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1、官网网站： _1新新 SAT 官方指南阅读第五篇全解析官方指南阅读第五篇全解析Passage 1 is adapted from Michael Slezak, “Space mining：the Next Gold Rush?” C2013 by New Scientist.Passage 2 is from the editors of New Scientist, “Taming the Final Frontier.” C2013 by New Scientist.Passage 1Follow the money and you will end up in space. Thats
2、 the message from a first-of-its-kindforum on mining beyond Earth.Convened in Sydney by the Australian Centre for Space Engineering Research, the eventbrought together mining companies, robotics experts, lunar scientists, and government agenciesthat are all working to make space mining a reality.5Th
3、e forum comes hot on the heels of the 2012 unveiling of two private asteroid-mining firms.Planetary Resources of Washington says it will launch its first prospecting telescopes in two years,while Deep Space Industries of Virginia hopes to be harvesting metals from asteroids by 2020.Another commercia
4、l venture that sprung up in 2012, Golden Spike of Colorado, will be offeringtrips to the moon, including to potential lunar miners.10Within a few decades, these firms may be meeting earthly demands for precious metals,such as platinum and gold, and the rare earth elements vital for personal electron
5、ics, such asyttrium and lanthanum. But like the Gold rush pioneers who transformed the Western UnitedStates, the first space miners wont just enrich themselves. They also hope to build an off-planeteconomy free of any bonds with Earth, in which the materials extracted and processed from the15官网网站： _
6、2moon and asteroids are delivered for space-based projects.In this scenario, water mined fro other worlds could become the most desired commodity.“In the desert, whats worth more: a kilogram of gold or a kilogram of water?” asks Kris Zacny ofHoneyBee Robotics in New York. “Gold is useless. Water wil
7、l let you live.”Water ice from the moon s poles could be sent to astronauts on the International Space20Station for drinking or as a radiation shield. Splitting water into oxygen and hydrogen makesspacecraft fuel, so ice-rich asteroids could become interplanetary refueling stations.Companies are eye
8、ing the iron, silicon, and aluminium in lunar soil and asteroids, whichcould be used in 3D printers to make spare parts or machinery. Others want to turn space dirtinto concrete for landing pads, shelters, and roads.25Passage 2The motivation for deep-space travel is shifting from discovery to econom
9、ics. The past yearhas seen a flurry of proposals aimed at bringing celestial riches down to Earth. No doubt this willmake a few billionaires even wealthier, but we all stand to gain: the mineral bounty and spin-offtechnologies could enrich us all.But before the miners start firing up their rockets,
10、we should pause for thought. At first30glance, space mining seems to sidestep most environmental concerns: there is (probably!) no lifeon asteroids, and thus no habitats to trash. But its consequences-both here on Earth and inSpace-merit careful consideration.Part of this is about principles. Some w
11、ill argue that spaces “magnificent desolation” is notours to despoil, just as they argue that our own planets poles should remain pristine. Others will35suggest that glutting ourselves on spaces riches is not an acceptable alternative to developing官网网站： _3more sustainable ways of earthly life.Histor
12、y suggests that those will be hard lines to hold, and it may be difficult to persuade thepublic that such barren environments are worth preserving. After all, they exist in vastabundance, and even fewer people will experience them than have walked through Antarcticas40icy landscapes.Theres also the
13、emerging off-world economy to consider. The resources that are valuable inorbit and beyond may be very different to those we prize on Earth. Questions of theirrelationship have barely been broached-and the relevant legal and regulatory framework isfragmentary, to put it mildly.45Space miners, like t
14、heir earthly conterparts, are often reluctant to engage with suchquestions. One speaker at last weeks space-mining forum in Sydney, Australia, concluded with aplea that regulation should be avoided1. But miners have much to gain from a broad agreementon the for-profit exploitation of space. Without
15、consensus, claims will be disputed, investmentsrisky, and the gains made insecure. It is all of our long-term interest to seek one out.50官网网站： _442. In lines 6-10, the author of Passage 1 mentions several companies primarily to(A) note the technological advances that make space mining possible.(B) provide evidence of the growing interest in space mining.(C) emphasize the large profits to be made from space mining.(D) highlight the diverse ways to c
