研究生入学试题
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研究生入学考试试题一、选择题(每题2分,共20分)1. 下列哪项不是研究生入学考试的必备条件?A. 本科毕业证书B. 英语六级证书C. 身份证D. 高中毕业证书2. 研究生入学考试通常包括哪两个主要部分?A. 笔试和面试B. 数学和英语C. 政治和专业课D. 英语和专业课3. 下列哪项不属于研究生入学考试的面试内容?A. 学术背景B. 研究兴趣C. 个人爱好D. 专业技能4. 研究生入学考试的笔试部分通常包括哪些科目?A. 语文、数学、英语B. 数学、英语、专业课C. 政治、英语、专业课D. 政治、数学、专业课5. 研究生入学考试的英语科目主要测试哪些能力?A. 听力和写作B. 阅读和翻译C. 听力、阅读和写作D. 口语和写作6. 研究生入学考试的数学科目主要考察哪些内容?A. 高中数学知识B. 大学数学知识C. 初中数学知识D. 概率论和统计学7. 研究生入学考试的政治科目通常包含哪些内容?A. 马克思主义基本原理B. 中国历史C. 世界地理D. 国际政治8. 研究生入学考试的专业课考试通常由谁来命题?A. 教育部B. 招生学校C. 国家考试中心D. 地方教育局9. 下列哪项不是研究生入学考试的备考策略?A. 系统复习B. 题海战术C. 忽视基础知识D. 模拟考试10. 研究生入学考试的面试通常在什么阶段进行?A. 笔试之前B. 笔试之后C. 笔试当天D. 没有固定时间二、填空题(每题2分,共20分)11. 研究生入学考试的笔试成绩通常占总成绩的________%。
12. 研究生入学考试的面试成绩通常占总成绩的________%。
13. 研究生入学考试的数学科目主要考察考生的________、________和________。
14. 研究生入学考试的英语科目中的翻译部分通常包括________翻译和________翻译。
15. 研究生入学考试的政治科目中,考生需要掌握________、________和________等基本原理。
经济(jīngjì)学院南开大学(nánkāidàxué)2004年研究生进学考试(rùxuékǎoshì)试题考试(kǎoshì)科目:专业根底(gēndǐ)〔微瞧经济学、宏瞧经济学、中国近代经济史〕专业:经济史第一局部微瞧经济学、宏瞧经济学〔共100分〕一、简答题〔每题6分,共30分〕1.对比序数效用论和基数效用论在描述者均衡时的区不。
2.关于厂商来讲,其产品的需求弹性大于1和小于1对其价格战略〔采取落价依然涨价〕将产生何种妨碍?3.什么是边际产品转换率,当它与消费者对这两种产品和边际替代率不等时,市场将怎么样调整?4.什么是有效需求,在市场经济中,引起有效需求缺乏的缘故通常有哪些?5.财政赤字对宏瞧经济有哪些妨碍?二、计算题:〔每题10分,共20分〕1.在多马〔Domar〕增长模型中,要维持国民收进的动态均衡,投资的增长路径必须符合下式要求:〔a〕请讲明ρ和s的含义。
〔b〕假如在现实中投资的增长速度为r,与动态均衡所要求的增长速度不同〔r≠ρs〕,将会发生什么情况?请给出严格的数学证实。
2.假定某企业A的生产函数为:;另一家企业B的生产函数为:。
其中Q为产量,K和L分不为资本和劳动的投进量。
〔a〕假如两家企业使用同样多的资本和劳动,哪一家企业的产量大?〔b〕假如资本的投进限于9单位,而劳动的投进没有限制,哪家企业劳动的边际产量更大?三、论述题〔每题15分,共30分〕1.什么是信息不对称,请举例讲明什么原因信息不对称人导致市场失灵?2.在固定汇率或盯住汇率制度下,那些因素会造本钞票国货币升值的压力?依据你学到的经济学知识,分析人民币假如升值可能对本国经济和其它国家经济造成的妨碍。
四、分析题〔共20分〕依据美国的在关统计,〔1〕2002年美国的对外贸易赤字规模为4890亿美元,占美国当年GDP的4.7%;〔2〕自2000年以来,美国政府开支不断扩大,从2000年相当于GDP总额2%的财政盈余,开展为2003年相当于GDP总额4%的财政赤字;〔3〕美国的失业率居高不下,到达九年来6.1%的最高水平;〔4〕与此同时,美联储在最近仍然维持45年以来的最低利率水平。
中国海洋大学2008年硕士研究生入学考试试题科目代码:416科目名称:普通动物学和生态学第一部分:动物学一、填空题(每空0.5分,共15分)1、水螅的外胚层主要包括皮肌细胞、腺细胞、 ___________ 、_________ 、 _______ 和间细胞。
2、________________________________________ 环毛蚓的神经系统包括由1对 ______________ 愈合成的脑、 _________________________________ 、_______________________ 和腹神经索,为典型的 ______________ 神经。
3、中国对虾(或日本沼虾)有20个体节,________ 对附肢。
其中第5对为_______________ 。
4、海参发育过程中要经历 ________________ 、______________ 和五触手幼虫,变态成幼参。
5、鸟类仅具有_____ 体动脉弓,而哺乳类则仅具有_________ 体动脉弓。
6、原生动物的三种运动胞器分别是 _____________ 、____________ 、____________ 。
7、现存两栖类的体型大体可分为 _______ 、 _____ 和________ 。
其排泄器官以 ___ 为最重要。
8、文昌鱼的咽部为收集食物和呼吸场所,几乎占据身体的________ ,咽腔内的结构与尾索动物相似,包括 ______________ 、___________ 、围咽沟等。
9、巴西龟属__________ 纲_________ 目的动物,石鳖属___________ 门__________ 纲的动物。
10、Phylum 为分类阶元中的______________ 。
Suborder为分类阶元中的_____________ 。
按照惯例,亚科、科和总科等名称都有标准的字尾,如字尾-oidea表示___________________ 。
2023年全国研究生入学考试真题一、政治理论1. 请分析马克思主义的基本原理和理论构成,并说明其在中国的实践意义。
马克思主义是一种科学的社会理论,主要包括马克思主义哲学、经济学、科学社会主义、历史唯物主义和阶级斗争学说等基本原理。
它以辩证唯物主义和历史唯物主义为核心,具有解释社会现象、指导革命实践和建设社会主义的重要作用。
在中国,马克思主义的实践意义体现在多个方面。
首先,马克思主义为中国提供了一种科学的认识世界和改造世界的方法论。
其次,马克思主义为中国指明了实现社会主义现代化和实现国家富强的道路。
再次,马克思主义为中国树立了为人民服务、实现社会公平正义的价值追求。
最后,马克思主义使中国坚定了对社会主义发展道路的信心,有效应对了各种风险和挑战。
二、数学2. 对于一个函数f(x),其定义域为实数集,若对于任意的x、y∈R,均有f(x+y)=f(x)+f(y),则该函数是否满足线性性质?若不满足,请说明原因。
该函数满足线性性质。
根据题目给出的条件,对于任意的实数x、y,有f(x+y)=f(x)+f(y),这正是线性函数的定义。
线性函数是一种具有可加性和齐次性两个性质的函数,即满足f(x+y)=f(x)+f(y)和f(kx)=kf(x),因此该函数满足线性性质。
三、外语专业3. 请以“2023年全国研究生入学考试”的角度,分析学习外语的重要性,并举例说明外语对个人和国家发展的影响。
学习外语在2023年全国研究生入学考试中具有重要性。
首先,在考试中,外语是必考科目之一,掌握一门外语能提升考生的综合能力,为考生在其他科目上取得好成绩提供基础。
其次,学习外语有助于考生拓宽知识视野,了解国际前沿信息和文化。
此外,外语还具有对个人和国家发展的多重影响。
从个人角度看,学习外语有助于提升个人竞争力。
随着全球化的深入发展,掌握一门外语可以为个人提供更广阔的就业机会和发展空间,提高自身的职业竞争力。
另外,学习外语还有助于培养个人的语言表达能力、跨文化交流能力和解决问题的能力。
2024年全国硕士研究生入学统一考试英语(一)试题Section I Use of EnglishDirections:Read the following text.Choose the best word(s) for each numbered blank and mark A,B,C or D on the ANSWER SHEET.(10 points)There's nothing more welcoming than a door opening for you. 1 the need to be touched to open or close, automatic doors are essential in 2disabled access to buildings and helping provide general3to commercial buildings.Self-sliding doors began to emerge as a commercial product in 1960 after being invented six years4by Americans Dee Horton and Lew Hewitl. They5as a novelty feature, but as their use has grown, their 6 have extended within our technologically advanced world.Particularly7in busy locations or during times of emergency, the doors8crowdmanagement by reducing the obstacles put in people's way.9 making access both in and out of buildings easier for people, the difference in the way many of these doors open helps reduce the total area10 by them. Automatic doors often open to the side, with the panels sliding across one another. Replacing swing doors, these 11 smaller buildings to maximise the usable space inside without having to12 the way for a large, sticking-out door. There are many different types of automatic door, with each13 specific signals to tell them when to open.14 these methods differ, the main15 remain the same.Each automatic door system 16 the light, sound weight or movement in their vicinity as a signal to open. Sensor types are chosen to 17 the different environments they are needed in.18,a busy street might not19 a motion-sensored door, as it would constantly be opening for passers-by. A pressure sensitive mat would be more20 to limit the surveyed area.1.[A]Through [B]Despite [C]Besides [D]Without2.[A]revealing [B]demanding [C]improving[D]tracing3.[A]experience [B]convenience[C]guidance [D]reference4.[A]previously[B]temporarily [C]successively [D]eventually5.[A]held on [B]started out[C]settled down [D]went by6.[A]relations [B]volumes [C]benefits[D]sources7.[A]useful[B]simple [C]flexible [D]stable8.[A]call for [B]yield to [C]insist on [D]act as9.[A]As well as[B]In terms of [C]Thanks to [D]Rather than10.[A]connected[B]shared [C]represented [D]occupied11.[A]allow[B]expect [C]require [D]direct12.[A]adopt [B]lead [C]clear[D]change13.[A]adapting te [B]deriving from [C]relying on[D]pointing at14.[A]Once [B]Since [C]Unless [D]Although15.[A]records [B]positions [C]principles[D]reasons16.[A]controls [B]analyses[C]produces [D]mixes17.[A]decorate [B]compare [C]protect [D]complement18.[A]In conclusion [B]By contrast [C]For example[D]Above all19.[A]identify [B]suit[C]secure [D]include20.[A]appropriate[B]obvious [C]impressive [D]delicateSection 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 the ANSWER SHEET.