Unit 5 For Want of a Drink教案(綜英二)

1、Unit 5 For Want of a Drink教案(綜英二)Unit 5一、授課時間：第1112周二授課類型：課文分析10課時；習題講解2課時三授課題目：For Want of a Drink四授課時數(shù)：12五教學目的和要求：通過講授課文使學生了解人類正在面臨水資源嚴重匱乏的事實，給每一個人敲響了警鐘，學會用英語解釋句子以達到學以致用的目的。要求學生主動地預習課文，課前準備練習，學會分析文章體裁和進行段落劃分。六教學重點和難點：1）背景知識的傳授：The Earthquake in Port-au-Prince; Noahs Ark; The Byzantine emperor Just

2、inian; Osiris; the Jordan; the Ganges; 2）文章的體裁分析及段落劃分；3）語言點的理解：Word study: apparatus; aquifer; arid; breed; capacious; category; chronically; deity; delta; desalination; diminish; distribute; diversion; endangered; equilibrium; ethanol; evaporate; extinct; extract; famine; finite; flush; girder; gla

3、cierGrammar Focus: Learn to use how to denote implied condition.七教學基本內(nèi)容和綱要Part One Warm up1.1 Warm-up Questions1. What is the author trying to tell people in this essay? Is he addressing any particular target audience?2. How does the author explain the importance of water to human beings? Do you agr

4、ee with the author that water is at least as important to us as oil?3. Do you agree that humanity is now facing a serious water crisis? Why does the author say “Everyone must use less water if famine, pestilence and mass migration are not to sweep the globe”? How do those countries with abundant wat

5、er resources affect global water shortage?4. Has the author said anything new to you in this essay? Are there any lines in this essay that you find particularly thought-provoking and feel particularly deserve our attention? Underline them and share with your classmates.5. Have you found anything imp

6、ortant that the author has left untouched on this topic? How would you improve upon this essay if you are to write a similar piece?6. Do you find the essay hard to follow because it is technical and scientific? Are you bored with these endless discussions of environmental problems? Can you explain w

7、hy you feel the way you do when you read this essay?Part Two Background Information2.1 Author 2.2 Noahs Ark; Port-au-Prince; The Byzantine emperor Justinian; Osiris; the Jordan; the GangesPart Three Text Appreciation3.1 Text Analysis3.1.1 Theme of the text 3.1.2 Structure of the text3.2 Writing Devi

8、ces3.2.1 The development of this essay by giving some figures3.3 Sentence ParaphrasePart Four Language Study4.1 Phrases and Expressions 4.1.1 Word list:4.1.2 Phrases and expressions list: 4.1.3 Word Building4.2 Grammar 4.2.1 Object Part Five Extension5.1 Group discussion5.2 Debating 八、教學方法和措施本單元將運用黑

9、板、粉筆、多媒體網(wǎng)絡輔助教學設備等教學手段，主要采用以學生為主體、教師為主導的任務型、合作型等教學模式，具體運用教師講授法、師生討論、生生討論等方法進行教學。九作業(yè)，討論題，思考題完成課后練習；多看英語報刊雜志及英語經(jīng)典小說，擴大閱讀量；精聽與泛聽相結合，逐步提高自己的聽力水平；積極參加英語角等有助于提高英語口語的活動；堅持用英語寫日記；做一些專四相關練習；十參考資料：1) 楊立民主編,現(xiàn)代大學英語精讀（4）第二版，學生用書。北京：外語教學與研究出版社,2012。2) 楊立民主編,現(xiàn)代大學英語精讀（4）第二版，教師用書。北京：外語教學與研究出版社,2012。3) 李觀儀主編，新編英語教程（第三

10、、四冊）。上海:上海外語教學研究出版, 1999。4) 黃源深，虞蘇美等主編，綜合英語教程（1-4冊）。北京：高等教育出版社，1998。 5) 高等學校英語專業(yè)英語教學大綱，北京：外語教學研究出版社，2000。6) Judy Pearsall主編，新牛津英語詞典。上海：上海外語教育出版社，1998。7) 丁往道、吳冰等編著，英語寫作手冊。北京：外語教學與研究出版社。8) 張道真，現(xiàn)代英語用法詞典（重排本）。北京：外語教學與研究出版社，1994。9) 張道真，溫志達, 英語語法大全上、下卷。北京：外語教學與研究出版社，1998。十一、課后小結Unit 5 For Want of a DrinkP

