高中英語：unit 4 global warming warming up 課件 人教版選修6 （共119張）.

1、LOGOthemegallery themegallerythemegallerythemegalleryHeavy snow hits ChinaHeavy snow hits ChinathemegalleryThings that use energy around us :themegalleryPlace and The Related Energywindmills windthemegalleryPlace and The Related Energya coal power station coalthemegalleryPlace and The Related Energy

2、oil refineryoilthemegalleryPlace and The Related Energynuclear power plant nuclearthemegalleryPlace and The Related Energysolar panels solar powerthemegalleryPlace and The Related Energya hydro-electric dam waterthemegalleryEnergy at Home v Coalv Oilv Natural gasv Wind (wind power)v Sun (solar energ

3、y)v Uranium (nuclear energy)v Water (hydro-electric power)v Plant waste (biomass energy)v Hot springs or geysers (geothermal energy)v The sea (tidal energy)_ themegalleryEnergy at Homesources of energyrenewable or notv Non-renewablev Non-renewablev Non-renewablev Renewablev Renewablev Non-renewablev

4、 Renewablev Renewablev Renewablev RenewablethemegalleryFossil FuelthemegalleryFossil Fuelcoaloil natural gasglobal warming LOGOthemegalleryNSEFC Students Book 6Intensive readingthemegalleryClick the picture to play the video.themegallerythemegalleryA greenhouse is made of glass and is used for growi

5、ng plants, especially during cold weather.What is a greenhouse made of and used for?themegallerytraps the heat from the sunkeeps it from escapingheat upA greenhouseHow does it work?themegallery“greenhouse gases”What do you think “greenhouse gases” do?themegallerythemegallerySkim the article: What ar

6、e the names of the three scientists mentioned in the article?Who wrote the article?What is the name of the magazine?Tip: In English, some nouns begin with a capital letter, such as names of people and places, titles of magazines, newspapers, stories and books, peoples titles, etc.themegalleryLets ch

7、eck it: Who wrote the article?What is the name of the magazine?What are the names of the 3 scientists?themegallerySkim the organization of the article: A first paragraph that runs across the page and is in bold (粗體粗體)A title The main text is in 2 columns (欄欄), and has 2 graphs (圖表圖表) and 2 quotes (引

8、言引言).themegallerySkim the title: THE EARTH IS BECOMING WARMER BUT DOES IT MATTER?A. The earth. B. Global warming. C. Becoming warmer doesnt matter.A. Expositive. B. Descriptive. C. Argumentative. themegalleryThe organization of an expositive: IntroductionA titleBodyConclusionthemegallerySkim : Para.

9、 1Para. 2-3Para. 4-8Para. 9 themegalleryMatch the parts with the main ideas: themegalleryMatch the parts with the writing skills: themegallery Read the 2 graphs: themegalleryRead something more about the 2 graphs: themegalleryLets check it: The 1st graph shows the global t between 1860 and . The tem

10、perature i and decreased over this period but on the whole it i by around one degree Fahrenheit. During this time, the earth reached its l temperature in about 1910 and its highest in . There was a steady i in the temperature during the 20 years after 1980. We can see from the graph that the earth h

11、as become w since early last century.themegalleryLets check it: The 2nd graph shows the amount of c d in the atmosphere from to 1997. The Co2 c steadily i over this forty-year period. It went up from 315 to parts p million. Tip: While reading a graph, youd better pay attention to the numbers.themega

12、llery1. The temperature last century didnt increase much.2. Everyone believes that global warming is caused by the activities of humans.3. Janice Foster believes that global warming is caused by burning fossil fuels.4. Natural gas is a greenhouse gas.5. Carbon dioxide is a byproduct of burning fossi

13、l fuels. Read the article carefully. Are these statements true or false? themegallery6. People accept Charles Keelings data because he took accurate measurements.7. Flooding could be one of the effects of future global warming.8. George Hambley believes scientists are just guessing about the effects

14、 of global warming.9. George Hambley is worried about the effects of carbon dioxide on plant growth.10. It is clear what the effects of global warming will be.Read the article carefully. Are these statements true or false? themegalleryTip: You can know somebodys opinion through understanding his .Wh

15、at do the 3 scientists think about global warming? Do they agree with one another?Read the article carefully. themegalleryRead the article carefully. Dr. Janice Foster thinks the effects of global warming could be very serious.George Hambley thinks global warming will be mild with few bad environmen