(40 points)Text 1Nearly 2000 years ago, as the Romans began to pull out of Scotland, they left behind a curious treasure:10 tons of nails, nearly a million of the things. The nail hoard was discovered in 1960 in a four-metre-deep pit covered by two metres of gravel.Why had the Romans bunied a million nails? The likely explanation is that the withdrawal was rushed, and they didn't want the local Caledonians getting their hands on 10 tons of weapon-grade iron. The Romans buried the nails so deep that they would not be discovered for almost two millennia.Later civilisations would value the skilled blacksmith's labour in a nail even more than the raw material. As Roma Agrawal explains in her new delightful book Nuts and Bolts, early 17th-century Virginians would sometimes bum down their homes if they were planning to relocate. This was an attempt to recover the valuable nails, which could be reused after sifting the ashes. The idea that one might bum down an entire house just to reclaim the nails underlines how scarce, costly and valuable the simple-seeming technology was.The price of nails fell by 90%between the late 1700s and mid-1900s,as economist Daniel Sichel points out in a research paper. According to Sichel, although the falling price of nails was driven partly by cheaper iron and cheaper energy, most of the credit goes to nail manufactures who simply found more efficient ways to turn steel into nails.Nails themselves have changed over the years, but Sichel studied them because they haven't changed much. Roman lamps and Roman chariots are very different from LED strips and sports cars,but Roman nails are still clearly nails. It would be absurd to try to track the changing price of sports cars since 1695,but to ask the same question of nails makes perfect sense.I make no apology for being obsessed by a particular feature of these objects: their price. I am an economist, after all. After writing two books about the history of inventions, one thing Ive leamt is that while it is the enchantingly sophisticated technologies that get all the hype, it's thecheap technologies that change the world.The Gutenberg printing press transformed civilisation not by changing the nature of writing but by changing its cost-and it would have achieved little without a parallel collapse in the price of surfaces to write on, thanks to an often-overlooked technology called paper. Solar panels had few niche uses until they became cheap; now they are transforming the global energy system.21.The Romans buried the nails probably for the sake of[A]saving them for future use[B]keeping them from rusting[C]letting them grow in value[D]hiding them from the locals22.The example of early 17th-century Virginians is used to[A]highlight the thriftiness of early American colonists[B]illustrate the high status of blacksmiths in that period[C]contrast the attitudes of different civilisations toward nails[D]show the preciousness of nail-making technology at that time23.What played the major role in lowering the price of nails after the late 1700s?[A]Increased productivity.[B]Wider use of new energies.[C]Fiercer market competition.[D]Reduced cost of raw materials.24.It can be leamed from Paragraph 5 that nails[A]have undergone many technological improvements[B]have remained basically the same since Roman times[C]are less studied than other everyday products[D]are one of the world's most significant inventions25.Which of the following best summarises the last two paragraphs?[A]Cheap technologies bring about revolutionary change.[B]Technological innovation is integral to economic success.[C]Technology defines people's understanding of the world.[D]Sophisticated technologies develop from small inventions.Text 2Parenting tips obtained from hunter-gatherers in Africa may be the key to bringing up more contented children, researchers have suggested. The idea is based on studies of communities such as the Kung of Botswana, where each child is cared for by many adults. Kung children as young as four will help to look after younger ones and baby-wearing", in which infants are carried in slings, is considered the norm.According to Dr Nikhil Chaudhary, an evolutionary anthropologist at Cambridge University, these practices, Known as all oparenting, could lead to less anxiety for children and parents.Dr Annie Swanepoel, a child psychiatrist, believes that there are ways to incorporate them into western life. In Germany, one scheme has paired an old people's home with a nursery. The residents help to look after the children, an arrangement akin to alloparenting. Another measure could be encouraging friendships between children indifferent school years to miror the unsupervised mixed-age playgroups in hunter-gatherer communities.In a paper published in the Journal of Child Psychology and Psychiatry, researchers said that the western nuclear family was a recent invention which family broke with evolutionary history. This abrupt shift to an "intensive mothering narrative", which suggests that mothers should manage childcare alone, was likely to have been harmful. "Such narratives can lead to maternal exhaustion and have dangerous consequences, "they wrote.By contrast, in hunter-gatherer societies adults other than the parents can provide almost half of a child's care. One previous study looked at the Efe people of the Democratic Republic of Congo. It found that infants had an average of 14 alloparents a day by the time they were 18 weeks old and were passed between caregivers eight times an hour.Chaudhary said that parents now had less childcare support from family and social networks than during most of humans'evolutionary history,but introducing additional caregivers could reduce stress and maternal depression,which could have a“knock-on"benefit to a child's wellbeing.An infant bom to a hunter-gatherer society could have more than ten caregivers-this contrasts starkly to nursery settings in the UK where regulations call for a ratio of one carer to four children aged two to three.While hunter-gatherer children leamt from observation and imitation in mixed-age playgroups,researchers said that western"instructive teaching",where pupils are asked to sit still,may contribute to conditions such as attention deficit hyperactivity disorder.Chaudhary said that Britain should explore the possibility that older siblings helping their parents“might also enhance their own social development”26.According to the first two paragraph,alloparenting refers to the practice of[A]sharing child care among community members[B]assigning babies to specific adult caregivers[C]teaching parenting details to older children[D]carrying infants around by their parent27.The scheme in Germany is mentioned to illustrate[A]an attempt to facilitate intergenerational communication[B]an approach to integrating alloparenting into western culture[C]the conventional parenting style in western culture[D]the differences between western African ways ofliving28.According to Paragraph 4,the"intensive mothering narrative"_[A]alleviate parenting pressure[B]considerate family relationships[C]results in the child-centered family[D]departs from the course of evolution29.According to paragraph 6,what can we lean about nursery in the UK?[A]They tend to fall short of official requirements.[B]They have difficulty finding enough caregivers.[C]They ought to improve their carer-to-child ratio.[D]They should try to prevent parental depression.30.Which of the following would be the best title?