【开学大礼包】2012高中英语Unit4GlobalwarmingPeriod5ReadingandWriting精品教案新人教版选修6

1、用心爱心专心1Period 5 Read ing and Writi ng整体设计教学内容分析The teachi ng materials of this period contain three parts. The first part is the readi ng passage on Page 30 withthe title of“What Can We Do About Global Warming? ”.It consists oftwo letters:a request from a student for help on a school project and the

2、 reply. The letters bring studentsattentionto a commonly held belief that individualsare powerless to do anythingabout en vir onmen tal problems and that it is gover nments that are in a positi on to act and have the responsibilityto act. Earth Cares letter suggests ways to save energy and therefore

3、 decreasethe amount of carb on dioxide that is poured into the atmosphere.The second part is Exercise 2 on Page 31,which asks the students to make a poster for their school that tellsstude nts various ways they can reduce the amount of carb on dioxide in the air.The third part is a writing task desi

4、gned by the teacher,which asks students to write ashort passage about global warm in g.By practic ing writi ng the passage,stude nts can stre ngthe ntheir kno wledge about global warmi ng and develop their sense of en vir onmen tal protectio n.三维目标设计Kno wledge and skills1.To enable the students to k

5、now how to prevent global warming.2.To get thestudents to learn the following useful new words and expressions:on behalf of,advocate,commitment,put up with,pollution , electrical,so long as,casual,and so on , motor,cans,circumstances,microwave,refresh,educator,contribution3. To help the students lea

6、rn how to write a poster.4.To foster the studentsability in skimming andlooking up informationin reference booksand improve the stude nts readi ng ability.Process and methodsReading for specific information,summarizing,discussing and practicing.Emotion , attitude and value1. To develop stude nts sen

7、se of en vir onmen tal protect ion.2. To develop the students sense of cooperation with others to solve problems.教学重、难点1. The understanding of the reading passage.2. The following key phrases:make a differenee,put up with,so long as3. The following key sentences(1) Together,individuals can make a di

8、fferenee.(2) lt is OK to leave an electrical applia nee on so long as you are using it.(3) Get your pare nts to buy things that are econo mical with en ergy.(4) Rememberyour con tributi on coun ts!4. Teaching the students how to write a poster.教学过程用心爱心专心2S tup 1 RevisionCheck the homework of the las

9、t period.S li-p 2 Lead inShow the studentsthe following pictures on the slide and ask students the following用心爱心专心3questio ns1.Have you ever seen the film 2012?2.What kind of disasters have you seen in the film?3.What have you learnt from the film?And then ask them：What causes the global warming?Lea

10、d them to tell the cause:gas emission.Atthe same time show the following picturesAt last,ask the question:What can we do about global warming?”And then lead in the readi ng text.SLep 3 Skimming1. Skim the first letter,and answer the questions below:(1)Who is the writer?(2)What are the two concerns o

11、f the letter? Suggested answers:(1) A stude nt n amed Ouya ng Guang.(2)His opi nion that,as an in dividual,he can have no effect on environmen tal problems.Gett ing somesuggesti ons for what he can do about global warm ing.2. Read the second email,and answer the following questionDoes Earth Care agr

12、ee with Ouyang Guangs opinion that individuals can have no effect?Suggested answer:No, Earth Care does not agree.Step 4 Scanning and discussionAsk students to scan the letters and list Earth Cares suggestions in the chart on P30and discuss whether they can carry out each suggesti on .Give reas ons f

13、or their an swers.A nd the n ask one or twogroups to make an oral report.Earth Cares suggesti onCan you carry it out?ReasonsIf you are not usingYes.Save en ergy.electrical applia nces,Afterof globaltalking about the causes of gas emission , ask studentswarming? ”.Help them answer:natural disasters(f

14、loodthe question“What is the effect,drought,hurricane,tsunamiand torn ado),spread of diseases,sea level rising,decrease of species and so on.用心爱心专心4turn them off.If youre cold,put on more clothesin stead of tur ning up the heat.Yes.Save en ergy.Motor vehicles use a lot ofenergy,so walk or ride a bik

15、e ifyou can.Yes.Save en ergy.Recycle cans,bottles,plastiesand n ewspapers and buy thingsmade from recycled materials.Yes.Save en ergy.Get your parents or friends to buyproducts that are made to save energy.Yes.Save en ergy.Pla nt more trees.Yes.Pla nts absorb carb on dioxidefrom the air.Talk with yo

16、ur family and friendsabout global warm ing and tellthem what youve lear ned.Yes.Together,individuals can make adiffere nee.Slup 5 Language studyShow the stude nts the follow ing Ian guage points in the passage in a slide show.1. make a difference(P30)【原句再现】Together,individuals can make a differenee.

