Networking Concepts-Assignment__ 2
计算机网络教案
计算机网络教案Title: Introduction to Computer NetworksGrade: Secondary Level (Grade 9)Subject: Information TechnologyDuration: 6 Weeks (12-15 lessons)Objectives:1. Understand the basic concepts of computer networks and their significance in the digital world.2. Identify and explain the different types of networks and their characteristics.3. Demonstrate knowledge of network hardware and software components.4. Understand the process of data transmission and network protocols.5. Analyze network security risks and precautions.6. Apply networking concepts to troubleshoot and resolve common networking issues.Week 1: Introduction to Computer Networks- Lesson 1: The importance of computer networks- Lesson 2: Basic network terminologies and definitions- Lesson 3: Classification of computer networks (LAN, WAN, MAN)- Lesson 4: Comparing different network topologies (star, bus, ring)Week 2: Network Components and Protocols- Lesson 1: Understanding network architecture (client-server, peer-to-peer)- Lesson 2: Network hardware (routers, switches, modems)- Lesson 3: Network software (operating systems, network protocols)- Lesson 4: Introduction to TCP/IP protocol suiteWeek 3: Data Transmission and Network Models- Lesson 1: Principles of data transmission (analog vs. digital signals)- Lesson 2: Network layer models (OSI and TCP/IP)- Lesson 3: Addressing and routing in computer networks- Lesson 4: Network performance and bandwidth considerationsWeek 4: Network Security- Lesson 1: Common network security threats and vulnerabilities- Lesson 2: Network security measures (firewalls, antivirus software)- Lesson 3: Encryption and secure communication protocols- Lesson 4: Ethical considerations in network usageWeek 5: Troubleshooting and Network Management- Lesson 1: Identifying network issues and problem-solving strategies- Lesson 2: Network diagnostic tools and techniques- Lesson 3: Network administration and management- Lesson 4: Monitoring and optimizing network performanceWeek 6: Project and Assessment- Lesson 1: Completion and presentation of a group project related to computer networks- Lesson 2: Recapitulation and review of the entire course content- Lesson 3: Final assessment to evaluate students' understanding and knowledge- Lesson 4: Individual feedback and suggestions for further learning resourcesNote: The above plan is flexible and can be modified as per the specific requirements and available resources. Adjustments can also be made based on the pace and progress of the students throughout the course.。
2013专八真题及各种答案
What Do Active Learners Do?There are difference between active learning and passive learning.Characteristics of active learners:I. reading with purposesA. before reading: setting goalsB. while reading: (1) ________II. (2) ______ and critical in thinkingi.e. information processing, e.g.-- connections between the known and the new information-- identification of (3) ______ concepts-- judgment on the value of (4) _____.III. active in listeningA.ways of note-taking: (5) _______.B.before note-taking: listening and thinkingIV. being able to get assistanceA.reason 1: knowing comprehension problems because of (6) ______.B.Reason 2: being able to predict study difficultiesV. being able to question informationA. question what they read or hearB. evaluate and (7) ______.VI. Last characteristicA. attitude toward responsibility-- active learners: accept-- passive learners: (8) _______B. attitude toward (9) ______-- active learners: evaluate and change behaviour-- passive learners: no change in approachRelationship between skill and will: will is more important in (10) ______.Lack of will leads to difficulty in college learning.1.According to the interviewer, which of the following best indicates the relationship between choice and mobility?A.Better educatio n →greater mobility →more choices.B.Better education →more choices →greater mobility.C.Greater mobility →better education →more choices.D.Greater mobility →more choices →better education.2.According to the interview,which of the following details about the first poll is INCORRECT?A.Shorter work hours was least chosen for being most important.B.Chances for advancement might have been favoured by young people.C.High income failed to come on top for being most important.D.Job security came second according to the poll results.3.According to the interviewee,which is the main difference between the first and the second poll?A.The type of respondents who were invited.B.The way in which the questions were designed.C.The content area of the questions.D.The number of poll questions.4.What can we learn from the respondents’answers to items 2,4 and 7 in the second poll?A.Recognition from colleagues should be given less importance.B.Workers are always willing and ready to learn more new skills.C.Psychological reward is more important than material one.D.Work will have to be made interesting to raise efficiency.5.According to the interviewee,which of the following can offer both psychological and monetary benefits?A.Contact with many people.B.Chances for advancement.C.Appreciation from coworkers.D.Chances to learn new skills 6.According to the news item,“sleep boxes”are designed to solve the problems of A.airports.B.passengers.C.architects.D.companies.7.Which of the following is NOT true with reference to the news?A.Sleep boxes can be rented for different lengths of time.B.Renters of normal height can stand up inside.C.Bedding can be automatically changed.D.Renters can take a shower inside the box.8.What is the news item mainly about?A.London’S preparations for the Notting Hill Carnival.B.Main features of the Notting Hill Carnival.C.Police's preventive measures for the carnival.D.Police participation in the carnival.9.The news item reports on a research finding aboutA.the Dutch famine and the Dutch women.B.early malnutrition and heart health.C.the causes of death during the famine.D.nutrition in childhood and adolescence.10.When did the research team carry out the study?A.At the end of World War II.B.Between 1944 and 1945.C.In the 1950s.D.In 2007.TEXT AThree hundred years ago news travelled by word of mouth or 1etter, and circulated in taverns and coffee houses in the form of pamphlets and newsletters.“The coffee houses particularly are.very roomy for a free conversation,and for reading at an easier rate all manner of printed news,”noted one observer.Everything changed in 1833 when the first mass-audience newspaper, TheNew York Sun,pioneered the use of advertising to reduce the cost of news,thus giving advertisers access to a wider audience.The penny press,followed by radio and television,turned news from a two-way conversation into a one—way broadcast,with a relatively small number of firms controlling the media.Now, the news industry is returning to something closer to the coffee house.The internet is making news more participatory,social and diverse,reviving the discursive characteristics of" the era before the mass media.That will have profound effects on society and politics.In much of the world.the mass media are flourishing.Newspaper circulation rose globally by 6% between 2005 and 2009.But those global figures mask a sharp decline in readership in rich countries.Over the past decade,throughout the Western world,people have been giving up newspapers and TV news and keeping up with events in profoundly different ways.Most strikingly, ordinary people are increasingly involved in compiling,sharing,filtering,discussing and distributing news.Twitter lets people anywhere report what they are seeing.Classified documents are published in their thousands online.Mobile·phone footage of Arab uprisings and American tornadoes is posted on social-networking sites and shown on television newscasts.Social-networking sites help people find,discuss and share news with their friends.And it is not just readers who are challenging the media elite.Technology firms including Google,Facebook and Twitter have become important conduits of news.Celebrities and world leaders publish updates directly via social networks;many countries now make raw data available through“open government”initiatives.The internet lets people read newspapers or watch television channels from around the world.The web has allowed new providers of news,from individual bloggers to sites,to rise to prominence in a very short space of time.And it has made possible entirely new approaches to journalism,such as that practiced by WikiLeaks,which provides an anonymous way for whistleblowers to publish documents.The news agenda is no longer controlled by a few press barons and state outlets.In principle,every liberal should celebrate this.A more participatory and social news environment,with a remarkable diversity and range of news sources,is a good thing.The transformation of the news business is unstoppable,and attempts to reverse it are doomed to failure.As producers of new journalism,individuals can be scrupulous with facts and transparent with their sources.As