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1、2024年衡水金卷先享题英语四
2、2024衡水金卷先享题分科综合卷英语二
3、2024衡水金卷分科综合卷英语
4、2024衡水金卷先享题全国卷二
5、2024衡水金卷先享题答案高三一轮英语
6、2023-2024衡水金卷先享题答案英语
7、衡水金卷先享题答案2024英语全国二卷
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9、衡水金卷先享题分科综合卷2024英语一答案
10、2024衡水金卷先享题答案英语二

下起点·做学微知0Housing ranks high among the numerous challenges that sfill necd to be overcom beforehumans can colonize()Mars.The brave pionecrs that make the six-month voyage to the RedPlanet will need a place to live in as soon as they land.While the best solution would be to have thestructures ready before they get there,it has so far bcen a challenge given that most constructionrobots have never made it out of the laboratory.Now,therc may be a bit of hope thanks toMassachusetts Institute of Technology's newly revealed Digital Construction Platform(DCP).The DCP compriscs a double arm system that is fitted on a tracked vehicle.As the larger armmoves,the smaller,precision motor robotic arm builds the structure by shooting out the necessaryconstruction material,ranging from insulation foam(绝缘泡沫)to concrete.The team ofresearchers led by Ph.D.Steven Keating say that unlike other 3-D printers that are limited tobuilding objects that fit within their overall enclosure,DCP's free moving systems can be used toconstruct structures of any size.The team recently demonstrated the DCP's building skills on an empty field in Mountain View,CA.The robot began by creating a mold with expanding foam that hardens when dry.It thenconstructed the building,layer by layer,using sensors to raise itself higher as it progressed.Thefinal product was a sturdy "home"that had 50-foot diameter walls and a 12-foot high roof withroom for essentials like electricity wires and water pipes to be inserted inside.Even moreimpressive?-It took-a mere 14-hours-to-"print"!The researchers'next plan is to make the DCP smart enough to analyze the environment wherethe structure is going to be built and determine the material densities best suited for the area.However,that's not even the best part.Future DCP models are going to be solar-powered,autonomous,and most importantly,capable of sourcing construction components from itssurroundingsThis means the robot can be sent to remote,disaster-stricken areas,and perhapsoven to Mars,to build shelters using whatever material is available.$2.What can-we.learn from the first paragraph?A.Colonizing Mars is a reality.B.Housing on Mars is the only problem.C.Finding a liveable place on Mars is a top priority.D.Building structures on Mars is in the testing phases.33.How does the DCP differ from other 3-D printers?A.It consumes less time.B.It has two arms that can move.C.It is more environmentally friendly.D.It can build more diverse structures.英语试题（雅礼版）第7页（共12页）