题目内容
SECTION B INTERVIEW
Directions: In this section you will hear everything ONCE ONLY. Listen carefully and then answer the questions that follow. Questions 1 to 5 are based on an interview. At the end of the interview you will be given 10 seconds to answer each of the following five questions.
Now listen to the interview.
听力原文：Stan: Hi, Camellia. Have you attended Professor Gabriel's lecture？
Camellia: No. What was it about？
Start: Energy -- energy future and today.
Camellia: Oh, what a pity. You know, I'm writing a paper on this subject. And I have spent a lot of time collecting materials. I shouldn't have missed this chance.
Stan: Don't worry. I made a lot of notes. You can take my notebook and have a look.
Camellia: It's very kind of you... (open the notebook)... mmm... but it seems... mmm... that you have written hastily and some parts are not...
Stan: That's true. The lecture is magnificent, so I tried to write down all the things... mmm... never mind. I'm free now and I can tell you what I can remember.
Camellia: Oh, thank you. You're really a great friend.
Stan: OK. The professor began with the alternative energy. He said there is a great deal of information and enthusiasm about the development and increased production for the global energy needs from alternative energy sources.
Camellia: I know that solar energy, wind power and moving water are all sources of alter native energy.
Stan: And they are progressing. It makes many people believe that our future energy demands will easily be met.
Camellia: It's not so？
Stan: According to the professor, absolutely not. We often mention alternative energy to refer to those energy that is produced from sources other than our primary energy supply: fossil fuels--coal, oil and natural gas. The problem is, fossil fuels are non-renewable.
Camellia: Yes, you know, fossil fuels were formed from plants and animals that lived hundreds of millions of years ago. So there would be another hundreds of mil lions of years to reproduce.
Stan: They are limited in supply and we have mostly depended on them for our energy needs, from home heating and electricity to fuel for our automobiles and mass transportation. They will one day be used up. There is no escaping this conclusion.
Camellia: How about nuclear energy？ Isn't it a potential source of energy？
Stan: The professor said nuclear energy, which is primarily generated by splitting atoms, only provides 6% of the world's energy supplies. And it is not likely to be a major source of world energy consumption because of public pressure and the relative dangers associated with unleashing the power of the atom.
Camellia: Did the professor give any information about how much fossil energies provide？
Stan: Let me see… ah, yes, that's nearly 88% of the world's energy needs, or about 350 quadrillion British Thermal Units--or BTUs. The total world energy demand is about 400 quadrillion BTUs -- each year. A BTU is roughly equal to the energy and heat generated by a match. Of this amount oil, coal and natural gas supply, oil is the king, providing about 41% of the world's total energy supplies, or about 164 quadrillion BTUs. Coal provides 24% of the world's energy, or 96 quadrillion BTUs, and natural gas provides the remaining 22%, or 88 quadrillion BTUs.
Camellia: Just how limited are our fossil fuel reserves？
Stan: Some estimates say our fossil fuel reserves will be used up within 50 years, while others say it will be 100--120 years.
Camellia: It's terrible. We are going to run out of fossil fuels for energy and we have no choice but to prepare for the new age of energy production since, most certainly, human demands for energy will not decrease.
Stan: Nobody really knows when the last drop of oil, lump of coal or cubic foot of natural gas will be collected from the Earth. All of it will depend on how well we manage our energy demands and how well we can develop and use
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