人教高二英语选修-Unit--Global-warming-全单元教案

1、Unit 4 Global warming. 单元教学目标技能目标Skill GoalsTalk about global warming, pollution and the importance of protecting the earthPractise expressing agreement, disagreement, blame and complaintHow to use“it for emphasis in a sentenceWrite an essay on environmental problems. 目标语言功 能 句 式Expressing agreement

2、, disagreement, blame and complaintYes, I agree with you.Yes, I think so.I believe that youve got it right.I dont think so.I dont think thats right.Im afraid you are wrong.Im sorry to bring this up, but . Im sorry to have to say this, but .They shouldnt have done it.They are to blame.Why dont you do

3、 something about it?Perhaps they should / ought to do .词 汇compare, graph, phenomenon, fuel, quantity, per, data, catastrophe, climate, consequence, state, range, glance, widespread, decrease, steady, steadily, average, existence, outer, electrical, motor, can (n.), microwave, nuclear, disagreement,

4、title compare to, come about, quantities of, result in, build up, keep on, on the whole, make a difference, put up with, so long as, and so on语 法“It used for emphasisIt is human activity that has caused this global warming. 教材分析与教材重组1. 教材分析本单元以Global warming 为主线，旨在通过单元教学使学生经过思考、学习，认识到全球变暖的起因和它所带来的种种

5、后果。同时鼓励学生进一步阐述地球所面临的其它严重问题，激发学生的环保意识。引导学生运用所学语言、句式表达自己对这些现象的看法，培养他们为自己的观点辩论的能力，并能运用所学知识写一篇有关环境问题的论文。2. 课型设计与课时分配1st PeriodSpeaking and Listening 2nd PeriodReading3rd PeriodExtensive Reading 4th PeriodLanguage Study5th PeriodDrills 6th PeriodWriting . 分课时教案 The First Period Speaking and ListeningTeac

6、hing goals 教学目标1. Target language 目标语言a. 重点词汇和短语energy, light (v.), heat (v.), renewable, non-renewable, fuel, blame, run outb. 交际用语Expressing agreement and disagreementYes, I agree with you.Yes, I think so.I believe that youve got it right.I dont think so.I dont think thats right.Im afraid you are

7、wrong.2. Ability goals 能力目标Enable the students to talk about different sources of energy and express their own ideas.3. Learning ability goals 学能目标Help the students learn how to give their ideas about the use of energy.Teaching important points 教学重点Enable the students to express agreement and disagr

8、eement.Teaching difficult points 教学难点Enable the students to learn how to express agreement and disagreement.Teaching methods 教学方法Brainstorming, listening and group work.Teaching aids 教具准备A tape recorder and a computer.Teaching procedures & ways 教学过程与方式Step RevisionCheck the students homework and

9、 have a discussion with the students about the mistakes Mary made. Let the students have a clear understanding about the mistakes and then correct them.Step Warming upSample answers:RenewableNon-renewableWind powerCoalSolar powerNatural gas and oilHydroelectric powerNuclear powerStep Listening and D

10、iscussing T: Now please turn to page 31. Lets do listening. Before you listen to the tape, please read fast the statements in Exercise 1 to find out the listening points. Pay much attention to the key points while listening.Play the tape for the first time. Help the students get a general understand

11、ing about the dialogue. The students listen and try to finish Exercise 1. Play the tape again, train the students ability to spot specific information and understand the implication in the dialogue. The students listen and finish Exercise 2.Several minutes later.Step Homework1. Review the new words

12、and expressions you learned in this class.2. Preview Reading.The Second Period ReadingTeaching goals 教学目标1. Target language 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.