[A]Instructive teaching:a dilemma for anxious parents[B]For a happier family,learn from the hunter-gatherers[C]Mix-aged playgroup,a better choice for lonely children[D]Tracing the history of parenting:from Africa to EuropeText 3Rutkowski is a Polish digital artist who uses classical painting styles to create dreamy fantasy landscapes.He has made illustrations for games such as Sony's Horizon Forbidden West,Ubisoft's Anno,Dungeons&Dragons,and Magic:The Gathering.And he's become a sudden hit in the new world of text-to-image AI generation.His distinctive style is now one of the most commonly used prompts in the new open-source AI art generator Stable Diffusion,which was launched late last month.The tool,along with other popular image-generation AI models,allows anyone to create impressive images based on text prompts.For example,type in"Wizard with sword and a glowing orb of magic fire fights a fierce dragon GregRutkowski,"and the system will produce something that looks not a milion miles away from works in Rutkowski's style.But these open-source programs are built by scraping images from the Internet,often without permission and proper attribution to artists.As a result,they are raising tricky questions about ethics and copyright.And artists like Rutkowski have had enough.According to the website Lexica,which tracks over 10 million images and prompts generated by Stable Diffusion,Rutkowski's name has been used as a prompt around 93,000 times.Some of the world's most famous artists,such as Michelangelo,Pablo Picasso,and Leonardo da Vinci,brought up around 2,000 prompts each or less.Rutkowski's name also features as a prompt thousands of times in the Discord of another text-to-image generator,Midjourney.Rutkowski was initially surprised but thought it might be a good way to reach new audiences.Then he tried searching for his name to see if a piece he had worked on had been published.The online search brought back work that had his name attached to it but wasn't his.“It's been just a month.What about in a year?I probably won't be able to find my work out there because[the internet]will be flooded with AI art,"Rutkowski says."That's concerning."“There is a coalition growing within artist industries to figure out how to tackle or mitigate this,"says Ortiz.The group is in its early days of mobilization,which could involve pushing for new policies or regulation.One suggestion is that AI models could be trained on images in the public domain,and AI companies could forge partnerships with museums and artists,Ortiz says.31.What can be leamed about Rutkowski from the first two paragraphs?[A]He is enthusiastic about AI generation painting.[B]He is popular with the users of an Al art generator.[C]He attracts admiration from other illustrators.[D]He specializes in classical painting digitalization.32.The problem with open-source AI art generators is that they[A]lack flexibility in responding to prompts[B]produce artworks in unpredictable styles[C]make unauthorized use of online images[D]collect user information without consent33.After searching online,Rutkowski found[A]a unique way to reach audiences[B]a new method to identify Al images[C]AI-generated work bearing his name[D]heated disputes regarding his copyright34.According to Ortiz,AI companies are advised to[A]campaign for new policies or regulations[B]offer their services to public institutions[C]strengthen their relationships with AI users[D]adopt a different strategy for Al model training35.What is the text mainly about?[A]Artists'responses to Al art generation.[B]AI's expanded role in artistic creation.[C]Privacy issues in the application of Al.[D]Opposing views on AI development.Text 4The miracle of the Chesapeake Bay lies not in its depths,but in the complexity of its natural construction,the interaction of fresh and saline water and the mix of land and water.The shallows provide homes for hundreds of species while storing floodwaters,filtering pollutants from water,and protecting nearby communities from potentially destructive storm surges.All this was put at great risk late last month,when the US Supreme Court issued a ruling in an Idaho case that provides the EPA far less authority to regulate wetlands and waterways.Specifically,a 5-4 majority decided that wetlands protected by the EPA under it Clean Water Act authority must have a“continuous surface connection”to bodies of water.This narrowing of the regulatory scope was a victory for builders,mining operators and other commercial interests often at odds with environmental rules.And it carries"significant repercussions for water quality and flood control throughout the US,"as Justice Brett Kavanaugh observed.In Maryland,the good news is that there are many state laws in place that provide wetlands protections.But that's a very shortsighted view,particularly when it comes to the Chesapeake Bay.The reality is that water and the pollutants that so often come with it,don't respect state boundaries.The Chesapeake draws from a 64000-square-mile watershed that extends to Virginia,Pennsylvania,New York,West Virginia,the District of Columbia and Delaware.Will thosejurisdictions extend the same protections now denied under Sackett V.EPA?Perhaps some,but all?That seems unlikely.It is too easy,and misleading,to see such court rulings as merely standing up for the rights of land owners when the consequences can be so dire for their neighbors.And it's reminder that they EPA's involvement in the Chesapeake Bay program has long been crucial as the means to transcend the influence of deep-pocketed special interests in neighboring states.Pennsylvania farmers,to use one telling example,aren't thinking about next year's blue crab harvest in Maryland when they decide whether to spread animal waste on their fields,yet the runoff into nearby creeks can have enormous impacts downstream.And so we would also call on state lawmakers from Richmond to Albany to consider reviewing their own wetlands protections and see for themselves the enormous stakes involved.We can't offer them a trip to the Chesapeake Bay model.It's been gone since the 1980s but perhaps a visit to Blackwater National Wildlife Refuge in Dorchester County where American bald eagles fly over tidal marshes so shallow you could not paddle a boat across them but teaming with aquatic life.It's worth the scenic drive.36.The Chesapeake Bay is described in Paragraph 1 as[A]a value natural environment[B]a controversial conservation area[C]a place with commercial potential[D]a headache for nearby communities37.The U.S.Supreme Court's ruling in the Idaho case[A]reinforces water pollution control[B]weakens the EPA's regulatory power[C]will end conflicts among local residents[D]may face opposition from mining operators38.How does the author feel about the future of the Chesapeake Bay?[A]Worried.[B]Puzzled.[C]Relieved[D]Encouraged.39.What can be inferred about the EPA's involvement in the Chesapeake BayProgram?[A]It has restored the balance among neighboring jurisdictions.