1月9日雅思阅读真题答案解析
剑桥雅思阅读9(test1)原文答案解析
剑桥雅思阅读9(test1)原文答案解析雅思阅读部分的真题资料，同学们需要进行一些细致的总结，比如说解析其实就是很重要的内容，接下来就是店铺给同学们带来的关于剑桥雅思阅读9原文解析(test1)的内容，一起来详细的分析一下吧，希望对你们的备考有所帮助。
剑桥雅思阅读9原文(test1)READING PASSAGE 1You should spend about 20 minutes on Questions 1-13, which are based on Reading Passage 1 below.William Henry PerkinThe man who invented synthetic dyesWilliam Henry Perkin was born on March 12, 1838, in London, England. As a boy, Perkin’s curiosity prompted early intere sts in the arts, sciences, photography, and engineering. But it was a chance stumbling upon a run-down, yet functional, laboratory in his late grandfather’s home that solidified the young man’s enthusiasm for chemistry.As a student at the City of London School, Perkin became immersed in the study of chemistry. His talent and devotion to the subject were perceived by his teacher, Thomas Hall, who encouraged him to attend a series of lectures given by the eminent scientist Michael Faraday at the Royal Institution. Those speeches fired the young chemist’s enthusiasm further, and he later went on to attend the Royal College of Chemistry, which he succeeded in entering in 1853, at the age of 15.At the time of Perkin’s enrolment, the Royal College of Chemistry was headed by the noted German chemist August Wilhelm Hofmann. Perkin’s scientific gifts soon caught Hofmann’s attention and, within two years, he becameHofmann’s youngest assistant. Not long after that, Perkin made the scientific breakthrough that would bring him both fame and fortune.At the time, quinine was the only viable medical treatment for malaria. The drug is derived from the bark of the cinchona tree, native to South America, and by 1856 demand for the drug was surpassing the available supply. Thus, when Hofmann made some passing comments about the desirability of a synthetic substitute for quinine, it was unsurprising that his star pupil was moved to take up the challenge.During his vacation in 1856, Perkin spent his time in the laboratory on th e top floor of his family’s house. He was attempting to manufacture quinine from aniline, an inexpensive and readily available coal tar waste product. Despite his best efforts, however, he did not end up with quinine. Instead, he produced a mysterious dark sludge. Luckily, Perkin’s scientific training and nature prompted him to investigate the substance further. Incorporating potassium dichromate and alcohol into the aniline at various stages of the experimental process, he finally produced a deep purple solution. And, proving the truth of the famous scientist Louis Pasteur’s words ‘chance favours only the prepared mind’, Perkin saw the potential of his unexpected find.Historically, textile dyes were made from such natural sources as plants and animal excretions. Some of these, such as the glandular mucus of snails, were difficult to obtain and outrageously expensive. Indeed, the purple colour extracted from a snail was once so costly in society at the time only the rich could afford it. Further, natural dyes tended to be muddy in hue and fade quickly. It was against this backdrop that Perkin’sdiscovery was made.Perkin quickly grasped that his purple solution could be used to colour fabric, thus making it the world’s first synthetic dye. Realising the importance of this breakthrough, he lost no time in patenting it. But perhaps the most fascinating of all Perkin’s reactions to his find was his nearly instant recognition that the new dye had commercial possibilities.Perkin originally named his dye Tyrian Purple, but it later became commonly known as mauve (from the French for the plant used to make the colour violet). He asked advice of Scottish dye works owner Robert Pullar, who assured him that manufacturing the dye would be well worth it if the colour remained fast (i.e. would not fade) and the cost was relatively low. So, over the fierce objections of his mentor Hofmann, he left college to give birth to the modern chemical industry.With the help of his father and brother, Perkin set up a factory not far from London. Utilising the cheap and plentiful coal tar that was an almost unlimited byproduct of London’s gas street lighting, the dye works began producing the world’s first synthetically dyed material in 1857. The company received a commercial boost from the Empress Eugenie of France, when she decided the new colour flattered her. Very soon, mauve was the necessary shade for all the fashionable ladies in that country. Not to be outdone, England’s Queen Victoria also appeared in public wearing a mauve gown, thus making it all the rage in England as well. The dye was bold and fast, and the public clamoured for more. Perkin went back to the drawing board.Although Perkin’s fame was achieved and fortune assured by his first discovery, the chemist continued his research. Among other dyes he developed and introduced were aniline red (1859)and aniline black (1863) and, in the late 1860s, Perkin’s green. It is important to note that Perkin’s synthetic dye discoveries had outcomes far beyond the merely decorative. The dyes also became vital to medical research in many ways. For instance, they were used to stain previously invisible microbes and bacteria, allowing researchers to identify such bacilli as tuberculosis, cholera, and anthrax. Artificial dyes continue to play a crucial role today. And, in what would have been particularly pleasing to Perkin, their current use is in the search for a vaccine against malaria.Questions 1-7Do the following statements agree with the information given in Reading Passage 1?In boxes 1-7 on your answer sheet, writeTRUE if the statement agrees with the informationFALSE if the statement contradicts the informationNOT GIVEN if there is no information on this1 Michael Faraday was the first person to recognise Perkin’s ability as a student of chemistry.2 Michael Faraday suggested Perkin should enrol in the Royal College of Chemistry.3 Perkin employed August Wilhelm Hofmann as his assistant.4 Perkin was still young when he made the discovery that made him rich and famous.5 The trees from which quinine is derived grow only in South America.6 Perkin hoped to manufacture a drug from a coal tar waste product.7 Perkin was inspired by the discoveries of the famous scientist Louis Pasteur.Questions 8-13Answer the questions below.Choose NO MORE THAN TWO WORDS from the passage for each answer.Write your answers in boxes 8-13 on your answer sheet.8 Before Perkin’s discovery, with what group in society was the colour purple associated?9 What potential did Perkin immediately understand that his new dye had?10 What was the name finally used to refer to the first colour Perkin invented?11 What was the name of the person Perkin consulted before setting up his own dye works?12 In what country did Perkin’s newly invented colour first become fashionable?13 According to the passage, which disease is now being targeted by researchers using synthetic dyes?READING PASSAGE 2You should spend about 20 minutes on Questions 14-26, which are based on Reading Passage 2 on the following pages.Questions 14-17Reading Passage 2 has five paragraphs, A-E.Choose the correct heading for paragraphs B-E from the list of headings below.Write the correct number, i-vii, in boxes 14-17 on your answer sheet.List of Headingsi Seeking the transmission of radio signals from planetsii Appropriate responses to signals from other civilisations iii Vast distances to Earth’s closest neighboursiv Assumptions underlying the search for extra-terrestrial intelligencev Reasons for the search for extra-terrestrial intelligencevi Knowledge of extra-terrestrial life formsvii Likelihood of life on other planetsExample AnswerParagraph A v14 Paragraph B15 Paragraph C16 Paragraph D17 Paragraph EIS THERE ANYBODY OUT THERE?The Search for Extra-terrestrial IntelligenceThe question of whether we are alone in the Universe has haunted humanity for centuries, but we may now stand poised on the brink of the answer to that question, as we search for radio signals from other intelligent civilisations. This search, often known by the acronym SETI (search for extra-terrestrial intelligence), is a difficult one. Although groups around the world have been searching intermittently for three decades, it is only now that we have reached the level of technology where we can make a determined attempt to search all nearby stars for any sign of life.AThe primary reason for the search is basic curiosity hethe same curiosity about the natural world that drives