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IELTS Practice Now Practice in Listening, Reading, Writing and Speaking for the IELTS Test ( PDFDrive )
QiiL^tion* 1-5
Below are listed some indi\ idual characteristics of the white and brown pens together with some characteristics which are common to both Indicate which is which by writing B for 'brown pen', VV for 'white pen' and C for 'common to both' in the spaces numbered 1-5 on the answer sheet 1 dissolves in water 2 can be easily recycled 3 feels smooth 4 tastes good b doesn't look like a pen Question* 6-11 Complete the following statements using not more than THREE WORDS FROM THE TEXT Write your answers in the spaces numbered 6-11 on the answer sheet 6 Many consumer items are being redesigned to minimize their 7 The advertising industry is taking advantage of the ecological trend, sometimes resorting to 8 The more reliable products are the result of financial support for 9 Among the new categories which feature in research and development programs in ninny countries are 10 SiicntifiL American behe\es that must be a priority for researchers in the near future 1 1 Engineers need to consider carefully Question* 12-14 Questions 12-14 describe the phases in the life of a product Below is a list of the issues to be considered during each phase Match an appropriate issue with each phase Write your answer A-E in the spaces numbered 12-14 on the answer sheet There are more issues than you will need. 12 obtaining the necessary raw materials 13 manufacturing the product 14 abandoning of product by consumer List of issues A using dangerous chemicals B causing harm to the environment C polluting the air D possibility of recycling the object E making factories safer QUESTIONS 75-30 You are advised to spend about 20 minute* on Questions 15-30 which refer to Reading Passage 2 below READING PASSAGE 2 From a gianl antenna set among the The search's prospects of success are founded undulating sheep paddocks of rural Australia, on a formula known as the Drake equation, one of the great voyages of discovery has developed by SETI Institute founder Dr Frank begun — the Search for Extraterrestrial Drake This says that the number of Intelligence, or SETI What the international civilizations in the Milky Way galaxy whose Project Phoenix uncovers is likely to be so radio emissions are detectable depends on utterly different from our kind, so vastly more sophisticated, as to defy imagining • The rate of formation of life-supporting stars • The proportion of those stars with planets The SETI institute, a California!! research • The number of earthlike planets per solar foundation, managed to raise $A16 million to system fund Project Phoenix, which is using the • The fraction of those on which life develops Australia Telescope at Parkes in New South • The fraction of those where intelligence Wales for its search To make its discovery, the develops telescope needs an extra-special hearing aid, a • The fraction of those where technology device which resembles an old-fashioned ear- develops, and trumpet Chilled to minus 260°C and crammed • The lifetimes over which such civilizations with electronics, this feed-horn is the most can release detectable signals into space sensitive built Responsibility for its construction fell to the Commonwealth To eliminate the dozens of interference events Scientific and Industrial Research Organisation which occur daily, the new search uses radio-engineer Dr Kel Wellington, another true something called a FUDD — a follow-up believer since childhood in the existence of detection device There is one at Pnrkes itself intelligence somewhere in the cosmos and another on a CS1RO antenna at Mopra, 200 km away If a promising signal is detected by Project Phoenix is a methodical search Of the the mam antenna it is cross-checked on the 40,000 million stars in our galaxy of similar age FUDDs If they fail to see it, then it is probably and character to our sun, 1000 have been local radio interference — perhaps a farmer on selected which lie within 120 light years of his mobile phone If they all see it, loud and Earth On a galactic scale, that is a bit like clear, the excitement begins searching a one-metre circle of grass on a 100 metre football oval At that point, says Dr Bobbie Vaile, astrophysicist at University of Western Sydney, The Parkes antenna zeroes on each star in turn, Macarthur, the first step is to check, recheck checking the 200 visible only from the southern and check again If the signal is still there and hemisphere The feedhprn listens in on radio is consistent over time the next step is to call channels between 1700"and 3000 megahertz, up colleagues on radiotelescopes around the the most efficient communication frequencies world and ask them to home in on the same It is here that the awesome power of modern star and frequency If they see it too, and the technology comes into play the computers signal is narrow and unnatural-looking, it scan each of 28 million channels in blocks of could come from another civilization searching among the clutter for the elusive pattern of a carrier signal that underlies all At this point, she says, the Australian I'nme complex radio or TV transmissions Minister and the US President would be notified and <) public press conference many years, maybe lifetimes — and we have convened 'It certainly won't be kept quiet It been sending radio messages out into the will be a discovery lor all humanity.' cosmos for nearly a century. A visit on either And it will be a decision for humanity whether side is virtually out of the question- to send a or not to respond The Project Phoenix team ship to the closest star. Alpha Centauri, four- will only listen and learn — they will not and-a-half light years distant, would consume transmit any replies. In any event, Vaile points energy equal to humanity's total use for 20 out, even to exchange messages would take years Download 1.65 Mb. Do'stlaringiz bilan baham: |
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