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Q1783274
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Ano: 2021 Banca: UEG Órgão: UEG Prova: UEG - 2021 - UEG - Processo Seletivo UEG |
Q1783274 Inglês
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Water on the Moon could sustain a lunar base

    Having dropped tantalizing hints days ago about an "exciting new discovery about the Moon", the US space agency has revealed conclusive evidence of water on our only natural satellite. And this "unambiguous detection of molecular water" will boost Nasa's hopes of establishing a lunar base.
    The aim is to sustain that base by tapping into the Moon's natural resources. The findings have been published as two papers in the journal Nature Astronomy. Unlike previous detections of water in permanently shadowed parts of lunar craters, scientists have now detected the molecule in sunlit regions of the Moon's surface.
    Speaking during a virtual teleconference, co-author Casey Honniball, postdoctoral fellow at Nasa's Goddard Space Flight Center in Maryland, said: "The amount of water is roughly equivalent to a 12-ounce bottle of water in a cubic metre of lunar soil." Her Nasa colleague Jacob Bleacher, from the agency's human exploration directorate, said researchers still needed to understand the nature of the watery deposits. This would help them determine how accessible they would be for future lunar explorers to use.
    And while there have previously been signs of water on the lunar surface, these new discoveries suggest it is more abundant than previously thought. "It gives us more options for potential water sources on the Moon," said Hannah Sargeant, a planetary scientist from the Open University in Milton Keynes, on BBC News.
    The first of these new discoveries was made from an airborne infrared telescope known as Sofia. This observatory, on board a modified Boeing 747, flies above much of Earth's atmosphere, giving a largely unobstructed view of the Solar System.
    Using this infrared telescope, researchers picked up the "signature" colour of water molecules. The researchers think it is stored in bubbles of lunar glass or between grains on the surface that protect it from the harsh environment. In the other study, scientists looked for permanently shadowed areas - known as cold traps - where water could be captured and remain permanently. They found these cold traps at both poles and concluded that approximately 40,000 kilometres squared of the lunar surface has the capacity to trap water.
    What does this discovery mean? According to Dr Sargeant this discovery mean that this could broaden the list of places where we might want to build a lunar base. There are quite a few one-off missions to the Moon's polar regions coming up in the next few years. In the longer term, there are plans to build a permanent habitation on the lunar surface.
    “We were going to go to the Moon anyway”, said the Open University researcher. This study gives Nasa some time to do some investigation, but it doesn't give it much time because and the US space agency is already working on Moon base ideas and where they are going to go and it is promising.
    Experts say that water-ice could form the basis of a future lunar economy, once we've figured out how to extract it. Definitely, it would be much cheaper to make rocket fuel on the Moon than send it from Earth. So when future lunar explorers want to return to Earth, or travel on to other destinations, they could turn the water into the hydrogen and oxygen commonly used to power space vehicles.
     Re-fuelling at the Moon could therefore bring down the cost of space travel and make a lunar base more affordable and a potential lunar settlement is on the way to become into a reality.

Disponível em: https://www.bbc.com/news/science-environment-54666328. Acesso em: 27 out. 2020.
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Alternativa correta: E - bring down the cost, na língua portuguesa, pode ser compreendido como “reduzir o preço”.

A questão aborda a compreensão de expressões idiomáticas e vocabulário específico em inglês, exigindo que o aluno saiba traduzir corretamente esses termos para o português no contexto fornecido. Vamos explicar a alternativa correta e as alternativas incorretas para que você entenda melhor:

Alternativa E: bring down the cost é corretamente traduzido como “reduzir o preço”. No contexto do texto, isso se refere a diminuir os custos de viagens espaciais através do reabastecimento na Lua. Portanto, essa alternativa está correta.

Alternativa A: to make a rocket fuel não pode ser compreendido como “montar uma estação espacial”. A tradução correta seria “fazer combustível para foguetes”. Portanto, essa alternativa está incorreta.

Alternativa B: sunlit regions não significa “regiões pouco aquecidas”, mas sim “regiões iluminadas pelo sol”. O texto menciona que a água foi detectada em áreas iluminadas da superfície lunar. Portanto, essa alternativa está incorreta.

Alternativa C: picked up the signature não significa “conferir as assinaturas”. Aqui, a expressão refere-se a detectar ou identificar a “assinatura” das moléculas de água. Portanto, essa alternativa está incorreta.

Alternativa D: harsh environment não significa “ambiente não explorado”, mas sim “ambiente hostil”. O contexto fala sobre as condições severas da superfície lunar. Portanto, essa alternativa está incorreta.

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(E)

(A) to make a rocket fuel-->Fazer um combustível de foguete

(B)sunlit regions-->regiões iluminadas pelo sol

(C)tpicked up the signature-->pegou a assinatura

(D)harsh enviroment-->ambiente pesado

(E)bring down the cost--->reduzir o custo 

custo = preço? ...

PMMG 2023 → Pertencerei

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