题目内容
Nuclear energy has always been controversial. But since the tsunami and nuclear disaster in Fukushima (Japan) last year the issue is back in the headlines. And the world is divided— some countries are planning more nuclear plants, while others have promised to shut theirs down.
After Fukushima, Germany decided to switch off all its nuclear plants by 2022. Switzerland and Italy are also phasing out nuclear power. But France and the United States remain staunch supporters of atomic energy. In fact, almost 80% of France’s electricity comes from nuclear power, the highest percentage in the world. And in the US, the Obama administration said it “continues to support the expansion of nuclear power, despite the crisis in Japan.”
Nuclear supporters claim nuclear power can help the environment. Unlike fossil fuels, nuclear power doesn’t create greenhouse gases. So, pro-nuclear countries argue that nuclear power allows them to generate energy without contributing to climate change. Britain’s chief scientific adviser (John Beddington) supports this view. He recently said that the world doesn’t have the luxury of ignoring nuclear energy.
Nuclear power is also relatively cheap. Renewable energy sources such as solar, hydro and wind power may be clean, but they’re expensive; and right now, they require a lot of investment. This higher cost of using “green energy” is usually passed onto the consumer. So, while many people may prefer their energy to come from a renewable source, not so many are prepared to pay higher energy bills. This is of particular concern while the world economy is in such bad shape.
The main argument against nuclear energy is that it isn’t safe. For a start, nuclear waste is very difficult to dispose of, and remains toxic to humans for thousands of years. And even before Fukushima, there were several high-profile nuclear disasters. The most famous is probably the 1986 Chernobyl disaster, in the Ukraine. The radiation from the meltdown spread all over Europe, affecting thousands.
The nuclear energy issue is very complex. And it doesn’t look like it’ll be resolved anytime soon. As a Japanese commentator recently said, “it’s been a bad year for the ‘nuclear village’, but I don’t think they’re down and out yet.” The battle continues.
1.Which of the following may NOT be the advantage of nuclear energy over other energy sources?
A.Nuclear energy doesn’t produce any greenhouse gases. |
B.Nuclear energy can help prevent the climate damage. |
C.Nuclear energy is more environmental-friendly than other green energy sources. |
D.Nuclear energy can save the consumers some money, compared to other renewable energies. |
2.What does the underlined word “this” refer to in paragraph 4?
A.The fact that many people prefer to use the green energy sources while unwilling to pay higher bill. |
B.The cost of using renewable sources |
C.The fact that the nuclear power is cheaper. |
D.The investment of renewable energy sources |
3.We can learn from the last paragraph that _______.
A.the Japanese commentator is positive about the future of nuclear energy |
B.the nuclear energy issue will be soon settled |
C.a battle will break out in the future |
D.Japan is considering to build a nuclear village in the future |
4.What is the author’s purpose of writing the passage?
A.To highlight the danger of using nuclear energy. |
B.To introduce some serious nuclear disasters. |
C.To show the argument between nuclear supporters and protesters. |
D.To give some advice on how to use nuclear energy safely. |
1.C
2.B
3.A
4.C
【解析】自从日本核泄漏以来,世界上有很多的争论,文章客观的向读者展现了这一问题。
1.细节题。根据文章第3段可知AB是核能的优势,第4段可知D也是优势。C项表述错误,核能并不必绿色能源环保。
2.考查代词。这里的this指代上文提及的This higher cost of using “green energy”,指这种高成本会被加到消费者身上。
3.推理题。根据最后一段的I don’t think they’re down and out yet.”说明这个人对核能的前景是乐观的。
4.写作意图题。文章客观的向我们解释了人们对于核能的争论。
We’ve heard about radiation from the damaged nuclear reactors in Japan reaching American shores. Experts say so far there is no reason to worry, and point out that we meet radiation every day. Where and how? NPR’s Renee Montagne posed that question to Peter Caracappa, a radiation safety officer and professor of nuclear engineering.
MONTAGNE: How many things emit radiation?
Dr CARACAPPA: Well, radiation and radioactive material is a part of nature. So everything that’s living has some amount of radiation coming from it—a very small amout. Plus there’s radiation in the ground and the air.
So the extremes are uranium in the soil to bananas?
Yes.
By the way, why do bananas have radiation?
Bananas have a lot of potassium(钾). And a small amount of potassium naturally is called potassium 40, which is radioactive
What’s the difference between radiation that’s harmful and not harmful?
Well, the term radiation can apply to a lot of different things. But the harmful radiation is ionizing(离子)radiation. It has enough energy that it can make chemical changes in material. We could get ionizing radiation from an X-ray, for example. It’s the kind of radiation that causes cancer.
The broader definition of radiation includes a lot of things that we call non-ionizing radiation. That includes everything like radio waves and visible light and your microwave.
So what then is the largest contributor of ionizing radiation?
For the natural sources of ionizing radiation, actually the biggest chunk of that tends to come from radon(氡), which is a radioactive material that is present in the air. It can become a concern when it builds up in low-lying areas of homes like basements.
Would it be fair to say that most people do not need to worry about the danger of being exposed to radiation?
I would say that the everyday exposure to radioation that we meet contributes an extremely tiny risk to our life or to our health compared to all of the other risks that we meet in our day-to-day life.
1.We can infer from the first paragraph that radiation is______.
A.rare |
B.powerful |
C.dangerous |
D.common |
2.The passage may be _______.
A.an interview |
B.an argument |
C.a talk show program |
D.a science report |
3.Whether radiation is harmful or not depends on______.
A.whether it has a small amount of potassium |
B.whether it changes chemical in materials. |
C.whether it has energy to change materials |
D.whether it is visible in life |
4.The purpose of writing this passage is to _______.
A.advise on how to protect us from radiation |
B.analyze what causes radiation in daily life |
C.warn people of the danger of radiation |
D.expect people not to fear everyday radiation |