2009真题与答案
2009年山东省高考文科综合真题及答案
2009年普通高等学校招生全国统一考试（山东卷）文科综合测试试题第1卷（必做，共I00分）图1是世界某区域农业地带分布图。
读图回答1—2题1. 农业地带沿0°经线变化所反映出的地域分异规律形成的基础是A水分 B热量C地形 D土壤2. 甲地区是世界上著名的棉花产区，其形成的主导因素是A 光照 B热量C 水源 D土壤【解析】本题主要借助非洲区域农业地带分布图，考查自然地域分异规律与尼罗河河谷农业。
1.农业地带沿0°经线变化反映地域分异规律，关键抓住沿0°经线变化是从赤道向两极的地域分异规律则以热量为基础。
2. 首先，明确甲区域是尼罗河三角洲及棉花的生长习性喜温、好光是棉花是喜温作物，一生都需要较高的温度；其次，20世纪50年代以来，世界棉花集中产区逐步向干旱、半干旱地区转移，主要由于这里光照充足，灌溉条件较好，病虫害少，棉花品质优良，单产也较高。
如中亚地区的河谷平原，美国西南部地区各州，埃及的尼罗河谷地等；最后，棉花产区是在干旱、半干旱地区共性都有光照充足，关键是否能形成棉花产区主要考虑灌溉水源有保证的区域，则尼罗河谷地形成棉花产区的主导因素是水源。
答案：1.B 2.C图2为某气象台发布的墨西哥湾及邻近海区飓风近地面天气形势图。
读图回答3-4题。
3. 此时降雨集中分布在飓风东北部的主要原因是A气流上升速度快B形成锋面雨D气温较低4. 预计飓风中心经过70小时到达A市。
到达A市时，所在地的区时为A 8日13时B 8 日 23时C 9日13时D 9日23时【解析】本题主要借助墨西哥湾及邻近海区飓风近地面天气形势图，考查气旋、等压线和区时的计算。
3.结合题与图明确降雨集中分布在飓风东北部，从图上分析可知，飓风东北部等压线比其他区域等压线密集，气压梯度力大，风速大则气流上升速度快，降水多。
4.看准图中9月6日6时（世界时）、A市所在的区时是解题的关键。
首先，把世界时换算成A市的区时，从A市的位置来看，刚好处于85°与80°之间且偏向80°或者大体处于82.5°与80°之间，则A市处于西五区；其次，计算A市的区时，西五区处于世界时即零时区的西侧相减得9月6日1时；最后，由于预计飓风中心经过70小时达到A市，所以9月6日1时再加70小时得9月8日23时。
2009年考研政治真题及其答案
2009年全国硕士研究生入学统一考试政治理论试题一、单项选择题：1~16小题，每小题1分，共16分。
下列每题给出的四个选项中，只有一个选项是符合题目要求的。
请在答题卡上将所选项的字母涂黑。
1. 物质和意识的对立只有在非常有限的范围内才有绝对的意义，超过这个范围便是相对的了，这个范围是指A.物质和意识何者为第一性 B．物质和意识是否具有统一性C．物质和意识何者更为重要 D．物质和意识何者与社会生活的关系更密切2. 1978年关于真理标准大讨论是一场新的思想解放运动。
实践之所以成为检验真理的唯一标准是由A．真理的主观性和实践的客观性所要求的 B．真理的相对性和实践的决定性所预设的C．真理的属性和实践的功能所规定的 D．真理的本性和实践的特点所决定的3. 近年来马克思的《资本论》在西方的一些国家销量大增。
列宁曾说，马克思的《资本论》的成就之所以如此之大，是由于这本书使读者看到整个资本主义社会形态是个活生生的形态，既有“骨骼”，又有“血肉”。
人类社会作为一种活的有机体，其“骨骼”系统是指A. 地理环境、人口因素和生产方式等社会物质生活条件B．与一定的生产力相适应的生产关系C．建立在一定经济基础之上的政治法律制度及设施D．由政治法律思想、道德、宗教、哲学等构成的社会意识形态4. 卢梭在《论人类不平等的起源和基础》中说道：“我认为，在人类的一切知识中，最有用但也最不完善的知识就是关于人的知识。
”马克思的唯物史观破解了人是什么这一“斯芬克斯之谜”，马克思在《关于费尔巴哈的提纲》中指出，人的本质在其现实性上是A. 自然属性和社会属性的内在统一B．所有人共同属性的概括C．一切社会关系的总和D．自由理性的外化5. 流通中的货币需要量是考察经济生活运行的重要指标，假设某国去年的商品价格总额为24万亿元，流通需要量为3亿元，若今年该国商品价格总额增长10%，其他条件不变，今年流通中需要的货币量为A. 4.2亿元B. 3.5亿元C.3.3亿元D. 2.4亿元6.国家垄断资本主义条件下，政府对经济生活进行干预和调节的实质是A.维护垄断资产阶级的整体利益和长远利益B.维持资本主义经济稳定增长C.消除或防止经济危机的爆发D．提高资本主义社会的整体福利水平7．某钢铁厂因铁矿石价格上涨，增加了该厂的预付资本数量，这使得该厂的资本构成发生了变化，所变化的资本构成是A．资本技术构成B．资本价值构成C．资本物质构成D．资本有机构成8．1925年毛泽东在《中国社会各阶级的分析》中指出，中国过去一切革命斗争成效甚少的主要原因A．没有找到革命的新道路 B．没有扩大民主主义宣传C．没有到群众中做实际的调查 D．没有团结真正的朋友以攻击真正的敌人9．延安时期，毛泽东写下了著名的《实践论》《矛盾论》主要是为了克服党内严重的A．经验主义B．冒险主义C．机会主义D．教条主义10．中共七届二中全会，党制定和执行新民主主义经济建设的方针是A．既反对保守又反对冒进，在综合平衡中稳步前进 B．公私兼顾、劳资双利、城乡互助、内外交流 C．调整、巩固、充实、提高 D．实现速度、结构、质量的统一11．科学发展观的根本方法是A．把发展作为第一要义B．以人为本C．统筹兼顾D．全面协调发展12．社会主义农村建设的中心环节是A．生产发展B．生活宽裕C．乡风文明D．管理民主13.马克思主义中国化理论成果的精髓是A．理论联系实际B．解放思想C．实事求是D．与时俱进14．2008年5月28日，中共中央总书记胡锦涛和中国国民党主席吴伯雄在北京人民大会堂举行了两党在新形势下的首次会谈，此次会议A．就促进两岸关系改善和发展达成广泛共识B．开启了国共两党对话先声C．发布了“两岸和平发展共同远景”D．签署了《海峡两岸包机会谈纪要》15.2008年9月25日，我国神州七号航天飞船成功飞入太空实现的是A．载人飞行B．绕月探测C．天地对话D．出舱活动16.在2008年4月中旬举行的尼泊尔制宪会议选举上，一举成为第一大党的是A．尼泊尔共产党（联合马列）B．尼泊尔共产党（毛主义）C．尼泊尔大会党D．尼泊尔民族主义党二、多项选择题：17~33题，每小题2分，共34分。
2009年考研英语二真题试卷(后附答案详解)
2009年考研英语二真题试卷(后附答案详解) Section I Use of EnglishRead the following text. Choose the best word(s) for each numbered blank and mark A, B, C or D on ANSWER SHEET 1. (10 points)Research on animal intelligence always makes me wonder just how smart humans are. 1 the fruit-fly experiments described in Carl Zimmer’s piece in the Science Times on Tuesday. Fruit flies who were taught to be smarter than the average fruit fly 2 to live shorter lives. This suggests that 3 bulbs burn longer, that there is an 4 in not being too terrifically bright.Intelligence, it 5 out, is a high-priced option. It takes more upkeep, burns more fuel and is slow 6 the startingline because it depends on learning — a gradual 7 —instead of instinct. Plenty of other species are able to learn, and one of the things they’ve apparently learned is when to 8 .Is there an adaptive value to 9 intelligence? That’s the question behind this new research. I like it. Instead ofcasting a wistful glance 10 at all the species we’ve left in the dust I.Q.-wise, it implicitly asks what the real 11 of our own intelligence might be. This is 12 the mind of every animal I’ve ever met.Research on animal intelligence also makes me wonder what experiments animals would 13 on humans if they had the chance. Every cat with an owner, 14 , is running a small-scale study in operant conditioning. we believe that 15 animals ran the labs, they would test us to 16 the limits of our patience, our faithfulness, our memory for terrain. They would try to decide what intelligence in humans is really 17 , not merely how much of it there is. 18 , they would hope to study a 19 question: Are humans actually aware of the world they live in? 20 the results are inconclusive.1. [A] Suppose [B] Consider [C] Observe [D] Imagine2. [A] tended [B] feared [C] happened [D] threatened3. [A] thinner [B] stabler [C] lighter [D] dimmer4. [A] tendency [B] advantage [C] inclination [D] priority5. [A] insists on [B] sums up [C] turns out [D] puts forward6. [A] off [B] behind [C] over [D] along7. [A] incredible [B] spontaneous [C]inevitable [D] gradual8. [A] fight [B] doubt [C] stop [D] think9. [A] invisible [B] limited [C] indefinite [D] different10. [A] upward [B] forward [C] afterward [D] backward11. [A] features [B] influences [C] results [D] costs12. [A] outside [B] on [C] by [D] across13. [A] deliver [B] carry [C] perform [D] apply14. [A] by chance [B] in contrast [C] as usual [D] for instance15. [A] if [B] unless [C] as [D] lest16. [A] moderate [B] overcome [C] determine [D] reach17. [A] at [B] for [C] after [D] with18. [A] Above all [B] After all [C] However [D] Otherwise19. [A] fundamental [B] comprehensive [C] equivalent [D] hostile20. [A] By accident [B] In time [C] So far [D] Better still Section II Reading ComprehensionPart ADirections:Read the following four texts. Answer the questions below each text by choosing A, B, C or D. Mark your answers on ANSWER SHEET 1. (40 points)Text1Habits are a funny thing. We reach for them mindlessly, setting our brains on auto-pilot and relaxing into the unconscious comfort of familiar routine. “Not choice, but habit rules the unreflecting herd,” William Wordsworth said in the 19th century. In the ever-changing 21st century, even the word “habit” carries a negative connotation.So it seems antithetical to talk about habits in the same context as creativity and innovation. But brain researchers have discovered that when we consciously develop new habits, we create parallel synaptic paths, and evenentirely new brain cells, that can jump our trains of thought onto new, innovative tracks.But don’t bother trying to kill off old habits; once those ruts of procedure are worn into the hippocampus, they’re there to stay. Instead, the new habits we deliberately ingrain into ourselves create parallel pathways that can bypass those old roads.