consumers,they can be general in their tastes and demanding in their standards.And although this transformation does raise concerns,there is much to celebrate in the noisy, diverse,vociferous,argumentative and stridently alive environment of the news businessin the ages of the internet.The coffee house is back.Enjoy it.11.According to the passage,what initiated the transformation of coffee-house news to mass-media news?A.The emergence of big mass media firms.B.The popularity of radio and television.C.The appearance of advertising in newspapers.D.The increasing number of newspaper readers.12.Which of the following statements best supports“Now, the Hews industry isreturning to something closer to the coffee house”?A Newspaper circulation rose globally by 6%between 2005 and 2009.B.People in the Western world are giving up newspapers and TV news.C.Classified documents are published in their thousands online.D.More people are involved in finding,discussing and distributing news.13.According to the passage,which is NOT a role played by information technology? A.Challenging the traditional media.B.Planning the return to coffee-house news.C.Providing people with access to classified files.D.Giving ordinary people the chance to provide news.14.The author’S tone in the last paragraph towards new journalism is A.optimistic and cautious.B.supportive and skeptical.C.doubtful and reserved.D.ambiguous and cautious.15.In“The coffee house is back”,coffee house best symbolizesA.the changing characteristics of news audience.B.the more diversified means of news distribution.C.the participatory nature of news.D. the more varied sources of news.TEXT BParis is like pornography.You respond even if you don’t want to.You turn a corner and seea vista,and your imagination bolts away。
软件与微电子学院0910学年第二学期本科课程参考教材
网络协议与组网技术
1、《计算机网络(第四版)》,Andrew S. Tanenbaum著,潘爱民译,清华大学出版社,2004
2、思科网络技术学院教程,CCNA 1,网络基础,人民邮电出版社,2008
3、思科网络技术学院教程,CCNA 2,路由器与路由基础,人民邮电出版社,2008
面向服务架构SOA
1.《面向服务的计算:原理与应用》,喻坚等主编,清华大学出版社,2006
2.《Understanding SOA with Web Services 中文版》,Eric Newcomer等著,徐涵等译,电子工业出版社,2006
企业信息系统
1、《ERP原理、设计、实施(第三版)》,罗鸿编著,电子工业出版社
软件与微电子学院0910学年第二学期本科课程参考教材
课程名称
开课年级
参考教材
日语
09级本科
新版《标准日本语》初级上、下册
数字逻辑
08级本科
《数字电路与数字电子技术》岳怡编,西工大出版社
计算方法
08级本科
《计算方法》,聂玉峰 王振海主编,西北工业大学出版社
信号与系统
08级本科
《信号与系统(第三版)》段哲民等编,电子工业出版社,2008年
(2)Richard J. Roiger, Michael W. Geatz, Data Mining–A Tutorial-Based Primer,数据挖掘基础教程,清华大学出版社,2003.
(3)Michael J.ABerry, Gordon S. Linoff, Data Mining Techniques for Marketing, Sales, and Customer Relationship Management (Second Edition),数据挖掘技术,市场营销,销售与客户关系管理领域应用。机械工业出版社,2006.7.1
实现远大志向从小事做起英语作文
实现远大志向从小事做起英语作文全文共3篇示例,供读者参考篇1Achieving Big Dreams Starts with Small StepsAs a student, I often find myself dreaming big – picturing the amazing things I want to accomplish and the incredible person I hope to become. I imagine myself as a successful entrepreneur running my own company, or a world-renowned scientist making groundbreaking discoveries. Sometimes I even fantasize about becoming an influential political leader or celebrated artist, leaving my mark on the world.While there's nothing wrong with ambitious dreams, the path to making them a reality is rarely a straight line from here to there. True success and fulfillment come from taking one small, practical step after another in the direction of your goals. It's a journey of patience, perseverance, and making the most of every little opportunity along the way.I've realized that real achievement doesn't stem from luck or overnight success. It grows from consistent effort applied to manageable tasks that gradually build skills, experience, andcredibility. Getting good grades isn't about acing every test without trying; it comes from consistently completing assignments, participating in class, and seeking help when I need it. Becoming a talented musician takes daily practice, regularly pushing beyond my current abilities. Even saving up for a big purchase requires making smart spending choices day after day.The small steps I take today might seem insignificant, but they're planting the seeds for my future growth and attainment. If I slack off now because an assignment or chore seems unimportant, I'll inevitably fall behind. But if I stay dedicated to giving my best effort to everything I do, those modest actions will accumulate into achievements I can be proud of. The small disciplines I build become the strong foundation for larger successes down the road.One of the best examples is how I'm preparing for my dream career in business. It would be easy to figure, "Why bother working hard in my economics and accounting classes now? That stuff won't matter until I'm actually running a company someday." But I know those fundamentals will give me a huge advantage when I do start my own entrepreneurial endeavors. Math, writing, public speaking, and computer skills are shaping me into someone capable of analyzing complex situations,communicating clearly, and utilizing modern tools. Even group projects that drive me crazy are helping me learn to collaborate effectively with all types of people.Every part of my education forms a building block for constructing the professional I want to become. The effort I put in today gets me incrementally closer to my long-term aspirations. My activities outside the classroom are equally vital small steps, like volunteering in community service roles that strengthen my leadership abilities and attending networking events to start developing key connections. Every experience further equips me with the diverse skills I'll need to excel.What's more, pushing myself in these pursuits isn't just about gaining practical tools for success – it's also honing inner qualities that are just as essential. Meeting challenges head-on and persisting until I overcome them builds resilience. Striving for excellence instills a strong work ethic. Making sacrifices to invest time in productive activities requires self-discipline. And dealing with setbacks teaches me grit and how to bounce back stronger than ever.These inner strengths shape my character and give me the fortitude to pursue my dreams relentlessly. While external skills and knowledge are crucial, it's the internal drive, passion, andcommitment that turn potential into reality. By embracing the smaller tests and trials along the way, I'm forging an unshakable mindset that will propel me onward no matter how big the future challenges get.Of course, it's not always easy to maintain focus on insignificant-seeming tasks when my sights are set on such monumental long-term goals. On tough days, it can be seriously tempting to blow off responsibilities because they feel inconsequential compared to my grand visions of success. I have to continually remind myself that even tiny efforts are meaningful steps thataccumulate into something greater.Understandably, hits to my motivation sometimes come from peers who dismiss big dreams as unrealistic or make fun of me for "sweatint the small stuff." When I see friends coasting through with minimal effort, it can breed doubts about whether I'm being overzealous. In those moments, I have to block out the negativity and renew my conviction about staying true to my ambitions. The ones working hardest now are the ones who'll be best positioned to turn dreams into reality in the end.My biggest motivators are the people whose extraordinary achievements grew from diligently tending to everyday smalltasks and responsibilities. Business leaders, innovators, artists, athletes – their legendary accomplishments weren't superhuman strokes of luck. They became successful step-by-step by doing their part, no matter how ordinary that part seemed at the time. Their perseverance through challenges, dedication to steady growth, and commitment to giving each pursuit their full effort propelled them to remarkable heights over years and decades.Those role models inspire me to view every class, assignment, job, and experience as an essential piece of the grand journey ahead of me. This mindset is how I'll construct an extraordinary future from the smallest, most ordinary chunks of effort. By showing up, staying focused, and fully embracing every task, I'll piece together the tools, skills, and qualities I need to ultimately achieve my dreams in a huge way. Consistent progress through a series of small steps massively outweighs what can be accomplished through infrequent grand gestures.My big ambitions are like a mighty tower I'm building brick-by-brick, with each simple task I complete forming another block in the structure. If I neglect laying down consistent courses one simple piece at a time, the whole foundation will be unstable or incomplete. But if I steadily keep stacking those bricks through the million little efforts that make up my days,eventually I'll have built an impressively high and strong edifice that elevates me to the incredible future I've envisioned.Dreaming big provides the inspiration, but achieving those dreams comes from embracing every small step along the way as an opportunity to construct my path to the top. When I fully dedicate myself to each modest responsibility and seize every chance to grow through experiences big and small, those unassuming actions are forming an unstoppable momentum carrying me closer with every move. Brick-by-brick, the small stuff adds up to something monumental. By honoring each modest task as a vital part of an ambitious journey, I'm making my remarkable visions an inevitable reality.