all pure science. We want to know whether we are alone in the Universe. We want to know whether life evolves naturally if given the right conditions, or whether there is something very special about the Earth to have fostered the variety of life forms that, we seearound us on the planet. The simple detection of a radio signal will be sufficient to answer this most basic of all questions. In this sense, SETI is another cog in the machinery of pure science which is continually pushing out the horizon of our knowledge. However, there are other reasons for being interested in whether life exists elsewhere. For example, we have had civilisation on Earth for perhaps only a few thousand years, and the threats of nuclear war and pollution over the last few decades have told us that our survival may be tenuous. Will we last another two thousand years or will we wipe ourselves out? Since the lifetime of a planet like ours is several billion years, we can expect that, if other civilisations do survive in our galaxy, their ages will range from zero to several billion years. Thus any other civilisation that we hear from is likely to be far older, on average, than ourselves. The mere existence of such a civilisation will tell us that long-term survival is possible, and gives us some cause for optimism. It is even possible that the older civilisation may pass on the benefits of their experience in dealing with threats to survival such as nuclear war and global pollution, and other threats that we haven’t yet discovered.BIn discussing whether we are alone, most SETI scientists adopt two ground rules. First, UFOs (Unidentified Flying Objects) are generally ignored since most scientists don’t consider the evidence for them to be strong enough to bear serious consideration (although it is also important to keep an open mind in case any really convincing evidence emerges in the future). Second, we make a very conservative assumption that we are looking for a life form that is pretty well like us, since if it differs radically from us we may well not recognise it as a life form,quite apart from whether we are able to communicate with it. In other words, the life form we are looking for may well have two green heads and seven fingers, but it will nevertheless resemble us in that it should communicate with its fellows, be interested in the Universe, live on a planet orbiting a star like our Sun, and perhaps most restrictively, have a chemistry, like us, based on carbon and water.CEven when we make these assumptions, our understanding of other life forms is still severely limited. We do not even know, for example, how many stars have planets, and we certainly do not know how likely it is that life will arise naturally, given the right conditions. However, when we look at the 100 billion stars in our galaxy (the Milky Way), and 100 billion galaxies in the observable Universe, it seems inconceivable that at least one of these planets does not have a life form on it; in fact, the best educated guess we can make, using the little that we do know about the conditions for carbon-based life, leads us to estimate that perhaps one in 100,000 stars might have a life-bearing planet orbiting it. That means that our nearest neighbours are perhaps 100 light years away, which is almost next door in astronomical terms.DAn alien civilistation could choose many different ways of sending information across the galaxy, but many of these either require too much energy, or else are severely attenuated while traversing the vast distances across the galaxy. It turns out that, for a given amount of transmitted power, radio waves in the frequency range 1000 to 3000 MHz travel the greatest distance, and so all searches to date have concentrated on looking forradio waves in this frequency range. So far there have been a number of searches by various groups around the world, including Australian searches using the radio telescope at Parkes, New South Wales. Until now there have not been any detections from the few hundred stars which have been searched. The scale of the searches has been increased dramatically since 1992, when the US Congress voted NASA $10 million per year for ten years to conduct, a thorough search for extra-terrestrial life. Much of the money in this project is being spent on developing the special hardware needed to search many frequencies at once. The project has two parts. One part is a targeted search using the world’s largest radio telescopes, the American-operated telescope in Arecibo, Puerto Rico and the French telescope in Nancy in France. This part of the project is searching the nearest 1000 likely stars with high sensitivity for signals in the frequency rang 1000 to 3000 MHz. The other part of the project is an undirected search which is monitoring all of space with a lower sensitivity, using the smaller antennas of NASA’s Deep Space Network.EThere is considerable debate over how we should react if we detect a signal from an alien civilisation. Everybody agrees that we should not reply immediately. Quite apart from the impracticality of sending a reply over such large distances at short notice, it raises a host of ethical questions that would have to be addressed by the global community before any reply could be sent. Would the human race face the culture shock if faced with a superior and much older civilisation? Luckily, there is no urgency about this. The stars being searched are hundreds of light years away, so it takes hundreds of years for their signal toreach us, and a further few hundred years for our reply to reach them. It’s not important, then, if there’s a delay of a few years, or decades, while the human race debates the question of whether to reply, and perhaps carefully drafts a reply.Questions 18-20Answer the questions below.Choose NO MORE THAN THREE WORDS AND/OR A NUMBER from the passage for each answer.Write your answers in boxes 18-20 on your answer sheet.18 What is the life expectancy of Earth?19 What kind of signals from other intelligent civilisations are SETI scientists searching for?20 How many stars are the world’s most powerful radio telescopes searching?Questions 21-26Do the following statements agree with the views of the writer in Reading Passage 2?In boxes 21-26 on your answer sheet, writeYES if the statement agrees with the views of the writerNO if the statement contradicts the views of the writerNOT GIVEN if it is impossible to say what the writer thinks about this21 Alien civilisations may be able to help the human race to overcome serious problems.22 SETI scientists are trying to find a life form that resembles humans in many ways.23 The Americans and Australians have co-operated on joint research projects.24 So far SETI scientists have picked up radio signals from several stars.25 The NASA project attracted criticism from some members of Congress.26 If a signal from outer space is received, it will be important to respond promptly.READING PASSAGE 3You should spend about 20 minutes on Questions 27-40, which are based on Reading Passage 3 below.The history of the tortoiseIf you go back far enough, everything lived in the sea. At various points in evolutionary history, enterprising individuals within many different animal groups moved out onto the land, sometimes even to the most parched deserts, taking their own private seawater with them in blood and cellular fluids. In addition to the reptiles, birds, mammals and insects which we see all around us, other groups that have succeeded out of water include scorpions, snails, crustaceans such as woodlice and land crabs, millipedes and centipedes, spiders and various worms. And we mustn’t forget the pla nts, without whose prior invasion of the land none of the other migrations could have happened.Moving from water to land involved a major redesign of every aspect of life, including breathing and reproduction. Nevertheless, a good number of thorough going land animals later turned around, abandoned their hard-earned terrestrial re-tooling, and returned to the water again. Seals have only gone part way back. They show us what the intermediates might have been like, on the way to extreme cases such as whales and dugongs. Whales (including the small whales we call dolphins) and dugongs, with their close cousins the manatees, ceased to be land creatures altogether and reverted to the full marine habits of their remote ancestors. They don’t even come ashoreto breed. They do, however, still breathe air, having