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Listening, Reading, Use of English. Klucz do odpowiedzi i punktacja
Typologia: Egzaminy
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Załadowany 26.08.2020
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IS STEPHEN HAWKING RIGHT ABOUT ALIENS? The hunt for intelligent species outside Earth may be a staple of literature and film — but it is happening in real life, too. Space probes are searching for planets outside our solar system, and astronomers are carefully listening for any messages coming to us through space. How incredible it would be to get confirmation that we are not alone in the universe, to finally speak to an alien race. Wouldn’t it? Well, no, according to the eminent physicist Stephen Hawking. “If aliens visited us, the outcome would be the same as when Columbus landed in America, which didn’t turn out well for the Native Americans,” Hawking says. He argues that, instead of trying to find and communicate with life in the cosmos, humans would be better off doing everything they can to avoid contact. Hawking believes that, based on the huge number of planets that scientists know must exist, we are not the only life form in the universe. There are, after all, billions and billions of stars in our galaxy alone, with, it is reasonable to expect, an even greater number of planets orbiting them. And it is not unreasonable to expect some of that alien life to be intelligent, and capable of interstellar communication. So, when someone with Hawking’s knowledge of the universe advises against contact, it’s worth listening, isn’t it? Seth Shostak, a senior astronomer at the SETI Institute in California, the world’s leading organization searching for signs of alien existence, is not so sure. “This is an unwarranted fear,” Shostak says. “If their interest in our planet is for something valuable that our planet has to offer, there’s no particular reason to worry about them now. If they’re interested in resources, they have ways of finding rocky planets that don’t depend on whether we broadcast or not. They could have found us a billion years ago.” If we were really worried about letting aliens know we were here, Shostak says, the first thing to do would be to shut down the BBC, NBC, CBS and the radars at all airports. Those broadcasts have been sending messages into space for years — the oldest is already more than 80 light years from Earth — so it is already too late to stop aliens watching our TV programmes. There are lots of practical problems involved in hunting for aliens, of course, chief among them being distance. If our nearest neighbours were life forms on the (fictional) moon of Endor, 1,000 light years away, it would take a millennium for us to receive any message they might send. If the Endorians were watching us, the
light reaching them from Earth at this very moment would show them our planet as it was 1,000 years ago; in Europe that means lots of fighting between knights around castles and, in north America, small bands of natives living on the great plains. It is not a timescale that allows for a quick conversation — and, anyway, they might not be communicating in our direction. The lack of a signal from ET has not, however, prevented astronomers and biologists (not to mention film-makers) from coming up with a whole range of ideas about what aliens might be like. In the early days of SETI, astronomers focused on the search for planets like ours — the idea being that, since the only biology we know about is our own, we might as well assume aliens are going to be something like us. But there’s no reason why that should be true. You don’t even need to step off the Earth to find life that is radically different from our common experience of it. Extremophiles are species that can survive in places that would quickly kill humans and other normal life- forms. These single-celled creatures have been found in boiling hot jets of water that come through the ocean floor, or at temperatures well below the freezing point of water. The front ends of some creatures that live near deep-sea jets are 200°C warmer than their back ends. On Earth, life exists in water and on land but, on a giant gas planet, for example, it might exist high in the atmosphere, eating food from the air swirling around it. And, as aliens would be so different from us, guessing their motives and intentions if they ever got in touch seems to be something that even Hawking cannot explain. Paul Davies, an astrophysicist at Arizona State University argues that alien brains, with their different architecture, would interpret information very differently from ours. “Lots of people think that because they would be so wise and knowledgeable , they would be peaceful,” adds Stewart. “I don’t think you can say that. I don’t think you can put human views onto them; that’s a dangerous way of thinking. Aliens are alien. If they exist at all, we cannot simply believe they’re the same as us.”
A knowing a lot about different things B stop someone from doing something C allow somebody to do something D move quickly in circles E reason F result G important, respected and admired
A = Lilian Daniels B = Moira Wilkins C = Daniel Long D = Dr Thomas Harley E = Susan Dickson
42. gift A present B natural ability C luck
I Ann : At two o’clock last night I (51) (wake) ........ up by my neighbour playing loud music. What would you have done in my position? Bob : I (52) (go) ........ round to his house and asked him (53) (turn) ........ it down explaining that it (54) (be) ........ the middle of the night. II Nick was alone at home. Outside it was dark and stormy. He (55) (watch) ........ TV when he heard something in the upstairs room. He listened carefully and, yes, there was something up there. 'I wish my parents (56) (not, go) ........ to the cinema,' he thought. III Some thieves (57) ........ (break) into my house yesterday. They (58) ........ (must, get) in through the window which I (59) ........ (leave) open. Unfortunately, none of my neighbours saw anything (60) ........ (happen).
A positively B cycle C will D environment E effective F mention G analyse H well I feelings J used K good L physical Stress is a term often 61 ........ in relation to studying – what with exam pressure, assignments, seminar presentations, deadlines, extensions, pressure on computer facilities and so on? Not to 62 ........ juggling studying with a social life or feelings of isolation and loneliness for lack of a social life. Then there can also be out-of-control debts, poor housing, overcrowding, noise, and adjusting to life in a new 63 ........ or country. The key to success is to think 64 ....... ; take control of your stress and anxiety by learning 65 ........ techniques to combat it. Be kind to yourself and give yourself ‘me time’ in which you can choose what you want to do. Take proper breaks and eat 66 ......... Moreover, 67 ........ problems carefully, don’t just avoid them and hope that they will go away. Talk things through with someone else if necessary. Think about and then organise yourself to take on some form of 68 ........ activity and enjoy the ‘feel-good factor’ that the resulting release of endorphins gives you. Walk, 69 ........, run, swim. Meet other people for a chat. Writing about it, talking about it, shouting or moaning about it, all help to relieve stress. Sometimes having a good cry or bashing a pillow can soothe and calm your 70 ......... of anxiety.
A identifying danger. B finding food. C encouraging eating.
A sensibly. B logically. C emotionally.