考研英语七选五模拟练习
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考研英语二2020 新题型七选五With the introduction of the new question format for the English section of the 2020 National Postgraduate Entrance Examination (考研英语二), many students may feel a bit anxious about the changes. The new format, known as theSeven-Selection Five (七选五) question type, requires test takers to read a passage and choose the best option to fill in the blank from a list of seven given choices. This format aims to test students' reading comprehension skills, vocabulary knowledge, and ability to understand context.While some may find the new format challenging, it offers a valuable opportunity for students to demonstrate their English language abilities in a different way. By focusing on selecting the most appropriate option based on context clues and understanding the overall meaning of the passage, test takers can showcase their critical thinking skills and ability to analyze written materials.To excel in the Seven-Selection Five question type, students should practice reading a variety of English texts to improve their vocabulary and comprehension skills. Additionally, it is essential to pay attention to key words and phrases within the passage that can help guide the selection process. By reading actively andengaging with the text, students can become more adept at choosing the best option for each blank.Overall, the new Seven-Selection Five question type in the 2020 National Postgraduate Entrance Examination presents a unique challenge for test takers, but also offers an opportunity to showcase their English language skills in a new and innovative way. With practice and focus, students can improve their performance in this format and feel confident in their ability to succeed on the exam.。
2015年英语考研必备资料2015年考研英语新题型模拟试题及答案(1)2015年考研英语新题型模拟试题(1)一、七选五或填空式阅读Passage1English has become the world’s number one language in the 20th century. In every country where is not the native language, especially in the Third World, people must strive to learn it to the best of their abilities, if they want to participate fully in the development of their countries.41)__________.42) __________.Nonetheless, a world full of different language will disappear if the present trend in many countries to use English to replace the national or official languages in education, trade and even politics continues.43) __________ .The Third World countries that are now using English as a medium of instruction are depriving 75 per cent of their future leaders of a proper education. According to many studies, only around 20 to 25 per cent of students in these countries can manage to learn the language of instruction as well as basic subjects at the same time. Many leaders of these Third World countries are obsessed with English and for them English is everything. They seem to believe that if the students speak English, they are already knowledgeable.44) __________ .All the greatest countries of the world are great because they constantly use their own languages in all national development activities, including education. From a psychological point of view, those who are taught in their own language from the start will develop better self-confidence and self-reliance. From a linguistic point of view, the best brains can only be produced if students are educated in their own language from the start.45) __________.There is nothing wrong, however, in learning a foreign language at advanced levels of education. But the best thing to do is to have a good education in one’s native language first, then go abroad to have a university in a foreign language.A) If this situation continues, the native or official languages of these countries will certainly die within two or three generations. This phenomenon hasbeen called linguistic genocide. A language dies if it is not fully used in most activities, particularly as a medium of instruction in schools.B) Those who are taught in a foreign language form the start will tend to be imitators and lack self-confidence. They will tend to rely on foreign consultants.C) Suppose you work in a big firm and find and find English very important for your job because you often deal with foreign businessmen. Now you are looking a place where you can improve your English, especially your spoken English.D) But many people are concerned that English’s dominance will destroy native languages.E) These leaders speak and write English much better than their national languages. If these leaders deliver speeches anywhere in the world they use English and they feel more at home with it and proud of their ability as well. The citizens of their countries do not understand their leader’s speeches because they are made in a foreign language.F) Here are some advertisements about English language training from newspapers. You may find the information you need.G) A close examination reveals a great number of languages have fallen casualty to English. For example, it has wiped out Hawaiian, Welsh, Scotch Gaelic, Irish, native American languages, and many others. Luckily, some of these languages are now being revived, such as Hawaiian and Welsh, and these languages will live again, hopefully, if dedicated people continue their work of reviving them.Passage 2In 1959 the average American family paid $ 989 for a