高考阅读科普类文章

阅 读 训 练 之 一 科 普 类（2011.10.10） 编制人：文建玲 杨玲 张宝泉    审核：文建玲 温馨提示： 1、这类文章的总体特点是：科技词汇多，句子结构复杂，理论性强，逻辑严谨。 具体特点： 1. 文章中词汇的意义比较单一、稳定、简明，不带感情色彩，具有单一性和准确性的特点。这类文章通常不会出现文学英语中采用的排比、比喻、夸张等修辞手法，一词多义的现象也不多见。2. 句子结构较复杂，语法分析较困难。为了描述一个客观事物，严密地表达自己的思想，作者经常会使用集多种语法现象于一体的长句。3. 常使用被动语态，尤其是一些惯用被动句式。 二、应对策略1. 要想做好科普英语阅读理解题，同学们就要注意平时多读科普知识类文章，学习科普知识，积累常见的科普词汇，从根本上提高科普英语的阅读能力。2. 要熟悉科普类文章的结构特点。科普类文章一般由标题(Headlines)，导语(Introductions)，背景( Background)，主体(Main body)和结尾(Ends)五部分构成。标题是文章中心思想高度而又精辟的概括，但根据历年的高考真题情况来看，这类阅读理解材料一般不给标题，而要同学们选择标题。导语一般位于整篇文章的首段。背景交待一个事实的起因。主体则对导语概括的事实进行详细叙述。这一部分命题往往最多，因此，阅读时，同学们要把这部分作为重点。结尾往往也是中心思想的概括，并与导语相呼应，命题者常在此 设计 领导形象设计圆作业设计ao工艺污水处理厂设计附属工程施工组织设计清扫机器人结构设计 一道推理判断题。3. 在进行推理判断时，同学们一定要以阅读材料所提供的科学事实为依据，同时所得出的结论还应符合基本的科普常识。 I.材料阅读： 一、（2011湖南） A recent study of ancient and modern elephant has come up with the unexpected conclusion that the African elephant is divided into two distinct (不同的 )species The discovery was made by researchers at York and Harvard University when they were examing the genetic relationship between the ancient woolly mammoth and mastodon to modern elephants—the Asian elephant, African forest elephant, and African savanna elephant. Once they obtained DNA sequences（序列）from two fossils（化石）,mammoths and mastodons, the team compared them with DNA from modern elephants. They found  to their amazement that modern forest and savanna elephants are as distinct from each other as Asian elephants and mammoths. The scientists used detailed genetic analysis to prove that the African savanna elephant and the African forest elephant have been distinct species for several million years. The divergence of the two species took place around the time of the divergence of Asian elephants and woolly mamm oths. This result amazed all the scientists. There has long been debate in the scientific community that the two might be separate species, but this is the most convincing scientific evidence so far that they are indeed different species. Previously, many naturalists believed that African savanna elephants and African forest elephants were two populations of the same species, despite the elephants’ significant size differences. The savanna elephant has an average shoulder height of 3.5 metres while the forest elephant has an average shoulder height of 2.5 meters. The savanna elephant weighs between six and seven tons, roughly double the weight of the forest elephant. But the fact that they look so different does not necessarily mean they are different species. However the proof lay in the analysis of the DNA. Alfred Roca, assistant professor in the Department of Animal Sciences at the University of Illinois, said, “We now have to treat the forest and savanna elephants as two different units for conservation purposes. Since 1950, all African elephants have been conserved as one species. Now that we know the forest and savanna elephants are two very distinctive animals, the forest elephant should become a bigger priority（优先）for conservation purposes.” 66.One of the fossiles studied by the researchers is that of       . A. the Asian elephant      B. the forest elephant C. the savanna elephant    D. the mastodon elephant 67. The underlined word “divergence” in Paragraph 4 means “      .” A. evolution    B. Exhibition  C. Separation  D. examination 68. The researchers’ conclusion was based on a study of the African elephant’s      . A. DNA  B. height  C. weight  D. population 69. What are Alfred Roca’s words mainly about? A. The conservation of African elephants  B. The purpose of studying African elephant C. The way to divide African elephants into two units D. The reason for the distinction of African elephants 70.Which of the following can be the best title for the passage? A. Naturalist’ Beliefs about Elephants  B. Amazing Experiments about Elephants C. An Unexpected Finding about Elephants D. A Long Scientific Debate about Elephants 二（2011江西） Why should mankind explore space? Why should money, time and effort be spent exploring and researching something with so few apparent benefits? Why should resources be spent on space rather than on conditions and people on Earth? These are questions that, understandably, are very often asked． Perhaps the best answer lies in our genetic makeup（基因构成）as human beings． What drove our ancestors to move from the trees into the plains, and on into all possible areas and environments? The wider the spread of a species, the better its chance of survival． Perhaps the best reason for exploring space is this genetic tendency to expand wherever possible． Nearly every successful civilization has explored, because by doing so, any dangers in surrounding areas can be identified and prepared for.Without knowledge, we may be completely destroyed by the danger. With knowledge, we can lessen its effects． Exploration also allows minerals and other potential （潜在的）resources to be found．Even if we have no immediate need of them, they will perhaps be useful later． Resources may be more than physical possessions. Knowledge or techniques have been acquired through exploration．The techniques may have medical applications which can improve the length or quality of our lives． We have already benefited from other spin-offs including improvements in earthquake prediction, in satellites for weather forecasting and in communications systems．