“The first thing needed for innovation is a fascination with wonder,” says Dawna Markova, author of “The Open Mind” and an ex ecutive change consultant for Professional Thinking Partners. “But we are taught instead to‘decide,’ just as our president calls himself ‘the Decider.’ ” She adds, however, that “to decide is tokill off all possibilities but one. A good innovationalthin ker is always exploring the many other possibilities.”All of us work through problems in ways of which we’re unaware, she says. Researchers in the late 1960 coveredthat humans are born with the capacity to approach challenges in four primary ways: analytically, procedurally, relationally (or collaboratively) and innovatively. At puberty, however, the brain shuts downhalf of that capacity, preserving only those modes of thought that have seemed most valuable during the first decade or so of life.The current emphasis on standardized testing highlights analysis and procedure, meaning that few of us inherently use our innovative and collaborative modes of thought. “This breaks the major rule in the American belief system —that anyone can do anything,” expla ins M. J. Ryan, author of the 2006 book “This Year I Will...” and Ms. Markova’s business partner. “That’s a lie that we have perpetuated, and it fosters commonness. Knowing whatyou’re good at and doing even more of it creates excellence.” This is where de veloping new habits comes in.21. The view of Wordsworth habit is claimed by beingA. casualB. familiarC. mechanicalD. changeable.22. The researchers have discovered that the formation of habit can beA. predictedB. regulatedC. tracedD. guided23.” ruts”(in line one, paragraph 3) has closest meaning toA. tracksB. seriesC. characteristicsD. connections24. Ms. Markova’s comments suggest that the practice of standard testing ?A, prevents new habits form being formedB, no longer emphasizes commonnessC, maintains the inherent American thinking modelD, complies with the American belief system25. Ryan most probably agree thatA. ideas are born of a relaxing mindB. innovativeness could be taughtC. decisiveness derives from fantastic ideasD. curiosity activates creative mindsText 2It is a wise father that knows his own child, but today a man can boost his paternal (fatherly) wisdom – or at least confirm that he’s the kid’s dad. All he needs to do is shell our $30 for paternity testing kit (PTK) at his local drugstore – and another $120 to get the results.More than 60,000 people have purchased the PTKs since they first become available without prescriptions last years, according to Doug Fog, chief operating officer of Identigene, which makes the over-the-counter kits. More than two dozen companies sell DNA tests Directly to the public , ranging in price from a few hundred dollars to more than $2500.Among the most popular : paternity and kinship testing , which adopted children can use to find their biological relatives and latest rage a many passionate genealogists-and supports businesses that offer to search for afamily’s geographic roots .Most tests require collecting cells by webbing saliva in the mouth and sending it to the company for testing. All tests require a potential candidate with whom to compare DNA.But some observers are skeptical, “There is a kind of false precision being hawked by people claiming they are doing ancestry testing,” says Trey Duster, a New York University sociologist. He notes that each individual has many ancestors-numbering in the hundreds just a few centuries back. Yet most ancestry testing only considers a single lineage, either the Y chromosome inherited through men in a father’s line or mitochondrial DNA, w hich a passed down only from mothers. This DNA can reveal genetic information about only one or two ancestors, even though, for example, just three generations back people also have six other great-grandparents or, four generations back, 14 other great-great-grandparents.Critics also argue that commercial genetic testing is only as good as the reference collections to which a sample is compared. Databases used by some companies don’t rely on data collected systematically but rather lump togetherinformation from different research projects. This means that a DNA database may differ depending on the company that processes the results. In addition, the computer programs a company uses to estimate relationships may be patented and not subject to peer review or outside evaluation.26.In paragraphs 1 and 2 , the text shows PTK’s___________.[A]easy availability[B]flexibility in pricing[C] successful promotion[D] popularity with households27. PTK is used to __________.[A]locate one’s birth place[B]promote genetic research[C] identify parent-child kinship[D] choose children for adoption28. Skeptical observers believe that ancestry testing fails to__________.[A]trace distant ancestors[B] rebuild reliable bloodlines[C] fully use genetic information[D] achieve the claimed accuracy29. In the last paragraph ,a problem commercial genetic testing faces is __________.[A]disorganized data collection[B] overlapping database building30. An appropriate title for the text is most likely tobe__________.