篇2Achieving Lofty Ambitions by Starting SmallAs a student, I often find myself dreaming big – visions of changing the world, making groundbreaking discoveries, or leaving a lasting legacy. These grand aspirations fuel my motivation and keep me striving for excellence. However, the path to realizing such ambitious goals can seem daunting, even insurmountable at times. It's easy to become overwhelmed bythe sheer scale of our ambitions and lose sight of the practical steps required to bring them to fruition.Through my experiences thus far, I've come to realize that the key to achieving lofty ambitions lies in the seemingly small, everyday actions we take. It's a lesson that has profoundly shaped my approach to pursuing my dreams, and one that I believe holds true for individuals across all walks of life.The temptation to fixate solely on the end goal is strong, but it can lead to a paralysis of sorts, where the enormity of the task ahead becomes paralyzing. Instead, I've learned to break down my grand ambitions into smaller, manageable steps – a series of achievable milestones that build upon one another and propel me forward.This approach not only makes the journey feel less daunting but also allows me to celebrate small victories along the way. Each completed task, no matter how seemingly insignificant, represents progress and momentum. These little wins provide a sense of accomplishment and renewed motivation, fueling my determination to tackle the next challenge.Moreover, by focusing on the present moment and the task at hand, I'm better able to hone my skills, acquire knowledge, and develop the necessary tools to tackle increasingly complexchallenges. It's a process of gradual growth and refinement, where each small step serves as a building block for the next.Consider, for example, a student aspiring to become a renowned writer. The dream of penning a critically acclaimed novel can feel overwhelming, but by committing to writing daily, even if just for a few minutes, they are actively cultivating their craft. Every sentence, every paragraph, every short story or journal entry, is a step towards mastering the art of storytelling and developing a unique voice.Or take the case of a budding entrepreneur with aspirations of building a successful business empire. Instead of being consumed by the daunting task of launching a complex venture from the outset, they might start by identifying a specific problem or need in their community and devising a simple solution. This initial foray into entrepreneurship not only allows them to gain practical experience but also provides invaluable insights into the challenges and intricacies of running a business.The examples are endless, spanning disciplines as diverse as scientific research, artistic pursuits, social activism, and beyond. The common thread, however, is the recognition that lasting, meaningful change rarely happens overnight. It is the cumulative effect of countless small actions, consistently taken over time,that ultimately leads to the realization of even the grandest of ambitions.This philosophy extends beyond the realm of individual achievement and can be applied to broader societal challenges as well. Movements for positive change, whether addressing issues of social justice, environmental conservation, or political reform, often begin with small acts of resistance,awareness-raising, or community organizing. These seemingly insignificant actions can catalyze larger shifts in public consciousness and policy, ultimately leading to transformative change.Of course, the journey towards realizing one's ambitions is rarely linear or without obstacles. Setbacks, failures, and moments of doubt are inevitable. It is during these trying times that the importance of focusing on the small, incremental steps becomes even more crucial. Each minor victory, each lesson learned from a setback, serves as a reminder of the progress made thus far and the resilience required to persevere.Throughout my academic journey, I've witnessed firsthand the power of this approach. Whether it was mastering a challenging concept by breaking it down into smaller, digestible components or tackling a daunting research project by settingachievable milestones, the principle of starting small has proven invaluable.As I look towards the future and the ambitious goals that lie ahead, I carry with me the understanding that true greatness is not achieved through a single, monumental feat but rather through a lifetime of consistent, purposeful effort. Each day presents an opportunity to take one small step closer to realizing my dreams, whether through dedicated study, meaningful conversations, or acts of service to my community.In this way, the pursuit of lofty ambitions becomes not a a daunting, overwhelming endeavor, but a journey of personal growth, self-discovery, and incremental progress. By embracing the philosophy of starting small, I am better equipped to navigate the challenges that inevitably arise, celebrating the small victories along the way while keeping my sights set on the distant horizon.Ultimately, it is this unwavering commitment to consistent, purposeful action, coupled with a recognition of the power that lies in the seemingly insignificant, that will enable me to achieve my lofty ambitions – one small step at a time.篇3Sure, here's an essay titled "Achieving Big Dreams by Starting Small" written from a student's perspective, with around 2,000 words in English.Achieving Big Dreams by Starting SmallAs a student, I often find myself dreaming big – envisioning grand ambitions, lofty goals, and aspirations that seem to stretch beyond the confines of my current reality. Whether it's a burning desire to change the world, make groundbreaking discoveries, or leave an indelible mark on humanity, these dreams fuel my passion and drive me forward. However, the path to realizing such grand visions is rarely a straight line or a series of giant leaps. Instead, it's a journey paved with countless small steps, each one building upon the last, until those seemingly insignificant actions coalesce into something truly remarkable.I vividly remember the first time I grappled with the concept of starting small. It was in my early days of high school, when I found myself captivated by the idea of becoming a writer. I had always been an avid reader, losing myself in the worlds crafted by literary masters, but the thought of creating my own stories seemed like a daunting task. Yet, as the saying goes, "a journey of a thousand miles begins with a single step," and for me, that first step was simply putting pen to paper.Initially, my writing was amateurish, filled with clichés and clumsy phrasing. But with each passing day, I committed myself to the practice of writing, even if it was just a few paragraphs or a short poem. Slowly but surely, my skills began to improve, my vocabulary expanded, and my ability to weave narratives grew stronger. What started as a small endeavor – scribbling in a notebook during study breaks – eventually blossomed into a passion that shaped my academic pursuits and future aspirations.This experience taught me a valuable lesson: the path to greatness is not paved with giant leaps but with a series of deliberate, consistent steps. It's the cumulative effect of small actions, taken day after day, that ultimately leads to remarkable achievements.As I navigated through the challenges of higher education, this lesson became increasingly relevant. Whether it was mastering a complex mathematical concept, tackling a daunting research project, or preparing for a pivotal exam, the key to success lay in breaking down these seemingly insurmountable tasks into manageable, bite-sized pieces.For instance, when faced with the challenge of writing a lengthy dissertation, the mere thought of producing tens ofthousands of words felt overwhelming. However, by setting daily word count goals, even if they were as modest as 500 words, the task became far more manageable. Each day, I chipped away at the mountain, slowly but steadily, until those small efforts culminated in a completed work that I could be proud of.This approach extended far beyond academics, too. When I embarked on a personal fitness journey, the ultimate goal of achieving a significant weight loss or building substantial muscle mass seemed insurmountable at first. But by committing to small, consistent actions – whether it was going for a short walk each day, incorporating a few extra exercises into my routine, or making healthier dietary choices – those