year’s supply of food. In 1972 the family paid $1,311. That was a price increase of nearly one –third. Every family has had this sort of experience. Everyone agrees that the cost of feeding a family has risen sharply. But there is less agreement when reasons for the rise are being discussed. Who is really responsible?Many blame the farmers who produce the vegetables, fruit, meat, eggs, and cheese that stores offer for sale. According to the U.S. Department of Agriculture, the farmer’s share of the $1,311 spent by the family in 1972 was $521. This was 31 percent more than the farmer had received in 1959.But farmers claim that this increase was very small compared to the increase in their cost of living. Farmers tend to blame others for the sharp rise in food prices.They particularly blame those who process the farm products after the products leave the farm. These include truck drivers, meat packers, manufacturers of packages and other food containers, and the owners of stores where food is sold. 41) __________.Of the $1,311 family food bill in 1972, middlement received $ 790, which was 33 percent more than they had received in 1959. It appears that the middlemen’s profit has increased more than farmer’s. But some economists claim that the middleman’s actual profit was very law. According to economists at the First National City Bank, the profit for meat packers and food stores amounted to less than one per cent. During the same period all other manufacturers were making a profit of more than 5 per cent.42) __________ .43) __________ .Vegetables and chicken cost more when they have been cut into pieces by someone other than the one who buys it. A family should expect to pay more when several “TV dinners” are taken home from the store. These are fully cooked meals, consisting of meat, vegetables, and sometimes desert, all arranged on a metal dish. The dish is put into the over and heated while the housewife is doing something else. Such a convenience costs money. 44) __________.Economists remind us many modern housewives have jobs outside the home. They earn money that helps to pay the family food bills. The housewife naturally has less time and energy for cooking after a day’s work. She wants to buy many kinds of food that can be put on her family’s table easily and quickly. 45) __________ .It appears that the answer to the question for rising prices is not a simple one. Producers, consumers, and middlemen all share the responsibility for the sharp rise in food costs.A) Thus, as economists point out:” Some of the basic reasons for widening food price spreads are easily traceable to the increasing use of convenience foods, which transfer much of the time and work of meal preparation from the kitchen to the food processor’s plant.”B) They are among the “middlemen” who stand between the farmer and the people who buy and eat the food. Are middlemen the ones to blame for rising food prices?C) “If the housewife wants all of these.” The economists say, “that is her privilege, but she must be prepared to pay for the services of the those who make her work easier.”D) Who then is actually responsible for the size of the bill a housewife must pay before she carries the food home from the store? The economists at First National City Bank have an answer to give housewives, but many people will not like it. These economists blame the housewife herself for the jump in food prices. They say that food costs more now because women don’t want to spend much time in the kitchen. Women prefer to buy food which has already been prepared before it reaches the market.E) However, some economists believe that controls can have negative effects over a long period of time. In cities with rent control, the city government sets the maximum rent that a landlord can charge for an apartment.F) Economists do not agree on some of the predictions. They also do not agree on the value of different decisions. Some economists support a particular decision while others criticize it.G) By comparison with other members of the economic system both farmers and middlemen have profited surprisingly little from the rise in food prices.Passage3Growing cooperation among branches of tourism has proved valuable to all concerned. Government bureaus, trade and travel association carriers and properties are all working together to bring about optimum conditions for travelers.41) __________.They distribute materials to agencies, such as journals, brochures and advertising projects.42) __________ .Tourist counselors give valuable seminars to acquaint agents with new programs and techniques in selling. 43) __________ .Properties and agencies work closely together to make the most suitable contracts, considering both the comfort of the clients and their own profitable financial arrangement. 