13、重点句式There is no doubt that the 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. Abili

14、ty goals 能力目标Enable the students to talk about the causes and effects of global warming.3. Learning ability goals 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 should do about it.Teaching important points教学重点Help the studen

15、ts learn how to debate over the topic “We should do nothing about global warming.Teaching difficult points 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.Teaching methods 教学方法Listening, reading and group work.Teaching aids 教具准备

16、 A recorder and a computer.Teaching procedures & ways 教学过程与方式Step RevisionCheck the homework.Review the useful expressions about agreement and disagreement.Show the students some pictures on the screen. The students have to give names of different energy sources relative to the pictures and deic

17、ide which energy sources are renewable and which are not. Then ask the students to tell the effects of using these energy sources.Step Pre-readingStep While-readingGet the students to read the passage fast and meanwhile help the students form a good habit of reading.After a few minutes.T: How many p

18、arts can this text be divided into?T: Any different ideas? OK. Now lets finish the form on the screen.Show the form on the screen and let the students complete the form.Main ideas of each partWriting techniquesStep ComprehendingLet the students read the passage again to find out the answers to the q

19、uestions in Exercises 1 and 2.T: Now lets 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 Debate Get the students to debate over the

20、statement: We should do nothing about global warming. Let them work in groups of six to prepare it. 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 th

21、ree 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 wi

22、th 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 the Internet and share it with the others in class. Next class Ill get some groups to act out your debates. Step Homework1. Read the passage again and review the n

23、ew words and expressions.2. Prepare the debate in groups.3. Preview Using Language WHAT CAN WE DO ABOUT GLOBAL WARMING？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

24、up with, leave an electrical appliance on, so 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 wa

25、rming.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 l

26、earn 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StepRevisionCheck the students homework to see whether they have mastered what they learnt last class.Check their group work debate. Ste

27、p Lead-inStep Listening and ReadingGet the students to read the two letters and then fill in the table on page 30.Skim the letters and find who the writers are and what their purpose of writing the letters is. Scan the letter and list Earth Cares suggestions and then in groups, discuss whether you t

28、hink you can carry out each suggestion. Give reasons for your answers.Step Making 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. Step HomeworkFinish the poster.The Fourth Period Lang

29、uage StudyTeaching goals 教学目标1. Target language 目标语言a. 重点词汇和短语glance, widespread, decrease, steady, average, existence, outer, on the whole b. 重点句式It is human activity that has caused this global warming. P29it is the burning of more and more fossil fuels that is resulting in this increase in carbon

30、 dioxide. P262. Ability goals 能力目标Learn about “it used for emphasis.3. Learning ability goals 学能目标Help the students learn how to use new words and expressions of this unit and how to use “it for emphasis.Teaching important points 教学重点The structure of “It is . that .Teaching difficult points 教学难点Teac

31、h the students how to master the use of “it for emphasis.Teaching methods 教学方法Explanation and practice.Teaching aids 教具准备A computer.Teaching procedures & ways 教学过程与方式Step RevisionA sample poster:What Can We Do about Carbon Dioxide?Carbon dioxide is one of the main causes of global warming which

32、will bring the earth catastrophe. Here are a few ways that individuals can follow to reduce its content in the air. Turn the electrical appliances off if you are not using them. Put on more clothes if you are cold instead of turning up the heat. Walk or ride a bike instead of using motor vehicles if

33、 you can. Recycle cans, bottles, plastics and newspapers; buy things made from recycled materials. Buy products that are made to save energy such as fridges and microwaves. Plant trees in your garden or school yard.Step Discovering words and expressionsT: Now please open your books and turn to page

34、28. Lets do some exercises. Step Discovering useful structuresT: Next lets turn back to page 29. Well learn a useful structure. Now compare these two sentences below.Show the following two sentences on the screen.Human activity has caused this global warming.It is human activity that has caused this

35、 global warming.由it 引导的强调句结构:It is (was) + 被强调局部 + that (who) + 句子其他局部注意：此结构强调的成分仅限于主语，宾语和状语。如：原句：My father did the experiment in the lab yesterday evening.强调主语： It was my father who did the experiment in the lab yesterday evening.强调宾语： It was the experiment that my father did in the lab yesterday e