never developed anything equivalent to the gills of their earlier marine incarnation. Turtles went back to the sea a very long time ago and, like all vertebrate returnees to the water, they breathe air. However, they are, in one respect, less fully given back to the water than whales or dugongs, for turtles still lay their eggs on beaches.There is evidence that all modern turtles are descended from a terrestrial ancestor which lived before most of the dinosaurs. There are two key fossils called Proganochelys quenstedti and Plaeochersis talampayensis dating from early dinosaur times, which appear to be close to the ancestry of all modern turtles and tortoises. You might wonder how we can tell whether fossil animals lived on land or in water, especially if only fragments are found. Sometimes it’s obvious. Ichthyosaurs were reptilian contemporaries of the dinosaurs, with fins and streamlined bodies. The fossils look like dolphins and they surely lived like dolphins, in the water. With turtles it is a little less obvious. One way to tell is by measuring the bones of their forelimbs.Walter Joyce and Jacques Gauthier, at Yale University, obtained three measurements in these particular bones of 71 species of living turtles and tortoises. They used a kind of triangular graph paper to plot the three measurements against one another. All the land tortoise species formed a tight cluster of points in the upper part of the triangle; all the water turtles cluster in the lower part of the triangular graph. There was no overlap, except when they added some species that spend time both in water and on land. Sure enough, these amphibious species show up on the triangular graph approximately half way between the ‘wet cluster’ of sea turtles and the ‘dry cluster’of land tortoises. The next step was to determine where the fossils fell. The bones of P. quenstedti and P. talampayensis leave us in no doubt. Their points on the graph are right in the thick of the dry cluster. Both these fossils were dry-land tortoises. They come from the era before our turtles returned to the water.You might think, therefore, that modern land tortoises have probably stayed on land ever since those early terrestrial times, as most mammals did after a few of them went back to the sea. But apparently not. If you draw out the family three of all modern turtles and tortoises, nearly all the branches are aquatic. Today’s land tortoises constitute a single branch, deeply nested among branches consisting of aquatic turtles. This suggests that modern land tortoises have not stayed on land continuously since the time of P. quenstedti and P. talampayensis. Rather, their ancestors were among those who went back to the water, and they then reemerged back onto the land in (relatively) more recent times.Tortoises therefore represent a remarkable double return. In common with all mammals, reptiles and birds, their remote ancestors were marine fish and before that various more or less worm-like creatures stretching back, still in the sea, to the primeval bacteria. Later ancestors lived on land and stayed there for a very large number of generations. Later ancestors still evolved back into the water and became sea turtles. And finally they returned yet again to the land as tortoises, some of which now live in the driest of deserts.Questions 27-30Answer the questions below.Choose NO MORE THAN TWO WORDS from the passage for each answer.Write your answers in boxes 27-30 on your answer sheet.27 What had to transfer from sea to land before any animals could migrate?28 Which TWO processes are mentioned as those in which animals had to make big changes as they moved onto lands?29 Which physical feature, possessed by their ancestors, do whales lack?30 which animals might ichthyosaurs have resembled?Questions 31-33Do the following statements agree with the information given in Reading Passage 3?In boxes 31-33 on your answer sheet, writeTRUE if the statement agrees with the informationFALSE if the statement contradicts the informationNOT GIVEN if there is no information on this31 Turtles were among the first group of animals to migrate back to the sea.32 It is always difficult to determine where an animal lived when its fossilised remains are incomplete.33 The habitat of ichthyosaurs can be determined by the appearance of their fossilised remains.Questions 34-39Complete the flow-chart below.Choose NO MORE THAN TWO WORDS AND/OR A NUMBER from the passage for each answer.Write your answers in boxes 34-39 on your answer sheet.Method of determining where the ancestors of turtles and tortoises come fromStep 171 species of living turtles and tortoises were examined anda total of 34 ……………………. were taken from the bones of theirforelimbs.Step 2The data was recorded on a 35 ……………….. (necessary for comparing the information).Outcome: Land tortoises were represented by a dense 36 …………………………… of points towards the top.Sea turtles were grouped together in the bottom part.Step 3The same data was collected from some living 37 ………………. species and added to the other results.Outcome: The points for these species turned out to be positioned about 38 ……………… up the triangle between the land tortoises and the sea turtles.Step 4Bones of P. quenstedti and P. talampayensis were examined in a similar way and the results added.Outcome: The position of the points indicated that both these ancient creatures were 39…………..Question 40Choose the correct letter, A, B, C or D.Write the correct letter in box 40 on your answer sheet.According to the writer, the most significant thing about tortoises is thatA they are able to adapt to life in extremely dry environments.B their original life form was a kind of primeval bacteria.C they have so much in common with sea turtles.D they have made the transition from sea to land more than once.剑桥雅思阅读9原文参考译文(test1)PASSAGE 1参考译文：William Henry Perkin 合成染料的发明者Wiliam Henry Perkin于1838年3月12日出生于英国伦敦。
1月9日雅思写作题目及
1月9日雅思写作题目及2016年1月9日雅思写作题目及范文大多数政府的.财政应该投资于理科教育这样，而不是其他科目，这样国家才能发展和进步，是否认同?下面是店铺整理的雅思英语作文，大家可以参考参考。
2016年1月9日雅思写作真题Most government money should be invested inteaching science rather than any other subjects inorder for a country to develop and progress?大多数政府的财政应该投资于理科教育这样，而不是其他科目，这样国家才能发展和进步，是否认同?【范文赏析】：Knowledge is power, Francis bacon wrote long ago. Education has a key to play in one’sgrowth and a nation’s development.Education is the driving force of productivity. Keeping this in mind, numerous countriesand governments are paying closer attention to the cultivation of talents. People differ greatlyin their views as to how to wisely allocate educational budget, some people assert thatinstead of supporting other subjects, national investment in science is desirable. As I see it,government should place equal stress on both science and arts.Granted, plenty of evidence and arguments could be easily found to prove that it isadvisable for a nation to subsidize science. For a start, the competition among differentcountries, to some extent, amounts to the competition of gifted people. Science andtechnology is the stimulating factor of the development of productivity. Large amounts oftalents could inject new life into a nation’s prosperity. Besides, in comparison with artstudents, those who are better equipped with science knowledge such ascomputer, businessand accounting could create more commercial value.Nevertheless, it is rather superficial to simply say that national budget should be onlyrestricted to science investment. The mightiness of a nation involves many aspects and thecultivation of good citizens or talents is to realize one’s comprehensive development. Theconstruction of a country needs enterprisers, mathematicians and scientist, yet, on no accountcan we ignore the immense value of artists, writers, musicians. In addition to sciencesubjects, literature, history, philosophy, music, art and PE should also become the aim ofeducati on. Literature strengthens one’s cultural deposit, history deepens one’s insight into life,philosophy fosters one’s analytical thinking, music moulds one’s temperament, art cultivatesone’s artistic eye and PE enhances one’s health index. In these senses, art still deservesenough attachment and support. Art talents are indispensable to the betterment of acountry.Overall, I re-affirm my conviction that education should not have too much utilitarian,conversely, it needs to render more concerns over one’s spir itual growth and character-training. Ideal educational policy should place equal significance on science investment andother subjects.2016年1月9日雅思写作题目Difference between countries are becoming less evident recently. People can see the same films, brands, fashion, advertisements and TV channels. To what extent do disadvantage outweigh advantages?