44) __________ .45) __________.Carriers are dependent upon agencies to supply passengers, and agencies are dependent upon carriers to present them with marketable tours. All services must work together for greater efficiency, fair pricing and contented customers.A) The same confidence exists between agencies and carriers including car-rental and sight-seeing services.B) They offer familiarization and workshop tours so that in a short time agents can obtain first-hand knowledge of the tours.C) Travel operators, specialists in the field of planning, sponsor extensive research programs. They have knowledge of all areas and all carrier services, and they are experts in organizing different types of tours and in preparing effective advertising campaigns.D) As a result of teamwork, tourism is flouring in all countries.E) Agencies rely upon the good services of hotels, and , conversely, hotels rely uponagencies, to fulfill their contracts and to send them clients.F) In this way agents learn to explain destinations and to suggest different modes and combinations of travel- Planes, ships, trains, motorcoaches, car-rentals, and even car purchases.G) Consequently, the agencies started to pay more attention to the comfort of travel.Passage 4Fields across Europe are contaminated with dangerous levels of the antibiotics given to farm animals. The drugs, which are in manure sprayed onto fields as fertilizers, could be getting into our food and water, helping to create a new generation of antibiotic-resistant “superbugs “ .The warning comes from a researcher in Switzerland who looked at levels of the drugs in farm slurry.41) __________ .Some 20,000 tons antibiotics are used in the European Union and the US each year. More than half are given to farm-animals to prevent disease and promote growth. 42) __________.Most researchers assumed that humans become infected with the resistant strains by eating contaminated meat. But far more of the drugs end up in manure than in meat products, says Stephen Mueller of the Swiss Federal Institute for Environmental Science and Technology in Dubendorf. 43) __________ .With millions of tons animals manure spread onto fields of cops such as wheat and barley each year, this pathway seems an equally likely route for spreadingresistance, he said. The drugs contaminate the crops, which are then eaten. 44) __________ .Mueller is particularly concerned about a group of antibiotics called sulphonamides. 45) __________ .This concentration is high enough to trigger the development of resistance among bacteria. But vets are not treating the issue seriously.There is growing concern at the extent to which drugs, including antibiotics, are polluting the environment. Many drugs given to humans are also excreted unchanged and broken down by conventional treatment.A) They don’t easily degrade or dissolve in water. His analysis found that Swiss farm manure contains a high percentage of sulphonamides; each hectare of field could be contaminated with up to 1 kilogram of the drugs.B) And manure contains especially high levels of bugs that are resistant to antibiotics, he says.C) Animal antibiotics is still an area to which insufficient attention has been paid.D) But recent research has found a direct link between the increased use of these farmyard drugs and the appearance of antibiotic-resistant bugs that infect people.E) His findings are particularly shocking because Switzerland is one of the few countries to have banned antibiotics as growth promoters in animal feed.F) They could also be leaching into tap water pumped from rocks beneath fertilized fields.G) There is no doubt that the food and drink is always important to the health.Passage 5The main problem in discussing American popular culture is also one of its main characteristics: it won’t stay American. No matter what it is, whether it is films, food and fashion, music, casual sports or slang, it’s soon at home elsewhere in the world. There are several theories why American popular culture has had this appeal.One theory is that is has been “advertised” and marketed through American films, popular music, and more recently, television. 41) __________ .They are, after all, in competition with those produced by other countries.Another theory, probably a more common one, is that American popular culture is internationally associated with something called “ the spirit of America .”42)_________ .The final theory is less complex: American popular culture is popular because a lot of people in the world like it.Regardless of why its spreads, American popular culture is usually quite rapidly adopted and then adapted in many other countries. 43)__________ . Black leather jackets worn by many heroes in American movies could be found, a generation later, on all those young men who wanted to make this manly-look their own.Two areas where this continuing process is most clearly seen are clothing and music. Some people can still remember a time. When T-shirts, jogging clothes, tennis shoes, denim jackets, and blue jeans were not common daily wear everywhere .Only twenty years ago, it was possible to spot an American in Paris by his or her clothes. No longer so: those bright colors, checkered jackets and trousers, hats and socks which were once made fun in cartoons are back again in Paris as the latest fashion.44) __________ .The situation with American popular music is more complex because in the beginning, when it was still clearly American, it was often strongly resisted. Jazz was once thought to be a great danger to youth and their morals, and was actually outlawed in several countries. Today, while still showing its rather American roots, it has become so well established. Rock “n” roll and all its variations, country & western music, all have more or less similar histories. They were first resisted, often on America as well, as