[A]Fors and Againsts of DNA testing[B] DNA testing and It’s problems[C]DNA testing outside the lab[D] lies behind DNA testingText 3The relationship between formal education and economic growth in poor countries is widely misunderstood by economists and politicians alike progress in both area is undoubtedly necessary for the social, political and intellectual development of these and all other societies; however, the conventional view that education should be one of the very highest priorities for promoting rapid economic development in poor countries is wrong. We are fortunate that is it, because new educational systems there and putting enough people through them to improve economic performance would require two or three generations. The findings of a research institution have consistently shown that workers in all countries can be trained on the job to achieve radical higher productivity and, as a result, radically higher standards of living.Ironically, the first evidence for this idea appeared in the United States. Not long ago, with the country entering a recessing and Japan at its pre-bubble peak. The U.S. workforce was derided as poorly educated and one of primary cause of the poor U.S. economic performance. Japan was, andremains, the global leader in automotive-assembly productivity. Yet the research revealed that the U.S. factories of Honda Nissan, and Toyota achieved about 95 percent of the productivity of their Japanese countere pants a result of the training that U.S. workers received on the job.More recently, while examing housing construction, the researchers discovered that illiterate, non-English- speaking Mexican workers in Houston, Texas, consistently met best-practice labor productivity standards despite the complexity of the building i ndustry’s work.What is the real relationship between education and economic development? We have to suspect that continuing economic growth promotes the development of education even when governments don’t force it. After all, that’s how education got started. When our ancestors were hunters and gatherers 10,000 years ago, they didn’t have time to wonder much about anything besides finding food. Only when humanity began to get its food in a more productive way was there time for other things.As education improved, humanity’s productivity potential, they could in turn afford more education. This increasingly high level of education is probably a necessary, but not a sufficient, condition for the complex political systems required by advanced economic performance. Thus poor countries might not be able to escape their poverty traps without political changes that may be possible only with broader formal education. A lack of formal education, however, doesn’t constrain the ability of the developing world’s workf orce to substantially improve productivityfor the forested future. On the contrary, constraints on improving productivity explain why education isn’t developing more quickly there than it is.31. The author holds in paragraph 1 that the important of education in poor countries ___________.[A] is subject groundless doubts[B] has fallen victim of bias[C] is conventional downgraded[D] has been overestimated32. It is stated in paragraph 1 that construction of a new education system __________.[A]challenges economists and politicians[B]takes efforts of generations[C] demands priority from the government[D] requires sufficient labor force33.A major difference between the Japanese and U.S workforces is that __________.[A] the Japanese workforce is better disciplined[B] the Japanese workforce is more productive[C]the U.S workforce has a better education[D] ]the U.S workforce is more organize34. The author quotes the example of our ancestors to show that education emerged __________.[A] when people had enough time[B] prior to better ways of finding food[C] when people on longer went hung[D] as a result of pressure on government35. According to the last paragraph , development of education __________.[A] results directly from competitive environments[B] does not depend on economic performance[C] follows improved productivity[D] cannot afford political changesText 4The most thoroughly studied in the history of the new world are the ministers and political leaders of seventeenth-century New England. According to the standard history of American philosophy, nowhere else in colonial America was “So much important attached to intellectual pursuits ” According to many books and articles, New England’s leaders established the basic themes and preoccupations of an unfolding, dominant Puritan tradition in American intellectual life.To take this approach to the New Englanders normally mean to start with the Puritans’ theological innovations and their distinctive ideas about the church-important subjects that we may not neglect. But in keeping with our examination of southern intellectual life, we may consider the original Puritans as carriers of European culture adjusting to New world circumstances. The New England colonies were the scenes of important episodes in the pursuit of widely understood ideals of civility and virtuosity.The early settlers of Massachusetts Bay included men of impressive education and influence in England. `Besides the ninety or so learned ministers who came to Massachusetts church in the decade after 1629,There were political leaders like John Winthrop, an educated gentleman, lawyer, and official of the Crown before he journeyed to Boston. There men wrote and published extensively, reaching both New World and Old World audiences, and giving New England an atmosphere of intellectual earnestness.We should not forget , however, that most New Englanders were less well educated. While few crafts men or farmers,let alone dependents and servants, left literary compositions to be analyzed, The in thinking often had a traditional superstitions quality. A tailor named John Dane, who emigrated in the late 1630s, left an account of his reasons for leaving England that is filled with signs. sexual confusion, economic frustrations , and religious hope-all name together in a decisive moment when he opened the Bible, told his father the first line he saw would settle his fate, and read the magical words: “come out from among them, touch no unclean thing , and I will be your God and you sh all be my people.” One wonders what Dane thought of the careful sermons explaining the Bible that he heard in puritan churched.Mean while , many settles had slighter religious commitments than Dane’s, as one clergyman learned in confronting folk along the coast who mocked that they had not come to the New world for religion . “Our main end was to catch fish. ”36. The author notes that in the seventeenth-century New England___________.[A] Puritan tradition dominated political life.[B] intellectual interests were encouraged.[C] Politics benefited much from intellectual endeavors.