17、众人拾柴火焰高。【观察探究】(1) The fact that I can now organize my own time makes a big differenee.现在我能自己安排时间了，这对我有很大的作用。(2) It makes no differe nee to me what you say.Im not going.无论你怎么说对我都没有影响，反正我不去。(3) It wont make much differe nee whether you go today or tomorrow.你今天去也好，明天去也好，关系不大。(4) She makes no differe ne

18、e betwee n her two sons.她对两个儿子一视同仁。【归纳总结】make a difference(to sb./sth.)意为对某人/某物起作用、有影响”，differenee前面可以加不同的修饰词，如no/some/little/much等。make a differenee between.表示区别对待.”。【即景活用】When shall I go there?It_ whether you go today or tomorrow.A. made no differeneeB.made no senseC. makes no differeneeD.makes no

19、 senseSuggested answers:C2. put up with(P30)用心爱心专心5【原句再现】We do not have to put up with polluti on.我们不必忍受污染。【观察探究】(1) 1 put up with her so long as I could.我尽可能地容忍她。(2) That lady,as a housewife,has a lot to put up with.作为一名家庭主妇，那位妇女必须要忍受许多事情。【归纳总结】put up with.容忍，忍受，宾语可以是人或者事物。【知识拓展】bear和stand在疑问句和否定句中

20、和can,be able to连用，也表示忍受，其宾语多为事物。(2)live with sth.忍受某事；live with sb.和某人一起生活。【即景活用】He behaved badly towards his wife.As a result she could nt_ him and left him.A.come up withB.catch up withC. put up withD.live upSuggested answer:C3.so long as(P30)【原句再现】It is OK to leave an electrical applianee on so l

21、ong as you are using it if not,turn itoff!只要你在使用，让家用电器开着无所谓一一如果不用，就请关闭！【观察探究】(1) You can borrow my bike so long as you remember to return it as soon as possible.只要你记着尽早归还就可以借用我的自行车。(2) We can surely overcome the difficulties so long as we are closely un ited.只要我们紧密地团结在一起，我们就一定能够克服这些困难。【归纳总结】so long

22、as起连词作用，引导条件状语从句，可以与as long as互换，意思是只要.，前者语气较强，后者主要用于口语中。【知识拓展】条件状语从句的弓丨导词还可以是if , uni ess ,on con diti onthat , suppose ,suppos ing , provided(that)等。【即景活用】_ I amconcerned,we should be brave and we will reach the top of the hill at last _we try our best to climb the hill.A. So long as;as long asB.

23、As far as;as far asC. As far as;so long asD. On condition that;as soon asSuggested answer:CSlt-p 6 Writing用心爱心专心61. Ask the students to make a poster for their school that tells students various ways theycan reduce the amount of carb on dioxide in the air.Tell stude nts to illustrate their poster an

24、dgive it a headi ng that will be eyecatch ing and will make others want to read it.Suggested answer:Fight global warm ingCut dow n on en ergy.Cut dow n on carb on dioxide.If not using an electrical item,tur n it off.If you sudde nly feel cold,dont turn the heat up,put on a jacket in stead.Walk or ri

25、de a bike and save fossil fuels.Recycle paper,cardboard and newspapers.Buy products made from recycled materials.Buy en ergysav ing products like low en ergy light bulbs.Pla nt trees to absorb CO2.Tell your friends about global warm ing.Every effort counts!2. Ask students to choose a topic from the

26、list that they feel strongly about.Make noteson the topic using headings similar to the table in the reading task.Use the passage as a model. Writi ng tips:Step 1:Write out the thesis statement(point of view).Step 2:Write out the topic sentence of the first body paragraph.Step 3:Give the supporting

27、points and details about the first subtopic.Step 4:Write out the topic sentence of the second body paragraph.Step 5:Give the supportingpoints and details about the second subtopic(more bodyparagraphs).A sample versionThe Environmen tal Effects of Fossil FuelsThere is no doubt that fossil fuels bring

28、 a lot of good to us.But do you know that many ofthe environmen tal problems our country faces today result from our fossil fuel depe ndence?The environment faces air pollution, global warming,acid rain , and several other very seriousproblems because of our use of fossil fuels.Over the last 150 yea

29、rs,burning of fossil fuelshas resulted in more tha n 25 perce nt in crease in carb on dioxide in our atmosphere.Carbon dioxide is one of the main factors in global warming which is negatively affectingevery on e.Fossil fuels also affect water polluti on, land pollutio n , and thermal polluti on( hea

30、tpollution).Coal mining is one of the causes of pollution in the environment.After the miningis completed,the land will rema in barre n. Materialsother tha n coal are also brought to the surfacein the coal mining process and these are left as solid wastes.The product ion, tran sportati on,and use of

31、 fossil fuels are to blame for the effects of pollution on the environment.Then what should we do?We shouldspare no effort to improve our environment.Please save energy and use fewer fossil fuels in our daily lives.SI up了Homework1. Master the Ianguage points in the text.2. Finish the writing task.S

32、Lep S Reflection after teaching教学参考Global Warmi ng Solutio nsWhat Can We Do?用心爱心专心7The evidenee that humans are causing global warming is strong,but the question of what todo about it rema ins con troversial.Ec onomics,sociology,and politics are all importa nt factorsin pla nning for the future.用心爱心

33、专心8Even if we stopped emitting greenhouse gases(GHGs)today，the Earth would still warm by another degreeFahrenheit or so.But what we do from today forward makes a big difference.Depending on our choices，scientistspredict that the Earth could eventually warm by as little as 2.5 degrees or as much as 1

34、0 degrees Fahrenheit.A commonly cited goal is to stabilize GHG concentrations around 450550 parts per million(ppm)，or about twicepreindustrial levels.This is the point at which many believe the most damaging impacts of climate change can beavoided.Current concentrations are about 380 ppm，which means

35、 there isnt much time to lose.According to the IPCC，wed have to reduce GHGemissions by 50% to 80% of what theyre on track to be in the next century to reach this level.Is this possible?Many people and governments are already working hard to cut greenhouse gases，and everyone can help.Researchers Stephen Pacala and Robert Socolow at Princeton University have suggested oneof sources with technologies available in the next few decades，rather change in asingle area.They suggest 7 wedges that could each reduce emissions togethercould hold emissions at appro