being “low-class,” and then as “a danger to our nation’s youth.”45)__________ . And then the music became accepted and was extended and was extended and developed, and exported back to the U.S.A) As a result, its American origins and roots are often quickly forgotten. “happy birthday to you,” for instance, is such an everyday song that its source, its American copyright, so to speak, is not remembered.B) But this theory fails to explain why American films, music, and television, programs are so popular in themselves.C) American in origin, informal clothing has become the world’s first truly universal style.D) The BBC, for example, banned rock and roll until 1962.E) American food has become popular around the world too.F) This spirit is variously described as being young and free, optimistic and confident, informal and disrespectful.G) It is hardly surprising that the public concern contributes a lot to the spread of their culture.Passage 6Albert Einstein, whose theories on space time and matter helped unravel the secrets of the atom and of the universe, was chosen as “Person of the Century by Time magazine on Sunday.A man whose very name is synonymous with scientific genius, Einstein has come to represent more than any other person the flowering of 20th century scientific thought that set the stage for the age of technology.“The world has changed far more in the past 100 years than in any other century in history. The reason is not political or economic, but technological-technologies that flowed directly from advances in basic science,” wrote theoretical physicist Stephen Hawking in a time essay explaining Einstein’s significance. 41) __________ .Time chose as runner-up President Franklin Roosevelt to represent the triumph of freedom and democracy over fascism, and Mahatma Gandhi as an icon for a century when civil and human rights became crucial factors in global politics.“What we saw was Franklin Roosevelt embodying the great theme of freedom’s fight against totalitarianism , Gandhi personifying the great theme of individual struggling for their rights, and Einstein being both a great genius and a great symbol of a scientific revolution that brought with it amazing technological advances that helped expand the growth of freedom,” said Time Magazine Editor Walter Isaacson.Einstein was born in Ulm , Germany in 1879. 42) __________ .He could not stomach organized learning and loathed taking exams.In 1905, however, he was to publish a theory which stands as one of the most intricate examples of human imagination in history. 43) __________ . Everything else----mass, weight, space, even time itself ----is a variable. And he offered the world his now –famous equation: energy equals mass times the speed of light squared ---E=mc244) __________ .45) __________ . Einstein did not work on the project. Einstein died in Princeton, New Jersey in 1955.A) “Indirectly, relativity paved the way for a new relativism in morality, art and politics,” Isaacson wrote in an essay explaining Time’s choices.” There was less faith in absolutes, not of time and space but also of truth and morality.”Einstein’s famous equation was also the seed that led to the development of atomic energy and weapons. In 1939, six years after he fled European fascism and settled at Princeton University, Einstein, an avowed pacifist, signed a letter to President Roosevelt urging the United States to develop an atomic bomb before Nazi Germany did.B) How he thought of the relativity theory influenced the general public’s view about Albert Einstein.C) “Clearly, no scientist better represents those advances than Albert Einstein.”D) Roosevelt heeded the advice and formed the “Manhattan Project” that secretly developed the first atomic weapon.E) In his early years, Einstein did not show the promise of what he was to become. He was slow to learn to learn to speak and did not do well in elementary school.Applicants prefer rankings, but the school for them most part do not. European schools, in particular, argue that rankings are misleading as they may use a narrow range of often-inappropriate measures which fail to reveal the true competence of unique programs. Several schools have contested and boycotted league tables. Nevertheless, the number of business schools which participate in rankings is actually growing, in part because rankings tell potential customers what they need to know. Since business schools must market to applicants as if they were consumers, most take rankings seriously.___________________________________45____________________________________A ranking is just one factor that underpins the success of schools and MBA programs. The programs must not only rank highly, they must also be known. Schools want their programs---and graduates want their degrees ---to receive instant recognition and respect. Until recently, prominence has been largely overlooked in the assessment of MBA programs, but the Internet now provides another channel of communication and reputation for schools and their market.The MBA is the principal product in the most market-oriented sector of higher education. Given the globalization of business, increased communication, and theability to deliver content to individuals wherever they are, the complexity and competitiveness of this pioneering educational marketplace can