incremental changes gradually added up, propelling me towards my desired outcome.The beauty of starting small lies in its accessibility and sustainability. While grand gestures and ambitious undertakings can be inspiring, they often lack staying power and can leave us feeling discouraged or overwhelmed. In contrast, small steps are manageable, allowing us to build momentum and cultivate habits that can be sustained over the long term.Moreover, starting small empowers us to embrace the journey itself, rather than solely fixating on the destination. Each tiny accomplishment, no matter how seemingly insignificant,becomes a source of motivation and encouragement, fueling our determination to keep pushing forward.As I reflect on my own experiences and the wisdom imparted by those who have achieved greatness before me, one thing becomes abundantly clear: the path to realizing our dreams and aspirations is paved with countless small steps. It's the consistent effort, the unwavering commitment, and the willingness to embrace the power of incremental progress that ultimately leads to remarkable achievements.So, to my fellow students and dreamers, I implore you: embrace the power of starting small. Don't be disheartened by the enormity of your goals or the vastness of the challenges that lie ahead. Instead, break them down into manageable pieces, and tackle them one step at a time. Celebrate the small victories, and let them fuel your determination to keep pushing forward.For it is in the accumulation of these seemingly insignificant actions that true greatness is born, and our wildest dreams become reality.。
小学上册第15次英语第四单元期中试卷
小学上册英语第四单元期中试卷英语试题一、综合题(本题有100小题,每小题1分,共100分.每小题不选、错误,均不给分)1.Which animal can fly?A. DogB. FishC. BirdD. Cat答案:C2.My mom, ______ (我妈妈), volunteers at the animal shelter.3.What do you call a person who drives a bus?A. DriverB. ConductorC. Bus driverD. Chauffeur答案:C4.My dad is a great __________ (听众) when I talk.5.Which food is made from milk?A. BreadB. CheeseC. RiceD. Meat答案:B6.What do we call the time when it is very hot outside?A. WinterB. SpringC. SummerD. Fall答案:C7.The _____ (自然景观) features a variety of plant habitats.8.I like to _______ (整理) my room every week.9.My mom loves __________ (社区建设).10.What do we call the place where you can borrow books?A. BookstoreB. LibraryC. ClassroomD. Office答案:B11.My brother has a _________ (篮球) that he plays with every day after _________ (学校).12.River flows northward through _____ (56). The Nile13.__________ (科学会议) facilitate discussions and networking among chemists.14.The _____ (空气) around us is important for plants to breathe.15.What is the capital of Norway?A. OsloB. BergenC. AlesundD. Tromsø16.We have a _____ (活动) this weekend.17.The fruit is ___. (fresh)18.My brother plays the _____ guitar. (acoustic)19.peak) of a mountain is its highest point. The ____20.My grandmother tells the best ____ (stories) before bed.21.The process of evaporation is the transition from liquid to _____.22.We have a ______ (精彩的) cultural festival every year.23.What animal is known for its long neck?A. ElephantB. GiraffeC. KangarooD. Tiger答案:B24.The trees in the _______ provide shade and shelter.25. A __________ is formed by the deposition of sediments over time.26.What is the fastest land animal?A. ElephantB. CheetahC. HorseD. Lion答案:B Cheetah27.My sister likes to ______ (唱歌).28.The _____ (carrot) grows underground.29.What is the color of a ripe tomato?A. GreenB. YellowC. RedD. Orange答案:C30.What is the name of the famous ship that sank in 1912?A. Queen MaryB. TitanicC. LusitaniaD. Britannic答案:B31.What is the name of the famous artist known for his paintings of flowers?A. Pablo PicassoB. Vincent van GoghC. Claude MonetD. Georgia O'Keeffe答案:D Georgia O'Keeffe32.My mom makes the best ______ for dinner. (pasta)33.What do we call a young bear?A. CubB. KidC. PupD. Calf34.What do we call the tool used to cut hair?A. ScissorsB. KnifeC. BladeD. Clipper35. A ____ can often be found resting in the shade.36.__________ (化学问题) arise from practical applications and theoretical concepts.37.What is the name of the famous musician known for his "Thriller" album?A. Elvis PresleyB. Michael JacksonC. PrinceD. Madonna答案:B38.My family loves to __________ on holiday. (度假)39.I planted ______ in my garden.40.What do we call the study of animals?A. ZoologyB. BotanyC. EcologyD. Anthropology答案:A41. A solvent is a substance that dissolves a ______.42.What is the capital of Brazil?A. Rio de JaneiroB. Sao PauloC. BrasiliaD. Salvador答案:C43.What do we call a strong windstorm that forms over the ocean?A. HurricaneB. TornadoC. CycloneD. Typhoon答案:A44.I see a __ in the sky. (cloud)45.The ________ grows in water and floats.46.What do you call a doctor who helps animals?A. DentistB. VeterinarianC. SurgeonD. Pediatrician答案:B47.An alkali is a type of _____ that is soluble in water.48. A goat climbs _______ and rocky hills easily.49.In 1969, humans landed on the __________. (月球)50. A chicken lays ______ (蛋).51.The goldfinch is a small ______ (鸟) known for its bright color.52.The Earth's surface is constantly changing due to natural ______.53.What do you call a large animal that lives in the sea and has fins?A. SharkB. WhaleC. DolphinD. All of the above答案:D54.I enjoy ______ (玩耍) with my cousins.55.It is important to _______ your dreams.56.What is the color of a typical butterfly?A. GrayB. BrownC. ColorfulD. Black57.In 1776, the __________ (Declaration of Independence) was signed in America.58.Which animal is known for its stripes?A. ElephantB. LionC. ZebraD. Giraffe59.How many days are there in a week?A. FiveB. SixC. SevenD. Eight60.What is the name of the famous American landmark that honors presidents?A. Statue of LibertyB. Mount RushmoreC. Lincoln MemorialD. Washington Monument答案:B61. A ______ is a large, flat area of land with few trees.62.Which of these is a mode of transportation?A. BicycleB. BookC. ChairD. Table答案:A63.What do you call a person who sells flowers?A. FloristB. GardenerC. FarmerD. Botanist答案:A64.Which animal can fly?A. DogB. CatC. BirdD. Fish65.My mom loves to decorate our ____ (home).66.What do we call the study of numbers?A. MathematicsB. GeometryC. AlgebraD. Statistics67.What is the name of the popular game where you try to guess words based on clues?A. PictionaryB. CharadesC. TabooD. Scattergories答案:A68.The _______ (Cuban Missile Crisis) brought the world close to nuclear war in 1962.69.The sky is ________ today.70.What do you call a person who tells jokes for a living?A. ComedianB. ActorC. MagicianD. Clown答案:A71.What do you call a large, slow-moving animal with a shell?A. TurtleB. TortoiseC. SnailD. Armadillo答案:B72.The _____ (植物体验设计) can foster creativity and learning.73.The Earth's crust is constantly being ______ by tectonic activity.74.The lifecycle of a plant includes germination, growth, and ______ (开花).75.The __________ is a large area that is covered by trees.76.I enjoy playing ________ (乒乓球) in the park. It helps me stay ________ (健康).77.The _____ (兔子) hops quickly across the grass. It is very cute! 兔子在草地上快速跳跃。
决定写作业的英语
Deciding to do your homework in English can be a strategic choice for several reasons.Here are some detailed insights into why and how you might approach this decision:nguage Proficiency Improvement:Writing in English can significantly enhance your language skills.It forces you to think in the language,which can lead to better fluency and understanding.2.Academic and Professional Advancement:Many academic and professional fields require a high level of English proficiency.By writing your homework in English,you are preparing yourself for future educational and career opportunities.3.Cultural Exposure:Writing in English exposes you to different cultural perspectives and ways of thinking.It can broaden your horizons and help you understand global issues.4.Access to Resources:The internet and libraries are filled with resources in English.By writing in English,you can access a wealth of information that might not be available in your native language.5.Enhanced Communication Skills:English is a global language.Being able to write effectively in English can improve your communication skills in both personal and professional settings.6.Critical Thinking:Writing in a second language often requires more thought and analysis,as you need to consider both the content and the language structure.This can lead to better critical thinking skills.7.Personal Growth:Challenging yourself to write in a different language can be a form of personal growth.It can boost your confidence and resilience.cational Requirements:In some educational systems,writing assignments in English is a requirement,especially for subjects that are internationally recognized or taught in English.9.Preparation for Standardized Tests:Many standardized tests,such as the TOEFL or IELTS,require writing skills in English.Practicing your writing in English can help you prepare for these exams.working:In the globalized world,being able to communicate in English can help you network with people from different countries and cultures.Heres how you can approach writing your homework in English:Start Small:Begin with simple assignments or essays to build your confidence and language skills.Use Dictionaries and Thesauruses:These tools can help you find the right words and phrases to express your thoughts.Practice Regularly:Like any skill,writing in English improves with practice.Make it a habit to write a little bit every day.Get Feedback:Have a teacher,tutor,or native English speaker review your work and provide constructive feedback.Learn Grammar Rules:Understanding English grammar is crucial for writing correctly. Expand Your Vocabulary:The more words you know,the more precisely you can express your thoughts.Read Widely:Reading in English can help you understand sentence structure,idiomatic expressions,and various writing styles.Use Writing Tools:There are many online tools and apps designed to help nonnative English speakers improve their writing skills.Be Patient:Learning to write in a new language takes time.Dont get discouraged if progress seems slow.Remember,the goal is not just to complete the assignment but to improve your English writing skills in the process.。