36、vening.强调时间： It was yesterday evening that my father did the experiment in the lab.强调地点： It was in the lab that my father did the experiment yesterday evening. 又如：It was in that city that we met for the first time. It was not until he told me that I knew the truth.Step IV Using structuresGet the stu

37、dents to do more exercises about the use of “it for emphasis.T: Please turn to page 64. Read the instructions of the two exercises and then finish them.Sample answers to Exercise 2:(1) It was four Australian children who started it in 1996 when they organized the first childrens environmental confer

38、ence.(2) It is at this conference that we decide which projects we want to work on in the following year.(3) It was through one of these projects about five years ago that I first became involved in Millennium Kids.Step HomeworkMake four sentences with “it for emphasis.The Fifth Period DrillsTeachin

39、g goals 教学目标1. Target language 目标语言a. 重点词汇和短语environmental problem, plastic bags, reuse, litter, rubbish items, Clean Up Day, bring upb. 重点句式 P63Im sorry to bring this up, but .Im sorry to have to say this, but .They shouldnt have done it.They are to blame. Why dont you do something about it?Perhaps

40、 they should / ought to do .2. Ability goals 能力目标Enable the students to talk about some environmental problems and Clean Up Day.3. Learning ability goals 学能目标Help the students learn how to express their own ideas about some environmental problems.Teaching important points 教学重点Enable the students to

41、talk about some environmental problems.Teaching difficult points 教学难点Enable the students to talk about some environmental problems.Teaching methods 教学方法Listening, speaking and group work. Teaching aids 教具准备A recorder, a computer and a projector.Teaching procedures & ways 教学过程与方式Step RevisionChec

42、k the homework to see whether the students have mastered the use of “it for emphasis. Step ListeningGet the students to prepare for the listening by asking some questions.T: OK. Well listen to a dialogue about it. Please open your workbooks and turn to page 62. Please read the instructions and quest

43、ions fast to find out the listening points first. Pay much attention to the key points while listening.Play the tape for the first time. Help the students get a general understanding about the dialogue. The students listen and try to answer questions in Exercise 2. Play the tape again, train the stu

44、dents ability to pick out specific information. The students listen and fill in the information sheet in Exercise 3. Play the tape for a third time and let the students check their answers by themselves.Step TalkingStep Listening task and Speaking taskT: Though there are many serious environmental p

45、roblems, fortunately most countries realize these problems and they are taking steps to save the earth. Clean Up Australia Day is a good example. Next well listen to Toms talk about it.Play the tape for the first time. Help the students get a general understanding about the talk. Play the tape again

46、, let the students pay attention to the dates Tom mentioned and what happened on these dates. While listening, ask the students to make some notes in the table on page 65. Play the tape for the third time, let them have a check.T: OK, lets check the answers to Exercise 1. Explain some difficult poin

47、ts if necessary.Ask the students to read the top 9 rubbish litter Tom mentioned in his talk and let them talk about litter at their school or communities. Step HomeworkPrepare a talk about Clean Up China Day.The Sixth Period WritingTeaching goals 教学目标1. Target language 目标语言a. 重点词汇和短语litter, butt, po

48、llute, endanger, solution, add up to, break down b. 重点句式 P66Apart from the fact that butts spoil the beauty of the environment, they contain some very toxic chemicals.It is up to people not to let plastic bags become litter. The earth would be a better place because it would be less polluted.2. Abil

49、ity goals 能力目标Enable the students to write an essay on one of the environmental problems.3. Learning ability goals 学能目标Enable the students to learn how to write an essay.Teaching important points 教学重点The structure of an essay.Teaching difficult points 教学难点Enable the students to learn how to support

50、their points of view.Teaching methods 教学方法Task-based method.Teaching aids 教具准备A computer and a projector.Teaching procedures & ways 教学过程与方式Step Revision and Lead-inCheck the homework. Ask two groups to present their talk to the class.Step ReadingT: Open your workbooks and turn to page 66. Read Toms essay about litter. Make a summary for e