only increase.Passage 6Directions:You are going to read a list of headings and a about U.S. firms participating global competition. Choose the most suitable heading from the list A-F for each numbered paragraph (41-45).The first and last paragraphs of the are not numbered. There are two extra headings which you do not need to use. Mark your answers on ANSWER SHEET l. (10 points)A) Entering international marketsB) Satisfying global customersC) Lowering prices by manufacturing overseasD) Facing threats of global marketsE) Recognizing the constraints of global marketsF) Being better than competitionG) Coordinating marketing activitiesWe live in an increasingly interdependent world, and perhaps someday we will live in a “world without borders”, to borrow from the title of a provocative book of 1970s. Globalization is of great significance to both poor and rich nations, since competition now spans beyond borders._____________________________41__________________________________________“The world is too much with us,” said Wordsworth. That could be the main complaint of many U.S. businesses that see themselves threatened by increases in imported goods. Imports were only 1 percent of the U.S. gross national products (GNP) in 1954; they were 6 percent of GNP in 1964 and 10 percent in 1984. The interdependence suggested by such terms as global village and world economy is being recognized by business managers. Therefore, many more U.S. firms, whether they like it or not, will be forced to become part of world markets and global competition. Meanwhile, other nations such as Japan and Germany have had open economies for some time. Their firms are more accustomed to selling in international markets. Hence, U.S. firms have some catching up to do to compete effectively and gain market share in world markets.______________________________42_____________________________________To compete in world markets, firms must have an in depth understanding of customers’ needs. If customers needs differ dramatically across countries and regions, a company must consider how to adapt its products and various elements of the marketing mix to customer needs. If prices must be lowered, the company needs to consider how to design a product to lower manufacturing costs and decide whether to manufacture the product at home or overseas to achieve lower cost. Awell-articulated distribution and logistics system is needed to make goods and services available at the point of sale in sufficient quantities. Firms also need to develop global customer database and information systems to understand and respond to customer needs and purchasing________________________________43_______________________________________Firms must contend with both domestic and global competition. Global competitors could include large multinational and state-owned enterprises that might be market share oriented rather than profit oriented as well as small local firms with other goals. Long-term success comes in part from monitoring, assessing and responding to actions by all sorts of competitors, especially through understanding the competitive and comparative advantages enjoyed by competitors, and finally ensuring success by offering more value, developing superior brand image and product positioning, broader product range, lower prices, higher quality and superior distribution services to more effectively meet customers’ need._________________________________44________________________________________International marketing creates a new level of complexity. In order to face this challenge, firms must consider staffing and allocating responsibilities across marketing units in different countries, and deciding which decision to decentralize or to control from headquarters, whether to develop standardized campaigns and plans, and how much local responsiveness is appropriate._________________________________45______________________________________As firms attempt to market in the international arena, they not only face challenges from different competitors, but need to cope with cultural and economic differences that exist in the marketing infrastructure, such as the financial regulations imposed b local governments, and the impact of government policies, especially protectionist and other policies that may unfairly benefit competitors and create difficulty in market entry. To level the playing field, a firm may decide to begin manufacturing overseas to lower its costs and match the lower prices of strong international competition. Very often, a firm may not find it feasible to go aloneinto foreign markets. In this case, its international marketing endeavor becomes more complex as it joins with a local partner that has specialized knowledge of a specific market and its customers. Some firms find that local partners can force them to change the way they do business. A local partner may insist that the firm accept payment in kind: orange juice or wine in return for machinery, which means a firm has to peddle orange juice or wine around the world.Although the global market is attractive, U.S. firms have been slow to take advantage of it. The United States has always been one of the world’s largest markets. However, ignoring foreign markets and foreign competition has two dangers for U.S. companies: losing market share at home and not profiting from higher growth in markets overseas.2015年考研英语新题型模拟试题答案(1)一、七选五Passage 1 DGAEBPassage 2 BGDACPassage 3 CBFEAPassage 4 EDBFAPassage 5 BFACDPassage 6 CEFADPassage 7 FCEGAPassage 8 DCAFB二、排序题Passage 1 EBCGFPassage 2 FCAGBPassage 3 AGEBDPassage 4 EFBCGPassage 5 BFGAD Passage 6 DFEGC Passage 7 EFBCD Passage 8 BFDGA 三、标题匹配题Passage 1 ECDFA Passage 2 CAFBD Passage 3 BFADC Passage 4 DCGBE Passage 5 DFBCG Passage 6 ABFGE。