[B]It has triggered a radical reform in commercial fisheries.[C]It has set a fine example of respecting state authorities.[D]It has ensured the coordination of protection efforts.40.The author holds that the state lawmakers should[A]be cautious about the influence of landowners[B]attach due importance to wetlands protections[C]recognize the need to expand wildlife refugesPart BDirections:Read the following comments on a report about American museums returning artifacts to their countries of origin and a list of statements summarizing the comments.Choose the best statement from the list A-G for each numbered name(41—45).There are two extra choices which you do not need to use.Mark your answers on the ANSWER SHEET.(10 points)(41)HannabSimply,there are people in Nigeria who cannot travel to the Smithsonian Institution to see that part of their history and culture represented by the Benin Bronzes.These should be available to them as part of their cultural heritage and history and as a source of national pride.There is no good reason that these artifacts should be beyond the ordinary reach of the educational objectives or inspiration of the generations to which they were left.They serve no purpose in a museum in the United States or elsewhere except as curious objects.They cannot be compared to works of art produced for sale which can be passed from hand to hand and place to place by purchase.(42)BuckWe know very exact reproductions of artwork can be and are regularly produced.Perhaps museums and governments might explore some role for the use of nearly exact reproductions as a means of resolving issues relating to returning works of art and antiquities.The context of any exhibit is more important to me than whether the object being displayed is 2,000 years old or 2 months old.In many cases the experts have a hard time agreeing on what is the real object and what is a forgery.Again,the story an exhibit is trying to tell is what matters.The monetary value of the objects on display is a distant second place in importance.(43)SaraWhen visiting the Baltimore Museum of Art,I came across a magnificentlSth-century Chinese sculpture.It inspired me to learm more about the culture that it represented.Artifacts in museums have the power to inspire,and perhaps spark that need to learn and understand the nature of their creators.Having said that,I do feel that whatever artifacts find their way to public museums should,in fact,be sanctioned as having been obtained on loan,legally purchased,or obtained by treaty.Stealing artifacts from other peoples'cultures is obscene;it robs not only the physical objects,but the dignity and spirit of their creators.(44)VictorAncient art that is displaced in foreign countries should be returned.…(缺失)(45)JuliaTo those of you in the comments section,by all means,who are having strong feeling about artifacts being removed from cities in the US and Britain,I would ask you to consider…(缺失)[A]It is clear that countries of origin have never been compensated for stolen artifacts.[B]It is a flawed line of reasoning to argue against returning artifacts to their countries of origin.[C]Museum visitor can still learn as much from artifacts copies after the originals are returmed.[D]Reproductions,even if perfectly made,cannot take the place of the authentic objects.[E]The real value of artifacts can only be recognized in their countries of origin rather than anywhere else[F]Ways to get artifacts from other countries must be decent and lawful.[G]Concern over security is no excuse for refusing to return artifacts to their countries of origin. 参考答案:41.E 42.C 43.F 44.G 45.BPart CDirections:Read the following text carefully and then translate the underlined segments into Chinese.Your translation should be written clearly on the ANSWER SHEET.(10 points)“Elephants never forget”—or so they say—and that piece of folklore seems to have some foundation.The African savanna elephant also known as the African bush elephant,is distributed across 37 African countries.(46)They sometimes travel more than sixty miles to find food or water,anc are very good at working out where other elephants are—even when they are out of ing tracking devices,researchers have shown that they have"remarkable spatial acuity",when finding their way to waterholes,they headed off in exactly the right direction,on one occasion from a distance of roughly thirty miles.What is more,they almost always seem to choose the nearest water hole.(47)The researchers are convinced that the elephants always know precisely where they are in relation to all the resources they need,and can therefore take shortcuts,as well as following familiar routes.Although the cues used by African elephants for long-distance navigation are not yet understood,smell may well play a part.Elephants are very choosy eaters,but until recently litle was known about how they selected their food.(48)One possibility was that they merely used their eyes and tried out the plants they found,but that would probably result in a lot of wasted time and energy,not least because their eyesight is actually not very good.(49)The volatile chemicals produced by plants can be carried a long way,and they are very characteristic:Each plant or tree has its own particular odor signature.What is more,they can be detected even when they are not actually visible.New research suggests that smell is a crucial factor in guiding elephants—and probably other herbivores—to the best food resources.The researchers first established what kinds of plant the elephants preferred either to eat or avoid when foraging freely.They then set up a“food station”experiment,in which they gave elephants a series of choices based only on smell.(50)The experiment showed that elephants may well use smell to identify patches of trees that are good to eat,and secondly to assess the quality ofthe trees within each patch.Free-ranging elephants presumably also use this information to locate their preferred food.参考译文:(46)它们有时跋涉六十多英里寻找食物或水,并且非常善于寻找其他大象的位置——即使它们不在视线范围内。
上海交通大学研究生入学考试数学真题一、选择题1. 下列哪个选项是正确的?A. 2+2=4B. 2+2=5C. 2+2=6D. 2+2=72. 解下列方程组:x + 2y = 52x + 3y = 8A. (1, 2)B. (2, 1)C. (3, 1)D. (1, 3)3. 某商店原价出售一样商品,现在打8折,则折后价格是原价的:A. 10%B. 20%C. 80%D. 90%二、填空题1. 已知函数f(x) = 2x + 5,求f(3)的值。
答:_______________2. 某地每平方公里有5000人口,若该地的面积为3000平方公里,则该地的人口总数为_______________。
三、计算题1. 求下列方程的解:x^2 + 4x + 3 = 02. 求下列集合的交集:A = {1, 2, 3, 4, 5}B = {4, 5, 6, 7}四、证明题证明:对于任意实数x和y,有(x + y)^2 = x^2 + 2xy + y^2。
解答:设x和y为任意实数。
左边:(x + y)^2 = (x + y)(x + y) = x(x + y) + y(x + y) = x^2 + xy + xy + y^2 = x^2 + 2xy + y^2右边:x^2 + 2xy + y^2由左边等于右边,证明得证。
五、应用题某公司从事餐饮业务,每天早上8点至下午5点,共计9小时。
该公司运营部门的工作人员分为3个班次工作,分别是早班、中班和晚班,每个班次的工作时间均为3小时。
请问一天中共有几个班次?解答:一天总共9小时,每个班次工作3小时,所以班次数 = 9小时 / 3小时/班次 = 3个班次六、综合题某商品的原价为200元,商家打折后价格为折后价格,现在又在折后价格的基础上额外打折5%。
求最终价格。
解答:原价200元,打折后价格为折后价格,即0.9 × 200元 = 180元。
在180元的基础上额外打5%折扣,即0.95 × 180元≈ 171元。