16、tal consequences.Charles Keeling believes it is the burning of more and more fossil fuels that is resulting in a big increase in carbon dioxide.Dr. Janice Foster thinks the effects of global warming could be very serious.George Hambley thinks global warming will be mild with few bad environmental co

17、nsequences.Charles Keeling believes it is the burning of more and more fossil fuels that is resulting in a big increase in carbon dioxide.Dr. Janice Foster thinks the effects of global warming could be very serious.George Hambley thinks global warming will be mild with few bad environmental conseque

18、nces.Charles Keeling believes it is the burning of more and more fossil fuels that is resulting in a big increase in carbon dioxide.themegalleryListen and fill in the blanks. themegalleryListen and fill in the blanks. THE EARTH IS BECOMING WARMERBUT DOES IT MATTER? During the 20th century the temper

19、ature of the earth rose about one degree Fahrenheit. That probably doesnt sound very much to you or me but it is a rapid increase _ _ (與與相比相比) most natural changes. So how has this _ _ (發(fā)生發(fā)生) and does it _ (起作用起作用) ? Earth Cares Sophie Armstrong explores these questions. themegalleryListen and fill

20、in the blanks. _ _ _ _ _ (毫無疑問毫無疑問) the earth is becoming warmer (see Graph1) but there is _ _ (激烈的爭論激烈的爭論) over whether it is human activity that has caused this global warming or whether it is just a _ _(自然現(xiàn)象自然現(xiàn)象). themegalleryListen and fill in the blanks. Many scientists believe that people have

21、 caused the _ (增長增長) in the earths temperature through the burning of fossil _ (燃料燃料) like coal, natural gas and oil to produce energy. Some _ (副產(chǎn)品副產(chǎn)品) of this process are called “greenhouse” gases, the most important one _ (是是) Co2. Dr Janice Foster explains, “You see, there is a natural phenomenon

22、 that scientists call the -_ _ (溫室效應(yīng)溫室效應(yīng)). themegalleryThis is when small amounts of gases in the atmosphere, like Co2, methane and water vapor, _(困住困住) heat from the sun and _ (因此因此) warm the earth. So, we need those gases. The problem begins when we add huge _ ( 大量的大量的) extra Co2. The increased am

23、ount of Co2 _ (意味著意味著) more heat is trapped in the atmosphere _ (引起引起) the global temperature to go up.” themegalleryWe know that the _ (水平水平)of Co2 have increased greatly over the last 100 to 150 years. _ _a scientist called Charles Keeling _ made _ _ (精確的統(tǒng)計精確的統(tǒng)計) of the amount of Co2 in the atmosp

24、here from 1957 to 1997. He found that, between these years, the carbon dioxide _ (含量含量) of the atmosphere went up from around 315 parts per million to around 370 parts _ (每每) million. Listen and fill in the blanks. themegalleryListen and fill in the blanks. All scientists accept this _ (數(shù)據(jù)數(shù)據(jù)). They

25、also believe _ _ the burning of more fossil fuels _ is _ _(導(dǎo)致導(dǎo)致) this increase in carbon dioxide. But there are some very different _ (態(tài)度態(tài)度) among scientists towards this _ (問題問題) . themegalleryListen and fill in the blanks. Dr Janice Foster says that over the next 100 years _ _ _(數(shù)量數(shù)量) warming coul

26、d be _ _ _(低到低到) 1 to 1.5 oC but it could be as much as 5 oC. “An increase of five degrees would be a _ (災(zāi)難災(zāi)難), I would say. We cant predict the _ ( (氣候氣候) ) well enough know what to expect. But it could be very serious.” themegalleryListen and fill in the blanks. How serious? Some people think futu

27、re global warming would cause the sea level to rise _ several meters; others predict _ (嚴(yán)重的嚴(yán)重的) storms, droughts, famines, the _ (傳播傳播) of diseases, and the _of species.(物種的滅絕物種的滅絕) themegallery_ _ _ _, there are those, like scientist George Hambley, who believe that we should not worry about high l

