高中英语：unit 4 global warming warming up 课件 人教版选修6 （共119张）.

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 (粗体粗体)A title The main text is in 2 columns (栏栏), and has 2 graphs (图表图表) 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 _ _ (与与相比相比) most natural changes. So how has this _ _ (发生发生) and does it _ (起作用起作用) ? Earth Cares Sophie Armstrong explores these questions. themegalleryListen and fill

20、in the blanks. _ _ _ _ _ (毫无疑问毫无疑问) the earth is becoming warmer (see Graph1) but there is _ _ (激烈的争论激烈的争论) over whether it is human activity that has caused this global warming or whether it is just a _ _(自然现象自然现象). themegalleryListen and fill in the blanks. Many scientists believe that people have

21、 caused the _ (增长增长) in the earths temperature through the burning of fossil _ (燃料燃料) like coal, natural gas and oil to produce energy. Some _ (副产品副产品) 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 -_ _ (温室效应温室效应). 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 _ (意味着意味着) 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 _ _ (精确的统计精确的统计) 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 _ (数据数据). They

25、also believe _ _ the burning of more fossil fuels _ is _ _(导致导致) this increase in carbon dioxide. But there are some very different _ (态度态度) among scientists towards this _ (问题问题) . themegalleryListen and fill in the blanks. Dr Janice Foster says that over the next 100 years _ _ _(数量数量) 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 _ (灾难灾难), I would say. We cant predict the _ ( (气候气候) ) 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 _ (严重的严重的) storms, droughts, famines, the _ (传播传播) of diseases, and the _of species.(物种的灭绝物种的灭绝) 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 _ (关注关注) about global warming are just _ (推测推测). He predicts that any warming will be _ (温温和的和的) with few bad environmental _ (结果结果). In fact, he _ (陈述陈述), “More Co2 is actually a positive thing. It will make plants grow faster; crops will

29、produce more; it will encourage a greater _ (范围范围) 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 _ _ (温室气体温室气体) the climate is g

30、oing to _ _ (继续继续) warming for_ (几十年几十年) or centuries. No one knows _. (没有人知道全球变暖会带来什么样的影响。没有人知道全球变暖会带来什么样的影响。)Does that mean we should do nothing? Or, are the _ (风险风险) 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 要紧、有关系，要紧、有关系，= 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 用于比较不用于比较不同事物同事物.vTheir p

34、rices are low compared to those in other shops.v用法比较用法比较: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 ，比较两者的相似之，比较两者的相似之处。处。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.你能告诉我事情是怎样发生的吗？你能告诉我事情是怎样发生的吗？3.With the use of electricity, great changes have come about.这是如何发生的，是否

36、要紧这是如何发生的，是否要紧?Can you tell me how the accident came about? 随着电的使用，种种大变化发生了。随着电的使用，种种大变化发生了。themegallerycome aboutcome acrosscome roundcome into beingcome into effectcome outcome down to earth发生发生偶然碰到偶然碰到,找到找到来访来访, 苏醒苏醒出现出现, 产生产生开始生效开始生效出版出版;长出长出;显出显出回到现实中来回到现实中来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，是一个并列句；句，是一个并列句； “There is no doubt”分句中的分句中的“that ”是同位语从句，是同位语从句， “but there is

38、fierce debate”分句中有两个由分句中有两个由whether 引导的宾语从句。作引导的宾语从句。作介词介词over的宾语，第一个宾语从句中又有一个强调句的宾语，第一个宾语从句中又有一个强调句型型.themegalleryUseful StructureThere is no need 没有必要没有必要There is no question 是没有问题的是没有问题的There is no reason 没有理由没有理由There is no possibility that 是没有可能的是没有可能的There is no knowing/telling 没法知道没法知道/说说It i

39、s a/no wonder that 真奇怪真奇怪/真令人吃惊真令人吃惊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.在这一过程中产生的许多副产品被叫做温室气体，最重要的是在这一过程中产生的许多副产品被叫做温室气体，最重要的是二氧化碳。二氧化碳。是一个独立主格结构，其基本结构是：是一个独立主格结构，其基本结构是： 名词（代词）名词（代词）+ + 现在分词现在分词/ /过去分词过去分词/ /不

41、定式不定式/ /形容词形容词/ /副词副词themegalleryEg. _(时间允许的话时间允许的话)，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._(没有人要说的没有人要说的话话)，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. 这是当空气中的少量气体像二氧化碳、甲烷和水蒸气将太阳这是当空气中的少量气体像二氧化碳、甲烷和水蒸气将太阳的热量保存住而散发不出去时，因此就使地球变暖。的热量保存住而散发不出去时，因此就使地球变暖。when 引导表语从句引导表语从句themegallery.qua

43、ntity n.(u)数量数量He prefers quantity to quality when food isconcerned.词义拓展词义拓展quantity n.(c )数量数量 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 可数名词可数名词和和不可数名词不可数名词均可修饰：均可修饰：lots of = a lot of a quantity of = quantities of a mass of = masses of , plenty of只修饰只修

45、饰可数名词：可数名词：many, a great/large number of = large numbers of, a good/great many, scores of, dozens of只修饰只修饰不可数名词：不可数名词：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着更多的热能滞留在大气中，二氧化碳量的增加意味着更多的热能滞留在大气中，结果造成地球温度的上升。结果造成地球温度的上升。主句是主句是 “The increased amount of carbon dioxide means”; that 引导的是宾语从句，其引导的是宾语从句，其中的分词短语中的分词短语 “causing the global temperature to go up”作结果状语。作结果状语。themegallery the amount of +不可数名词不可数名词the number of +可数名词可数名词e.g.Wh

47、at are you going to do with the amountof money?themegallery result in 产生，导致产生，导致 （lead to, cause sth to happen) result from 由由引起，产生引起，产生 ( 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 同义表达同

49、义表达 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”, “like scientists George Hambley”是介词短语作定语，是介词短语作定语， “who believe that”are just speculation”是非限制性定语从句，都修饰是非限制性定语从句，都修饰those; believe后有两后有两个宾语从句，都由个宾语从句，都由that 引导。引导。on the other hand, 介词短语作状语介词短语作状语从句，修饰全句。从句，修饰全句。10.themegalleryrange n. 范围、排列；范围、排列； v. 排列、安置；漫游；在某范围内变化；排列、安置；漫游；在某范

52、围内变化； 常用短语：常用短语：a range of 一系列的一系列的 in range 在射程内在射程内 out of range 在射程外在射程外 beyond the range of 超越超越范围范围 out of ones range 某人达不到的某人达不到的11.themegalleryChina is a country with a wide range of temperature.2. There is _（一系列的活动）一系列的活动） for children.3. Most of the students entering the competition are _（在

53、（在17至至20岁的范围内）岁的范围内）.4. The dog stayed well _ _( (离孩子们远远的离孩子们远远的) ). . a range of activities in the 17 20 age range out of range of the 中国是一个气温变化很大的国家。中国是一个气温变化很大的国家。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 切尔诺贝利切尔诺贝利 （苏联乌克兰北部（苏联乌克兰北部城市）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