B6Unit4Globalwarming-Listening[課件]

1、 Listening Speaking Listening and SpeakingI. Listen to the tape and answer and decide which statements Professor Keeling does NOT agree with. 1. We should stop depending on fossil fuels for our energy. 2. 90% of our energy comes from fossil fuels.3. We can replace fossil fuels with cleaner sources o

2、f energy.4. Nuclear power is a good source of energy.2. Listen to Part 1 again and tick the energy sources that are mentioned. Complete the notes on them.Sources of energyNotesFossil fuels Produce carbon dioxide cheap and concentrated form of energyWind powerEnergy from the sunNuclear power clean no

3、t very practical with present technology does not produce carbon dioxide dangerous clean not practical: need huge areas of land to provide enough energy3. Listen to Part 2 and the list three things we can do to save energy.First we must try to find ways to use fossil fuels that does not put carbon d

4、ioxide into the air.Second we must produce products that are economical with energy.Third we must ask people to cut down on the energy the use.4. Listen to part 2 again and fill in the blanks.LI BIN: What about _? They dont cut down on their use of _.energyfactoriesKEELING: No, they dont. However, t

5、hat is a _ we must work on as a _ community. That means _ and _countries will have to work blemglobaldevelopeddevelopingLI BIN: But its not the _ countries that put most of the carbon_ into the air. The developed countries are really the ones to _.developingdioxideblameNote: The USA is t

6、he largest energy user in the world and the largest producer of the greenhouse gas carbon dioxide. China comes second in both of these. Listening text China has been going through huge economic development, and has had as much growth in one decade as the industrial world experienced in nearly a cent

7、ury. However, it has been at a high cost to the environment. FOSSIL FUELS AND OTHER FORMS OF ENERGY Li Bin, a university student, is interviewing Professor Keeling on the local student radio station about the use of fossil fuels and other sources of energy.Part 1L: Professor Keeling, Ive read that w

8、e must stop using fossil fuels if we want to reduce the amount of carbon dioxide in the air.K: Yes, thats right, Li Bin. However its difficult. Our modern industrial societies depend on the energy we get from fossil fuels. Its a very cheap and concentrated form of energy. L: Is it true that about 90

9、% of the worlds energy comes from fossil fuels?K: Yes, thats correct. And there is enough to last for centuries.L: Could we replace fossil fuels with clear sources of energy like sun or wind power?K: Im afraid not. We just cant produce enough. You need huge areas of land to produce enough wind energ

10、y. The technology we have at present cannot provide enough sun energy. L: So what about nuclear power? That doesnt produce carbon dioxide.K: True, but its very dangerous. Remember the accident at Chernobyl. People are still dying of the radiation that was produced by THAT disaster! Part 2L: So what

11、can we do?K: Well, there are three things. First we must find ways of using fossil fuels that wont put carbon dioxide into the air. Second, we must produce products that are economical with energy. Third, we must ask people to cut down on the energy they use.L: But thats on a personal level. What ab

12、out factories? They dont cut down cut down their use of energy. K: No, they dont. However, that is a problem we must work on as a global community. That means developed and developing countries will have to work together.L: But its not the developing countries that put most of the carbon dioxide int

13、o the air. The developed countries are really the ones to blame.K: Thats true. So we must work together because global warming will affect everyone. If we want the future generations to have a good life, we must ALL look after the planet.Answer key for Exercise 2(P62):Questions to JulieHer answersWh

14、at is Millennium KidsWho started it? When?An organization by kids of kids; concerned with the environmentFour students in Australia; in 1996Why was it organizedWhat play did they perform last year?To draw attention to the environmentThe horse that Saved the WorldWhat was the purpose of performing th

15、e play?To explain why its better for the environment if we walk to school, ride bikes or go by busAnswer key for Exercise 3:Methods of saving energy:Buy energy-saving goodsTurn off appliances when not using themProjects that Millennium Kids have done:1 planted trees2 developed activities that reduce

16、, reuse and recycle waste3 planned ways to reduce recycle and reuse plastic bags MILLENNIUM KIDS Julie, a teenager who belongs to an organization in Australia called Millennium Kids is visiting a class. The teacher and students are asking her questions about the organization.Listening textPart 1T: H

17、ello Julie. Its so nice to see you here. Can you tell us aboutMillennium Kids?J: Sure. Its an organization run by kids for kids. Its concerned with the environment. S1: Julie, may I ask how it started?J: It was started by four Western Australian kids who organized a childrens conference on the envir

18、onment in 1996. Now we hold a conference every year. Kids come to it from all over Australia - and from other countries too. Its great fun. We discuss what weve done and decide what projects well do in the following year.S2: That sounds so interesting! What sorts of projects do you do?JULIE: Well, a

19、ll sorts. Last year we had a school project to help kids understand about global warming. Actually, we performed a play called The Horse that Saved the World. It taught kids not to travel to school so often by car. It explained why its so much better for the environment if we walk, ride a bike or go

20、 by bus. (murmurs of agreement).Part 2S2: Hey, I ride to school already! Is there anything else I can do? J: Oh, lots of things. You can encourage your parents to buy electrical goods that can save energy; you can wear a warm sweater instead of turning on the heating in cold weather; and you canturn

21、 off electrical appliances when you are not using them.S: Thanks for that. What other projects have you done? J: Weve planted trees and develop activities that reduce, reuse and recycle waste. This year were asking kids to think of ways to reduce, reuse and recycle plastic bags they are such a probl

22、em.S3: That sounds very interesting.T: Well, thank you, Julie. Millennium Kids certainly sounds like a good organization.J: Yes, its fun being a Millennium Kids. Its also important. If we dont care for the environment, we may not have a future. Thats a pretty good reason to do something, dont you th

23、ink? Answer key for Exercise 1 (P65)Part 1: How Ian Kierman began Clean-up Australia DayPart 2: Clean-up the World Day and Ian Kiermans contribution to improving the environmentAnswer key for Exercise 2 (P65)YearEventFacts about the event1987Ian Kiernan competed in a round-the-world yacht race He wa

24、s shocked at the pollution in the ocean. 1989Clean-up Day for Sydney Harbour 40,000 volunteers; collected old car bodies, plastics, glass bottles, cigarette butts 1990the first Clean Up Australia Day 300,000 volunteers 2001Clean Up Australia Day most common kinds of rubbish: cigarette butts, glass b

25、ottles and plastic bags 1993the first Clean Up the World Day 30 million volunteers in 80 countries 2001Clean Up the WorldDay 40 million volunteers in 128 countries; cleaned streets, beaches, river banks and parks CLEAN UP AUSTRALIA DAY Tom is giving a talk to his class about Clean Up Australia Day.P

26、art 1Today Im going to tell you about Clean Up Australia Day. Listening textIts one day of the year when people in Australia get together to clean up their local environment. It started in 1987, when Ian Kierman was competing in a round-the-world yacht race. When he was shocked during the race by th

27、e pollution he found on the oceans. There was rubbish floating everywhere. So when he got back to Sydney he decided to organize a clean-up day. He began with Sydney Harbour. In 1989 he got 40,000 volunteers to help him clean it up. They collected tonnes of old car bodies, plastics of all kinds, glas

28、s bottles and cigarette butts. It was so successful that Ian organized the first Clean Up Australia Day in 1990. This time more than 300,000 people offered to help and it was another success. Since then it has become a yearly event with more and more people coming to help. Heres a table showing the most common kinds of rubbish found in 2001 on Clean Up Australia Day. You can see that the top three are cigarette butts, glass bottles and plastic bags. We found that some of them could be recycled. In fact Clean Up Aust