28、evels of carbon dioxide in the air and that some scientists _ (關(guān)注關(guān)注) about global warming are just _ (推測推測). He predicts that any warming will be _ (溫溫和的和的) with few bad environmental _ (結(jié)果結(jié)果). In fact, he _ (陳述陳述), “More Co2 is actually a positive thing. It will make plants grow faster; crops will

29、produce more; it will encourage a greater _ (范圍范圍) of animalsall of which will make life for human being better.” themegalleryListen and fill in the blanks. Greenhouse gases continue to _ _(聚聚集集) in the atmosphere. Even if we start reducing the amount of Co2 and other _ _ (溫室氣體溫室氣體) the climate is g

30、oing to _ _ (繼續(xù)繼續(xù)) warming for_ (幾十年幾十年) or centuries. No one knows _. (沒有人知道全球變暖會帶來什么樣的影響。沒有人知道全球變暖會帶來什么樣的影響。)Does that mean we should do nothing? Or, are the _ (風(fēng)險風(fēng)險) too great? themegalleryTranslate the following words into English: themegalleryTranslate the following phrases into English: themeg

31、alleryaused this global warming. It was a scientist called Charles Keeling who made accurate measurements . It is the burning of more and more fossil fuels that is resulting in this increase in carbon dioxide. Understand the following sentences:themegallery Some byproducts of this process are called

32、 “greenhouse” gases, the most important one being carbon dioxide. No one knows what the effects of global warming will be. Does that mean we should do nothing? Or, are the risks too great? Understand the following sentences:themegalleryWe should do nothing about global warming.themegalleryLOGOthemeg

33、alleryLOGOthemegalleryLanguage studythemegallery1. matter 要緊、有關(guān)系，要緊、有關(guān)系，= be importantIt doesnt matter if I miss the train because theres another one in ten minutes.It is what you do rather than what you say that matters.themegallery2. comparev compare to 也可用也可用compare with 用于比較不用于比較不同事物同事物.vTheir p

34、rices are low compared to those in other shops.v用法比較用法比較:vcompare A with B 把把 和和 相比。相比。vResearchers compared living conditions in London with those in other cities.vcompare A to B 把把 比成比成 ，比較兩者的相似之，比較兩者的相似之處。處。vPoets like to compare death to sleep.themegallery1)The town has changed a lot _ what it w

35、as before.2) We often _ young people _ the rising sun.3) _ this _ that , and youll see which is pared to/withcomparedtoComparewiththemegallery 3e about 1.How has this come about and does it matter?2.你能告訴我事情是怎樣發(fā)生的嗎？你能告訴我事情是怎樣發(fā)生的嗎？3.With the use of electricity, great changes have come about.這是如何發(fā)生的，是否

36、要緊這是如何發(fā)生的，是否要緊?Can you tell me how the accident came about? 隨著電的使用，種種大變化發(fā)生了。隨著電的使用，種種大變化發(fā)生了。themegallerycome aboutcome acrosscome roundcome into beingcome into effectcome outcome down to earth發(fā)生發(fā)生偶然碰到偶然碰到,找到找到來訪來訪, 蘇醒蘇醒出現(xiàn)出現(xiàn), 產(chǎn)生產(chǎn)生開始生效開始生效出版出版;長出長出;顯出顯出回到現(xiàn)實中來回到現(xiàn)實中來themegallery4.There is no doubt that

37、the earth is becoming warmer but there is fierce debate over whether it is human activity that has caused this global warming or whether it is just a natural phenomenon.“There is no doubtbut there is fierce debate”是主是主句，是一個并列句；句，是一個并列句； “There is no doubt”分句中的分句中的“that ”是同位語從句，是同位語從句， “but there is

38、fierce debate”分句中有兩個由分句中有兩個由whether 引導(dǎo)的賓語從句。作引導(dǎo)的賓語從句。作介詞介詞over的賓語，第一個賓語從句中又有一個強調(diào)句的賓語，第一個賓語從句中又有一個強調(diào)句型型.themegalleryUseful StructureThere is no need 沒有必要沒有必要There is no question 是沒有問題的是沒有問題的There is no reason 沒有理由沒有理由There is no possibility that 是沒有可能的是沒有可能的There is no knowing/telling 沒法知道沒法知道/說說It i

39、s a/no wonder that 真奇怪真奇怪/真令人吃驚真令人吃驚It is no use/good thatIt is no use/good doing sththemegallery_ was no _ that he was a fine scholar. A. There; doubt B. It; doubt C. There; wonder D. It; question2. _ no knowing what he could do. He might get a job tomorrow. He might stay out of work for weeks. A.