研究生入学考试心理学试卷及答案第一部分:选择题1. 下列哪个心理学学派强调个体的自我实现和自我认识?A) 行为主义心理学B) 结构主义心理学C) 功能主义心理学D) 人本主义心理学答案:D) 人本主义心理学2. 心理学中,对于人类行为和心理过程的科学研究的定义是什么?A) 心理学B) 心理学方法C) 心理学原理D) 心理学观点答案:A) 心理学3. 下列哪个心理学学派认为行为是受到环境刺激和人类研究历史的影响?A) 行为主义心理学B) 结构主义心理学C) 功能主义心理学D) 人本主义心理学答案:A) 行为主义心理学第二部分:简答题1. 请简要解释条件反射的概念。
答:条件反射是一种研究过程,在这个过程中,一个原本不具备特定反应的刺激,通过与另一个具有该反应的刺激的关联而获得了产生相应反应的能力。
2. 请简要说明经典条件反射和操作性条件反射之间的区别。
答:经典条件反射是指通过将一个中与具有固定反应的刺激进行重复关联,使得中也能引起相同的反应。
操作性条件反射是指通过行为的后果来增强或减弱该行为的发生频率。
第三部分:论述题请论述心理学在教育领域的重要性。
答:心理学在教育领域起着重要的作用。
首先,心理学研究可以帮助教育者了解学生的认知和情绪发展,从而制定更加科学有效的教学策略。
其次,心理学研究可以揭示研究和记忆的原理,帮助教育者设计更好的课程和研究材料。
此外,心理学研究还可以为教育者提供评估学生研究成绩和行为问题的工具。
综上所述,心理学在教育领域的重要性不可忽视。
以上是研究生入学考试心理学试卷及答案,希望可以帮助你更好地准备考试。
2020年研究生入学统一考试试题(英语一)Section I Use of EnglishDirections:Read the following text. Choose the best word (s) for each numbered blank and mark A, B, C or D on the ANSWER SHEET. (10 points)Even if families are less likely to sit down to eat together than was once the case, millions of Britons will none the less have partaken this weekend of one of the nation's great traditions: the Sunday roast.__1__ a cold winter's day, few culinary pleasures can __2__it.Yet as we report now, the food police are determined that this __3__ should be rendered yet another guilty pleasure __4__ to damage our health.Scientists say the compound is "__11__ to be carcinogenic" but have no hard scientific proof.__12__ the precautionary principle, it could be argued that it is __13__ to follow the FSA advice.__14__, it was rumored that smoking caused cancer for years before the evidence was found to prove a __15__.Doubtless a piece of boiled beef can always be __16__ up on Sunday alongside some steamed vegetables,without the Yorkshire pudding and no wine.But would life be worth living?__17__, the FSA says it is not telling people to cut out roast foods __18__, but to reduce their lifetime intake.However, their __19__ risks coming across as exhortation and nannying.Constant health scares just __20__ with no one listening.1. A In B Towards C On D Till2. A match B express C satisfy D influence3. A patience B enjoyment C surprise D concern4. A intensified B privileged C compelled D guaranteed5. A issued B received C ignored D canceled6. A under B at C for D by7. A forget B regret C finish D avoid8. A partially B regularly C easily D initially9. A Unless B Since C If D While10. A secondary B external C inconclusive D negative11. A insufficient B bound C likely D slow12. A On the basis of B At the cost of C In addition to D In contrast to13. A interesting B advisable C urgent D fortunate14. A As usual B In particular C By definition D After all15. A resemblance B combination C connection D pattern16. A made B served C saved D used17. A To be fair B For instance C To be brief D in general18. A reluctantly B entirely C gradually D carefully19. A promise B experience C campaign D competition20. A follow up B pick up C open up D end upSection 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 the ANSWER SHEET. (40 points)Text 1A. consolidate the town city ties in BritainB. promote cooperation among Brain's townsC. increase the economic strength of Brain's townsD. focus Brain's limited resources on cultural events.23. The author suggests that a title holder is successful only if it ______A. endeavor to maintain its imageB. meets the aspiration of its peopleC. brings its local arts to prominenceD. commits to its long-term growth24. “Glasgow”is mentioned in Paragraph 3 to present ______A. a contrasting caseB. a supporting exampleC. a background storyD. a related topic25. What is the author's attitude towards the proposal?A. SkepticalB. ObjectiveC. FavorableD. CriticalText 2Scientific publishing has long been a licence to print money. Scientists need joumals in which to publishtheir research, so they will supply the articles without monetary reward. Other scientists perform the specialised work of peer review also for free, because it is a central element in the acquisition of status and the production of scientific knowledge.With the content of papers secured for free, the publisher needs only fnd a market for its journal. Until this century, university libraries were not very price sensitive. Scientific publishers routinely report profit margins approaching 40% on their operations, at a time when the rest of the publishing industry is in an existential crisis.The Dutch giant Elsevier, which claims to publish 25% of the scientific papers produced in the world,made profits of more than £900m last year, while UK universities alone spent more than £210m in 2016 toenable researchers to access their own publicly funded research; both figures seem to rise unstoppably despite increasingly desperate efforts to change them.The most drastic, and thoroughly illegal, reaction has been the emergence of Sci-Hub, a kind of global photocopier for scientific papers, set up in 2012, which now claims to offer access to every paywalled article published since 2015. The success of Sci-Hub, which relies on researchers passing on copies they have themselves legally accessed, shows the legal ecosystem has lost legitimacy among its users and must be transformed so that it works for all participants.In Britain the move towards open access publishing has been driven by funding bodies. In some ways it has been very successful. More than half of all British scientific research is now published under open access terms: either freely available from the moment of publication, or paywalled for a year or more so that the publishers can make a profit before being placed on general release.Yet the new system has not worked out any cheaper for the universities. Publishers have responded to the demand that they make their product free to readers by charging their writers fees to cover the costs of preparing an article. These range from around £500 to $5,000. A report last year pointed out that the costs both of subscriptions and of these’’article preparation costs’’had been steadily rising at a rate above inflation. In some ways the scientific publishing model resembles the economy of the social internet: labour is provided free in exchange for the hope of status, while huge profits are made by a few big firms who run the market places. In both cases, we need a rebalancing of power.26. Scientific publishing is seen as“a licence to print money" partly because________[A] its funding has enjoyed a steady increase .[B] its marketing strategy has been successful.[C] its payment for peer review is reduced.[D] its content acquisition costs nothing.27. According to Paragraphs 2 and 3, scientific publishers Elsevier have________[A] thrived mainly on university libraries.[B] gone through an existential crisis.[C] revived the publishing industry.[D] financed researchers generously.28. How does the author feel about the success of Sci-Hub?[A] Relieved.[B] Puzzled.[C] Concerned[D] Encouraged.29. It can be learned from Paragraphs 5 and 6 that open access terms________[A]allow publishers some room to make money.