do
14、 about global warming. T: Good answers. Now scan the letter and list Earth Cares suggestions and then in groups, discuss whether you think you can carry out each suggestion. Give reasons for your answers.Sample answers:Earth CaressuggestionsCan you carry it out?ReasonsIf you are not using electrical
15、 appliances, turn them off.YesSave energyIf youre cold, put on more clothes instead of turning up the heat.YesSave energyMotor vehicles use a lot of energy, so walk or ride a bike if you can.YesSave energyRecycle cans, bottles, plastics and newspapers and buy things made from recycled materials.YesS
16、ave energyGet your parents or friends to buy products that are made to save energy.YesSave energyPlant more trees.YesPlants absorb carbon dioxide from the air.Talk with your family and friends about global warming and tell them what youve learned.YesTogether, individuals can make a difference.Step M
17、aking a posterHelp the students learn how to make a poster. The teacher may collect some posters or pictures about the environment and show them to the students in class. T: Now in groups of five, make a poster for your school that tells the students various ways they can reduce the amount of carbon
18、 dioxide in the air. Remember the following: give your poster a large heading, use imperative sentences to list the ways we can reduce the amount of carbon dioxide in the air. Whats more, try every possible way to make your poster impressive, which is the purpose of a poster. If time is limited, you can finish it after class.Step HomeworkFinish the poster.- 3 - 版权所有高考资源网