创造机会英语作文
创造机会英语作文Opportunities are like the stars in the sky, always presentbut sometimes hard to see. They are not just waiting to be found; they are often created through determination, effort, and a proactive attitude. Here is an essay on creating opportunities in English:Creating Opportunities: A Proactive ApproachIn the vast expanse of life, opportunities are not alwayslaid out for us to stumble upon. Instead, they are often the result of our own initiative and hard work. The concept of creating opportunities is a testament to the power of humanwill and the potential for growth that lies within each of us. The Mindset for Opportunity CreationThe first step in creating opportunities is adopting theright mindset. It involves a shift from passivity to proactivity. One must believe that they have the power to influence their own destiny. This belief fuels the drive to seek out and create opportunities rather than waiting forthem to come.Education and Skill DevelopmentEducation is a powerful tool for creating opportunities. By continuously learning and developing new skills, individuals can open doors to new possibilities. Whether it's through formal education or self-directed learning, the pursuit of knowledge can lead to new career paths, innovative ideas, and personal growth.Networking and RelationshipsBuilding a strong network is another key aspect of creating opportunities. Relationships with mentors, peers, andindustry leaders can provide insights, advice, and connections that can lead to new ventures. Networking events, social gatherings, and professional associations are all platforms where opportunities can be cultivated.Taking InitiativeOpportunities are often created by those who take the initiative. This could mean starting a new project, volunteering for a challenging assignment, or proposing a new idea at work. By stepping up and taking action, individuals can create opportunities that might not have existed otherwise.Overcoming ObstaclesThe path to creating opportunities is not always smooth. There will be obstacles and setbacks along the way. However, it is through overcoming these challenges that opportunities are often born. Resilience and determination are essentialtraits for those who seek to create their own opportunities.Innovation and CreativityInnovation and creativity are at the heart of opportunity creation. By thinking outside the box and coming up with novel solutions to problems, individuals can create new opportunities for themselves and others. This could be in the form of a new product, a unique service, or a groundbreaking idea.ConclusionIn conclusion, creating opportunities is not a passive endeavor. It requires a proactive approach, a commitment to learning, and the courage to take risks. By cultivating the right mindset, developing skills, building networks, taking initiative, overcoming obstacles, and fostering innovation, individuals can create opportunities that lead to success and fulfillment.This essay highlights the importance of taking charge ofone's destiny and the various ways in which opportunities can be created. It serves as a reminder that success often comes to those who are willing to put in the effort to make it happen.。
信息系统项目管理师英语词汇汇总
140
GUI Graphical User interface
图形用户界面
141
HDSL High-speed Digital Subscriber Line
高速率数字用户线路
142
HFC Hybrid Fiber—Coaxial
混合光纤同轴电缆网
143
Highlight the model
缺陷措施
80
Definite
明确的
81
Delivery method
交付方法
82
Demo
演示
83
Dependency
依赖
84
Deployment diagram
部署图
85
Deployment
部署
86
Derived from
来源于
87
DES dataEncryptionStandard
数据加密标准
88
光纤到小区
133
Functional Manager
职能经理
134
Functionality
功能性
135
Fundamental
基本(础)的
136
Funding
基金、储备、资金
137
Funding limit reconcilliation
资金限制平衡
138
Generalization
泛化
139
Ground rules
配置管理知识库
44
Repository
/rɪˈpɑːzətɔːri/ 仓库,知识库
45
Conflict management
冲突管理
网络给学习生活带来的变化英语作文
网络给学习生活带来的变化英语作文全文共3篇示例,供读者参考篇1The Impact of the Internet on Student Life and LearningAs a student in today's world, it's hard to imagine life without the internet. From researching papers to staying connected with friends, the online world has completely transformed how we learn and live. While there are certainly downsides to this digital revolution, I've found that the benefits of the internet have been invaluable to my education and personal growth.One of the biggest game-changers has been the access to information that the internet provides. Back in my parents' day, doing research for a paper meant spending hours poring over books in the library, taking tedious notes, and hoping you could find enough sources to put together a decent argument. Nowadays, a simple Google search can instantly pull up millions of articles, journals, and expert opinions on virtually any topic imaginable. While digital literacy and source evaluation havebecome crucial skills, the breadth of knowledge at our fingertips is simply astounding.This wealth of online resources has allowed me to explore subjects more deeply and let my curiosity run wild. I vividly remember getting hooked on quantum physics videos after a fascinating lecture in my physics class, bingeing video after video until I felt like I had a surprisingly solid grasp of concepts like quantum entanglement and the uncertainty principle. Or the time I stumbled across a blog about ancient Mesopotamian culture and spent a whole weekend reading through archived posts, mesmerized by the rich history they detailed. Without the internet, these kind of self-directed "rabbit holes" of learning would be far more difficult.Online courses and educational videos have been another revolutionary development. When I struggled with a particularly tricky concept in calculus, I was able to find crystal clear video explanations from experts to rewatch and relearn at my own pace. Massive open online courses (MOOCs) from top universities around the world have allowed me to supplement my learning with deep dives into topics like philosophy, creative writing, and economics. My parents laugh at how much "extra"education I've gotten outside of my actual degree requirements, all for free thanks to the internet.On a more pragmatic level, productivity tools and organization apps have been invaluable for managing the chaos of student life. Cloud storage has saved my bacon more times than I can count when my laptop crashed or I accidentally left an assignment at home. Having a central place to store and backup all my important documents, from course notes to job applications, is incredibly freeing. Meanwhile, task managers, calendars, and checklist apps have become indispensable for keeping track of assignments, study sessions, club meetings, and all the other madness that fills up a student's schedule.And that's to say nothing of how social media and messaging apps have redefined interpersonal communication and group coordination. Study groups and project teams can now work together remotely with ease. If I get stuck on a tricky problem set, group chats make it simple to crowdsource explanations and advice in real-time. Being able to instantly reach out to friends and classmates has strengthened my sense of community and made the collaborative aspects of education far more seamless.At the same time, I'm not blind to the downsides of our digital age. The constant deluge of information and opportunities for distraction can be utterly overwhelming at times. I've lost count of how many hours I've been sucked into an endless YouTube spiral or got hypnotized by the mindless scroll of social media. There's always the temptation to take shortcuts by letting AI writing tools crank out my papers or copying other students' work readily available online. The internet's infinite capacity for procrastination is a willpower challenge I still struggle with daily.Online misinformation and bullying in social media spaces are also serious