11、art One Warm up1.1 Warm-up Questions1. Do you think water is important?Yes, water is the source of all life and we need it every day. No matter who we are, where we are, or what we do, we are dependent on water.2. What is the situation of water resources on the earth?70 percent of the earth is cover

12、ed with water but 97.5% of our water resources are salty-its sea water. 90 percent of all fresh water is ice and snow, located in polar areas or on high mountains.3. Do we Chinese need to worry about water?Yes, because of huge population, China has less than a quarter of the worlds average per capit

13、a water capacity.4. What should we do to save water resources?1). When we wash hands and face we shouldnt leave the water running, wed better use a basin. When we leave, we should turn off the taps.2). When we take a bath, dont have the water running all the time.3). The water we used can be used to

14、 water the flowers or sweep the floor.Part Two Background Information2.1 As is known to all, the yellow river is our mother river, without her, we cant live a happy life. But she has been polluted by us .when you look at this picture, what would you think of?Through history, water is in peoples body

15、 and soul.When we get back to our history, there is a classic story about water conservancy that is Da YuS Successful Regulating of Floodwaters.Yu the Great was the chieftain of the legendary Xiahou clan. He was originally called Yu or Xiayu. According to legend, the Yellow River flooded during the

16、reign of Empe ror Yao, and the people were forced to abandon their villages, and go to live in trees or on mountaintops. The flood brought great misery to the people. Emperor Yao, the chieftain of the Yan-Huang tribal alliance, appointed Gun to harness the flood. Gun built dikes to keep back the wat

17、er, but failed. shun, who succeeded Yao, killed Gun, and appointed Guns son Yu to continue with the flood-harnessing work. Yu adopted the dredging method to lead the flood waters to flow along river courses into the sea. Yu worked very hard. It was said that during the 13 years he spent taming the f

18、loods, he passed his home three times, but did not enter until his task was completed. As a result of his successful efforts, the people bestowed on him the title “Yu the Great” and Shun chose Yu as his successor, with the approval of the tribal chieftains.2.2 the Jordan River and the GangesChristia

19、ns, Jews, and Muslims all considered consider the Jordan River holy.Every year many people from all over the world go to the Jordan River for receiving baptism. 2.3 The Earthquake in Port-au-PrincePort-au-Prince is the capital and largest city of the caribbean country of Haiti, and is one of the nat

20、ions largest centers of economy and finance. It was catastrophically affected by an earthquake on january 12,2010,with large numbers of structures damaged or destroyed. Haitis government has estimated the death toll at 230,000 and says more bodies remain uncounted. Aid has been delivered to Port-au-

21、Prince by numerous nations and voluntary groups as part of a global relief effort.Part Three Text Appreciation3.1 Text Analysis3.1.1 Theme of the text 1) In this article, the author introduces a warning about the water crisis and then gives a causal analysis of water shortage: population explosion s

22、ince the second half of the last century, soaring agricultural demands for better tasting food and growing industrial and domestic demands for water.3.1.2 Structure of the textPart 1. Introduction: A warning about a water crisis (paras. 1-2)Part 2. Causal analysis of water shortage (paras. 3-5)Para.

23、 3: Population explosion since the second half of the last century Para. 4: Soaring agricultural demands for better tasting foodPara. 5: Growing industrial and domestic demands consuming 30% of the withdrawalPart 3. Difficulty in satisfying these demands (paras. 6-8)Para. 6: The supply of water bein

24、g finitePara. 7: 97% of the worlds water being salty Para. 8: Fresh water available for living things being scarcePart 4. Characteristics of water as natural resource (paras. 9-15)Paras. 9-10: Water being not evenly distributedParas. 11-12: Water being local and heavy to moveParas. 13-15: Undergroun

25、d water being almost used as a free resourcePart 5. Reiteration of the value of water (Paras. 16-17)Part 6. Conclusion: Difficulty in using the resource sensibly (paras. 18-19)Para. 18: The belief that water is a free resourcePara. 19: The holy quality water is invested withRelevant questions:Q1: Do

26、 we have a water problem or not? Q2: How serious is the problem?Q3: Where does our country stand in the world in terms of its share of water resources?Q4: What are the main causes of our water problem?Q5: What do you think we can do to solve this problem?3.2 Writing Devices3.2.1 Comparison3.3 Senten