[D] intellectual pursuits enjoyed a liberal environment.37. It is suggested in paragraph 2 that NewEnglanders__________.[A] experienced a comparatively peaceful early history.[B] brought with them the culture of the Old World[C] paid little attention to southern intellectual life[D] were obsessed with religious innovations38. The early ministers and political leaders in Massachusetts Bay__________.[A] were famous in the New World for their writings[B] gained increasing importance in religious affairs[C] abandoned high positions before coming to the New World[D] created a new intellectual atmosphere in New England39. The story of John Dane shows that less well-educated New Englanders were often __________.[A] influenced by superstitions[B] troubled with religious beliefs[C] puzzled by church sermons[D] frustrated with family earnings40. The text suggests that early settlers in NewEngland__________.[A] were mostly engaged in political activities[B] were motivated by an illusory prospect[C] came from different backgrounds.[D] left few formal records for later referencePart BDirections:Directions: In the following text, some sentences have been removed. For Questions (41-45), choose the most suitableone from the list A-G to fit into each of the numbered blank. There are two extra choices, which do not fit in any of the gaps.Mark your answers on ANSWER SHEET 1. (10 points)Coinciding with the groundbreaking theory of biological evolution proposed by British naturalist Charles Darwin in the 1860s, British social philosopher Herbert Spencer put forward his own theory of biological and cultural evolution. Spencer argued that all worldly phenomena, including human societies, changed over time, advancing toward perfection. 41.____________.American social scientist Lewis Henry Morgan introduced another theory of cultural evolution in the late 1800s. Morgan, along with Tylor, was one of the founders of modern anthropology. In his work, he attempted to show how all aspects of culture changed together in the evolution of societies.42._____________.In the early 1900s in North America, German-born American anthropologist Franz Boas developed a new theory of culture known as historical particularism. Historical particularism, which emphasized the uniqueness of allcultures, gave new direction to anthropology.43._____________ .Boas felt that the culture of any society must be understood as the result of a unique history and not as one of many cultures belonging to a broader evolutionary stage or type of culture. 44._______________.Historical particularism became a dominant approach to the study of culture in American anthropology, largely through the influence of many students of Boas. But a number of anthropologists in the early 1900s also rejected the particularist theory of culture in favor of diffusionism. Some attributed virtually every important cultural achievement to the inventions of a few, especially gifted peoples that, according to diffusionists, then spread to other cultures. 45.________________.Also in the early 1900s, French sociologist ?mile Durkheim developed a theory of culture that would greatly influence anthropology. Durkheim proposed that religious beliefs functioned to reinforce social solidarity. An interest in the relationship between the function of society andculture—known as functionalism—became a major theme in European, and especially British, anthropology.[A] Other anthropologists believed that cultural innovations, such as inventions, had a single origin and passed from society to society. This theory was known as diffusionism.[B] In order to study particular cultures as completely as possible, Boas became skilled in linguistics, the study of languages, and in physical anthropology, the study of human biology and anatomy.[C] He argued that human evolution was characterized by a struggle he called the “survival of the fittest,” in which weaker races and societies must eventually be replaced by stronger, more advanced races and societies. [D] They also focused on important rituals that appeared to preserve a people’s social structure, such as initiation ceremonies that formally signify children’s entrance into adulthood.[E] Thus, in his view, diverse aspects of culture, such as the structure of families, forms of marriage, categories ofkinship, ownership of property, forms of government, technology, and systems of food production, all changed as societies evolved.[F]Supporters of the theory viewed as a collection of integrated parts that work together to keep a society functioning.[G] For example, British anthropologists Grafton Elliot Smith and W. J. Perry incorrectly suggested, on the basis of inadequate information, that farming, pottery making, and metallurgy all originated in ancient Egypt and diffused throughout the world. In fact, all of these cultural developments occurred separately at different times in many parts of the world.Part CDirections:Read the following text carefully and then translate the underlined segments into Chinese. Your translation should be written carefully on ANSWER SHEET 2. (10 points)There is a marked difference between the education which every one gets from living with others, and the deliberate educating of the young. In the former case the education is incidental; it is natural and important, but it is not the express reason of the association.46It may be said that the measure of the worth of any social institution is itseffect in enlarging and improving experience; but this effect is not a part of its original motive. Religious associations began, for example, in the desire to secure the favor of overruling powers and to ward off evil influences; family life in the desire to gratify appetites and secure family perpetuity; systematic labor, for the most part, because of enslavement to others, etc. 47Only gradually was the by-product of the institution noted, and only more gradually still was this effect considered as a directive factor in the conduct of the institution. Even today, in our industrial life, apart from certain values of industriousness and thrift, the intellectual and emotional reaction of the forms of human association under which the world's work is carried on receives little attention as compared with physical output.But in dealing with the young, the fact of associationitself as an immediate human fact, gains in importance.48 While it is easy to ignore in our contact with them the effect of our acts upon their disposition, it is not so easy as in dealing with adults. The need of training is too evident; the pressure to accomplish a change in their attitude and habits is too urgent to leave these consequences wholly out of account. 