issues that have impacted me and my peers. I've seen friends fall down misinformation rabbit holes and adopt concerning beliefs and ideologies, or been blindsided by cruel comments and harassment for innocuous posts or opinions. Navigating these digital minefields while staying true to my values hasn't always been easy.Yet for all its flaws, I can't overstate how fundamentally the internet has reshaped my educational journey and personal growth over the past few years. The sheer scope of knowledge and unprecedented interconnectivity it provides has expanded my world and my mind in indescribable ways. While my parent'sgeneration laments over how "kids these days" are addicted to technology, the internet is simply an inextricable part of how we live, learn, and thrive as students in the 21st century.From revolutionizing access to education to fostering global learning communities to empowering new methods ofself-expression and advocacy, the internet has been the defining catalyst in a massive paradigm shift. Are there risks and challenges to navigate? Absolutely. But there's no putting this genie back in the bottle. As the world continues to change at a dizzying pace, developing digital literacy and cultivating healthy internet habits will be critical skills for students like me to harness this powerful resource responsibly.At the end of the day, I'm deeply grateful for the opportunities and perspectives the online world has unlocked during my time as a student thus far. For all its potential pitfalls, the internet has been an unparalleled force for expanding my intellectual horizons, enriching my personal growth, and preparing me to thrive in our hyper-connected future. As I envision my own role in shaping that future, I know the values of curiosity, discernment, and wonder for the world that the internet instilled in me will forever guide my path.篇2The Impact of the Internet on Student LifeAs a student in today's digital age, it's hard to imagine life without the internet. This revolutionary technology has transformed the way we learn, communicate, and access information, leaving an indelible mark on our academic journey. From online classes to digital research tools, the internet has revolutionized the student experience, bringing both opportunities and challenges that have reshaped the landscape of education.One of the most significant impacts of the internet on student life is the advent of online learning. With the rise ofe-learning platforms and virtual classrooms, education has transcended the traditional boundaries of physical classrooms. Online courses have opened up a world of possibilities, allowing students to pursue their academic goals from the comfort of their homes or any location with an internet connection. This flexibility has been a game-changer, particularly for those juggling work, family responsibilities, or living in remote areas. The ability to learn at our own pace and on our own schedules has made education more accessible and inclusive than ever before.Furthermore, the internet has revolutionized the way we access information and conduct research. Gone are the days of spending countless hours scouring through physical libraries and encyclopedias. With just a few clicks, we can access an abundance of digital resources, scholarly articles, and online databases. Search engines have become our virtual librarians, guiding us through the vast expanse of knowledge available on the web. This ease of access has not only streamlined our research process but has also encouraged us to explore diverse perspectives and broaden our intellectual horizons.Collaborative learning has also been transformed by the internet. Online discussion forums, virtual study groups, and video conferencing tools have facilitated seamless communication and knowledge-sharing among students from different parts of the world. We can engage in real-time discussions, exchange ideas, and collaborate on group projects without being limited by geographical boundaries. This global connectivity has enriched our learning experiences, exposing us to diverse cultural perspectives and fostering a spirit of international understanding.However, amidst these advancements, the internet has also introduced its own set of challenges. The abundance ofinformation available online has made it crucial to develop critical thinking skills and the ability to discern credible sources from misinformation. Plagiarism and academic integrity have become more significant concerns, as the temptation to copy and paste content from the internet can be overwhelming. It is our responsibility as students to uphold ethical standards and maintain academic honesty in our work.Additionally, the constant connectivity facilitated by the internet can be a double-edged sword. While it has enabled us to stay informed and engaged, it has also contributed to increased distractions and a potential for procrastination. The lure of social media, streaming platforms, and online entertainment can easily divert our attention from academic pursuits. Striking a balance between leveraging the internet's resources and maintaining focus on our studies is a skill that we must continually hone.Despite these challenges, the internet has undoubtedly transformed the student experience in profound ways. It has democratized education, breaking down barriers and providing access to knowledge like never before. Online networking and job search platforms have opened up new avenues for careerexploration and professional development, empowering us to forge our paths in an increasingly globalized job market.As we navigate this digital landscape, it is crucial to embrace the opportunities the internet presents while remaining mindful of its potential pitfalls. We must cultivate digital literacy, time management skills, and a strong sense of ethics to harness the full potential of these technological advancements. By doing so, we can truly leverage the internet as a powerful tool for personal growth, academic excellence, and global connectivity.In conclusion, the internet has ushered in a paradigm shift in the realm of education, reshaping the way we learn, research, and collaborate as students. While it has introduced new challenges, the opportunities it offers are vast and transformative. As we embark on our academic journeys, let us embrace the digital age with open minds and a commitment to lifelong learning, using the internet as a catalyst for personal and intellectual growth.篇3The Internet Revolution: How The Web Has Transformed Student LifeAs a student in today's digital age, it's hard to imagine life without the internet. From endless online resources to instant communication and entertainment, the web has completely reshaped how we learn, socialize, and experience the world around us. Looking back, it's amazing to think about how different things were just a couple decades ago before this technological revolution took hold.One of the most obvious ways the internet has impacted students is through the wealth of information and learning materials now available at our fingertips. Gone are the days of having to lug home giant textbooks and encyclopedias from the library. With a few keyword searches, we can instantly access a vast trove of knowledge on virtually any topic imaginable. Online databases, educational websites, video tutorials, you name it - the learning possibilities are truly endless.This has been an absolute game-changer for research and studying. I can't count how many times I've been working on an essay or project and been able to quickly find reliable sources, statistics, expert insights and more to incorporate into my work. The internet has made the research process so much more efficient and enriching.That said, the accessibility of information has also created some challenges. With so much content out there, it can be difficult to separate fact from fiction at times. There's a lot of misinformation and poorly vetted sources floating around online. As students, we have to be diligent about cross-checking information and ensuring we're getting our facts from reputable, trustworthy websites and databases. Our teachers have drilled this into us since we were young - not everything you read online is the gospel truth!Beyond just academics, the internet has also profoundly impacted our personal lives and how we socialize as students. I can still remember a time when making plans with friends involved calling landlines and coordination through parents. Texting, messaging apps, and social media have completely streamlined those processes. We're constantly connected and able to make spontaneous plans at a moment's notice.At the same time, this 24/7 connectivity has brought about its own set of challenges. It can be hard to strike the right balance and avoid getting consumed by our devices and feeds. We've all had professors lament students being glued to their phones and laptops rather than engaging in the classroom. It's a fine line to walk in our