[B] render publishing much easier for scientists.[C] reduce the cost of publication substantially.[D] free universities from financial burdens.30. Which of the following characterises the scientific publishing model?[A] Trial subscription is offered.[B] Labour triumphs over status.[C] Costs are well controlled.D] The few feed on the many.Text 3Progressives often support diversity mandates as a path to equality and a way to level the playing field. But all too often such policies are an insincere form of virtue-signaling that benefits only the most privileged and does little to help average people.A pair of bills sponsored by Massachusetts state Senator Jason Lewis and House Speaker Pro Tempore Patricia Haddad, to ensure "gender parity" on boards and commissions, provide a case inpoint.Haddad and Lewis are concerned that more than half the state-government boards are less than 40 percent female. In order to ensure that elite women have more such opportunities, they have proposed imposing government quotas. If the bills become law, state boards and commissions will be required to set aside 50 percent of board seats for women by 2022.The bills are similar to a measure recently adopted in Califomia, which last year became the first state to require gender quotas for private companies. In signing the measure, California Governor Jerry Brown admitted that the law, which expressly classifies people on the basis of sex, is probably unconstitutional.The US Supreme Court frowns on sex-based classifications unless they are designed to address an "important" policy interest, Because the California law applies to all boards, even where there is no history of prior discrimination, courts are likely to rule that the law violates the constitutional guarantee of "equal protection".But are such government mandates even necessary? Female participation on corporate boards may not currently mirror the pereentage of women in the general population, but so what?The number of women on corporate boards has been steadily increasing without government interference. According to a study by Catalyst, between 2010 and 2015 the share of women on the boards of global corporations increased by 54 percent.Requiring companies to make gender the primary qualification for board membership will inevitably lead to less experienced private sector boards. That is exactly what happened when Norway adopted a nationwide corporate gender quota.Wrting in The New Republic, Alice Lee notes that increasing the number of opportunities for board membership without increasing the pool of qualified women to serve on such boards has led to a"golden skirt "phenomenon, where the same clite women scoop up multiple seats on a variety of boards.Next time somebody pushes corporate quotas as a way to promote gender equity, remember that such policies are largely self-serving measures that make their sponsors feel good but do litle to help average women.31. The author believes that the bills sponsored by Lewis and Haddad wills________[A] help little to reduce gender bias.[B] pose a threat to the state government.[C] raise women's position in politics.[D] greatly broaden career options.32. Which of the following is true of the California measure?[A] It has irritated private business owners.[B] It is welcomed by the Supreme Court,[C] It may go against the Constitution.[D] It will settle the prior controversies.33. The author mentions the study by Catalyst to ilustrate____[A] the harm from arbitrary board decision.[B] the importance of constitutional guaranees.[C] the pressure on women in global corporations.[D] the needlessness of government interventions.34. Norway's adoption of a nationwide corporate gender quota has led to____[A] the underestimation of elite women's role.[B] the objection to female participation on boards.[C] the entry of unqualified candidates into the board.[D] the growing tension between labor and management.35. Which of the following can be inferred from the text?[A] Women's need in employment should be considered.[B] Feasibility should be a prime concern in policymaking.[C] Everyone should try hard to promote social justice.[D] Major social issues should be the focus of legislation.Text 4Last Thursday, the French Senate passed a digital services tax, which would impose an entirely new taxon large multinationals that provide digital services to consumers or users in France. Digital services include everything from providing a platform for selling goods and services online to targeting advertising based on user data, and the tax applies to gross revenue from such servces. Many French politicians and media outlets have referred to this as a“GAFA tax," meaning that it is designed to apply primarily to companies such as Google, Apple, Facebook and Amazon- in other words, multiational tech companies based in the United States.The digital services tax now awaits the signature of President Emmanuel Macron, who has expressed support for the measure, and it could go into effect within the next few weeks. But it has already sparked significant controversy, with the Unite Sates trade representative opening an investigation into whether the tax discriminates against American companies, which in turn could lead to trade sanctions against France.The French tax is not just a unilateral move by one country in need of revenue. Instead, the digital services tax is part of a much larger trend, with countries over the past few years proposing or putting in place an alphabet soup of new international tax provisions. These have included Britain's DPT (diverted profits tax), Australia's MAAL (multinational antiavoidance law), and India's SEP (significant economic presence) test, to name but a few. At the same time, the European Union, Spain, Britain and several other countries have all seriously contemplated digital services taxes.These unilateral developments differ in their specifics, but they are all designed to tax multinationals on income and revenue that countries believe they should have a right to tax, even if international tax rules do not grant them that right. In other words, they all share a view that the international tax system has failed to keep ;up with the current economy.In response to these many unilateral measures, the Organization for Economic Cooperation and Development (OECD) is currently working with 131 countries to reach a consensus by the end of 2020 on an international solution. Both France and the United States are involved in the organization' s work, but France's digital services tax and the American response raise questions about what the future holds for the international tax system.France‘s planned tax is a clear warning: Unless a broad consensus can be reached on reforming the international tax system, other nations are likely to follow suit, and American companies will face a cascade of different taxes from dozens of nations that will prove burdensome and costly.36. The French Senate has passed a bill to_____[A] regulate digital services platforms.