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[originaltext]W: What does the term "alternative energy source" mean?M: When w
[originaltext]W: What does the term "alternative energy source" mean?M: When w
游客
2023-08-04
26
管理
问题
W: What does the term "alternative energy source" mean?
M: When we think of energy or fuel for our homes and cars, we think of petroleum—a fossil fuel processed from oil removed from the ground, of which there is a limited supply. But alternative fuels can be many things. Wind, sun and water can all be used to create fuel.
W: Is the threat of running out of petroleum real?
M: It has taken thousands of years to create the natural stores of petroleum we have now. We are using what is available at a much faster rate than it has been produced over time. The real controversy surrounding the amounts of petroleum we have is how much we need to keep in reserve for future use. Most experts agree that by around 2025, the amount of petroleum we use will reach a peak. Then production and availability will begin to seriously decline. This is not to say there will be no petroleum at this point. But it’ll become very difficult and therefore expensive to extract.
W: Is that the most important reason to develop alternative fuel and energy sources?
M: There’re two very clear reasons to do so. One is that whether we have 60 or 600 years of fossil fuels left, we have to find other fuel sources eventually. So the sooner we start, the better off we will be. The other big argument is that when you burn fossil fuels, you release substances trapped in the ground for a long time, which leads to some long-term negative effects, like global warming and greenhouse effect.
5.What do we usually refer to when we talk about energy according to the man?
6.What do most experts agree on according to the man?
7.What does the man think we should do now?
8. How do fossil fuels affect the environment?
选项
A、They release harmful substances when they are burned.
B、They dissolve in the water and cause a waste of water.
C、They release poisonous gas and lead to pollution.
D、They are burned inefficiently resulting in a waste of resources.
答案
A
解析
在对话中男士提到,当你燃烧矿物燃料时,会释放很多物质,这些物质已经在地下存在了很长一段时间,而这会导致一些长期的负面影响。由此可知,在燃烧矿物燃料时会释放出有害物质,故选项A正确。释放有害物质并不等同于释放有毒气体,所以C项可排除。B、D两项对话内容并未提及,应排除。
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