40、There is B. It is C. There was D. It wasthemegallery. Some byproducts of this progress are called “greenhouse” gases, the most important one being carbon dioxide.在這一過程中產(chǎn)生的許多副產(chǎn)品被叫做溫室氣體，最重要的是在這一過程中產(chǎn)生的許多副產(chǎn)品被叫做溫室氣體，最重要的是二氧化碳。二氧化碳。是一個獨立主格結(jié)構(gòu)，其基本結(jié)構(gòu)是：是一個獨立主格結(jié)構(gòu)，其基本結(jié)構(gòu)是： 名詞（代詞）名詞（代詞）+ + 現(xiàn)在分詞現(xiàn)在分詞/ /過去分詞過去分詞/ /不

41、定式不定式/ /形容詞形容詞/ /副詞副詞themegalleryEg. _(時間允許的話時間允許的話)，I will show you around the city._(今天是星期天今天是星期天)，I dont have to go to work._(沒有人要說的沒有人要說的話話)，the meeting was closed. =If time permits=Because today is Sunday=As nobody had any more to sayTime permittingToday being SundayNobody having any more to sa

42、ythemegallery.This is when small amounts of gases in the atmosphere, like carbon dioxide, methane and water vapour, trap heat from the sun and therefore warm the earth. 這是當(dāng)空氣中的少量氣體像二氧化碳、甲烷和水蒸氣將太陽這是當(dāng)空氣中的少量氣體像二氧化碳、甲烷和水蒸氣將太陽的熱量保存住而散發(fā)不出去時，因此就使地球變暖。的熱量保存住而散發(fā)不出去時，因此就使地球變暖。when 引導(dǎo)表語從句引導(dǎo)表語從句themegallery.qua

43、ntity n.(u)數(shù)量數(shù)量He prefers quantity to quality when food isconcerned.詞義拓展詞義拓展quantity n.(c )數(shù)量數(shù)量 The police found a large quantity of illegal drugs.Quantities of books were on the desk.themegalleryAs a result of destroying the forest, a large _ of desert _ covered the land. A. number; has B. quantity

44、; has C. number; have D. quantity; have2.Every day large quantities of water _ into rivers without being cleaned. A. is poured B. is pouring C. are poured D. are pouring themegallery 可數(shù)名詞可數(shù)名詞和和不可數(shù)名詞不可數(shù)名詞均可修飾：均可修飾：lots of = a lot of a quantity of = quantities of a mass of = masses of , plenty of只修飾只修

45、飾可數(shù)名詞：可數(shù)名詞：many, a great/large number of = large numbers of, a good/great many, scores of, dozens of只修飾只修飾不可數(shù)名詞：不可數(shù)名詞：much, a great/large amount ofa great/good deal ofthemegallery8.The increased amount of carbon dioxide means that more heat energy is trapped in the atmosphere causing the global temp

46、erature to go up.二氧化碳量的增加意味著更多的熱能滯留在大氣中，二氧化碳量的增加意味著更多的熱能滯留在大氣中，結(jié)果造成地球溫度的上升。結(jié)果造成地球溫度的上升。主句是主句是 “The increased amount of carbon dioxide means”; that 引導(dǎo)的是賓語從句，其引導(dǎo)的是賓語從句，其中的分詞短語中的分詞短語 “causing the global temperature to go up”作結(jié)果狀語。作結(jié)果狀語。themegallery the amount of +不可數(shù)名詞不可數(shù)名詞the number of +可數(shù)名詞可數(shù)名詞e.g.Wh

47、at are you going to do with the amountof money?themegallery result in 產(chǎn)生，導(dǎo)致產(chǎn)生，導(dǎo)致 （lead to, cause sth to happen) result from 由由引起，產(chǎn)生引起，產(chǎn)生 ( lie in, occur as a result of/because of )The accident resulted _ the drivers carelessness, which resulted _ the death of two passengers.fromin9.themegallery1.The

48、 experiment _ the discovery of a cure for cancer. A. resulted in B. lead to C. resulted from D. was caused by2. He slipped and broke his leg. _, he will have to be away from school for two or three months. A. Resulting in B. With the result that C. As a result D. The result is thatthemegallery 同義表達(dá)同