[B] protect French companies' interests .[C] impose a levy on tech multinationals.[D] curb the influence of advertising.37. It can be learned from Paragraph 2 that the digital services tax _____[A] may trigger countermeasures against France.[B] is apt to arouse criticism at home and abroad.[C] aims to ease international trade tensions.[D] will prompt the tech giants to quit France.38. The countries adopting the unilateral measures share the opinion that _____[A] redistribution of tech giants' revenue must be ensured.[B] the current international tax system needs upgrading.[C] tech multinationals' monopoly should be prevented.[D] all countries ought to enjoy equal taxing rights.39. It can be learned from Para 5 that the OECO's current work_____[A] is being resisted by US companies.[B] needs to be readjusted immediately.[C] is faced with uncertain prospects.[D] needs to in involve more countries.40. Which of the following might be the. best title for this text?[A] France Is Confronted with Trade Sanctions[B] France leads the charge on Digital Tax[C] France Says "NO" to Tech Multinationals[D] France Demands a Role in the Digital EconomyPart BDirections:In the following text, some sentences have been removed. For Questions 41 -45, choose the most suitable one from the fist A-G to fit into each of the numbered blanks. There are two extra choices, which do not fit in any of the gaps. Mark your answers on ANSWER SHEET. (10 points)[A] Eye fixactions are brief[B] Too much eye contact is instinetively felt to be rude[C] Eye contact can be a friendly social signal[D] Personality can affect how a person reacts to eye contact[E] Biological factors behind eye contact are being investigated[F] Most people are not comfortable holding eye contact with strangers[G] Eye contact can also be aggressive.In a social situation, eye contact with another person can show that you are paying attention in a friendly way. But it can also be antagonistic such as when a political candidate tums toward their competitor during a debate and makes eye contact that signals hostility. Here 's what hard science reveals about eye contact:41. ________________We know that a typical infant will instinctively gaze into its mother's eyes, and she will look back . This mutual gaze is a major part of the attachment between mother and child. In adulthood, lookingsomeone else in a pleasant way can be a complimentary sign of paying attention. It can catch someone's attention in a crowded room, "Eye contact and smile" can signal availability and confidence,a common-sense notion supported in studies by psychologist Monica Moore. Neuroscientist Bonnie Augeung found that the hormone oxytocin increased the amount of eye contact from men toward the interviewer during a brief interview when the direction of their gaze was recorded. This was also found in high- functioning men with some autistic spectrum symptoms, who may tend to avoid eye contact. Specific brain regions that respond during direct gaze are being explored by other researches, using advanced methods of brain scanning.With the use of eye-tracking technology, Julia Minson of the Harvard Kennedy School of Government concluded that eye contact can signal very different kinds of messages, depending on the situation While eye contact may be a sign of connection or trust in friendly situations, it's more likely to be associated with dominance OF intimidation in adversarial situations. Whether you're a politician or a parent, it might be helpful to keep 'in mind that trying to maintain eye contact may backfire if you're trying to convince someone who has a different set of beliefs than you," said Minson.When we look at a face or a picture, our eyes pause on one spot at a time, often on the eyes or mouth. These pauses typically occur at about three per second, and the eyes then jump to another spot, until several important points in the image are registered like a series of snapshots. How the whole image is then assembled and perceived is still a mystery although it is the subject of current research.In people who score high in a test of neuroticism, a personality dimension associated with self-consciousness and anxiety, eye contact triggered more activity associated with avoidance, according to the Finnish researcher Jari Hietanen and colleagues. Our findings indicate that people do not only feel different when they are the centre of attention but that their brain reactions also differ-" A more direct finding is that people who scored high for negative emotions like anxiety looked at others for shorter periods of time and reported more comfortable feelings when others did not look directly at them.Part C TranslationDirections:Read the following text carefully and then translate the underlined segments into Chinese. Your translation should be written neatly on the ANSWER SHEET. (10 points)Following the explosion of creativity in Florence during the 14th century known as the Renaissance, the modern world saw a departure from what it had once known. It turned from God and the authority of the Roman Catholic Church and instead favoured a more humanistic approach to being. Renaissance ideas had spread throughout Europe well into the17th century, with the arts and sciences flourishing extraordinarily among those with a more logical disposition. 46.With (the gap between)the church's teachings and ways of thinking being eclipsed by the Renaissance, the gap between the medieval and modern periods had been bridged, leading to new and unexplored intellectual territories.During the Renaissance, the great minds of Nicolaus Copernicus, Johannes Kepler and Galileo Galilei demonstrated the power of scientific study and discovery. 47. Before each of their revelations, many thinkers at the time had sustained more ancient ways of thinking, including the geocentric view that the Earth was at the centre of our universe. Copernicus theorized in 1543 thatin actual fact, all of the planets that we knew of revolved not around the Earth, but the Sun, a system that was later upheld by Galileo at his own expense. Offering up such a theory during a time of high tension between scientific and religious minds was branded as heresy,and any such heretics that continued to spread these lies were to be punished by imprisonment or even death. Galileo was excommunicated by the Church and imprisoned for life for his astronomical observations and his support of the heliocentric principle.48. Despite attempts by the Church to strong-arm this new generation of logicians and rationalists, more explanations for how the universe functioned were being made,and at a rate that the people-including the Church -could no longer ignore. It was with these great revelations that a new kind of philosophy founded in reason was born.The Church's long-standing dogma was losing the great battle for truth to rationalists and scientists. This very fact embodied the new ways of thinking that swept through Europe during most of the 17th century. 