hyper-connected modern world.Of course, the internet has also opened up a whole new world of leisure activities and entertainment that past generations couldn't have imagined. Music, movies, TV shows, video games - they're all readily accessible through a million different streaming platforms and websites. I have to laugh when I think about how my parents talk about having to go rent VHS tapes and wait weeks for new movie releases to come to the box office or video stores. For us, the latest films, albums, and viral videos are just a couple taps away on our laptops and phones.At the same time, that unprecedented access to on-demand entertainment can also be a double-edged sword when it comes to productivity and time management. I've lost count of how many hours I've idly whiled away on social media, YouTube, or gaming sites when I should have been studying or working on assignments. It's far too easy to get sucked into that endless cycle of binge-watching or mindless scrolling. Trying to maintain focus and avoid those all-too-tempting digital distractions is an ever-present challenge for modern students.Another area where the internet has been transformative is in remote learning and education opportunities. Even before the COVID-19 pandemic thrust us all into a world of Zoom classes and virtual lectures, online courses and degree programs werebecoming increasingly popular and ubiquitous. The internet has made higher education more accessible than ever, allowing students to take classes from prestigious universities on the other side of the world without even having to leave their bedrooms.For me personally, this flexibility has been invaluable. I've been able to supplement my on-campus learning with online courses and tutorials to explore additional topics I'm passionate about. It's opened up so many doors and enabled me to tailor my education in a way that simply wouldn't have been possible in the pre-internet era when learning was much more constrained by geographical barriers and limited course catalogs.Looking to the future, it's both exciting and daunting to think about how further technological advances might continue reshaping the student experience. Immersive virtual reality classes? Artificially intelligent teaching assistants? Who knows what paradigm shifts could be on the horizon. As students, we've already had to adapt to such a whirlwind of changes in a relatively short period of time.One thing is certain though - the internet has irreversibly transformed student life, for better or worse. It's given uspowerful tools for learning, accessing information, exploring interests, and connecting with others. But it's also inundated us with distractions, shortcuts, and an overwhelming deluge of content to navigate.At the end of the day, I think it comes down to striking a balance and using the internet's capabilities in a mindful, productive way to enrich our education rather than being consumed by its endless vortex. It's a privilege and responsibility to learn in such a digitally-enabled era - one that past students could only dream about. The key is being thoughtful about how we wield these amazing resources and not letting their convenience and pulls overshadow other critical aspects of the student experience.Because at the end of the day, as revolutionary as the internet has been, it can never replicate the core value of learning within a physical classroom, engaging face-to-face with professors and peers, and developing critical interpersonal skills. It's a powerful supplemental tool, but one that should be balanced with the tangible human experiences that have been so integral to the college journey for generations. That hands-on learning, collaboration, and personal growth is what trulycatalyzes us to take the limitless knowledge at our fingertips and apply it in meaningful ways.So as we students forge ahead into this ever-advancing digital future, we must remember to keep the internet's role as an educational aid in its proper perspective. It's opened up remarkable opportunities, but it will never be a substitute for the intangible lessons, growth, and maturation that have been at the heart of the university experience since long before the web was a blip on the radar. With mindfulness, discipline, and a balanced approach, we can harness the internet's power as a tool to augment those timeless pillars of higher learning - not replace them entirely.。
毕业的单词
毕业的单词1. Graduation - 毕业2. Degree - 学位3. Diploma - 文凭4. Ceremony - 毕业典礼5. Cap and gown - 学士帽和学士服6. Classmate - 同学7. Alumnus/Alumna - 校友8. Honor - 荣誉9. Achievement - 成就10. Class - 班级11. Commencement - 开始12. Valedictorian - 毕业典礼的发言人13. Graduation party - 毕业派对14. Speech - 演讲15. Ceremony program - 毕业典礼节目16. Farewell - 告别17. High school - 高中18. College - 大学19. University - 大学20. Bachelor's degree - 学士学位21. Master's degree - 硕士学位22. Doctorate - 博士学位23. Major - 主修科目24. Minor - 辅修科目25. Graduation requirement - 毕业要求26. Transcript - 成绩单27. Graduation announcement - 毕业通知28. Job search - 求职29. Resume - 简历30. Interview - 面试31. Career - 职业32. Internship - 实习33. Networking - 联络人际关系34. Alumni association - 校友会35. Job fair - 招聘会36. Business card - 名片37. Reference - 推荐信38. Professional development - 职业发展39. Skills - 技能40. Experience - 经验41. Cover letter - 求职信42. Employment - 就业43. Salary - 薪水44. Promotion - 晋升45. Career path - 职业道路46. Work-life balance - 工作与生活的平衡47. Retirement - 退休48. Mentor - 导师49. Job offer - 工作聘请50. Workplace - 工作场所51. Success - 成功52. Challenge - 挑战53. Opportunity - 机会54. Growth - 成长55. Professionalism - 专业精神56. Dedication - 奉献57. Persistence - 毅力58. Leadership - 领导力59. Teamwork - 团队合作60. Communication - 沟通61. Problem-solving - 解决问题62. Time management - 时间管理63. Adaptability - 适应能力64. Initiative - 主动性65. Creativity - 创造力66. Research - 研究67. Presentation - 演示68. Collaboration - 合作69. Analytical - 分析的70. Organizational - 组织的71. Critical thinking - 批判性思维72. Decision making - 决策73. Independence - 独立性74. Self-motivation - 自我激励75. Problem-solving skills - 解决问题的能力76. Education - 教育77. Knowledge - 知识78. Learning - 学习79. Research - 研究80. Study - 学习81. Homework - 家庭作业82. Exams - 考试83. Semester - 学期84. Lecture - 讲座85. Library - 图书馆86. Assignment - 作业87. Group project - 小组项目88. Textbook - 教科书89. Professor - 教授90. Class schedule - 课程表91. Student loan - 学生贷款92. Tuition - 学费93. Scholarship - 奖学金94. Financial aid - 财政援助95. Campus - 校园96. Dormitory - 宿舍97. Extracurricular activities - 课外活动98. Student organization - 学生组织99. Study abroad - 留学100. Graduation requirement - 毕业要求101. Science - 科学102. Mathematics - 数学103. Literature - 文学104. History - 历史105. Art - 艺术106. Music - 音乐107. Physical education - 体育教育108. Business - 商业109. Engineering - 工程110. Medicine - 医学111. Law - 法律112. Psychology - 心理学113. English - 英语114. Foreign language - 外语115. Computer science - 计算机科学116. Economics - 经济学117. Sociology - 社会学118. Philosophy - 哲学119. Political science - 政治学120. Environmental science - 环境科学121. Alumni network - 校友网络122. Academic advisor - 学术指导员123. Campus life - 校园生活124. Graduation requirements - 毕业要求125. Student government - 学生会126. Student services - 学生服务127. Dormitory life - 宿舍生活128. Graduation rate - 毕业率129. Education system - 教育体系130. Graduation speech - 毕业演讲以上是关于毕业的700个单词。
CCNA_ENetwork_Chapter_2
ENetwork Chapter 2 - CCNA Exploration :Network(2009-05-10 11:32:50)分类:CCNA.CISCO.ANSWERS标签:itPosted by Space on Sunday, May 10, 20091 What are the key functions of encapsulation? (Choose three.)*allows modification of the original data before transmission*identifies pieces of data as part of the same communication*enables consistent network paths for communicationensures that data pieces can be directed to the correct receiving end deviceenables the reassembly of complete messagestracks delay between end devices2 Which layer encapsulates the segment into packets?physicaldata link*networktransport3 Which three statements best describe a Local Area Network (LAN)? (Choose three.) *A LAN is usually in a single geographical area.*The network is administered by a single organization.The connection between segments in the LAN is usually through a leased connection.The security and access control of the network are controlled by a service provider.*A LAN provides network services and access to applications for users within a common organization.Each end of the network is generally connected to a Telecommunication Service Provider (TSP).4 What is the proper order of the layers of the OSI model from the highest layer to the lowest layer?physical, network, application, data link, presentation, session, transportapplication, physical, session, transport, network, data link, presentationapplication, presentation, physical, session, data link, transport, network*application, presentation, session, transport, network, data link, physicalpresentation, data link, session, transport, network, physical, application5 During the encapsulation process, what occurs at the data link layer?No address is added.The logical address is added.