27、ce Paraphrase1. When the word water appears in print nowadays, crisis is rarely far behind. (para. 1)Today, whenever people mention the word “water” in books or newspapers, you know they are going to talk about water crisis.The opening paragraph summarizes what books and newspaper articles say about

28、 the present water problem.in print: printed in a book, newspaper, etc.rarely far behind: very near2. Water, it is said, is the new oil: a resource long squandered, now growing expensive and soon to be overwhelmed by insatiable demand. (par1)Like oil, water, a natural resource, which has for a long

29、time been stupidly wasted, is becoming an expensive commodity, and will soon be exhausted by the excessive consumption of humanity.Here the writer is reminding people of the Mideast Oil Crisis in the 1970s. In October 1973, Arab petroleum exporting countries cut off exports of petroleum to many West

30、ern nations, including the United States, in response to their involvement in the Arab-Israeli conflicts. The embargo 禁運，貿(mào)易禁令 led to rising oil prices in the early 1970s, bringing widespread panic to Western countries. Many people believe that high oil consumption in these countries was the root cau

31、se of the oil crisis. The Mideast Oil Crisis enhanced public environmental awareness and heightened public concern over natural resource scarcity.3. Aquifers 地下蓄水層 are falling, glaciers vanishing, reservoirs drying up and rivers no longer flowing to the sea. (para. 1)This sentence explains why the a

32、uthor believes that water is “soon to be exhausted” by describing what is happening to major water-holding parts of Earth including aquifers, glaciers, rivers (all naturally formed), and man-made reservoirs. The author uses accurate and specific verbs to show they are disappearing from our planet: (

33、aquifers) falling: becoming lower (glaciers) vanishing: melting (reservoirs) drying up: becoming dry (rivers) no longer flowing to the sea: （sections of them）drying up so that they areno longer a continuous flow of water to the sea.4. Climate change threatens to make the problem worse. (para. 1) thr

34、eaten 預示兇兆 : to be likely to harm or destroy sth, e.g.1). Global warming, which causes the seas to rise, threatens to engulf islands.2). The civil war is threatening to split the country.3). The countrys crippling 有嚴重危害的 debts could threaten its entire financial system.5. Everyone must use less wate

35、r if famine, pestilence and mass migration are not to sweep the globe. (para. 1)All of us must use less water to avoid such disasters as famine, epidemic, and mass migration throughout the world.mass migration: here referring to the movement of large numbers of people from one place or one part of t

36、he world to another to escape the disasters caused by shortage of waterNote: The concluding sentence suggests a simple solution to the problem: use less water.6. The language is often overblown, and the remedies sometimes ill-conceived 籌劃不周的;計劃欠周詳?shù)?, but the basic message is not wrong. (para. 1)The

37、language used in these books and articles are often exaggerated, and the solutions suggested sometimes do not sound sensible (for example, we may ask, “is it sensible to urge people to use less water when they want to maintain a comfortable lifestyle and live on a nutritious diet?”)ill-conceived: no

38、t showing careful thought; not sounding sensiblethe basic message: the key idea that people should use less water7. Bringing supply and demand into equilibrium will, and political disputes may increase in be painful number and intensify in their capacity to cause trouble. (para. 2)It is extremely di

39、fficult to balance peoples demand for more water and the amount of water that is available.bringing supply and demand into equilibrium:making demand match supply; not using more water than is availablepolitical disputes may increase in number:(there will be) more and more political disputes over wat

40、erintensify in their capacity to cause trouble:(and these disputes) may cause more and more serious troubles8To carry on with present practice would indeed be to invite disaster. (para. 2)If people maintain their present lifestyle and continue wasting water the way they do, they would head for disas

41、ter. This is a sentence of implied condition, which is conveyed in the subject “to carry on with present practice.”invite: to encourage sth bad to happen, esp. without intending to, e.g.1). The First Ladys recent trip invited sharp criticism. 9.Then the green revolution, in an inspired 有創(chuàng)造力的；品質(zhì)優(yōu)秀的；c

42、ombination of new crop breeds, fertilizers and water, made possible a huge rise in the population. (para. 3)The sentence lists the causes for a tremendous increase in the worlds food supply. First and foremost, improved methods of farming, then better breeds, and fertilizers. The consequenceis a hug