49、義表達(dá) His sickness was caused by eating too much.His sickness _ _ eating too much.He was ill _ he had too much.He was ill _ _ eating too much._ _ _ _ eating too much, he was ill.Eating too much _ _ his illness.Eating too much _ _ his illness.1. He had too much. _ _ _, he was ill.resulted frombecause b

50、ecause ofAs a result of resulted inled toas a result themegalleryOn the other hand, there are those, like scientists George Hambley, who believe that we should not worry about high levels of carbon dioxide in the air and that some scientists concerns about global warming are just speculation.主句是主句是

51、“there are those”, “l(fā)ike scientists George Hambley”是介詞短語作定語，是介詞短語作定語， “who believe that”are just speculation”是非限制性定語從句，都修飾是非限制性定語從句，都修飾those; believe后有兩后有兩個賓語從句，都由個賓語從句，都由that 引導(dǎo)。引導(dǎo)。on the other hand, 介詞短語作狀語介詞短語作狀語從句，修飾全句。從句，修飾全句。10.themegalleryrange n. 范圍、排列；范圍、排列； v. 排列、安置；漫游；在某范圍內(nèi)變化；排列、安置；漫游；在某范

52、圍內(nèi)變化； 常用短語：常用短語：a range of 一系列的一系列的 in range 在射程內(nèi)在射程內(nèi) out of range 在射程外在射程外 beyond the range of 超越超越范圍范圍 out of ones range 某人達(dá)不到的某人達(dá)不到的11.themegalleryChina is a country with a wide range of temperature.2. There is _（一系列的活動）一系列的活動） for children.3. Most of the students entering the competition are _（在

53、（在17至至20歲的范圍內(nèi)）歲的范圍內(nèi)）.4. The dog stayed well _ _( (離孩子們遠(yuǎn)遠(yuǎn)的離孩子們遠(yuǎn)遠(yuǎn)的) ). . a range of activities in the 17 20 age range out of range of the 中國是一個氣溫變化很大的國家。中國是一個氣溫變化很大的國家。childrenLOGOthemegalleryPre-listening:Read Exercise 1 together: Read the statements below and tick the ones you agree with.fossil fuel

54、s; renewable; nuclear powerWhat are the meaning of the following words ?Chernobyl 切爾諾貝利切爾諾貝利 （蘇聯(lián)烏克蘭北部（蘇聯(lián)烏克蘭北部城市）城市）themegalleryFirst Listening Well have to stop using fossil fuels. About 90% of the worlds energy comes from fossil fuels. We can replace fossil fuels with renewable sources of energy. N

55、uclear power is a good source of energy. In the future, well need new technologies to replace fossil fuels. Its the developed countries who are to blame for producing and most of the carbon dioxide.Not agree Second listening: Listen again and tick the phrases that Professor Chen uses to agree or dis

56、agree with Li Bin.Exactly. Im afraid I disagree with you.Thats true. Im afraid not.Thats right. I dont think so.Thats correct. No way.I agree. I dont agree. XXXXThird listening: fill in sentences by filling the following blanks: Our modern _ societies depend on the energy we get from_. Its a very _

57、and cheap form of energy. Cant we just _ fossil fuels with _ sources of energy like sun or wind power? However, whatever we do, we have to do it as a _. The _ countries are really the ones to _.Third listening: fill in sentences by filling the following blanks: Our modern _ societies depend on the e

58、nergy we get from_. Its a very _ and cheap form of energy. Cant we just _ fossil fuels with _ sources of energy like sun or wind power? However, whatever we do, we have to do it as a _. The _ countries are really the ones to _.industrialfossil fuelsconcentratedreplacerenewableglobal communitydevelop

59、edblamethemegalleryListening Sources of energyFormsRenewable or notFossil fuelNuclear powerCoal, gas, oilUraniumNon-renewableNon-renewablethemegalleryAgree or Disagree?Professor Chen: Whatever we do, we have to do it as a global community. That means developed and developing countries will have to w

60、ork together.Li Bin: But its not the developing countries who put most of the carbon dioxide into the air. The developed countries are really the ones to blame.themegalleryHomework Write down your idea of the last discussion: Do you agree with Professor Chens opinion or Li Bins? Preview the reading