参考范文：As a result of the accelerating process of globalization in various aspects, young people in different countries are morelikely to enjoy the same music, films, or television programs, which invariably result in some similarities.Some people may claim that it is more a curse than a blessing for the world. One argument commonly raised that this process will be damaging to the globe diversity. When locals are bombarded with foreign products or culture, they may gradually abandon their traditional values or ways of life, so this would have a negative impact on their national or cultural identities in the long run. They even quote numerous examples such as the Eskimo in Iceland and Mosuo ethnic group in Southwest China to illustrate their point of view.While this is particularly true of some minority cultures, I want to point out that they are still special cases instead of the general rule.Generally speaking, sharing something across the globe can contribute to a deeper mutual understanding between different nations. For example, a piece of country music by John Denver may well shed light on the peaceful daily life of Americans while a pop song by Cui Jian may introduce to Westerners a much more familiar China. What is more, an experience of some alien cultures may encourage more appreciation of the local ones, rather than assimilation or malfunction.There is overwhelming evidence on this when we consider japan, or China, or even the US, which tend to incorporate the international elements into the local.To conclude, I am quite optimistic about the prospect of an increasingly similar world. Of course, some minority groups may be put at a disadvantage for they cannot receive equal attention as the superpowers. So I also advocate that governments or other bodies should make efforts to bring these minorities into theinternational horizon.【2016年1月9日雅思写作题目及范文】。
2011年1月8日雅思(阅读)真题试卷(题后含答案及解析)
2011年1月8日雅思（阅读）真题试卷(题后含答案及解析)题型有：1.You should spend about 20 minutes on Questions 1-13 which are based on Reading Passage 1 below.Going BananasThe world’s favourite fruit could disappear forever in 10 years’ time.The banana is among the world’s oldest crops. Agricultural scientists believe that the first edible banana was discovered around ten thousand years ago. It has been at an evolutionary standstill ever since it was first propagated in the jungles of South-East Asia at the end of the last ice age. Normally the wild banana, a giant jungle herb called Musa acuminata, contains a mass of hard seeds that make the fruit virtually inedible. But now and then, hunter-gatherers must have discovered rare mutant plants that produced seedless, edible fruits. Geneticists now know that the vast majority of these soft-fruited plants resulted from genetic accidents that gave their cells three copies of each chromosome instead of the usual two. This imbalance prevents seeds and pollen from developing normally, rendering the mutant plants sterile. And that is why some scientists believe the world’s most popular fruit could be doomed. It lacks the genetic diversity to fight off pests and diseases that are invading the banana plantations of Central America and the smallholdings of Africa and Asia alike.In some ways, the banana today resembles the potato before blight brought famine to Ireland a century and a half ago. But “it holds a lesson for other crops, too”, says Emile Frison, top banana at the International Network for the Improvement of Banana and Plantain in Montpellier, France. “The state of the banana”, Frison warns, “can teach a broader lesson: the increasing standardisation of food crops round the world is threatening their ability to adapt and survive.”The first Stone Age plant breeders cultivated these sterile freaks by replanting cuttings from their stems. And the descendants of those original cuttings are the bananas we still eat today. Each is a virtual clone, almost devoid of genetic diversity. And that uniformity makes it ripe for disease like no other crop on Earth. Traditional varieties of sexually reproducing crops have always had a much broader genetic base, and the genes will recombine in new arrangements in each generation. This gives them much greater flexibility in evolving responses to disease - and far more genetic resources to draw on in the face of an attack. But that advantage is fading fast, as growers increasingly plant the same few, high-yielding varieties. Plant breeders work feverishly to maintain resistance in these standardised crops. Should these efforts falter, yields of even the most productive crop could swiftly crash. “When some pest or disease comes along, severe epidemics can occur,”says Geoff Hawtin, director of the Rome-based International Plant Genetic Resources Institute.The banana is an excellent case in point. Until the 1950s, one variety, the Gros Michel, dominated the world’s commercial banana business. Found by French botanists in Asia in the 1820s, the Gros Michel was by all accounts a fine banana, richer and sweeter than today’s standard banana and without the latter’s bitter aftertaste when green. But it was vulnerable to a soil fungus that produced a wiltknown as Panama disease. “Once the fungus gets into the soil it remains there for many years. There is nothing farmers can do. Even chemical spraying won’t get rid of it,”says Rodomiro Ortiz, director of the International Institute for Tropical Agriculture in Ibadan, Nigeria. So plantation owners played a running game, abandoning infested fields and moving to “clean” land - until they ran out of clean land in the 1950s and had to abandon the Gros Michel. Its successor, and still the reigning commercial king, is the Cavendish banana, a 19th-century British discovery from southern China. The Cavendish is resistant to Panama disease and, as a result, it literally saved the international banana industry. During the 1960s, it replaced the Gros Michel on supermarket shelves. If you buy a banana today, it is almost certainly a Cavendish. But even so, it is a minority in the world’s banana crop.Half a billion people in Asia and Africa depend on bananas. Bananas provide the largest source of calories and are eaten daily. Its name is synonymous with food. But the day of reckoning may be coming for the Cavendish and its indigenous kin. Another fungal disease, black Sigatoka, has become a global epidemic since its first appearance in Fiji in 1963. Left to itself, black Sigatoka - which causes brown wounds on leaves and premature fruit ripening - cuts fruit yields by 50 to 70 per cent and reduces the productive lifetime of banana plants from 30 years to as little as 2 or 3. Commercial growers keep Sigatoka at bay by a massive chemical assault. Forty sprayings of fungicide a year is typical. But despite the fungicides, diseases such as black Sigatoka are getting more and more difficult to control. “As soon as you bring in a new fungicide, they develop resistance,” says Frison. “One thing we can be sure of is that the Sigatoka won’t lose in this battle.”Poor farmers, who cannot afford chemicals, have it even worse. They can do little more than watch their plants die. “Most of the banana fields in Amazonia have already been destroyed by the disease,” says Luadir Gasparotto, Brazil’s leading banana pathologist with the government research agency EMBRAPA. Production is likely to fall by 70 per cent as the disease spreads, he predicts. The only option will be to find a new variety.But how? Almost all edible varieties are susceptible to the diseases, so growers cannot simply change to a different banana. With most crops, such a threat would unleash an army of breeders, scouring the world for resistant relatives whose traits they can breed into commercial varieties. Not so with the banana. Because all edible varieties are sterile, bringing in new genetic traits to help cope with pests and diseases is nearly impossible. Nearly, but not totally. Very rarely, a sterile banana will experience a genetic accident that allows an almost normal seed to develop, giving breeders a tiny window for improvement. Breeders at the Honduran Foundation of Agricultural Research have tried to exploit this to create disease-resistant varieties. Further backcrossing with wild