炎德英才大联考·长沙市一中2024届高三月考试卷(二)2英语答案

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are produced by companies.for which they receiveDwitt And thenupupthe olltiOn top of thatreremovdater may mplyend up eewhereuierSomeaesetemitoASin drinking waterut eedtoplay a major role in dealing with such a widespread problem.28.What does the underlined word "contaminants"in paragraph 2 refer to?A.Compounds that exist in soil.B.Things that make something impure.C.Chemicals that make polluted water pure.D.Glasses of water that contains poisonous chemicals.29.Why are PFASs called "forever chemicals"?A.They have been existing on the earth for centuries.B.There are no effective methods of detecting and reducing them.C.Companies have been producing them for considerable profits.D.Their strong carbon-fluorine bond stops them from breaking down.30.What is the main purpose of paragraph 3?A.To introduce the origin of PFASs.B.To stress that PFASs exist in the human body.C.To warn that PFASs are influencing public health.D.To analyze the relationship between PFASs and Americans.31.Who should mainly be responsible for dealing with PFASs pollution problem according toDeitt?A.All taxpayers.B.The federal government.C.The municipal authorities.D.The companies producing PFASs.DIt sounds like science fiction:giant solar power stations floating in space that beam downenormous amounts of energy to the Earth.And for a long time,the concept-first developedby the Russian scientist,Konstantin Tsiolkovsky,in the 1920s-was mainly an inspiration forwriters.A century later,however,scientists are making huge strides in turning the conceptinto reality.Climate change is the greatest challenge of our time,so there's a lot at risk.From risingglobal temperatures to shifting weather patterns,the impacts of climate change are alreadybeing felt around the globe.Overcoming this challenge will require thorough changes to howwe generate and consume energy.A space-based solar power station could orbit to face theSun 24 hours a day.The Earth's atmosphere also absorbs and reflects some of the Sun's light,so solar cells above the atmosphere will receive more sunlight and produce more energy.But one of the key challenges to overcome is how to assemble,launch and deploy (such large structures.A single solar power station may have to be as much as 10 kilometressquared in area-equals to 1,400 football pitches.Using lightweight materials will also becritical,as the biggest expense will be the cost of launching the station into space on a rocket.One proposed solution is to develop a group of thousands of smaller satellites that will cometogether and form a single,large solar generator.7Recently,developments in manufacturing,such as 3D printing,are also being looked atfor this application.At the University of Liverpool,we are exploring new manufacturingtechniques for printing solar cells on to solar sails.A solar sail is a foldable,lightweight andhighly reflective membrane (capable of using the effect of the Sun's radiation pressureeraf ordur fuel,We re ering howtoREDMI NOTE10BRO考联联卷·英语卷（四）第5页（共8页）(QG】