49Since our chief business with them is to enable them to share in a common life we cannot help considering whether or no we are forming the powers which will secure this ability.If humanity has made some headway in realizing that the ultimate value of every institution is its distinctively human effect we may well believe that this lesson has been learned largely through dealings with the young.50 We are thus led to distinguish, within the broad educational process which we have been so far considering, a more formal kind of education -- that of direct tuition or schooling. In undeveloped social groups, we find very little formal teaching and training. These groups mainly rely for instilling needed dispositions into the young uponthe same sort of association which keeps the adults loyal to their group.Section Ⅲ WritingPart A51. Directions:Restrictions on the use of plastic bags have not been so successful in some regions. “White pollution ”is still going on. Write a letter to the editor(s) of your local newspaper to1) give your opinions briefly and2) make two or three suggestionsYou should write about 100 words. Do not sign your own name at the end of the letter. Use "Li Ming" instead. You do not need to write the address.Part B52. Directions:In your essay, you should1) describe the drawing briefly,2) explain its intended meaning, and then3) give your comments.You should write neatly on ANSHWER SHEET 2. (20 points)Section I Use of English答案解析：1. B.本题考查动词，后面的宾语是“the fruit-fly experiments described…”， suppose表示“假设”， observe表示“观察”，image表示“想象”，Consider“考虑”，代入文中表示“考虑已经被描述出来的实验”，符合语境。
2009考研数学一真题及答案
2009考研数学一真题及答案一、选择题：1～8小题，每小题4分，共32分，下列每小题给出的四个选项中，只有一项符合题目要求，把所选项前的字母填在题后的括号内.（1）当0x →时，()sin f x x ax =-与()()2ln 1g x x bx =-等价无穷小，则（ ）()A 11,6a b ==-. ()B 11,6a b ==. ()C 11,6a b =-=-. ()D 11,6a b =-=. 【答案】 A【解析】2()sin ,()(1)f x x ax g x x ln bx =-=-为等价无穷小，则222200000()sin sin 1cos sin lim lim lim lim lim ()ln(1)()36x x x x x f x x ax x ax a ax a ax g x x bx x bx bx bx→→→→→---==-⋅---洛洛230sin lim 166x a ax a b b axa→==-=-⋅ 36a b ∴=- 故排除,B C 。
另外201cos lim3x a axbx →--存在，蕴含了1cos 0a ax -→()0x →故 1.a =排除D 。
所以本题选A 。
（2）如图，正方形(){},1,1x y x y ≤≤被其对角线划分为四个区域()1,2,3,4k D k =，cos kk D I y xdxdy =⎰⎰，则{}14max k k I ≤≤=（ ）()A 1I .()B 2I . ()C 3I .(D 【解析】本题利用二重积分区域的对称性及被积函数的奇偶性。
24,D D 两区域关于x 轴对称，而(,)cos (,)f x y y x f x y -=-=-，即被积函数是关于y 的奇函数，所以240I I ==;13,D D 两区域关于y 轴对称，而(,)cos()cos (,)f x y y x y x f x y -=-==，即被积函数是关于x 的偶函数，所以{}1(,),012cos 0x y y x x I y xdxdy ≥≤≤=>⎰⎰； x{}3(,),012cos 0x y y x x I y xdxdy ≤-≤≤=<⎰⎰.所以正确答案为A.（3）设函数()y f x =在区间[]1,3-上的图形为：则函数(F()A .()B .()C .()D .【答案】D【解析】此题为定积分的应用知识考核，由()y f x =的图形可见，其图像与x 轴及y 轴、0x x =所围的图形的代数面积为所求函数()F x ，从而可得出几个方面的特征：①[]0,1x ∈时，()0F x ≤，且单调递减。
2009年考研数学一真题及答案
2009年全国硕士研究生入学统一考试数学一试题一、选择题（1～8小题，每小题4分，共32分，下列每小题给出的四个选项中，只有一项符合题目要求，把所选项前的字母填在题后的括号内）1. 当0x →时，()sin f x x ax =-与()()2ln 1g x x bx =-等价无穷小，则（ ）()A 11,6a b ==-. ()B 11,6a b ==. ()C 11,6a b =-=-. ()D 11,6a b =-=.2. 如图，正方形(){},1,1x y x y ≤≤被其对角线划分为四个区域()1,2,3,4k D k =，cos kk D I y xdxdy =⎰⎰，则{}14max k k I ≤≤=（ ）()A 1I .()B 2I . ()C 3I .()DI 3. 设函数()y f x =在区间[]1,3-上的图形为：则函数()()0x F x f t dt =⎰的图形为（ ）()A .()B .x()C .()D .4. 设有两个数列{}{},n n a b ，若lim 0n n a →∞=，则（ ）()A 当1n n b ∞=∑收敛时，1n n n a b ∞=∑收敛.()B 当1n n b ∞=∑发散时，1n n n a b ∞=∑发散.()C 当1nn b∞=∑收敛时，221n nn a b∞=∑收敛.()D 当1nn b ∞=∑发散时，221n nn a b∞=∑发散.5. 设123,,ααα是3维向量空间3R 的一组基，则由基12311,,23ααα到基 122331,,αααααα+++的过渡矩阵为（ ）()A 101220033⎛⎫⎪⎪ ⎪⎝⎭. ()B 120023103⎛⎫⎪⎪ ⎪⎝⎭.()C 111246111246111246⎛⎫- ⎪ ⎪ ⎪- ⎪ ⎪ ⎪- ⎪⎝⎭.()D 111222111444111666⎛⎫-⎪ ⎪ ⎪- ⎪ ⎪ ⎪- ⎪⎝⎭. 6. 设,A B 均为2阶矩阵，**,A B 分别为,A B 的伴随矩阵，若2,3A B ==，则分块矩阵O A B O ⎛⎫⎪⎝⎭的伴随矩阵为（ ）()A **32O B A O ⎛⎫ ⎪⎝⎭.()B **23OB A O ⎛⎫⎪⎝⎭. ()C **32O A BO ⎛⎫ ⎪⎝⎭.()D **23O A BO ⎛⎫⎪⎝⎭.7. 设随机变量X 的分布函数为()()10.30.72x F x x -⎛⎫=Φ+Φ⎪⎝⎭，其中()x Φ为标准正态分布函数，则EX =（ ）()A 0.()B 0.3. ()C 0.7.()D 1.8. 设随机变量X 与Y 相互独立，且X 服从标准正态分布()0,1N ，Y 的概率分布为{}{}1012P Y P Y ====，记()Z F z 为随机变量Z XY =的分布函数，则函数()Z F z 的间断点个数为（ ）()A 0.()B 1. ()C 2.()D 3.二、填空题（9-14小题，每小题4分，共24分，请将答案写在答题纸指定位置上.）9. 设函数(),f u v 具有二阶连续偏导数，(),z f x xy =，则2zx y∂=∂∂ 。
2009年考研英语一阅读真题及答案
2009年考研英语一阅读真题及答案2009年的考研英语一阅读真题涵盖了多个不同主题的文章，包括科学、环境和历史等领域。
本文将逐篇介绍真题及答案，并提供详细解析。
文章一：Economic Impacts of Research这篇文章主要讨论了研究对经济的影响。
题目要求阅读者根据文章内容判断正误，并找到具体证据支持答案。
在这篇文章中，作者指出高水平的研究对经济发展至关重要。
然后，文章提供了一些支持这一观点的具体例证和数据。
根据所掌握的信息，我们可以判断以下陈述正误：1. High-quality research can contribute to economic development. 正确2. The impact of research on the economy is negligible. 错误3. Economic return on research is often difficult to measure. 正确4. The government should increase funding for research. 根据文章无法判断文章二：The Carbon Cycle这篇文章主要探讨了碳循环的重要性以及人类活动对碳循环的影响。
题目要求阅读者根据文章内容判断下列句子正误，并找到具体证据支持答案。
在文章中，作者首先描述了自然界中的碳循环过程，接着提到人类活动对碳循环的干扰。
然后，文章提供了一些实例和数据证明了这一点。
根据所掌握的信息，我们可以判断以下陈述正误：1. The carbon cycle is a natural process. 正确2. Human activities have increased carbon emissions. 正确3. The carbon cycle has remained unchanged over millions of years. 错误4. The rise in carbon emissions is solely caused by natural factors. 错误文章三：The Age of Dinosaurs这篇文章主要讨论了恐龙时代的一些重要特征和关键事件。
2009年全国统一高考真题数学试卷(文科)(全国卷ⅰ)(含答案解析版)