bananas yielded a new seedless banana resistant to both black Sigatoka and Panama disease.Neither Western supermarket consumers nor peasant growers like the new hybrid. Some accuse it of tasting more like an apple than a banana. Not surprisingly, the majority of plant breeders have till now turned their backs on the banana and got to work on easier plants. And commercial banana companies are now washing their hands of the whole breeding effort, preferring to fund a search for new fungicides instead. “We supported a breeding programme for 40 years, but it wasn’table to develop an alternative to Cavendish. It was very expensive and we got nothing back,”says Ronald Romero, head of research at Chiquita, one of the Big Three companies that dominate the international banana st year, a global consortium of scientists led by Frison announced plans to sequence the banana genome within five years. It would be the first edible fruit to be sequenced. Well, almost edible. The group will actually be sequencing inedible wild bananas from East Asia because many of these are resistant to black Sigatoka. If they can pinpoint the genes that help these wild varieties to resist black Sigatoka, the protective genes could be introduced into laboratory tissue cultures of cells from edible varieties. These could then be propagated into new, resistant plants and passed on to farmers.It sounds promising, but the big banana companies have, until now, refused to get involved in GM research for fear of alienating their customers. “Biotechnology is extremely expensive and there are serious questions about consumer acceptance,”says David McLaughlin, Chiquita’s senior director for environmental affairs. With scant funding from the companies, the banana genome researchers are focusing on the other end of the spectrum. Even if they can identify the crucial genes, they will be a long way from developing new varieties that smallholders will find suitable and affordable. But whatever biotechnology’s academic interest, it is the only hope for the banana. Without it, banana production worldwide will head into a tailspin. We may even see the extinction of the banana as both a lifesaver for hungry and impoverished Africans and as the most popular product on the world’s supermarket shelves.Questions 1-3Complete the sentences below with NO MORE THAN THREE WORDS from the passage.Write your answers in boxes 1-3 on your answer sheet.1．Banana was first eaten as a fruit by humans almost_____years ago.正确答案：ten thousand解析：题目答案一定为数字信息，同时根据顺序原则，答案应该出现在文章开头，于是定位于原文第一段第二句话“Agricultural scientists believe that the first edible banana was discovered around ten thousand years ago”，题目信息“eaten”对应原文中的“edible”，所以答案为ten thousand。
雅思阅读试题练习与答案全解析
雅思阅读试题练习与答案全解析一、练习题阅读Passage 1：阅读以下段落，回答问题1-5。
1. What is the main topic of the passage?A. The advantages of the Internet.B. The disadvantages of the Internet.C. The impact of the Internet on society.D. The history of the Internet.2. According to the passage, which of the following is a problem caused by the widespread adoption of the Internet?A. Environmental pollution.B. Privacy issues.C. Economic growth.D. Educational improvement.3. Why does the Internet lead to social isolation?A.因为它改变了人们的交流方式B.因为它使人们更容易获取信息C.因为它促进了全球连接D.因为它提供了更多的娱乐方式4. Which of the following is NOT mentioned in the passage?A. Privacy issues.B. The spread of misinformation.C. Social isolation.D. Education inequality.5. In the author's opinion, how should people use the Internet responsibly?A. They should limit their online activities to protect their privacy.B. They should only consume information from trusted sources.C. They should spend more time on social media to stay connected.D. They should use the Internet as an educational tool to enhance their knowledge.阅读Passage 2：阅读以下段落，回答问题6-10。
剑桥雅思9真题及解析Test1阅读
剑桥雅思9阅读真题答案：Question 1—7：F、NG、F、T、NG、T、NGQuestion 8—13：(the rich、commercial、mauve、(RobertPullar、France、malariaPassage1整体分析裁材说明文题材人物介绍主题介绍合成染料发明人威廉·亨利·珀金以及合成染料的发现过程段落概括第一段珀金的生平以及兴趣介绍第二段 15岁时进入皇家化学学院学习第三段成为德国知名化学家霍夫曼最年轻的助手第四段承担起寻找奎宁替代品的实验第五段在实验中获得意外收获第六段传统的天然染料存在的弊端第七段意外获得可以染色的合成染料第八段合成染料的命名以及前期的商业筹备第九段合成染料取得了商业上的成功第十段合成染料的价值及其对其他领域的贡献雅思阅读重点词汇第一段第六段curiosity n. 好奇心，求知欲prompt v. 促进;激起stumble upon 偶然发现enthusiasm n. 热情，激情historically adv. 从历史角度；在历史上dye n. 染料，染色 v. 给……染色outrageously adv. 非常，不寻常地fade v. 褪色，失去光泽backdrop n. 背景第二段immerse v. 沉迷，陷入perceive v. 意识到，察觉devotion n. 献身;热爱;忠诚eminent adj. 知名的，杰出的第七段grasp v. 了解，明白，抓住fabric n. 织物，布fascinating adj. 迷人的，有巨大吸引力的第三段enrolment n. 登记;注册fortune n. 财富，命运，幸运breakthrough n. 突破;穿透第八段originally adv. 起初，原来，别出心裁地assure v. （使）确信fierce adj. 强烈的；激烈的第四段viable adj. 切实可行的，有望实现的derive from 从……提取synthetic adj. 合成的，人造的第九段utilise v. 利用，使用flatter v. （使）满意，（使）高兴surpass v. 超过，胜过substitute ['snbstitju.t] n. 替代品v. 替代，替换第五段attempt v. 试图，尝试readily adv. 随意地，便利地unexpected adj. 意想不到的，意外的manufacture v. 制造；生产potential n. 潜能，可能性；a. 潜在的，有可能的第十段decorative adj. 装饰的考题精解Question 1——7题型：判断题 TRUE/FALSE/NOT GIVEN解析：判断题一般都是按照其在原文中出现的顺序排列，确定了第一个题目对应原文中的具体位置，即可向后直接寻找其他题目的答案。
雅思阅读真题附答案及解析
智课网IELTS备考资料雅思阅读真题附答案及解析摘要：雅思阅读真题附答案及解析，雅思阅读真题附答案及解析是小编整理汇总的最新的雅思阅读真题，在如此紧张的备考环节，大家就应该多看看雅思阅读真题，会大大提高你的效率，更多精彩内容请关注小马科技雅思频道官网。
Passage 1主题：科技类 (新题)题目：英国的酒精燃料题型：填空，判断文章大意：乙醇作为新燃料的提炼过程和与汽油的对比参考答案：1-5 判断题1.因果农民不太可能会为了制造乙醇燃料大种甘蔗 (True)2.在的农名讲扩大生产更多乙醇植物 (True)3.A gallon ethanol have more engineer than a gallon gasoline. (NG)4.在将来美国将会有充足的crop在制造氢气。
(false)5.乙醇的生产者会尽量减少生产过程中使用的能量。
(NG)6-10 填空题distillerligninremainsbioreactorfiber备考建议：科技类文章不太好理解，而且生词会比较多。
建议大家在考前可以多多积累相关题材的词汇。
参考阅读：C542Passage 2题材：历史考古类 (旧题)题目：costal archaeology of Britain题型：单选，判断，多选参考答案：单选：B，C， D判断题：True， False, True, False, NG, True, True多选：BDF备考建议：历史类文章不难理解，且这篇文章的题型都是顺序题型，为我们做题大大降低了难度。
参考阅读：C7T1P1 Let’s go, batsPassage 3：题材：语言类题目：The Origin of Language文章大意：语言的起源，语言与音乐的关系参考阅读：C931 Attitudes to Language以上就是小马过河雅思频道小编为大家汇总的雅思阅读真题附答案及解析，希望同学们能静下心来准备下一轮的考试，加油!成功是属于你们的。
剑桥雅思真题解析阅读9（test3）
剑桥雅思真题解析阅读9(test3)雅思阅读部分一直都是中国考生比较重视的题目，并且也是很有难度的题目，针对于雅思阅读真题资料也是大家需要重点分析的。
今天智课网小编就给大家带来了关于剑桥雅思阅读9及真题解析(test3)的内容，一起来分析一下吧。
剑桥雅思阅读9原文(test3)READING PASSAGE 1You should spend about 20 minutes on Questions 1-13, which are based on Reading Passage 1 below.Attitudes to languageIt is not easy to be systematic and objective about language study. Popular linguistic debate regularly deteriorates into invective and polemic. Language belongs to everyone, so most people feel they have a right to hold an opinion about it. And when opinions differ, emotions can run high. Arguments can start as easily over minor points of usage as over major policies of linguistic education.Language, moreover, is a very public behaviour, so it is easy for different usages to be noted and criticised. No part of society or social behaviour is exempt: linguistic factors influence how we judge personality, intelligence, social status, educational standards, job aptitude, and many other areas of identity and social survival. As a result, it is easy to hurt, and to be hurt, when language use is unfeelingly attacked.In its most general sense, prescriptivism is the view that one variety of language has an inherently higher value than others, and that this ought to be imposed on the whole of the speech community. The view is propounded especially in relation to grammar and vocabulary, and frequently with reference topronunciation. The variety which is favoured, in this account, is usually a version of the ‘standard’ written language, especially as encountered in literature, or in the formal spoken language which most closely reflects this style. Adherents to this variety are said to speak or write ‘correctly’; deviations fr om it are said to be ‘incorrect’.All the main languages have been studied prescriptively, especially in the 18th century approach to the writing of grammars and dictionaries. The aims of these early grammarians were threefold: (a) they wanted to codify the principles of their languages, to show that there was a system beneath the apparent chaos of usage, (b) they wanted a means of settling disputes over usage, and (c) they wanted to point out what they felt to be common errors, in order to ‘improve’ the la nguage. The authoritarian nature of the approach is best characterized by its reliance on ‘rules’ of grammar. Some usages are ‘prescribed’, to be learnt and followed accurately; others are ‘proscribed’, to be avoided. In this early period, there were no half-measures: usage was either right or wrong, and it was the task of the grammarian not simply to record alternatives, but to pronounce judgement upon