問題詳情

IV. Blank-Filling 20%There never really was a Biosphere 1. Actually, according to the folks originally behindBiosphere 2, they considered the earth and its environment to be Biosphere 1, and theirsprawling 3.15-acre glass-enclosed ecosystem in the Arizona desert was therefore Biosphere 2.Built in the late 1980s, the giant terrarium was ___31__ an engineering marvel. Coveredwith 6,500 plates of high-performance glass, the structure is airtight, with ___32___ airconditioners and heaters in constant operation to keep the interior environments stable. Thoseenvironments include a nearly 3,000-square-yard farm, a 2000-square-yard rainforest, an“ocean” with a coral reef, wetlands, grasslands and a desert. There was housing inside, since theoriginal intent was to ___33___ an effective system for space colonization.In an experiment , eight men and women shut themselves in on September 26, 1991, and___34___ on a two-year “voyage.” Things didn’t go well. The oxygen began to thin, eventuallyto a level ___35___ that of air at 18,000 feet of altitude. Two supplies of pure oxygen werepumped in from outside to keep the project going. While bananas in the rainforest did well,other crops failed, and each crew member’s diet was ___36___ to 1,750 calories per day. Beforea year was out, the group had split into two tense factions. The researchers endured the twoyears, but after they emerged, rail thin, details of their ____37____ became widely known. Theveneer of credibility, already bruised by allegations of tamper-prone data, secret food cachesand smuggled supplies, has cracked. The two-year experiment in ___38___ is starting to lookless like science and more like a $150 million stunt.That was then, this is now: After a sale of the facility, management was assigned, in 2007,to the University of Arizona, which will use the Biosphere 2 as a ___39___ to study climatechange and other environmental issues. The big glass folly has finally found its ____40_____.



(AB) ordeal (AC) embarked (AD) mammoth (AE) mission(BC) prospectively (BD) laboratory (BE) pioneer (CD) indisputably(CE) self-sufficiency (DE) reinforcing (ABC) restricted (ABD) approximating
31

參考答案

答案：C,D
難度：非常困難0
統計：A(0),B(0),C(0),D(0),E(0)

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