Even non-stick pans and mirrored sunglasses are by-products （副产品）of technological developments in the space industry! While many resources are spent on what seems a small return, the exploration of space allows creative, brave and intelligent members of our species to focus on what may serve to save us．While space may hold many wonders and explanations of how the universe was formed or how it works, it also holds dangers.The danger exists, but knowledge can help human beings to survive．Without the ability to reach out across space, the chance to save ourselves might not exist． While Earth is the only planet known to support life, surely the adaptive ability of humans would allow us to live on other planets．It is true that the lifestyle would be different, but human life and cultures have adapted in the past and surely could in the future． 71．Why does the author mention the questions in Paragraph1? A．To express his doubts．          B．To compare different ideas． C．To introduce points for discussion．D．To describe the conditions on Earth． 72．What is the reason for exploring space based on Paragraph2? A．Humans are nature-born to do so． B．Humans have the tendency to fight． C．Humans may find new sources of food． D．Humans don't like to stay in the same place． 73．The underlined word "spin-offs" in Paragraph 4 probably refers to______． A．survival chances          B．potential resources C．unexpected benefits        D．physical possessions 74．What makes it possible for humans to live on other planets? A．Our genetic makeup．        B．Resources on the earth． C．The adaptive ability of humans．    D．By-products in space exploration． 75．Which of the statements can best sum up the passage? A．Space exploration has created many wonders． B．Space exploration provides the best value for money． C．Space exploration can benefit science and technology. D．Space exploration may help us avoid potential problems on Earth. 三、（2011江苏） We know the famous ones—the Thomas Edisons and the Alexander Graham Bells —but what about the less famous inventors? What about the people who invented the traffic light and the windshield wiper(雨刮器)？Shouldn’t we know who they are? Joan McLean thinks so. In fact, McLean, a professor of physics at Mountain University in Range, feels so strongly about this matter that she’s developed a course on the topic. In addition to learning “who”invented“what”, however, McLean also likes her students to learn the answers to the“why” and “how” questions. According to Mclean,”When students learn the answers to these questions, they are better prepared to recognize opportunities for inventing and more motivated to give inventing a try.” Her students agree. One young man with a patent for an unbreakable umbrella is walking proof of McLean's statement. “If I had not heard the story of the windshield wiper's invention," said Tommy Lee, a senior physics major. "I never would have dreamed of turning my bad experience during a rainstorm into something so constructive." Lee is currently negotiating to sell his patent to an umbrella producer. So,just what is the story behind the windshield wiper? Well,Mary Anderson came up with the idea in 1902 after a visit to Mew York City.The day was cold and stormy, but Anderson still wanted to see the sights ,so she jumped aboard a streetcar. Noticing that the driver was struggling to see through the snow covering the windshield,she found herself wondering why there couldn’t be a built-in device for cleaning the window. Still wondering about this when she returned home to Birmingham, Alabama, Anderson started drafting out solutions. One of her ideas, a lever(操作杆)on the inside of a vehicle that would control an arm on the outside, became the first windshield wiper.    Today we benefit from countless inventions and innovations. It’s hard to imagine driving without Garrett A.Morgan’s traffic light. It’s equally impossible to picture a world without Katherine J.Blodgett’s innovation that makes glass invisible. Can you picture life without clear windows and eyeglasses? 56.By mentioning “traffic light”and “windshield wiper”,the author indicates that countless inventions are      . A.beneficial,because their inventors are famous B. beneficial,though their inventors are less  famous C.not useful, because their inventors are less famous D. not useful, though their inventors are  famous 57.Professor Joan McLean’s course aims to_____. A. add colour and variety to students’ campus life B. inform students of the windshield wiper’s invention C. carry out the requirements by Mountain University D. prepare students to try their own inventions 58．Tommy Lee’s invention of the unbreakable umbrella was ____.    A. not eventually accepted by the umbrella producer    B. inspired by the story behind the windshield wiper    C. due to his dream of being caught in a rainstorm    D. not related to Professor Joan McLean’s lectures 59. Which of the following can best serve as the title of this passage?    A  How to Help Students to Sell Their Inventions to Producers?    B  How to Design a Built-in Device for Cleaning the Window?    C  Shouldn’t We Know Who invented the Windshield Wiper?    D  Shouldn’t We Develop Invention Courses in Universities?                        