them.These attitudes are still with us, and they motivate a widespread concern that linguistic standards should be maintained. Nevertheless, there is an alternative point of view that is concerned less with standards than with the facts of linguistic usage. This approach is summarized in the statement that it is the task of the grammarian to describe, not prescribe —to record the facts of linguistic diversity, and not to attempt the impossible tasks of evaluating language variation or halting language change. In the second half of the 18th century, wealready find advocates of this view, such as Joseph Priestley, whose Rudiments of English Grammar (1761) insists that ‘the custom of speaking is the original and only just standard of any language’. Linguistic issue, it is argued, cannot be solved by logic and legislation. And this view has become the tenet of the modern linguistic approach to grammatical analysis.In our own time, the opposition between ‘descriptivists’ and ‘prescriptivists’ has often become extreme, with both sides painting unreal pictures of the other. Descriptive grammarians have been presented as people who do not care about standards, because of the way they see all forms of usage as equally valid. Prescriptive grammarians have been presented as blind adherents to a historical tradition. The opposition has even been presented in quasi-political terms —of radical liberalism vs elitist conservatism.Questions 1-8Do the following statements agree with the claims of the writer in Reading Passage 1?In boxes 1-8 on your answer sheet, writeYES if the statement agrees with the claims of the writerNO if the statement contradicts the claims of the writerNOT GIVEN if it is impossible to say what the writer thinks about this1 There are understandable reasons why arguments occur about language.2 People feel more strongly about language education than about small differences in language usage.3 Our assessment of a person’s intelligence is affected by the way he or she uses language.4 Prescriptive grammar books cost a lot of money to buy inthe 18th century.5 Prescriptivism still exists today.6 According to descriptivists it is pointless to try to stop language change.7 Descriptivism only appeared after the 18th century.8 Both descriptivists and prescriptivists have been misrepresented.Questions 9-12Complete the summary using the list of words, A-I, below.Write the correct letter, A-I, in boxes 9-12 on your answer sheet.The language debateAccording to 9______, there is only one correct form of language. Linguists who take this approach to language place great importance on grammatical 10 ______.Conversely, the view of 11 ______, such as Joseph Priestly, is that grammar should be based on 12 ______.A descriptivistsB language expertsC popular speechD formal languageE evaluationF rulesG modern linguists H prescriptivists I changeQuestion 13Choose the correct letter, A, B, C or D.Write the correct letter in box 13 on your answer sheet.What is the writer’s purpose in Reading Passage 1?A. to argue in favour of a particular approach to writing dictionaries and grammar booksB. to present a historical account of differing views of languageC. to describe the differences between spoken and written languageD. to show how a certain view of language has been discreditedREADING PASSAGE 2You should spend about 20 minutes on Questions 14-26, which are based on Reading Passage 2 below.Tidal PowerUndersea turbines which produce electricity from the tides are set to become an important source of renewable energy for Britain. It is still too early to predict the extent of the impact they may have, but all the signs are that they will play a significant role in the futureA. Operating on the same principle as wind turbines, the power in sea turbines comes from tidal currents which turn blades similar to ships’ propellers, but, unlike wind, the tid es are predictable and the power input is constant. The technology raises the prospect of Britain becoming self-sufficient in renewable energy and drastically reducing its carbon dioxide emissions. If tide, wind and wave power are all developed, Britain would be able to close gas, coal and nuclear power plants and export renewable power to other parts of Europe. Unlike wind power, which Britain originally developed and then abandoned for 20 years allowing the Dutch to make it a major industry, undersea turbines could become a big export earner to island nations such as Japan and New Zealand.B. Tidal sites have already been identified that will produce one sixth or more of the UK’s power —and at prices competitive with modern gas turbines and undercutting those of the already ailing nuclear industry. One site alone, the Pentland Firth, between Orkney and mainland Scotland, could produce 10% of the country’s electricity with banks of turbines under the sea,and another at Alderney in the Channel Islands three times the 1,200 megawatts of Britain’s largest and newest nuclear plant, Sizewell B, in Suffolk. Other sites identified include the Bristol Channel and the west coast of Scotland, particularly the channel between Campbeltown and Northern Ireland.C. Work on designs for the new turbine blades and sites are well advanced at the University of Southampton’s sustainable energy research group. The first station is expected to be installed off Lynmouth in Devon shortly to test the technology in a venture jointly funded by the department of Trade and Industry and the European Union. AbuBakr Bahaj, in charge of the Southampton research, said: ‘The prospects for energy from tidal currents are far better than from wind because the flows of water are predictable and constant. The technology for dealing with the hostile saline environment under the sea has been developed in the North Sea oil industry and much is already known about turbine blade design, because of wind power and ship propellers. There are a few technical difficulties, but I believe in the next five to ten years we will be installing commercial marine turbine farms.’ Southampton has been awarded ￡215,000 over three years to develop the turbines and is working with Marine Current Turbines, a subsidiary of IT power, on the Lynmouth project. EU research has now identified 106 potential sites for tidal power, 80% round the coasts of Britain. The best sites are between islands or around heavily indented coasts where there are strong tidal currents.D. A marine turbine blade needs to be only one third of the size of wind generator to produce three times as much power. The blades will be about 20 metres in diameter, so around 30 metres of water is required. Unlike wind power, there are unlikelyto be environmental objections. Fish and other creatures are thought unlikely to be at risk from the relatively slow-turning blades. Each turbine will be mounted on a tower which will connect to the national power supply grid via underwater cables. The towers will stick out of the water and be lit, to warn shipping, and also be designed to be lifted out of the water for maintenance and to clean seaweed from the blades.E. Dr Bahaj has done most work on the Alderney site, where there are powerful currents. The single undersea turbine farm would produce far more power than needed for the Channel Islands and most would be fed into the French Grid and be re-imported into Britain via the cable under the Channel.F. One technical difficulty is cavitation, where low pressure behind a turning blade causes air bubbles. These can cause vibration and damage the blades of the turbines. Dr Bahaj said: ‘We have to test a number of blade types to avoid this happening or at least make sure it does not damage the turbines or reduce performance. Another slight concern is submerged debris floating into the blades. So far we do not know how much of a problem it might be. We will have to make the turbines robust because the sea is a hostile environment, but all the signs that we can do it are good.’Questions 14-17Reading Passage 2 has six paragraphs, A-F.Which paragraph contains the following information?Write the correct letter, A-F, in boxes 14-17 on your answer sheet.NB You may use any letter more than once.14 the location of the first test site15 a way of bringing the power produced on one site backinto Britain16 a reference to a previous attempt by Britain to find an alternative source of energy17 mention of the possibility of applying technology from another industryQuestions 18-22Choose FIVE letters, A-J.Write the correct