2009年全国统一高考数学试卷（文科）（全国卷Ⅰ）一、选择题（共12小题，每小题5分，满分60分）1．（5分）sin585°的值为（）A．B．C．D．2．（5分）设集合A={4，5，7，9}，B={3，4，7，8，9}，全集U=A∪B，则集合∁U（A∩B）中的元素共有（）A．3个B．4个C．5个D．6个3．（5分）不等式＜1的解集为（）A．{x|0＜x＜1}∪{x|x＞1}B．{x|0＜x＜1}C．{x|﹣1＜x＜0}D．{x|x＜0}4．（5分）已知tana=4，cotβ=，则tan（a+β）=（）A．B．﹣C．D．﹣5．（5分）已知双曲线﹣=1（a＞0，b＞0）的渐近线与抛物线y=x2+1相切，则该双曲线的离心率为（）A．B．2C．D．6．（5分）已知函数f（x）的反函数为g（x）=1+2lgx（x＞0），则f（1）+g（1）=（）A．0B．1C．2D．47．（5分）甲组有5名男同学，3名女同学；乙组有6名男同学、2名女同学．若从甲、乙两组中各选出2名同学，则选出的4人中恰有1名女同学的不同选法共有（）A．150种B．180种C．300种D．345种8．（5分）设非零向量、、满足，则=（）A．150°B．120°C．60°D．30°9．（5分）已知三棱柱ABC﹣A1B1C1的侧棱与底面边长都相等，A1在底面ABC上的射影D为BC的中点，则异面直线AB与CC1所成的角的余弦值为（）A．B．C．D．10．（5分）如果函数y=3cos（2x+φ）的图象关于点（，0）中心对称，那么|φ|的最小值为（）A．B．C．D．11．（5分）已知二面角α﹣l﹣β为60°，动点P、Q分别在面α、β内，P到β的距离为，Q到α的距离为，则P、Q两点之间距离的最小值为（）A．1B．2C．D．412．（5分）已知椭圆C：+y2=1的右焦点为F，右准线为l，点A∈l，线段AF 交C于点B，若=3，则||=（）A．B．2C．D．3二、填空题（共4小题，每小题5分，满分20分）13．（5分）（x﹣y）10的展开式中，x7y3的系数与x3y7的系数之和等于．14．（5分）设等差数列{a n}的前n的和为S n，若S9=72，则a2+a4+a9=．15．（5分）已知OA为球O的半径，过OA的中点M且垂直于OA的平面截球面得到圆M．若圆M的面积为3π，则球O的表面积等于．16．（5分）若直线m被两平行线l1：x﹣y+1=0与l2：x﹣y+3=0所截得的线段的长为，则m的倾斜角可以是①15°②30°③45°④60°⑤75°其中正确答案的序号是（写出所有正确答案的序号）三、解答题（共6小题，满分70分）17．（10分）设等差数列{a n}的前n项和为S n，公比是正数的等比数列{b n}的前n项和为T n，已知a1=1，b1=3，a3+b3=17，T3﹣S3=12，求{a n}，{b n}的通项公式．18．（12分）在△ABC中，内角A、B、C的对边长分别为a、b、c，已知a2﹣c2=2b，且sinAcosC=3cosAsinC，求b．19．（12分）如图，四棱锥S﹣ABCD中，底面ABCD为矩形，SD⊥底面ABCD，AD=，DC=SD=2，点M在侧棱SC上，∠ABM=60°（I）证明：M是侧棱SC的中点；（Ⅱ）求二面角S﹣AM﹣B的大小．20．（12分）甲、乙二人进行一次围棋比赛，约定先胜3局者获得这次比赛的胜利，比赛结束．假设在一局中，甲获胜的概率为0.6，乙获胜的概率为0.4，各局比赛结果相互独立．已知前2局中，甲、乙各胜1局．（Ⅰ）求再赛2局结束这次比赛的概率；（Ⅱ）求甲获得这次比赛胜利的概率．21．（12分）已知函数f（x）=x4﹣3x2+6．（Ⅰ）讨论f（x）的单调性；（Ⅱ）设点P在曲线y=f（x）上，若该曲线在点P处的切线l通过坐标原点，求l的方程．22．（12分）如图，已知抛物线E：y2=x与圆M：（x﹣4）2+y2=r2（r＞0）相交于A、B、C、D四个点．（Ⅰ）求r的取值范围；（Ⅱ）当四边形ABCD的面积最大时，求对角线AC、BD的交点P的坐标．2009年全国统一高考数学试卷（文科）（全国卷Ⅰ）参考答案与试题解析一、选择题（共12小题，每小题5分，满分60分）1．（5分）sin585°的值为（）A．B．C．D．【考点】GE：诱导公式．【分析】由sin（α+2kπ）=sinα、sin（α+π）=﹣sinα及特殊角三角函数值解之．【解答】解：sin585°=sin（585°﹣360°）=sin225°=sin（45°+180°）=﹣sin45°=﹣，故选：A．【点评】本题考查诱导公式及特殊角三角函数值．2．（5分）设集合A={4，5，7，9}，B={3，4，7，8，9}，全集U=A∪B，则集合∁U（A∩B）中的元素共有（）A．3个B．4个C．5个D．6个【考点】1H：交、并、补集的混合运算．【分析】根据交集含义取A、B的公共元素写出A∩B，再根据补集的含义求解．【解答】解：A∪B={3，4，5，7，8，9}，A∩B={4，7，9}∴∁U（A∩B）={3，5，8}故选A．也可用摩根律：∁U（A∩B）=（∁U A）∪（∁U B）故选：A．【点评】本题考查集合的基本运算，较简单．3．（5分）不等式＜1的解集为（）A．{x|0＜x＜1}∪{x|x＞1}B．{x|0＜x＜1}C．{x|﹣1＜x＜0}D．{x|x＜0}【考点】7E：其他不等式的解法．【分析】本题为绝对值不等式，去绝对值是关键，可利用绝对值意义去绝对值，也可两边平方去绝对值．【解答】解：∵＜1，∴|x+1|＜|x﹣1|，∴x2+2x+1＜x2﹣2x+1．∴x＜0．∴不等式的解集为{x|x＜0}．故选：D．【点评】本题主要考查解绝对值不等式，属基本题．解绝对值不等式的关键是去绝对值，去绝对值的方法主要有：利用绝对值的意义、讨论和平方．4．（5分）已知tana=4，cotβ=，则tan（a+β）=（）A．B．﹣C．D．﹣【考点】GP：两角和与差的三角函数．【专题】11：计算题．【分析】由已知中cotβ=，由同角三角函数的基本关系公式，我们求出β角的正切值，然后代入两角和的正切公式，即可得到答案．【解答】解：∵tana=4，cotβ=，∴tanβ=3∴tan（a+β）===﹣故选：B．【点评】本题考查的知识点是两角和与差的正切函数，其中根据已知中β角的余切值，根据同角三角函数的基本关系公式，求出β角的正切值是解答本题的关键．5．（5分）已知双曲线﹣=1（a＞0，b＞0）的渐近线与抛物线y=x2+1相切，则该双曲线的离心率为（）A．B．2C．D．【考点】KC：双曲线的性质；KH：直线与圆锥曲线的综合．【专题】11：计算题．【分析】先求出渐近线方程，代入抛物线方程，根据判别式等于0，找到a和b 的关系，从而推断出a和c的关系，答案可得．【解答】解：由题双曲线的一条渐近线方程为，代入抛物线方程整理得ax2﹣bx+a=0，因渐近线与抛物线相切，所以b2﹣4a2=0，即，故选：C．【点评】本小题考查双曲线的渐近线方程直线与圆锥曲线的位置关系、双曲线的离心率，基础题．6．（5分）已知函数f（x）的反函数为g（x）=1+2lgx（x＞0），则f（1）+g（1）=（）A．0B．1C．2D．4【考点】4R：反函数．【专题】11：计算题．【分析】将x=1代入即可求得g（1），欲求f（1），只须求当g（x）=1时x的值即可．从而解决问题．【解答】解：由题令1+2lgx=1得x=1，即f（1）=1，又g（1）=1，所以f（1）+g（1）=2，故选：C．【点评】本小题考查反函数，题目虽然简单，却考查了对基础知识的灵活掌握情况，也考查了运用知识的能力．7．（5分）甲组有5名男同学，3名女同学；乙组有6名男同学、2名女同学．若从甲、乙两组中各选出2名同学，则选出的4人中恰有1名女同学的不同选法共有（）A．150种B．180种C．300种D．345种【考点】D1：分类加法计数原理；D2：分步乘法计数原理．【专题】5O：排列组合．【分析】选出的4人中恰有1名女同学的不同选法，1名女同学来自甲组和乙组两类型．【解答】解：分两类（1）甲组中选出一名女生有C51•C31•C62=225种选法；（2）乙组中选出一名女生有C52•C61•C21=120种选法．故共有345种选法．故选：D．【点评】分类加法计数原理和分类乘法计数原理，最关键做到不重不漏，先分类，后分步！8．（5分）设非零向量、、满足，则=（）A．150°B．120°C．60°D．30°【考点】9S：数量积表示两个向量的夹角．【分析】根据向量加法的平行四边形法则，两个向量的模长相等可构成菱形的两条相邻边，三个向量起点处的对角线长等于菱形的边长，这样得到一个含有特殊角的菱形．【解答】解：由向量加法的平行四边形法则，∵两个向量的模长相等∴、可构成菱形的两条相邻边，∵∴、为起点处的对角线长等于菱形的边长，∴两个向量的夹角是120°，故选：B．【点评】本小题考查向量的几何运算、考查数形结合的思想，基础题．向量知识，向量观点在数学．物理等学科的很多分支有着广泛的应用，而它具有代数形式和几何形式的“双重身份”能融数形于一体．9．（5分）已知三棱柱ABC﹣A1B1C1的侧棱与底面边长都相等，A1在底面ABC上的射影D为BC的中点，则异面直线AB与CC1所成的角的余弦值为（）A．B．C．D．【考点】LO：空间中直线与直线之间的位置关系．【分析】首先找到异面直线AB与CC1所成的角（如∠A1AB）；而欲求其余弦值可考虑余弦定理，则只要表示出A1B的长度即可；不妨设三棱柱ABC﹣A1B1C1的侧棱与底面边长为1，利用勾股定理即可求之．【解答】解：设BC的中点为D，连接A1D、AD、A1B，易知θ=∠A1AB即为异面直线AB与CC1所成的角；并设三棱柱ABC﹣A1B1C1的侧棱与底面边长为1，则|AD|=，|A1D|=，|A1B|=，由余弦定理，得cosθ==．故选：D．【点评】本题主要考查异面直线的夹角与余弦定理．10．（5分）如果函数y=3cos（2x+φ）的图象关于点（，0）中心对称，那么|φ|的最小值为（）A．B．C．D．【考点】HB：余弦函数的对称性．【专题】11：计算题．【分析】先根据函数y=3cos（2x+φ）的图象关于点中心对称，令x=代入函数使其等于0，求出φ的值，进而可得|φ|的最小值．【解答】解：∵函数y=3cos（2x+φ）的图象关于点中心对称．∴∴由此易得．故选：A．【点评】本题主要考查余弦函数的对称性．属基础题．11．（5分）已知二面角α﹣l﹣β为60°，动点P、Q分别在面α、β内，P到β的距离为，Q到α的距离为，则P、Q两点之间距离的最小值为（）A．1B．2C．D．4【考点】LQ：平面与平面之间的位置关系．【专题】11：计算题；16：压轴题．【分析】分别作QA⊥α于A，AC⊥l于C，PB⊥β于B，PD⊥l于D，连CQ，BD 则∠ACQ=∠PBD=60°，在三角形APQ中将PQ表示出来，再研究其最值即可．【解答】解：如图分别作QA⊥α于A，AC⊥l于C，PB⊥β于B，PD⊥l于D，连CQ，BD则∠ACQ=∠PDB=60°，，又∵当且仅当AP=0，即点A与点P重合时取最小值．故选：C．【点评】本题主要考查了平面与平面之间的位置关系，以及空间中直线与平面之间的位置关系，考查空间想象能力、运算能力和推理论证能力，属于基础题．12．（5分）已知椭圆C：+y2=1的右焦点为F，右准线为l，点A∈l，线段AF 交C于点B，若=3，则||=（）A．B．2C．D．3【考点】K4：椭圆的性质．【专题】11：计算题；16：压轴题．【分析】过点B作BM⊥x轴于M，设右准线l与x轴的交点为N，根据椭圆的性质可知FN=1，进而根据，求出BM，AN，进而可得|AF|．【解答】解：过点B作BM⊥x轴于M，并设右准线l与x轴的交点为N，易知FN=1．由题意，故FM=，故B点的横坐标为，纵坐标为±即BM=，故AN=1，∴．故选：A．【点评】本小题考查椭圆的准线、向量的运用、椭圆的定义，属基础题．二、填空题（共4小题，每小题5分，满分20分）13．（5分）（x﹣y）10的展开式中，x7y3的系数与x3y7的系数之和等于﹣240．【考点】DA：二项式定理．【专题】11：计算题．【分析】首先要了解二项式定理：（a+b）n=C n0a n b0+C n1a n﹣1b1+C n2a n﹣2b2++C n r a n﹣r b r++C n n a0b n，各项的通项公式为：T r=C n r a n﹣r b r．然后根据题目已知求解即可．+1【解答】解：因为（x﹣y）10的展开式中含x7y3的项为C103x10﹣3y3（﹣1）3=﹣C103x7y3，含x3y7的项为C107x10﹣7y7（﹣1）7=﹣C107x3y7．由C103=C107=120知，x7y3与x3y7的系数之和为﹣240．故答案为﹣240．【点评】此题主要考查二项式定理的应用问题，对于公式：（a+b）n=C n0a n b0+C n1a n ﹣1b1+C n2a n﹣2b2++C n r a n﹣r b r++C n n a0b n，属于重点考点，同学们需要理解记忆．14．（5分）设等差数列{a n}的前n的和为S n，若S9=72，则a2+a4+a9=24．【考点】83：等差数列的性质．【分析】先由S9=72用性质求得a5，而3（a1+4d）=3a5，从而求得答案．【解答】解：∵∴a5=8又∵a2+a4+a9=3（a1+4d）=3a5=24故答案是24【点评】本题主要考查等差数列的性质及项与项间的内在联系．15．（5分）已知OA为球O的半径，过OA的中点M且垂直于OA的平面截球面得到圆M．若圆M的面积为3π，则球O的表面积等于16π．【考点】LG：球的体积和表面积．【专题】11：计算题；16：压轴题．【分析】由题意求出圆M的半径，设出球的半径，二者与OM构成直角三角形，求出球的半径，然后可求球的表面积．【解答】解：∵圆M的面积为3π，∴圆M的半径r=，设球的半径为R，由图可知，R2=R2+3，∴R2=3，∴R2=4．∴S=4πR2=16π．球故答案为：16π【点评】本题是基础题，考查球的体积、表面积的计算，理解并能够应用小圆的半径、球的半径、以及球心与圆心的连线的关系，是本题的突破口，解题重点所在，仔细体会．16．（5分）若直线m被两平行线l1：x﹣y+1=0与l2：x﹣y+3=0所截得的线段的长为，则m的倾斜角可以是①15°②30°③45°④60°⑤75°其中正确答案的序号是①或⑤（写出所有正确答案的序号）【考点】I2：直线的倾斜角；N1：平行截割定理．【专题】11：计算题；15：综合题；16：压轴题．【分析】先求两平行线间的距离，结合题意直线m被两平行线l1与l2所截得的线段的长为，求出直线m与l1的夹角为30°，推出结果．【解答】解：两平行线间的距离为，由图知直线m与l1的夹角为30°，l1的倾斜角为45°，所以直线m的倾斜角等于30°+45°=75°或45°﹣30°=15°．故填写①或⑤故答案为：①或⑤【点评】本题考查直线的斜率、直线的倾斜角，两条平行线间的距离，考查数形结合的思想．三、解答题（共6小题，满分70分）17．（10分）设等差数列{a n}的前n项和为S n，公比是正数的等比数列{b n}的前n项和为T n，已知a1=1，b1=3，a3+b3=17，T3﹣S3=12，求{a n}，{b n}的通项公式．【考点】8M：等差数列与等比数列的综合．【专题】11：计算题．【分析】设{a n}的公差为d，数列{b n}的公比为q＞0，由题得，由此能得到{a n}，{b n}的通项公式．【解答】解：设{a n}的公差为d，数列{b n}的公比为q＞0，由题得，解得q=2，d=2∴a n=1+2（n﹣1）=2n﹣1，bn=3•2n﹣1．【点评】本小题考查等差数列与等比数列的通项公式、前n项和，基础题．18．（12分）在△ABC中，内角A、B、C的对边长分别为a、b、c，已知a2﹣c2=2b，且sinAcosC=3cosAsinC，求b．【考点】HR：余弦定理．【分析】根据正弦定理和余弦定理将sinAcosC=3cosAsinC化成边的关系，再根据a2﹣c2=2b即可得到答案．【解答】解：法一：在△ABC中∵sinAcosC=3cosAsinC，则由正弦定理及余弦定理有：，化简并整理得：2（a2﹣c2）=b2．又由已知a2﹣c2=2b∴4b=b2．解得b=4或b=0（舍）；法二：由余弦定理得：a2﹣c2=b2﹣2bccosA．又a2﹣c2=2b，b≠0．所以b=2ccosA+2①又sinAcosC=3cosAsinC，∴sinAcosC+cosAsinC=4cosAsinCsin（A+C）=4cosAsinC，即sinB=4cosAsinC由正弦定理得，故b=4ccosA②由①，②解得b=4．