49. As many took on the duty of trying to integrate reasoning and scientific philosophies into the world. The Renaissance was over and it was time for a new era-the Age of Reason.The 17th and 18th centuries were times of radical change and curiosity. Scientific method,reductionism and the questioning of Church ideals was to be encouraged, as were ideas of liberty, tolerance and progress. 50. Such actions to seek knowledge and to understand what information we already knew were captured by the Latin phrase'sapere aude'or 'dare to know', after Immanuel Kant used it in his essay An Answer to the Question: What is Enlightenment? It was the purpose and responsibility of great minds to go forth and seek out the truth, which they believed to be founded in knowledge.Section IV WritingPart ADirections:The Student Union of your university has assigned you to inform theinternational students an upco ming singing contest.Write a notice in about100words.Write your answer on the ANSWER SHE ET.Do not use your name in the notice.Part B52: Directions:Write an essay of 160-200 words based on the picture below. In your essay, you should:1)Describe the picture briefly;2)Interpret the implied meaning, and3)Give your comments。
2024全国硕士研究生入学考试初试《311教育学专业基础综合》模拟试题及答案学校:________ 班级:________ 姓名:________ 考号:________一、单选题(35题)1.为了研究教师的强化方式与学生学业成绩之间的关系,某研究者把被试学生分成受表扬组、受训斥组、静听组、无强化组等四种强化方式组开展为期一年的实验研究。
这种研究设汁违背了教育研究的()A.客观性跺则B.创新性原则C.理论联系实际原则D.伦理原则2.20世纪30年代英国的《哈多报告》提出的教育改革的目标是A.初等教育均衡发展B.中等教育面向所有儿童实施C.高等教育大众化D.普通与职业教育融合发展3.人在婴儿时,还是一个软弱无能的生物体,依靠后天的学校教育逐渐的成为一个能有效地参与社会生活的主体,这说明教育具有()A.个体社会化功能B.个体个性化功能C.教育的个人谋生功能D.教育的个人享用功能4.研究问题与研究假设的关系是( )A.研究问题与研究假设没有直接关系B.研究假设的叙述是直接从研究问题的叙述中产生的C.研究问题的叙述比研究假设的叙述更具有操作性D.研究问题就是研究假设5.课程评价的理论和模式有多种,其中一种的核心思想是,目标是课程评价的依据和出发点,通过测量目标的达到程度判断教学效果。
课程的有效性取决于课程实施时学生行为发生的变化,评价者关注课程是否真正发生了作用。
这种评价理论是()A.科学——实证主义课程评价观B.科学——自然主义课程评价观C.人文——自然主义课程评价观D.人文——实证主义课程评价观6.强调古典自由教育,注重经典名著的学习,对美国高等教育和成人教育产生了广泛影响的教育思潮是()A.永恒主义教育思潮B.新托马斯主义教育思潮C.要素主义教育思潮D.现代人文主义教育思潮7.中国古代早起教会学校中开设儒学的经典课程是为了()A.满足在校士人夫子弟的要求B.执行中国政府的相关文教政策C.提高学生对儒家学说的批判能力D.为了在中国文化坏境中立足8.古罗马帝国后期,创立了基督教哲学体系,并为中世纪基督教教育奠定了理论基础的是()A.昆体良B.西塞罗C.奥古斯丁D.托马斯阿奎那9.某研究者对15位优秀乡村教师的教学日记进行了逐级编码分析,以探索乡村教师专业发展的内源性影响因素,构建相应的理论模型()A.行动研究B.叙事研究C.民族志研究D.扎根理论10.某研究团队采用观察法研究幼儿游戏中的冲突事件。
第一部分氨基酸肽蛋白质一、是非题1、自然界的多肽类物质都有—构型的氨基酸组成,完全没有例外()2、细胞内的组蛋白对阻遏基因的表达起着重要的作用,所以需要种类繁多的组蛋白与这些基因结合()3、胶原蛋白中有重复的疏水性氨基酸序列出现,所以形成大面积的疏水区,相互作用使三股肽链稳定及整齐排列()4多肽类激素,由于都是小分子容易通过靶细胞膜,可以进入细胞内发挥调解代谢的作用5、球状蛋白分子中含有的极性氨基酸残基主要在分子内部,所以能溶于水6、β—折叠仅存在于纤维蛋白中,如蚕丝心蛋白,所以不溶于水7、血红蛋白和肌红蛋白的结构相似,都含有一条肽链的铁卟啉结合蛋白,所以都能与氧结合8、肌红蛋白是由相同的肽链亚基聚合而成的四聚体9、胰岛素的生物合成途径是先分别产生A、B两条链,然后通过S—S键相连10、合成的多聚谷氨酸在pH7时,其γ羧基电离为COO-,由于静电相斥,分子松散,在pH4时并不解离,容易形成螺旋结构。
11、生物摸上的糖蛋白,其含糖部分是与肽链中的γ—羧基或ε—氨基以共价键形式相连,并往往埋藏于脂双层分子中12、肌球蛋白是由相同的肽链亚基聚合而成;肌动蛋白本身还有A TP酶的活性,所以当释放能量时酒引起肌肉收缩13烟草花叶病毒的内核为DNA,外壳为蛋白质,DNA起决定感染宿主的作用,14、免疫球蛋白由两条轻链核两条重链所组成,抗体与抗原的结合只涉及轻链,因为它有可变区,重链的序列基本上都是恒定的,只起维持结构稳定的作用15、血红蛋白与肌红蛋白均为氧的载体,前者是一个典型的别构蛋白因而与氧结合过程中呈现正协同效应,而后者却不是16、测定焦谷—组—脯酰胺的游离氨基与羧基时均呈阴性17、细胞膜上糖蛋白的糖基都位于膜的外侧18、生物活性物质在膜上的受体都是蛋白质19、组氨酸是人体的一种必需氨基酸20、胰岛素原是翻译后的原始产物21、细菌细胞壁中的肽聚糖是一类线性多糖链通过小肽的广泛交联而成的巨大分子,其中氨基酸组成既有L—型也D—有型22血凝时,血纤维蛋白的三条可溶性肽链通过小肽的广泛交联而成的巨大分子,其中氨基酸组成既有L—型也有D—型23、珠蛋白也是球蛋白24、分子病都是遗传病25、蛋白质中所有的氨基酸(除甘氨酸外)都是左旋的26、一个蛋白质样品,在某一条件下用电泳检查,显示一条带,因此说明该样品是纯的27、蛋白质的亚基核和肽链是同义的28、基因表达的产物都是蛋白质29、哺乳动物的激素只能由内分泌腺所产生,通过体液或细胞外液运送到特定部位,从而引起特殊的激动效应核糖核酸酶分子可以还原失活后再重新氧化复活,并重建高级结构,这个实验证明蛋白质的一级结构无条件地决定了高级结构30、疏水作用是维持蛋白质高级结构稳定的一种非常重要的次级键31、胶原蛋白的螺旋与α—螺旋是互为镜面对称的蛋白质的两种构象32、蛋白质的天然构象是在一定条件下的热力学上最稳定的结构,因此它的高级结构的形成是遵循“自我装配”的原则。
可见,基因工程的产物—伸展的肽链总是自然的装配成天然构象33受体就是细胞膜上与某一蛋白质专一而可逆结合的一种特定的蛋白质34、脯氨酸与茚三酮反应生成紫色物质35、生物体内的氨基酸都是L—型的α氨基酸36、蛋白质中的所有氨基酸都可以用酸水解后用氨基酸分析定量测定37、蛋白质的四级机构是第四度空间结构,即蛋白质结构因时间而变化的关系38、垂体后叶的加压素具有抗利尿核少量促子宫平滑肌收缩的功能39、基因中核甘酸序列的变化不一定在基因产物,即蛋白质的氨基酸序列中反应出来40、蛋白质分子中个别氨基酸的取代未必会引起蛋白质活性的改变41内啡肽是一种脑内产生的非肽类激素42、等电点不是蛋白质的特征参数43、二硫键和蛋白质的三级结构密切相关,因此没有二硫键就没有蛋白质的三级结构44、生物膜蛋白的肽链可以不止一次地穿构过脂双层45、催产素和加压素只有三个氨基酸残基不同46、姨蛋白酶专一地水解多肽链中碱性氨基酸的羧基参与形成的肽键47、所有蛋白质的消光系数都是一样的48、凝胶过滤法可以测定蛋白质的分子量,分子量小的蛋白质先流出柱,分子量大的蛋白质后流出柱49、某一激素与茚三酮反应为阴性,当它与羧肽酶作用后不释放游离的氨基酸,因此它为非肽类激素50、胰岛素是由A、B两条链通过正确匹配的二硫键连接二成的蛋白质,,体内从一条肽链的前体经过酶的剪切加工二成51、镰刀型红细胞贫血病是一种先天遗传性的分子病,其病因是由于正常血红蛋白β—链的谷氨酸基被缬氨酸取代52、在蛋白质和多肽分子中,连接氨基酸残基的共价键除肽键外,还有就只有二硫键53、羧肽酶不能水解末端是碱性氨基酸残基和脯氨酸残基的肽键54、从生物体内分离获得的蛋白质和让该蛋白质基因用遗传工程技术在细菌中表达的产物,它们的化学结构是完全相同的55、镰刀型红细胞贫血症是一种先天性遗传病,其病因是由于血红蛋白的代谢发生障碍56、由两条单独肽链经链间二硫键交联,组成蛋白质分子,这两条肽链就是该蛋白质的亚基57、在蛋白质和多肽分子中,只有一种共价键—肽键58、蛋白质在小于等电点的pH溶液中,向阳极移动,而在大于电点的pH溶液中,向阴极移动59、一般讲,从DNA分子的三联体密码中可以推定氨基酸的序列,相反从氨基酸序列也可毫无疑问地推定DNA序列60、对于人体来说,所有外来物质都是抗原,因此都能引起机体产生抗体61、在免疫测定中,单克隆抗体比多克隆抗体具有对抗原更强的专一性62、在蛋白质和多肽分子中,只有一种连接氨基酸残基的共价键—肽键63、丝氨酸和苏氨酸是蛋白质磷酸化唯一的两个位点64、所有的氨基酸中,因α—碳原子是一个不对称碳原子,因此都具有旋光性65、除参与酶原激活和蛋白质降解之外,蛋白质水解酶还参与分泌型免疫球蛋白的分泌66、蛋白质的氨基酸序列是由基因的编码区核苷酸序列决定的,只要将基因的编码序列转入细胞,就能合成相应的蛋白质67、肽链形成稳定的空间结构,非常重要的一点是肽键中的四个原子以及和它相邻的两个α碳原子处于同一个平面上68、丝氨酸是蛋白质的磷酸化位点,因此蛋白质中的丝氨酸残基都能被磷酸化69、蛋白质分子的亚基又叫做结构域70、肌红蛋白和血红蛋白的亚基在一级结构上有明显的同源性,它们的构象和功能十分相似,所以它们的氧结合曲线也是相似的71、在生物体内所有编码蛋白质的基因,都是可由DNA的核苷酸序列推导出蛋白质的氨基酸序列72、迄今为止,还没有发现既含有RNA又含有DNA的病毒73、α—螺旋是蛋白质的一种二级结构,而β—折叠则是蛋白质的三级结构74、大多数膜蛋白的跨膜肽段都是α—螺旋75、蛋白质变性作用的实质就是蛋白质分子中所有的键均被破坏引起天然构象的解体76、蛋白质分子中的结构域、亚基、和超二级结构都是相同的概念77、因为丝氨酸、苏氨酸、酪氨酸都是蛋白质磷酸化的位点,因此所有蛋白质激酶均能使蛋白质中这三种氨基酸残基磷酸化78糖蛋白中的糖肽连接键,是一种共价键简称为糖太键79、电泳和等电聚焦都是根据蛋白质的电荷不同,即酸碱性质不同的两种分离蛋白质混合物的方法80、蛋白质生物合成之后的共价修饰,都属于不可逆的化学修饰81、所有生物催化剂都是蛋白质92、单克隆抗体和多单克隆抗体的区别在于后者可以抗多种抗原93、所谓结合蛋白,就是两种不同蛋白质结合在一起的聚合物94、蛋白质的四级结构可以定义为一些特定三级结构的肽链通过共价键形成的大分子体系的组合95、由两个或几个二级结构单元被连接多肽连接在一起,组成有特殊的几何排列的局部空间结构,这样的结构称为超二级结构96、所有氨基酸中的α—碳原子都是不对称碳原子97、蛋白质变性作用的实质就是蛋白质分子中的共价键和次级键被破坏,从二引起天然构象的解体98、硫—硫键即可用氧化剂氧化断裂,也可用还原剂还原断裂99、所有信号肽的位置均在新生肽的氮端100、病毒是核酸和蛋白质的复合体,每一种病毒都含有蛋白质、DNA和RNA101、合成肽链时,延伸方向是从N端到C端102蛋白质是两性电解质,当溶液的pH在其等电点以上时,蛋白质带负电荷,而pH在其等电点以下时,蛋白质带正电荷二、填空1、胰凝乳蛋白酶专一性的切断()和()的羧基,参与形成的肽键2、胰岛素原()胰岛素活性3、蛋白质分子中的α螺旋结构靠氢键维持,螺旋每转一圈需()个氨基酸残基4、一般说来,球状蛋白质的()性氨基酸残基在其分子内核,()性氨基酸残基在其分子表面5、丝—酪—丝—甲硫—谷—组—苯丙—精—色—甘用胰蛋白酶彻底水解后可得()个肽段6、细胞色素c的脱辅基蛋白与血红素辅基以()键结合7、肌球蛋白本身还有()酶的活性,所以当释放能量时就引起肌肉收缩8、两条相当伸展的肽或同一条肽链的两个伸展的片段之间形成氢键的二级结构单元称为()9、酶蛋白荧光主要来自()氨酸,()氨酸10、凝集素能专一地识别细胞表面的()并与之结合,从而使细胞与细胞相互凝集11、最早提出蛋白质变性理论地中国科学家是()12、血红蛋白与氧的结合过程出现()效应,是通过该蛋白的()现象实现的,它的辅基是()13、精氨酸的COOH pK1为2.17,NH+3 pK2为9.04, 胍基pK3为12.98 ,(PI)为( ).天冬氨酸的COOH pK1为1.88,COOH pK2为3.65,NH+3PK3为9.60 其(PI)为()14、胶原蛋白是由()股肽链组成的超螺旋结构的大分子蛋白质,并含有稀有的()与()残基,这两种氨基酸残基是在翻译后经()作用加工而成的15、膜蛋白按其与脂双层相互作用的不同,可分为()与()两;类16、免疫球蛋白是由()条肽链组成的血清蛋白,但它是由()细胞产生的,每条肽链的氮端为(),是识别抗原的活性区域,碳端部分为()区17、苯丙氨酸是人体的必需氨基酸,这是因为()18、镰刀状贫血病的血红蛋白的β链与正常人的血红蛋白的β链间有()氨基酸残基的差别19、胰岛素的分子量大约是()20、在糖蛋白中,糖基经常与蛋白质的()、()、()残基相连21、有一条肽链,22、抗体就是由抗原诱导机体产生的()球蛋白23、视紫红质蛋白的辅基是()24、谷氨酸的三个解离基团,它们的pK值分别()、()、和()。
市售味精是谷氨酸的单钠盐,它在水溶液的PI为()25、胰蛋白酶的专一性就是在()或()残基右侧的肽键上水解26、明胶是()的部分水解产物27、羧肽酶B专一地从蛋白质的羧基端切下()氨基酸28、在某一特定pH之下,蛋白质带等量的正电荷与负电荷,该pH是该蛋白质的()点29、()不是真正的氨基酸,它经常改变肽链折叠的方式30、在生物膜内的蛋白质,()氨基酸朝向膜分子外侧,而()氨基酸朝向分子内侧31一个球状蛋白,有一百个氨基酸,估计它的分子量大约是()32、赖氨酸有三个解离基团,它们的pK分别为2.18、8.95、10.53。