43、e rise of the worlds population.the green revolution: a term widely used to describe the effort to increase and diversify crop yields in agriculturally less advanced regions of the world/a large increase in the amount of crops, such as wheat or rice, that are produced because of improved scientific

44、methods of farminginspired: extraordinary good, brilliant and creative1). The film is hailed as an inspired adaptation of a bestseller.2). She is one of the few inspired teachers Ive ever seen.10Domestic activities take the other 8%. (para. 5) domestic activities: referring to sanitation, waste disp

45、osal, etc.11. One reason is that the supply of water is finite.One reason is that the amount of water available is limited.12. The world will have no more of it in 2025 or 2050 than it has today, or when it lapped at the sides of Noahs Ark. (para. 6)In 2025 or 2050, the worlds water supply will be t

46、he same as it is today, or in the days of Noah.When it lapped at the sides of Noahs Ark: when flood water hit the sides of Noahs Ark in small wavesThe metaphor is used to emphasize the fact that worlds water supply has remained the same since ancient times.13. the law of conservation of mass (para.

47、6)In 1772, British physician Daniel Rutherford isolated nitrogen from air and discovered that objects would not burn in it. Four years later British chemist Joseph Priestley discovered that objects burned more brightly and rapidly in oxygen, another component of air. Based on Priestleys discoveries,

48、 French chemist Antoine Lavoisier postulated that air was a mixture of oxygen and nitrogen and that only one-fifth of air was oxygen. He proposed that oxygen was the part of air that combined chemically with burning or rusting materials. Lavoisier also consolidated discoveries made in connection wit

49、h gases into the law of conservation of mass. The law of conservation of mass states that, in a chemical reaction, the total amount of matter remains constant. The law of conservation of mass served as the cornerstone of 19th-century chemistry. Nature recycles water all the same. Water in oceans, la

50、kes, and rivers evaporates, or turns into a gas and rises into the air. The water vapor eventually turns back into a liquid and falls as rain. The water cycle keeps the total amount of water on Earth the same.14. The value of water as a commodity of course varies according to locality, purpose and c

51、ircumstance. (para. 9)vary: to change or be different according to the situation, e.g.1). Teaching methods should vary according to the topic.2). The ability to tolerate pain varies from person to person.3). Class size of elementary schools here varies between 35 and 40.4). The price of a cut and bl

52、ow-dry varies from $ 13.95 to $25.15. Scarce or plentiful, water is above all local. (para. 11)Whether there is little or a lot of it, most importantly, water is found in particular areas, not everywhere on Earth (not evenly distributed).scarce or plentiful: a phrase functioning as a conditional cla

53、useMore examples:1). All people, black or white, rich or poor, should live side by side.2).In wealth or in poverty, his wife proved a reliable anchor for his life. 16. the opportunities diminish to the point where it has no uses except to sustain deltas, wetlands and to carry silt out to sea. (para.

54、 11)near the sea, the river water becomes less and less useful except finally to sustain deltas, wetlands and to carry silt out to sea.17. as the demands of farmers have outgrown their supplies of rain and surface water. (pa. 13)as farmers need more fresh water than they can get from rivers, lakes a

55、nd reservoirs as well asrainfalls.outgrow: to grow/increase faster than, e.g.1). Mankind is outgrowing food supplies.2). The citys migrant population has outgrown its public facilities.3). My granddaughter has outgrown all her clothes. 18. . the quantities being withdrawn exceed the annual recharge.

56、 (para. 13)withdraw: (figurative use) to take water from below the surface of Earth (as you take money from your bank account)exceed: to be greater than a particular number or amounte.g. 1). When deaths exceed births, the population goes down.2). Income is expected to exceed expenditure.recharge: to

57、 refill ( a battery) with electricity, here: to refill (the ground) with waterNote: The word “charge” has many different meanings.19. deep-groundwater tables have dropped by up to 90 meters. (para. 14)water table: groundwater level, that is, the upper surface of groundwater, below which pores in the rocks are filled with water.20. Part of the beauty of the borehole is that it requires no elaborate apparatus. (para. 15)Obtaining water out of the ground by drilling deep holes is easy, requiring no complicated equipment.the beauty of sth: an attractiv