1. [ ] The Importance of Vocabulary2. [ ] Effective Reading Strategies3. [ ] Key Tips for Writing a Great Essay4. [ ] Mastering Grammar in Context5. [ ] Strategies for Listening Comprehension6. [ ] Techniques for Effective Speaking7. [ ] Time Management for the ExamThe Importance of VocabularyA strong vocabulary plays a crucial role in achieving success in the English language section of the postgraduate entrance examination. Effective Reading StrategiesDeveloping effective reading strategies is essential for comprehending complex passages and extracting relevant information quickly.Key Tips for Writing a Great EssayWriting a great essay requires careful planning, organizing ideas coherently, and employing appropriate vocabulary and grammar structures. Mastering Grammar in ContextUnderstanding and mastering grammar in context is vital for clear and accurate communication, as well as for avoiding common errors in writing and speaking.Strategies for Listening ComprehensionStrengthening listening comprehension skills involves active listening, note-taking, and familiarizing oneself with various accents and speech patterns.Techniques for Effective SpeakingDeveloping effective speaking skills involves practicing pronunciation, intonation, and using appropriate expressions and gestures to convey ideas confidently.Time Management for the ExamEffectively managing time during the exam is crucial for completing all sections within the allocated time, balanced preparation, and avoiding unnecessary stress.In conclusion, preparing for the postgraduate English entrance examination involves focusing on vocabulary building, improving reading strategies, refining essay writing skills, mastering grammar, enhancing listening comprehension, developing effective speaking techniques, and managing time efficiently during the exam. By following these guidelines, candidates can increase their chances of achieving desired results and securing admission to their desired postgraduate programs.。
2024考研英语英语一七选五In the year 2024, the Graduate Entrance Examination (GRE) for English, specifically the English I section, has introduced a new format: the "Seven Choices, Five Selections" (7C5S). This innovative approach is designed to test the candidates' ability to comprehend and analyze English texts more effectively.The 7C5S section presents examinees with seven options, out of which they must carefully select five that best fit into a given passage. This task requires a deep understanding of the context, as well as the ability to discern the nuances of language and the logical flow of the text.To excel in this section, candidates must develop a strategic approach. First, they should read the passage thoroughly to grasp its overall meaning and structure. Next, they should analyze the options provided, looking for keywords and phrases that align with the passage's theme and tone.It is also important to pay attention to the coherence and transition between the selected sentences and the rest of the passage. The chosen sentences should not only make sense individually but also contribute to the overall narrative or argument of the text.Moreover, candidates should practice time management, asthis section can be time-consuming. They should allocate sufficient time to read and understand the passage and options, but also ensure they have enough time to reviewtheir choices before submitting their answers.In conclusion, the 7C5S section of the 2024 GRE English I exam is a challenging component that demands a high level of language proficiency and critical thinking. With diligent preparation, including extensive reading, practice, and strategic planning, candidates can enhance their chances of success in this section.。
考研英语二2020 新题型七选五Title: New Format of GRE English II in 2020 - Seven Choose FiveWith the ever-evolving landscape of standardized testing, the GRE English II exam has introduced a new format called Seven Choose Five. This new format aims to challenge test-takers in a different way and assess their critical thinking skills and ability to synthesize information from various sources.In the Seven Choose Five format, test-takers are presented with seven short passages, each with a corresponding question or prompt. However, instead of answering all seven questions, test-takers are only required to choose and answer five of them. This means that test-takers must carefully read through each passage, analyze the information presented, and determine which questions they feel most confident in answering.The introduction of the Seven Choose Five format has been met with mixed reactions from test-takers. Some feel that it provides a more streamlined and focused approach to the exam, allowing them to prioritize and choose questions based on their strengths. Others, however, find the format to be morechallenging as it requires them to make strategic decisions about