题目内容
12.A.The comparison between renewable energy and nuclear energy B.The benefits and risks of using nuclear energy C.The reason for keeping nuclear power D.The panic caused by the leak of radiation E.The main energy source and its problems F.An ideal energy and the proportion it accounts for |
One of the consequences of the terrible earthquake and tsunami in Japan on 11March was,of course,a leak of radiation at the Fukushima nuclear power station on the country's east coast.Soon afterwards,all the people living within twenty kilometres of the plant were told to leave because of the danger from the radiation.
77.B
The pros and cons of nuclear power always come up in debates about how the world should produce the energy it needs.Those who think the risks are too great can obviously use Chernobyl-and now Fukushima-in their argument,while also pointing out that nuclear waste stays radioactive for hundreds of years,and asking what might happen if terrorists ever chose to attack a nuclear power plant.Those who support nuclear power point out that a very small amount of nuclear fuel can create a huge amount of energy,and that unlike the burning of fossil fuels such as oil,coal and natural gas,nuclear power stations don't contribute to global warming by pushing greenhouse gases into the atmosphere.
78.E
Most of the world's energy currently comes from fossil fuels,but this can't go on forever.As well as the problem of global warming there is the simple fact that the Earth has a limited amount of these resources.They will eventually run out-although there is a lot of disagreement about when that might be.
79.F
Apart from nuclear power,which currently provides less than 10% of the world's energy,the other alternative is energy from renewable sources.These include hydropower,biofuels (made mostly from crops),wind power and solar power,and together they currently provide around 15% of the world's energy.Some scientists think renewable energy is the great hope for the future-not only because it won't run out but also because it is less risky than nuclear power and produces far fewer greenhouse gases than burning fossil fuels.
80.C
Other scientists,however,believe we will never produce enough renewable energy to fill the gap when fossil fuels begin to run out.That is why,even while watching the very worrying events in Japan,they argue that nuclear power will always have to be part of the solution to the world's energy problems.
分析 短文通过三月十一日日本地震导致的核能源泄漏事件,说明了核能的优点以及危害,也说明了世界主要使用的能源以及其面临的危害,结尾表明有些科学家认为核能虽然有危害,但也是必要的一种能源.
解答 76-80 DBEFC
76.D 这一段主要讲了由于地震日本导致的核泄漏,政府要求居住在二十公里内的公民搬离,保证安全,因此其标题是"核辐射泄露引起的恐慌".
77.B 这一段主要讲了使用核能源的优点以及其带来的危害,故答案为B.
78.E 这一段讲的是世界上主要的能源来自于化石燃料,但其资源有限,因此主题为"主要的能源资源及其面临的问题".
79.F 这一段讲的是除了核能源之外的另外一种能源--可再生能源,说明了其优点是不会用尽,并说了其在世界能源所占的比例,故答案为F.
80.C 这一段表明了其他科学家的看法,认为虽然核能源有危害,但还是必不可少的,因此标题为"保留核能源的原因".
点评 对于这种概括段落主题的阅读题,首先要通读整段内容,接着对于段落中心思想进行总结,最后选出最合适的答案.

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