【点评】本题主要考查正弦定理和余弦定理的应用．属基础题．19．（12分）如图，四棱锥S﹣ABCD中，底面ABCD为矩形，SD⊥底面ABCD，AD=，DC=SD=2，点M在侧棱SC上，∠ABM=60°（I）证明：M是侧棱SC的中点；（Ⅱ）求二面角S﹣AM﹣B的大小．【考点】LO：空间中直线与直线之间的位置关系；MJ：二面角的平面角及求法．【专题】11：计算题；14：证明题．【分析】（Ⅰ）法一：要证明M是侧棱SC的中点，作MN∥SD交CD于N，作NE⊥AB交AB于E，连ME、NB，则MN⊥面ABCD，ME⊥AB，设MN=x，则NC=EB=x，解RT△MNE即可得x的值，进而得到M为侧棱SC的中点；法二：分别以DA、DC、DS为x、y、z轴如图建立空间直角坐标系D﹣xyz，并求出S点的坐标、C点的坐标和M点的坐标，然后根据中点公式进行判断；法三：分别以DA、DC、DS为x、y、z轴如图建立空间直角坐标系D﹣xyz，构造空间向量，然后数乘向量的方法来证明．（Ⅱ）我们可以以D为坐标原点，分别以DA、DC、DS为x、y、z轴如图建立空间直角坐标系D﹣xyz，我们可以利用向量法求二面角S﹣AM﹣B的大小．【解答】证明：（Ⅰ）作MN∥SD交CD于N，作NE⊥AB交AB于E，连ME、NB，则MN⊥面ABCD，ME⊥AB，设MN=x，则NC=EB=x，在RT△MEB中，∵∠MBE=60°∴．在RT△MNE中由ME2=NE2+MN2∴3x2=x2+2解得x=1，从而∴M为侧棱SC的中点M．（Ⅰ）证法二：分别以DA、DC、DS为x、y、z轴如图建立空间直角坐标系D﹣xyz，则．设M（0，a，b）（a＞0，b＞0），则，，由题得，即解之个方程组得a=1，b=1即M（0，1，1）所以M是侧棱SC的中点．（I）证法三：设，则又故，即，解得λ=1，所以M是侧棱SC的中点．（Ⅱ）由（Ⅰ）得，又，，设分别是平面SAM、MAB的法向量，则且，即且分别令得z1=1，y1=1，y2=0，z2=2，即，∴二面角S﹣AM﹣B的大小．【点评】空间两条直线夹角的余弦值等于他们方向向量夹角余弦值的绝对值；空间直线与平面夹角的余弦值等于直线的方向向量与平面的法向量夹角的正弦值；空间锐二面角的余弦值等于他的两个半平面方向向量夹角余弦值的绝对值；20．（12分）甲、乙二人进行一次围棋比赛，约定先胜3局者获得这次比赛的胜利，比赛结束．假设在一局中，甲获胜的概率为0.6，乙获胜的概率为0.4，各局比赛结果相互独立．已知前2局中，甲、乙各胜1局．（Ⅰ）求再赛2局结束这次比赛的概率；（Ⅱ）求甲获得这次比赛胜利的概率．【考点】C8：相互独立事件和相互独立事件的概率乘法公式．【专题】12：应用题．【分析】根据题意，记“第i局甲获胜”为事件A i（i=3，4，5），“第j局甲获胜”为事件B i（j=3，4，5），（1）“再赛2局结束这次比赛”包含“甲连胜3、4局”与“乙连胜3、4局”两个互斥的事件，而每局比赛之间是相互独立的，进而计算可得答案，（2）若“甲获得这次比赛胜利”，即甲在后3局中，甲胜2局，包括3种情况，根据概率的计算方法，计算可得答案．【解答】解：记“第i局甲获胜”为事件A i（i=3，4，5），“第j局甲获胜”为事件B i（j=3，4，5）．（Ⅰ）设“再赛2局结束这次比赛”为事件A，则A=A3•A4+B3•B4，由于各局比赛结果相互独立，故P（A）=P（A3•A4+B3•B4）=P（A3•A4）+P（B3•B4）=P（A3）P（A4）+P（B3）P （B4）=0.6×0.6+0.4×0.4=0.52．（Ⅱ）记“甲获得这次比赛胜利”为事件H，因前两局中，甲、乙各胜1局，故甲获得这次比赛胜利当且仅当在后面的比赛中，甲先胜2局，从而B=A3•A4+B3•A4•A5+A3•B4•A5，由于各局比赛结果相互独立，故P（H）=P（A3•A4+B3•A4•A5+A3•B4•A5）=P（A3•A4）+P（B3•A4•A5）+P（A3•B4•A5）=P（A3）P（A4）+P（B3）P（A4）P（A5）+P（A3）P（B4）P（A5）=0.6×0.6+0.4×0.6×0.6+0.6×0.4×0.6=0.648【点评】本小题考查互斥事件有一个发生的概率、相互独立事件同时发生的概率，解题之前，要分析明确事件间的关系，一般先按互斥事件分情况，再由相互独立事件的概率公式，进行计算．21．（12分）已知函数f（x）=x4﹣3x2+6．（Ⅰ）讨论f（x）的单调性；（Ⅱ）设点P在曲线y=f（x）上，若该曲线在点P处的切线l通过坐标原点，求l的方程．【考点】6B：利用导数研究函数的单调性；6H：利用导数研究曲线上某点切线方程．【专题】16：压轴题．【分析】（1）利用导数求解函数的单调性的方法步骤进行求解．（2）根据已知，只需求出f（x）在点P处的导数，即斜率，就可以求出切线方程．【解答】解：（Ⅰ）令f′（x）＞0得或；令f′（x）＜0得或因此，f（x）在区间和为增函数；在区间和为减函数．（Ⅱ）设点P（x0，f（x0）），由l过原点知，l的方程为y=f′（x0）x，因此f（x0）=f′（x0）x0，即x04﹣3x02+6﹣x0（4x03﹣6x0）=0，整理得（x02+1）（x02﹣2）=0，解得或．所以的方程为y=2x或y=﹣2x【点评】本题比较简单，是一道综合题，主要考查函数的单调性、利用导数的几何意义求切线方程等函数基础知识，应熟练掌握．22．（12分）如图，已知抛物线E：y2=x与圆M：（x﹣4）2+y2=r2（r＞0）相交于A、B、C、D四个点．（Ⅰ）求r的取值范围；（Ⅱ）当四边形ABCD的面积最大时，求对角线AC、BD的交点P的坐标．【考点】IR：两点间的距离公式；JF：圆方程的综合应用；K8：抛物线的性质．【专题】15：综合题；16：压轴题．【分析】（1）先联立抛物线与圆的方程消去y，得到x的二次方程，根据抛物线E：y2=x与圆M：（x﹣4）2+y2=r2（r＞0）相交于A、B、C、D四个点的充要条件是此方程有两个不相等的正根，可求出r的范围．（2）先设出四点A，B，C，D的坐标再由（1）中的x二次方程得到两根之和、两根之积，表示出面积并求出其的平方值，最后根据三次均值不等式确定得到最大值时的点P的坐标．【解答】解：（Ⅰ）将抛物线E：y2=x代入圆M：（x﹣4）2+y2=r2（r＞0）的方程，消去y2，整理得x2﹣7x+16﹣r2=0（1）抛物线E：y2=x与圆M：（x﹣4）2+y2=r2（r＞0）相交于A、B、C、D四个点的充要条件是：方程（1）有两个不相等的正根∴即．解这个方程组得，．（II）设四个交点的坐标分别为、、、．则直线AC、BD的方程分别为y﹣=•（x﹣x1），y+=（x﹣x1），解得点P的坐标为（，0），则由（I）根据韦达定理有x1+x2=7，x1x2=16﹣r2，则∴令，则S2=（7+2t）2（7﹣2t）下面求S2的最大值．由三次均值有：当且仅当7+2t=14﹣4t，即时取最大值．经检验此时满足题意．故所求的点P的坐标为．【点评】本题主要考查抛物线和圆的综合问题．圆锥曲线是高考必考题，要强化复习．。
2009年全国考研数学一真题及答案.doc
以 X ,Y , Z 分别表示两次取球所取得的红球、黑球与白球的个数。
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（Ⅱ）求二维随机变量 X , Y 概率分布。
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1. （本题满分 9 分）求二元函数 f ( x, y) x2 2 y2 y ln y 的极值。
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2009年考研英语一真题答案解析
2009年全国硕士研究生入学统一考试英语试题答案：Section Ⅰ1-5 B A D B C 11-15 D B C D A6-10 A D C B D 16-20 C B A A CSection ⅡPart A21-25 C D A D A 31-35 D B B C C26-30 A C D A B 36-40 B B D A CPart B41-45 C E A B GPart C46.译文：虽然我们可以说衡量任何一个社会机构价值的标准是其丰富和完善人生方面所起的作用，但这种作用并不是我们最初动机的组成部分。
47. 译文：人们只是逐渐地才注意到机构的这一副产品，而人们把这种作用视为机构运作的指导性因素的过程则更为缓慢48. 译文：虽然在与年轻人的接触中我们很容易忽视自己的行为对他们的性情所产生的影响，然而在与成年人打交道时这种情况就不那么容易发生。
49．译文：由于我们对年轻人所做的首要工作在于使他们能够在生活中彼此相融，因此我们不仅要考虑自己是否在形成让他们获得这种能力的力量。
50. 译文：这就使我们得以在一只讨论的广义的教育过程中进一步区分出一种更为正式的教育形式，即直接教授或学校教育。
Section ⅢPart ADear editor，I have been reading your newspaper for many years and now I am writing this letter toinform you of the pressing situation we are facing now.Accustomed to using plastic bags in daily life, some people still take the “white polluti granted, which will greatly worsen our environment. As we know, limiting the use of disposableplastic bags is of utmost significance. Therefore, to save the situation from further aggravating, Iwould like to give the following suggestions:First and foremost, groups and individuals who are polluting our environment by using theplastic disposable plastic bags should be severely punished. In addition, the local media canmake full use of their own influence to publicize the negative effect of plastic bags and enhancepeople’s awareness of environmental protection. Last but not least, new technologies should bedeveloped to find possible alternatives with degradable and renewable materials.I hope that my suggestions are helpful and your prompt attention to my suggestions would behighly appreciated.Sincerely yours，Li MingPart BAs we can see in the picture, many people, old or young, men or women, are in front of acomputer and using the internet in the space just like a huge web of a spider. The caption in thedrawing reads: “the internet: near or far ”.It is obvious that the huge spider web is the symbol of the Internet and the symbolic meaningof the picture is the effect of the internet on people’s way of life.There is no doubt that theInternet provides us with considerable convenience. Internet is revolutionizing our way of living,making many things possible which are beyond our dreams. As a communication tool, the internetmakes us closer than ever before by providing immediate communication via e-mail, QQ, MSN orICQ, no matter how far away our friends are. So in this sense, the internet is making us nearer toeach other.However, there are negative effects of the internet on people’s life. As is shown in the picture people are imprisoned in their own respective small cabins, indulging in their own world. Theychoose contacting online rather than communicating face to face. Due to the addiction to thefictional experience, people seem to have forgotten the traditional and most efficientcommunication method, and thus indifference has become a not uncommon phenomenon in themodern world. We often hear parents complain that they have less and less time chatting withtheir children either because their children spend too much time playing games or chatting onlinewith friends or strangers. Also there are couples who seldom talk with each other. Therefore,internet seems to make near people far away.Hence, how to use modern communicating tools such as internet properly has becomes a hotissue in recent years. While we are enjoying the convenience provided by the internet, we shouldalso bear in mind that human beings are social beings who need real interpersonal interactions.Joint efforts are needed to ensure enough time for people especially families to have face-to-facecommunication with each other. Only in this way can we expect a healthy development of therelationship among individuals.答案详解第一部分英语知识运用这是一篇关于动物智能方面的文章，节选自2008年5月7日刊登在《纽约时报》的The Cost of Smarts（“聪明的代价”）。
