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CA recent study in the science publication Joule says there are enough rare earth metals(稀土金属)on Earth for new“low-carbon electricity generation”technologies.The researcherssaid the amount of minerals available is enough to supply a switch to renewable energy andmore mining is needed to make more of the valuable metals available to industry.Rare earth metals are in demand for products such as magnets,.wind turbines(涡轮机),solar panels and computers.All are part of the"green energy"push to remove carbon gasesZeke Hausfather,an expert who works at a technology company called Stripe and atfrom electricity generation.Berkeley Earth,called the process"ig and messy".But he thinks reducing carbon gases,or"decarbonization",can be done.He said he is not worried about the long-term supply of rareHowever,the scientists warn that in the early days of the switch to green energy,there willearth materials.be shortages.For example,there could be a shortage of the element called dysprosium.It isused to make strong magnets.Industry will require three times more of the metal than isproduced now.However,there is 12 times more dysprosium available than needed,theAnother element is tellurium,which is used in large groups of solar panels,called solarresearchers said.farms.There is just enough of that material available if the world makes a fast push to solarpower,the researchers said.In addition,there are other materials that can be used instead oftellurium if needed.Daniel Ibarra,an environment professor at Brown University,told the Associated Pressthat the study is forceful and"debunks"concerns about running out of rare earth materials.Hesaid the main question is whether production of the materials can keep up with demandThe United States Geological Survey reports that the countries with the largest supplies ofrare earth metals are China,Vietnam,Russia and Myanmar,also known as Burma.28.What is Zeke Hausfather's attitude towards the storage of rare earth metal?B.Skeptical.C.Uncertain.D.Indifferent.A.Confident.29.Dysprosium is mentioned in Paragraph 4 toDA.compare it with other elementsB.indicate its wide existence in natureC.stress its importance in industrial productionD.show its shortage in the early change to green energy30.The underlined word"debunk"in the sixth paragraph probably meansB.show something falseA.have doubt aboutprove something correctC.be certain aboutD,31.Which of the following can be the best title for the text?⑧BCA.Necessity of Mining for Renewable EnergyB.Concerns about Shortage of Rare Earth MetalsC.Rare Earth Metals Are Enough for Green EnergyD.Low-carbon Technologies Are Developing Fast英语试卷第5页(共10页)