letters in boxes 18-22 on your answer sheet.Which FIVE of the following claims about tidal power are made by the writer?A It is a more reliable source of energy than wind power.B It would replace all other forms of energy in Britain.C Its introduction has come as a result of public pressure.D It would cut down on air pollution.E It could contribute to the closure of many existing power stations in Britain.F It could be a means of increasing national income.G It could face a lot of resistance from other fuel industries.H It could be sold more cheaply than any other type of fuel.I It could compensate for the shortage of inland sites for energy production.J It is best produced in the vicinity of coastlines with particular features.Questions 23-26Label the diagram below.Choose NO MORE THAN TWO WORDS from the passage for each answer.Write your answers in boxes 23-26 on your answer sheet.An Undersea TurbineREADING PASSAGE 3You should spend about 20 minutes on Questions 27-40, which are based on Reading Passage 3 below.Information theory-the big ideaInformation theory lies at the heart of everything —from DVD players and the genetic code of DNA to the physics of the universe at its most fundamental. It has been central to the development of the science of communication, which enables data to be sent electronically and has therefore had a major impact on our livesA. In April 2002 an event took place which demonstrated one of the many applications of information theory. The space probe, Voyager I, launched in 1997, had sent back spectacular images of Jupiter and Saturn and then soared out of the Solar System on a one-way mission to the stars. After 25 years of exposure to the freezing temperatures of deep space, the probe was beginning to show its age. Sensors and circuits were on the brink of failing and NASA experts realized that they had to do something or lose contact with their probe forever. The solution was to get a message to Voyager I to instruct it to use spares to change the failing parts. With the probe 12 billion kilometers from Earth, this was not an easy task. By means of a radio dish belonging to NASA’s Deep Space Network, the message was sent out into the depths of space. Even travelling at the speed of light, it took over 11 hours to reach its target, far beyond the orbit of Pluto. Yet, incredibly, the little probe managed to hear the faint call from its home planet, and successfully made the switchover.B. It was the longest-distance repair job in history, and a triumph for the NASA engineers. But it also highlighted the astonishing power of the techniques developed by American communications engineer Claude Shannon, who had died just ayear earlier. Born in 1916 in Petoskey, Michigan, Shannon showed an early talent for maths and for building gadgets, and made breakthroughs in the foundations of computer technology when still a student. While at Bell Laboratories, Shannon developed information theory, but shunned the resulting acclaim. In the 1940s, he single-handedly created an entire science of communication which has since inveigled its way into a host of applications, from DVDs to satellite communications to bar codes — any area, in short, where data has to be conveyed rapidly yet accurately.C. This all seems light years away from the down-to-earth uses Shannon originally had for his work, which began when he was a 22-year-old graduate engineering student at the prestigious Massachusetts Institute of Technology in 1939. He set out with an apparently simple aim: to pin down the precise meaning of the concept of ‘information’. The most basic form of information, Shannon argued, is whether something is true or false —which can be captured in the binary unit, or ‘bit’, of the form 1 or 0. Having identified this fundamental unit, Shannon set about defining otherwise vague ideas about information and how to transmit it from place to place. In the process he discovered something surprising: it is always possible to guarantee information will get through random interference —‘noise’ — intact.D. Noise usually means unwanted sounds which interfere with genuine information. Information theory generalses this idea via theorems that capture the effects of noise with mathematical precision. In particular, Shannon showed that noise sets a limit on the rate at which information can pass along communication channels while remaining error-free. This ratedepends on the relative strengths of the signal and noise travelling down the communication channel, and on its capacity (its ‘bandwidth’). The resulting limit, given in units of bits per second, is the absolute maximum rate of error-free communication given singal strength and noise leve. The trick, Shannon showed, is to find ways of packaging up —‘coding’ — information to cope with the ravages of noise, while staying within the information-carrying capacity —‘bandwidth’ — of the communication system being used.E. Over the years scientists have devised many such coding methods, and they have proved crucial in many technological feats. The Voyager spacecraft transmitted data using codes which added one extra bit for every single bit of information; the result was an error rate of just one bit in 10,000 — and stunningly clear pictures of the planets. Other codes have become part of everyday life — such as the Universal Product Code, or bar code, which uses a simple error-detecting system that ensures supermarket check-out lasers can read the price even on, say, a crumpled bag of crisps. As recently as 1993, engineers made a major breakthrough by discovering so-called turbo codes —which come very close to Shannon’s ultimate limit for the maximum rate that data can be transmitted reliably, and now play a key role in the mobile videophone revolution.F. Shannon also laid the foundations of more efficient ways of storing information, by stripping out superfluous (‘redundant’) bits from data which contributed little real information. As mobile phone text messages like ‘I CN C U’ show, it is often possible to leave out a lot of data without losing much meaning. As with error correction, however, there’s a limit beyond which messages become too ambiguous. Shannonshowed how to calculate this limit, opening the way to the design of compression methods that cram maximum information into the minimum space.Questions 27-32Reading Passage 3 has six paragraphs, A-F.Which paragraph contains the following information?Write the correct letter, A-F, in boxes 27-32 on your answer sheet.27 an explanation of the factors affecting the transmission of information28 an example of how unnecessary information can be omitted29 a reference to Shannon’s attitude to fame30 details of a machine capable of interpreting incomplete information31 a detailed account of an incident involving information theory32 a reference to what Shannon initially intended to achieve in his researchQuestions 33-37Complete the notes below.Choose NO MORE THAN TWO WORDS form the passage for each answer.Write your answers in boxes 33-37 on your answer sheet.The Voyager 1 Space ProbeThe probe transmitted pictures of both 33______ and ______, then left the 34 ______.The freezing temperatures were found to have a negative effect on parts of the space probe.Scientists feared that both the 35 ______ and ______ wereabout to stop working.The only hope was to tell the probe to replace them with 36 ______ —but distance made communication with the probe difficult.A 37 ______ was used to transmit the message at the speed of light.The message was picked up by the probe and the switchover took place.Questions 38-40Do the following statements agree with the information given in Reading Passge 3?In boxes 38-40 on your answer sheet, writeTRUE if the statement agrees with the informationFALSE if the statement contradicts the informationNOT GIVEN if there is no information on this38 The concept of describing something as true or false was the starting point for Shannon in his attempts to send messages over distances.39 The amount of information that can be sent in a given time period is determined with reference to the signal strength and noise level.40 Products have now been developed which can convey more information than Shannon had anticipated as possible.剑桥雅思阅读9原文参考译文(test3)PASSAGE 1 参考译文：对语言的态度对于语言进行系统、客观的研究并不容易。
2019年1月雅思真题回忆及解析
2019年1月雅思真题回忆及解析不积跬步，无以至千里；不积小流，无以成江海。
对于雅思考试而言，每天进步一点点，基础扎实一点点，通过考试就会更容易一点点。
无忧考网搜集整理了2019年1月雅思真题回忆及解析，希望对大家有所帮助。
2019年1月举行了5场考试，时间分别是1月5日、1月12日、1月17日、1月19日、1月26日。