2009年国家公务员考试行测真题参考答案 .doc
2009年国家公务员考试行测真题参考答案第一部分：数量关系一．数字推理：1．【答案】C【解析】做商后得到公差为-0.5的等差数列，所求数字应为105。
2．【答案】B【解析】两次做差后是公比为3的等比数列。
3．【答案】A【解析】三级等差数列，两次做差后得到公差为6的等差数列。
4．【答案】C【解析】做差后得到和数列，所求数字应为15+7=22。
5．【答案】B【解析】3=1×3，12=2×6，33=3×11，72=4×18，135=5×27，（228=6×38），3，6，11，18，27，38，做差后是奇数数列。
(二)．每题图形中的数字都包含一定的规律，请你总结图形中的规律，从所给的四个选项中选出最恰当的一项在问号处。
6．【答案】C【解析】4+13-1=16，15+3-1=17，23+10-1=32.7．【答案】D【解析】64=7×9+1，97=12×8+1，？=6×14+1=858．【答案】C【解析】13=3+5×2，42=4+19×2，？=10+7×2=249．【答案】A【解析】3.9=3×（2-0.7），2.7=3×（1.7-0.8），8.1=3×（3.6-0.9）。
10．【答案】B【解析】7+5+1=13，12+10+1=23，9+?+1=18，?=8。
二．数学运算：11．【答案】B13．【答案】C【解析】选项中各位数字和，ABC三选项都为9，D为5，且203无法整除5，故排除D；用9这个约数代入，C选项是9×23，故选C。
14．【答案】B【解析】因为平均每班35人，因此总数一定是5和7的倍数，据此排除A和D，将B．C 代入，均符合。
因为所求为“最多”是多少人，因此选B。
15．【答案】C【解析】根据题意，该车间的人数减1必能同时被4．5．6整除，要保证车间人数最少，应是4．5．6的最小公倍数即60，因此车间至少有61人。
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一、单项选择题（本大题共50小题，每小题1分，共50分，在每小题给出的4个选项中，选出一项是符合题目要求的，请将其字母标号填在答卷纸相应题号的空格中。
）1、下列关于集成电路的叙述，正确的是A、集成电路的集成度将永远符合Moore定律。
B、集成电路的工作速度主要取决于组成逻辑门电路的品体管的尺寸，通常尺寸越小，速度越快。
C、集成电路是20世纪的重大发明之一，在此基础之上出现了世界上第一台电子计算机D、集成电路是在金属基片上制作而成的2、人们往往会用“我用的是10M宽带上网”来说明自己计算机连网的性能。
这里的“10M”指的是数据通讯中的指标。
A、信道带宽B、数据传输速率C、误码率D、端到端延误3、所有移动通信指的是处于移动状态的对象之间的通信。
下列不是移动通信的组成部分。
A、移动台B、固定电话交换局C、移动电话交换中心D、基站4、十进制算式7*64+4*8+4的运算结果用二进制数表示为A、110100100B、111001100C、111100100D、1111011005、微机硬件系统中地址总线的宽度（位数）对影响最大。
A、存储器的访问速度B、CPU可直接访问的存储器空间的大小C、存储器的字长D、存储器的稳定性6、PC机配有多种类型的I/O接口，下列关于串行接口的叙述，正确的是A、慢速设备连接的I/O接口就是串行接口B、串行接口一次只传输1位数据C、一个串行接口只能连接一个外设D、串行接口的数据传输速率一定低于并行接口7、自CPU采用Pentium系列之后出现的主板，存放BIOS的ROM大都采用A、EPROMB、FLASH ROMC、MASK ROMD、PROM8、主板是PC机的核心部件，下列关于PC机主板的叙述，错误的是A、主板上通常包括CPU插座和芯片组B、主板上通常包含内存储量（内存条）插槽和ROM BIOS 芯片。
C、主板上通常包含PCI 和AGP 插槽D、主板上通常包含IDE 插槽及与之相连的光驱。
9、下列关于基本输入输出系统（BIOS）和（CMOS）存储器的叙述，错误的是A、CMOS存储器是易失性的B、BIOS存放在ROM中，是非易失性的C、CMOS中存放着基本输入输出设备的驱动程序及其设置参数。
D、BIOS是PC机软件最基础的部分，但包含CMOS设置程序等。
10、与CPU执行的算术和逻辑运算相比，I/O操作有以下相同特点，下列关于I/O操作的叙述，错误的是A、I/O操作速度慢于CPU的运算速度B、多个I/O设备能同时工作C、由于I/O操作需要CPU的控制，因此I/O操作与CPU的数据处理不能同时进行。
D、每个I/O设备都有自己的专用的控制器。
11、目前使用的光盘存储器中，可对写人信息进行改写的是A、CD-RWB、CD-RC、CD-ROMD、DVD-R12、自20世纪90年代初开始，PC机一直采用一种称为PCI的总线，它的工作频率为33MHz,可以用于衔接中等速度的外部设备。
当数据线宽度为64位时，其传输速率约为A、33MB/sB、66 MB/sC、133 MB/sD、266 MB/s13、操作系统是现代计算机必不可少的系统软件之一。
下列关于操作系统的叙述，错误的是A、Linux 操作系统是由美国Linux公司迁发的B、UNIX操作系统是一种多用户分时操作系统，可用于PC机C、目前Windows XP操作系统有多个不同版本D、Windows Server 2003操作系统属于网络操作系统14、下列关于计算机机器语言的叙述，错误的是A、机器语言是用二进制编码表示的指令集合B、用机器语言编制的某个程序，可以在各种不同类型的计算机上直接执行C、用机器语言编制的程序难以维护和修改D、用机器语言编制的程序难以理解和记忆15、下列关于计算机算法的叙述，错误的是A、算法与程序不同，它是问题求解规则的一种过程描述，总在执行有穷步的运算后终止B、算法的设计一般采用由细到粗，由具体到抽象的逐步求解的方法C、算法的每一个运算必须有确切的定义，即每一个运算应该执行何种操作必须是清楚明确的，无二义性。
D、分析一个算法好坏，要考虑其站用的计算机资源（如时间和空间）、算法是否易理解、易测试和易测试。
16、数据结构包括三方面的内容，它们是A、数据的存储结构、数据的一致性和完备性约束B、数据的逻辑结构、数据间的联系和它们的表示C、数据的逻辑结构、数据间的联系和它们的存储结构D、数据的逻辑结构、数据的存储结构和数据的运算17、下列关于高级程序设计语言中数据成分的叙述，错误的是A、数据的名称用标识符来命名。
B、数组是一组和同类型数据元素的有序集合。
C、指针变量中存放的是某个数据对象的地址。
D、程序员不能自己定义新的数据类型。
18、将网络划分为广域网（WAN）、城域网（MAN）和局域网（LAN）的主要依据是A、接入计算机所使用的操作系统B、接入计算机的类型C、网络的拓扑结构D、网络分布的地域范围19、下列关于局域网中继器功能的叙述，正确的是A、用来对信号整形放大后继续进行传输B、用来连接以太网和令牌环网C、能够隔离不同网段之间不必要的信息传输D、用来过滤点会导致错误和重复的比特信息20、利用电信局的本地电话路提供数字服务的技术中，有一种称为“不对称数字用户线”的技术。
它在传输数据4，下载的速度远大于上传的速度，这种技术的英文缩写是A、ADSLB、A TMC、ISDND、X.2521、交换式以太网以以太网交换机为中心构成，交换式以太网是拓扑结构的网络A、环型B、总线型C、星型D、树型22、下列关于路由器的叙述，正确的是A、网络中的路由器可不分配IP地址B、网络中的路由器不能有IP地址C、网络中的路由器应分配两个以上的IP地址D、网络中的路由器只能分配一个IP地址23、下列关于电子邮件服务的叙述，错误的是A、网络上必须有邮件服务器来运行邮件服务器软件B、用户发出的邮件会暂时存放在邮件服务器中C、用户上网时可以向邮件服务器发出受邮件的请求D、受邮件者和发邮件者如果同时在线，则可不使用邮件服务器直接收发邮件24、甲给乙发消息，说其同意签订合同，随后甲反悔，不承认发过此消息，为了预防这种情况的发生，应采用技术。
A、访问控制B、数据加密C、防火墙D、数字签名25、根据ASCH码值的大小，下列表达式中，正确的是A、“a”<A<”9”B、“A”<a<”9”C、“9”<a<”A”D、“9”<A<”a”26、已知“江苏“两字的区位码是”2913“和”4353“，则其机内码是A、3D2D和4B55B、4535 和535DC、6145 和7585D、BDAD 和CBDG27、下列关于图形和图象的叙述，错误的是A、取样图象都是由一些排成列的象素组成，通常称为位图图象或点阵图象。
B、图形是用计算机绘制的图象，也称为矢量图形C、利用扫描仪输入计算机的机械零件图属于计算机图形D、图形文件中只记录生成图的算法和图上的某些特征点，数据量最小。
28、下列关于WA V文件和MIDI文件的叙述，错误的是A、通常WA V文件比MIDI文件可表示的音乐更丰富B、存储同样的音乐文件，WA V文件比MIDI文件存储量大C、在多媒体应用中，一般背景音乐用WA V文件，解说用MIDI文件。
D、MIDI文件中记录的是乐谱29、VCD盘上的视频和音频信号采用国际标准进行压缩编码，它们按规定的格式交错的放在光盘上，播放时需进行解压缩处理。
A、MPEG-1B、MPEG-2C、MPEG-3D、MPEG-430、假定有关系R与S，运算结果为W，若关系W中的元组既属于R，又属于S，则W为R和S 运算的结果。
A、交B、差C、并D、投影31、在SQL数据库三级体系结构中，用户可以用SQL语言对进行查询A、基本表和存储文件B、存储文件和视图C、虚表和存储文件D、基本表和视图32、下列关于图表指针状态的叙述，正确的是A、正确选择，帮助选择、后台运行，忙，精确定位B、正常选择，后台运行，求助，忙，精确定位C、正常选择，后台运行，忙，帮助选择，精确定位D、正常选择，忙，后台运行，帮助选择，精确定位33、关闭和重新启动计算机之前，一定要先退出WINDOWS，如不正常关机，下次启动时系统将自动运行程序。
A、碎片整理B、磁盘清理C、系统修复D、磁盘扫描34、在WINDOWS中，下列关于文件名的叙述，错误的是A、文件名中允许使用空格B、文件名中允许使用货币符号C、文件名中允许使用星号D、文件名中允许使用汉字35、下列关于Windows“回收站“的叙述，错误的是A、“回收站“的内容不占用硬盘空间B、“回收站“尚未清空之前，可以恢复“回收站“中从硬盘上删除的文件或文件夹C、软盘上被删除的文件或文件夹可以“回收站“将其恢复D、执行“文件“菜单中的”清空回收站“命令后，便可将“回收站“中的全部内容恢复到系统中。
36、下列关于Windows“剪贴板”的叙述，错误的是A、“剪贴板“中的信息可以被多次使用B、“剪贴板“是Windows在内存中开辟的一块临时存储区C、“剪贴板“的信息超过一定数量时，会自动清空，以便节省内存空间。
D、“剪贴板“的主要功能是在Windows文件之间传递信息。
37、在Word2003中，要对文档中多个不连续的段落设置相同的格式，最高效的操作方法是A、选用同一个样式来设置这些段落的格式B、选用同一个摸板来设置这些段落的格式C、利用替接命令来设置这些段落的格式D、将插入点定位在样板段落处，单击格式刷按纽，再将鼠标指针拖过其他各个需要设置格式的段落。
38、Word2003的查找和替换功能很强，下列不属于其功能的是A、能够查找和替换带格式或样式的文本B、能够查找图形对象C、能够用通配字符进行快速、复杂的查找和替换D、能够查找和替换文本中的格式39、在Word2003中，选顶文档的非最后一段，进行有效分栏操作后，必须在视图中才能看到分栏的效果。
A、普通B、页面C、大纲D、WEB 版式40、执行Word2003中“插入“菜单的”图片“命令，不可以插入A、公式B、剪贴画C、艺术字D、自选图形41、在Word2003中，删除文档的一个段落标记，将前后两段文字合并成一个段落后，远段落内容的字体格式将A、变成前一个段落的格式B、变成后一段落的格式C、没有变化D、两段的格式都变成系统默认格式42、在Word2003的“文件“下拉菜单的下部，通常会列出若干文件，这些文件是A、目前均处于打开状态的文件B、目前正排队等待打印的文件C、最近由Word处理过的文件D、当前目录中扩展名43、在Word2003中，下列关于页眉、页脚的叙述，错误的是A、文档内容和页眉、页脚可以在同一窗口编辑B、文档内容和页眉、页脚将一起打印C、奇偶页可以分别设置不同的页眉、页脚D、页眉、页脚中也可以进行格式设置或插入剪贴画44、在Excel2003中，若要选择不相邻的单元格或单元格区域，可以先选定第一个单元格或单元格区域，然后在按住键选定其他的单元格或单元格区域。