四、（2011江苏）    According to the US government, wind farms off the Pacific coast could produce 900 gigawatts of electricity every year.Unfortunately,the water there is far too deep for even the tallest windmills(see picture)to touch bottom. An experiment under way off the coast of Norway,however,could help put them anywhere. The project, called Hywind,is the world’s first large-scale deepwater wind turbine(涡轮发电机).Although it uses a fairly standard 152-ton,2.3-megawatt turbine,Hywind represents totally new technology. The turbine will be fixed 213 feet above the water on a floating spar(see picture),a technology Hywind’s creator,the Norwegian company StatoilHydro,has developed recently. The steel spar, which is filled with stones and goes 328 feet below the sea surface, will be tied to the ocean floor by three cables(缆索)；these will keep the spar stable and prevent the turbine from moving up and down in the waves.Hywind’s stability(稳定性)in the cold and rough sea would prove that even the deepest corners of the ocean are suitable for wind power. If all goes according to plan, the turbine will start producing electricity six miles off the coast of southwestern Norway as early as September. To produce electricity on a large scale, a commercial wind farm will have to use bigger turbines than Hywind does, but it’s difficult enough to balance such a large turbine so high on a floating spar in the middle of the ocean. To make that turbine heavier, the whole spar’s centre of gravity must be moved much closer to the ocean's surface. To do that, the company plans to design a new kind of wind turbine, one whose gearbox(变速箱) sits at sea level rather than behind the blades (see picture ) Hywind is a test run, but the benefits for perfecting floating wind-farm technology could be extremely large. Out at sea, the wind is often stronger and steadier than close to shore, where all existing offshore windmills are planted. Deep-sea farms are invisible from land, which helps overcome the windmill-as-eyesore objection. If the technology catches on, it will open up vast areas of the planet’s surface to one of the best low-carbon power sources available. 63. The Hywind project uses totally new technology to ensure the  stability of ___. A. the cables which tie the spar to the ocean floor B. the spar which is floating in deep-sea water C. the blades driven by strong and steady sea wind D. the stones filled in the spar below the sea surface 64. To balance a bigger turbine high on a flatting spar, a new type of turbine is to be designed with its gearbox sitting ____. A. on the sea floor      B. on the spar top C. at sea level          D. behind the blades 65. Wide applications of deepwater wind power technology can ___. A. solve the technical problems of deepwater windmills B. make financial profits by producing more turbines C. settle the arguments about environmental problems D. explore low-carbon power resources available at sea 五、（2011广东） Can dogs and cats live in perfect harmony in the same home? People who are thinking about adopting a dog as a friend for their cats are worried that they will fight. A recent research has found a new recipe of success. According to the study, if the cat is adopted before the dog, and if they are introduced when still young (less than 6 months for cats, a year for dogs), it is highly probable that the two pets will get along swimmingly. Two-thirds of the homes interviewed reported a positive relationship between their cat and dog. However, it wasn’t all sweetness and light. There was a reported coldness between the cat and dog in 25% of the homes, while argression and fighting were observed in 10% of the homes. One reason for this is probably that some of their body signals were just opposite. For example, when a cat turns its head away it signals aggression, while a dog doing the same  signals submission. In homes with cats and dogs living peacefully, researchers observed a surprising behaviour. They are learning how to talk each other’s language. It is a surprise that cats can learn how to talk ‘dog’, and dogs can learn how to talk ‘Cat’. What’s interesting is that both cats and dogs have appeared to develop their intelligence. They can learn to read each other’s body signals, suggesting that the two may have more in common than was previously suspected. Once familiar with each other’s presence and body language, cats and dogs can play together, greet each other nose to nose, and enjoy sleeping together on the sofa. They can easily share the same water bowl and in some cases groom (梳理) each other. The significance of the research on cats and dogs may go beyond pets ─ to people who don’t get along, including neighbors, colleagues at work, and even world superpowers. If cats and dogs can learn to get along, surely people have a good chance. 31. The underlined word swimmingly in Paragraph 1 is closest in meaning  to ______. A. early  B. sweetly    C. quickly    D. smoothly 32. Some cats and dogs may fight when ______. A. they are cold to each other          B. they look away from each other C. they misunderstood each other’s signals  D. they are introduced at an early age 33. What is found surprising about cats and dogs? A. They eat and sleep each other.    B. They observe each other’s behaviors. C. They learn to speak each other’s language. D. They know something from each other’s voices.