which questions to answer and which to skip.One of the key benefits of the Seven Choose Five format is that it encourages test-takers to think critically about the information presented in each passage and make informed decisions about which questions are most relevant to their understanding of the material. This not only tests their ability to comprehend and analyze complex texts but also their ability to prioritize and manage their time effectively during the exam.Overall, the introduction of the Seven Choose Five format to the GRE English II exam in 2020 represents a significant shift towards a more dynamic and engaging testing experience. By challenging test-takers to make strategic decisions about which questions to answer, this new format aims to assess their critical thinking skills and ability to synthesize information in a more comprehensive and nuanced way. As test-takers continue to adapt to this new format, it will be interesting to see how it shapes the future of standardized testing and the assessment of English language proficiency.。
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考研英语七选五模拟练习 Directions: In the following text, some sentences have been removed. For Questions 41-45, choose the most suitable one from the list A-G to fit into each of the numbered blanks. There are two extra choices, which do not fit in any of the blanks. Mark your answers on ANSWER SHEET 1. (10 points) Long before Man lived on the Earth, there were fishes, reptiles, birds, insects, and some mammals. Although some of these animals were ancestors of kinds living today, others are now extinct, that is, they have no descendants alive now. 41) ________ Very occasionally the rocks show impression of skin, so that, apart from color, we can build up a reasonably accurate picture of an animal that died millions of years ago. The kind of rock in which the remains are found tells us much about the nature of the original land, often of the plants that grew on it, and even of its climate. 42) ________. Nearly all of the fossils that we know were preserved in rocks formed by water action, and most of these are of animals that lived in or near water. Thus it follows that there must be many kinds of mammals, birds, and insects of which we know nothing. 43) ________ There were also crab-like creatures, whose bodies were covered with a horny substance. The body segments each had two pairs of legs, one pair for walking on the sandy bottom, the other for swimming. The head was a kind of shield with a pair of compound eyes, often with thousands of lenses. They were usually an inch or two long but some were 2 feet. 44) ________. Of these, the ammonites are very interesting and important. They have a shell composed of many chambers, each representing a temporary home of the animal. As the young grew larger it grew a new chamber and sealed off the previous one. Thousands of these can be seen in the rocks on the Dorset Coast. 45) ________. About 75 million years ago the Age of Reptiles was over and most of the groups died out. The mammals quickly developed, and we can trace the evolution of many familiar animals such as the elephant and horse. Many of the later mammals, though now extinct, were known to primitive man and were featured by him in cave paintings and on bone carvings. [A]The shellfish have a long history in the rock and many different kinds are known. [B]Nevertheless, we know a great deal about many of them because their bones and shells have been preserved in the rocks as fossils. From them we can tell their size and shape, how they walked, the kind of food they ate. [C]The first animals with true backbones were the fishes, first known in the rocks of 375 million years ago. About 300 million years ago the amphibians, the
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animals able to live both on land and in water, appeared. They were giant, sometimes 8 feet long, and many of them lived in the swampy pools in which our coal seam, or layer, formed. The amphibians gave rise to the reptiles and for nearly 150 million years these were the principal forms of life on land, in the sea, and in the air. [D]The best index fossils tend to be marine creatures. These animals evolved rapidly and spread over large areas of the world. [E]The earliest animals whose remains have been found were all very simple kinds and lived in the sea. Later forms are more complex, and among these are the sea-lilies, relations of the star-fishes, which had long arms and were attached by a long stalk to the sea bed, or to rocks. [F]When an animal dies, the body, its bones, or shell, may often be carried away by streams into lakes or the sea arid there get covered up by mud. If the animal lived in the sea its body would probably sink and be covered with mud. More and more mud would fall upon it until the bones or shell become embedded and preserved. [G]Many factors can influence how fossils are preserved in rocks. Remains of an organism may be replaced by minerals, dissolved by an acidic solution to leave only their impression, or simply reduced to a more stable form. 七(六)选五 41. B 42. F 43. E 44. A 45. C
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小提示:目前本科生就业市场竞争激烈,就业主体是研究生,在如今考研竞争日渐激烈的情况下,我们想要不在考研大军中变成分母,我们需要:早开始+好计划+正确的复习思路+好的辅导班(如果经济条件允许的情况下)。2017考研开始准备复习啦,早起的鸟儿有虫吃,一分耕耘一分收获。加油!