以下内容仅供参考。
1月5日雅思口语真题回忆：Film stars相关词汇：domestic films 国内电影imported films 国外电影filmgoers 影迷blockbusters 大片1. Who is your favorite film star?Actually I wouldn’t say that I have one particular favourite, and if I'm completely honest I'd have to say that I don’t really pay much attention to film stars'names or who they are and that kind of thing, I just like watching good films I'm not really bothered about who the actors or actresses are.分析：此题回答难度不大，可以正面回答最喜欢的电影明星是谁，然后拓展一下此明星的背景、参演的电影以及你为什么喜欢ta。
也可以参考前考官的答案，直接说没有最喜欢的电影明星。
加分词汇：Actually; particular.地道表达：if I'm completely honest…坦诚说….; I’m not really bothered about…并不介意….2. Are film stars from overseas famous in your country?I think young people might be quite into film stars from overseas because they tend to watch more international films and especially Hollywood blockbusters and things like that; older filmgoers are a bit different though, they probably prefer watching domestic films rather than imported films so older cinema fans are lesslikely to know foreign film stars.分析：此题相对于第一题难度会大一些，这里有些表达必须要会，比如“好莱坞大片”的表达，“国内电影”和“国外电影”的表达，同时还要学会同义替换。
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1月9日雅思阅读真题答案解析一、考试概述：本次新年的第一场考试又是AB卷。
A卷第一篇话题讲了生物的生存不确定性，第二篇介绍了音乐的力量，第三篇讲了课堂大小对于学习效果的影响。
的话题是两新一旧，第一篇内容为古生物化石，第二篇是情绪影响人的行为，第三篇是儿童文学二、具体题目分析A卷Passage 1：题目：Living with uncertainty题型：判断7+简答6题号：新题答案：1-7判断题1 FALSE2 TRUE3 NOT GIVEN4 TRUE5 NOT GIVEN6 FALSE7 TRUE8-13简答题8 lit fires9 saltbush10 European farming11 wheat12 pear13 Tellers(目前无明确回忆，答案仅供参考)Passage 2：题目：The power of music题型：段落信息匹配5+Summary 4+人名配理论4文章大意：待补充答案：14-18信息配段落14. D15. I16. C17. F18. E19-22 Summary without word list19 physical health20 disabled21 brain scans22 walking23-26人名配理论23 C24 B25 A26 A(答案仅供参考)Passage 3：题名：Does class size matter?题型：段落信息匹配5+分类配对9文章大意：待补充答案：27-31段落信息匹配27 D28 E29 A30 C31 B32-40 Classification32 A33 C34 B35 C36 A37 C38 A39 B40 A(目前无明确回忆，答案仅供参考)B卷Passage 1：题目：The History of building telegraph lines题型：判断6+简答7文章大意：电报的发展史相似文章：A The idea of electrical communication seems to have begun as long ago as 1746, when about 200 monks at monastery in Paris arranged themselves in a line over a mile long, each holding ends of 25 ft iron wires. The abbot, also a scientist, discharged a primitive electrical battery into the wire, giving all the monks a simultaneous electrical shock. “Thisall sounds very silly, but is in fact extremely important because, firstly, they all said ‘ow’ which showed that you were sending a signal right along the line; and, secondly, they all said ‘ow’ at the same time, and that meant that you were sending the signal very quickly, “explains Tom Standage, author of the Victorian Internet and technology editor at the Economist. Given a more humane detection system, this could be a way of signaling over long distances.B With wars in Europe and colonies beyond, such a signalling system was urgently needed. All sorts of electrical possibilities were proposed, some of them quite ridiculous. Two Englishmen, William Cooke and Charles Wheatstone came up with a system in which dials were made to point at different letters, but that involved five wires and would have been expensive to construct.C Much simpler was that of an American, Samuel Morse, whose system only required a single wire to send a code of dots and dashes. At first, it was imagined that only a few highly skilled encoders would be able to use it but it soon became clear that many people could become proficient in Morse code. A system of lines strung on telegraph poles began to spread in Europe and America.D The next problem was to cross the sea. Britain, as an island with an empire, led the way. Any such cable had to be insulated and the first breakthrough came with the discovery that a rubber-like latex from atropical tree on the Malay peninsula could do the trick. It was called gutta percha. The first attempt at a cross channel cable came in 1850. With thin wire and thick installation, it floated and had to be weighed down with lead pipe.E It never worked well as the effect of water on its electrical properties was not understood, and it is reputed that a French fishermen hooked out a section and took it home as a strange new form of seaweed The cable was too big for a single boat so two had to start in the middle of the Atlantic, join their cables and sail in opposite directions. Amazingly, they succeeded in 1858, and this enabled Queen Victoria to send a telegraph message to President Buchanan. However, the 98-word message took more than 19 hours to send and a misguided attempt to increase the speed by increasing the voltage resulted in failure of the line a week later.F By 1870, a submarine cable was heading towards Australia. It seemed likely that it would come ashore at the northern port of Darwin from where it might connect around the coast to Queensland and New South Wales. It was an undertaking more ambitious than spanning an ocean. Flocks of sheep had to be driven with the 400 workers to provide food. They needed horses and bullock carts and, for the parched interior, camels. In the north, tropical rains left the teams flooded. In the centre, it seemed that they would die of thirst. One critical section in the red heartof Australia involved finding a route through the McDonnell mountain range and then finding water on the other side.G The water was not only essential for the construction team. There had to be telegraph repeater stations every few hundred miles to boost the signal and the staff obviously had to have a supply of water, lust as one mapping team was about to give up and resort to drinking brackish water, some aboriginals took pity on them. Altogether, 40, 000telegraph poles were used in the Australian overland wire. Some were cut from trees. Where there were no trees, or where termites ate the wood, steel poles were imported.H On Thursday, August 22, 1872, the overland line was completed and the first messages could be sent across the continent; and within a few months, Australia was at last in direct contact with England via the submarine cable, too. The line remained in service to bring news of the Japanese attack on Darwin in 1942. it could cost several pounds to send a message and it might take several hours for it to reach its destination on the other side of the globe, but the world would never be same again. Governments could be in touch with their colonies. Traders could send cargoes based on demand and the latest prices. Newspapers could publish news that had just happened and was not many months old.答案：Questions 1-61 In the research of French scientists, the metal lines were used to send message T2 Abbots gave the monks an electrical shock at the same time, which constitutes the exploration on the long-distance signaling. T3 Using Morse Code to send message need to simplify the message firstly F4 Morse was a famous inventor before he invented the code T5 The water is significant to early telegraph repeater on continent. T6 US Government offered fund to the I st overland line across the continent NGQuestions 7-14Answer the questions below.Choose NO MORE THAN TWO WORDS AND / OR A NUMBER from the passage for each answer.Write your answers in boxes 7-14 on your answer sheet.7. Why is the disadvantage for the Charles Wheatstone’s telegraph system to fail in the beginning?It’s expensive8. What material was used for insulating cable across the sea?latex9. What was used by British pioneers to increase the weight of the cable in the sea?Lead ripe10. What did Fisherman mistakenly take the cable as?Unusual seaseed11. Who was the message firstly sent to across the Atlantic by theQueen?President Buchanan12. What giant animals were used to carry the cable through desert?camels13. What weather condition did it delay the construction in north Australia?Tropical rain14. How long did it take to send a telegraph message from Australia to England?Several hours(答案仅供参考)Passage 2：题目：儿童天赋和能力影响题型：判断5+概括5+多项选择4文章大意：孩子的天赋和能力影响，孩子容易受到环境影响学习到一些能力，而大人不容易，各种比较，举了语言的例子和其他能力的例子答案：1-4选择题1. Which one not mentioned about infantA intelligence C social skillsD language2. What the animal experiment is to illustrate Different lines and angles affect sight3. the second experiment on … is prove that Human’s development is similar to animals in this area4. Why children appears mindlessCortex still does work5-9 summary实验用的speech sound语言是Japanese研究人员选用的，做第二个实验给小孩听噪音(noise)心跳变快(heart rate)，第三个实验visual observation有关，仔细观察physical eye movement.第四个实验因为选的地域广，结论充分harness dialects，由此科学家可以很好的控制他们的实验。