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1、江西省2024八年级期末英语
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cooling material can be placed on the roof like solar panels(太阳能电池板).However,instead of turningsunlight into cnergy as solar panels do,the material turns heat into infrared radiation().Shanhui Fan is an electrical engincering professor at Stanford University.He says that the panelshave a kind of material that is like sand.The panels act like a mirror.They take heat out of buildings andreflect()the light from the sun.Both the heat and sunlight are sent 100 kilometers into outer space.The material doesn't get heated up by the sun because it can cool itself.So the panels are cool to thetouch,even in the sun.Researchers say they can reduce the indoor temperature to nearly 5 below thetemperature outside.Mr.Fan says it is like having a window into space.The heat is sent into space without warming theair.He also says buildings in developing countries that do not have air conditioning can usc the panels.Scientists say the big problem is developing an actual cooling system by using the high-techpanels.Nowadays,as much as 15%of the energy used in the United States is spent providing power to airconditioning systems.Scientists believe the cooling system can be developed in the next three to fiveyears.It can greatly help save the energy.()70.How can the new material cool the buildings?A.By placing it on the ground.B.By turning sunlight into energy.C.By using solar panels.D.By turning heat into infrared radiation.71.If it's 35C outside,it will be aboutin the building with the new panels.A.25℃B.30℃C.5℃D.40℃)72.What is the passage mainly about?A.A new kind of solar panel.B.A new kind of space material.C.A new kind of cooling materialD.A new kind of energy.请阅读下面的非连续性文本，根据语篇内容，回答问题。FLast week we asked the students in No.5 Middle School about their dream jobs.We asked 500students to take part in the survey.Here are the results.Percentage of Dream Jobs5045%40935%35%018%14%11%13%094%5%腿Other jobsEngineerTradergineerActorTeacherComputerThe teachers may feel happy to know that3%of the students hopetoteach in the future.They will八年级英语试题第9页（共10页）