*The physical address is added.The process port number is added.6 Select the statements that are correct concerning network protocols. (Choose three.)define the structure of layer specific PDU's*dictate how to accomplish layer functions*outline the functions necessary for communications between layerslimit hardware compatibility*require layer dependent encapsulationseliminate standardization among vendors7Refer to the exhibit. Which three labels correctly identify the network types for the network segments that are shown? (Choose three.)Network A -- WAN*Network B -- WAN*Network C -- LANNetwork B -- MANNetwork C -- WAN*Network A -- LAN8 Which statements correctly identify the role of intermediary devices in the network? (Choose three.)*determine pathways for datainitiate data communications*retime and retransmit data signalsoriginate the flow of data*manage data flowsfinal termination point for data flow9 Which two layers of the OSI model have the same functions as the TCP/IP model Network Access Layer? (Choose two.)* NetworkTransport* PhysicalData LinkSession10 What can be identified by examining the network layer header?the destination device on the local media* the path to use to reach the destination hostthe bits that will be transferred over the mediathe source application or process creating the data11Refer to the exhibit. "Cell A" at IP address 10.0.0.34 has established an IP session with "IP Phone 1" at IP address 172.16.1.103. Based upon the graphic, which device type best describes the function of wireless device "Cell A?"the destination device* an end devicean intermediate devicea media device12Refer to the exhibit. Which set of devices contains only end devices?* A, C, DB, E, G, HC, D, G, H, I, JD, E, F, H, I, JE, F, H, I, J13 What is the purpose of the TCP/IP Network Access layer?* path determination and packet switchingdata representation, encoding, and controlreliability, flow control, and error detectiondetailing the components that make up the physical link and how to access it the division of segments into packets14 What device is considered an intermediary device?file serverIP phonelaptopprinter* switch15 What is a PDU?corruption of a frame during transmissiondata reassembled at the destinationretransmitted packets due to lost communication* a layer specific encapsulation16 What is the primary purpose of Layer 4 port assignment?to identify devices on the local mediato identify the hops between source and destinationto identify to the intermediary devices the best path through the networkto identify the source and destination end devices that are communicating* to identify the processes or services that are communicating within the end devices17 What is a primary function of the trailer information added by the data link layer encapsulation?* supports error detectionensures ordered arrival of dataprovides delivery to correct destinationidentifies the devices on the local networkassists intermediary devices with processing and path selection18Refer to the exhibit. Which term correctly identifies the device type that is included in the green area?sourceendtransfer* intermediary19Refer to the exhibit. Which networking term describes the data interleaving process represented in the graphic?pipingPDUstreaming* multiplexingencapsulation20 Which characteristic correctly refers to end devices in a network?manage data flowsoriginate data flowretime and retransmit data signalsdetermine pathways for data21Refer to the exhibit. What type of network is shown?WANMAN* LANWLAN。
boson netsim
Boson NetsimIntroductionBoson Netsim is a powerful network simulation software that allows users to create virtual network environments to test and troubleshoot network configurations. With its user-friendly interface and extensive set of features, Boson Netsim is widely used by network professionals to enhance their networking skills and improve network performance.Key Features1. Simulation of Network DevicesBoson Netsim provides a wide range of virtual network devices that can be configured to create realistic network environments. Users can simulate routers, switches, and other network devices to replicate their actual behavior and performance. This allows users to test different configurations and protocols without the need for physical hardware.2. Network Topology DesignUsers can easily create and design complex network topologies using Boson Netsim. The software offers a drag-and-drop interface that allows users to add and connect network devices. Users can also customize the properties and settings of each device, such as IP addresses, routing protocols, and security settings.3. Virtual Lab EnvironmentBoson Netsim provides a virtual lab environment where users can simulate real-world networking scenarios. Users can create multiple virtual networks and interconnect them to test the behavior of the network under different conditions. This allows users to experiment with different configurations and troubleshoot network issues without any risk to the production network.4. Network Traffic AnalysisBoson Netsim offers network traffic analysis capabilities, allowing users to monitor and analyze network traffic in real-time. Users can capture and analyze network packets, identify bottlenecks and performance issues, and optimize network performance. This feature helps users gain a better understanding of how their network behaves and how to improve its efficiency.5. Hands-on LearningBoson Netsim provides an interactive learning environment for users to practice and improve their networking skills. Users can perform hands-on exercises and lab activities, such as configuring routing protocols, implementing security features, and troubleshooting network issues. This helps users gain practical experience and confidence in managing real-world network environments.6. Collaboration and SharingBoson Netsim allows users to collaborate and share their network simulations with others. Users can export their network topologies and configurations to share with colleagues or students. This promotes knowledge sharing and enables collaboration in network design and troubleshooting.System RequirementsTo install and run Boson Netsim, your computer must meet the following minimum system requirements:•Operating System: Windows 7 or later•Processor: Intel Core i5 or equivalent•RAM: 8 GB or more•Hard Disk Space: 10 GB or more•Internet Connection: Required for software updates and license activationConclusionBoson Netsim is a powerful and versatile network simulation software that provides network professionals with the tools they need to enhance their networking skills and improve network performance. With its simulation capabilities, network topology design, virtual lab environment, and collaboration features, Boson Netsim is a valuable tool fornetwork engineers, administrators, and students. Whether you are learning networking concepts or preparing for network certifications, Boson Netsim can help you gain hands-on experience and deepen your understanding of network technologies.。
计算机专业英语-计算机网络基础-Chapter 3 Foundation of Computer Network(计算机网络基础)
on, it can access data from the File Server, and 需文件后就可以在工作站上运行。
operates on the workstation with the documents 网卡(network interface card: NIC)
needed.
是服务器与工作站之间的接口。
BNC joint, terminator, and cables etc.
服务器( file server )是整个网络的
File Server is the soul of a whole network, so it 灵魂,所以它必须是最好的。网络上所
must be the best. All the input and output of data 有数据的进出都须通过服务器来控制。
configurations or Network are star, bus, ring, 星形、总线形、环形和树形。
and tree.
星形网络
Star Network
星形网络由一台中央处理器、
A star network contains a central unit, a 多台个人计算机、终端或外围设
wonderful business tools for producing data, 算机在处理数据、电子表格、图形以
spreadsheets, graphics, and other types of 及其他类型的信息方面是理想的办公
information, but do not allow you to quickly 设备,但却不支持快速(用户输出的)
Ø 教学提示:
到学校机房或有关网络公司参观,感受本章内容, 以学到更多的专业知识和词汇。
大数据理论考试(习题卷12)
大数据理论考试(习题卷12)说明:答案和解析在试卷最后第1部分:单项选择题,共64题,每题只有一个正确答案,多选或少选均不得分。
1.[单选题]()试图学得一个属性的线性组合来进行预测的函数。
A)决策树B)贝叶斯分类器C)神经网络D)线性模2.[单选题]随机试验所有可能出现的结果,称为()A)基本事件B)样本C)全部事件D)样本空间3.[单选题]DWS实例中,下列哪项不是主备配置的:A)CMSB)GTMC)OMSD)coordinato4.[单选题]数据科学家可能会同时使用多个算法(模型)进行预测,并且最后把这些算法的结果集成起来进行最后的预测(集成学习),以下对集成学习说法正确的是()。
A)单个模型之间具有高相关性B)单个模型之间具有低相关性C)在集成学习中使用“平均权重”而不是“投票”会比较好D)单个模型都是用的一个算法5.[单选题]下面算法属于局部处理的是()。
A)灰度线性变换B)二值化C)傅里叶变换D)中值滤6.[单选题]中文同义词替换时,常用到Word2Vec,以下说法错误的是()。
A)Word2Vec基于概率统计B)Word2Vec结果符合当前预料环境C)Word2Vec得到的都是语义上的同义词D)Word2Vec受限于训练语料的数量和质7.[单选题]一位母亲记录了儿子3~9岁的身高,由此建立的身高与年龄的回归直线方程为y=7.19x+73.93,据此可以预测这个孩子10岁时的身高,则正确的叙述是()。
A)身高一定是145.83cmB)身高一定超过146.00cmC)身高一定高于145.00cmD)身高在145.83cm左右8.[单选题]有关数据仓库的开发特点,不正确的描述是()。
A)数据仓库开发要从数据出发;B)数据仓库使用的需求在开发出去就要明确;C)数据仓库的开发是一个不断循环的过程,是启发式的开发;D)在数据仓库环境中,并不存在操作型环境中所固定的和较确切的处理流,数据仓库中数据分析和处理更灵活,且没有固定的模式9.[单选题]由于不同类别的关键词对排序的贡献不同,检索算法一般把查询关键词分为几类,以下哪一类不属于此关键词类型的是()。
Pearson BTEC International Level 2 计算机网络简介指导手册说明书
Unit 4: Introduction to Computer NetworkingDelivery guidanceApproaching the unitThis unit explores how computer networks are used to meet the needs of businesses and individuals. Learners will explore how they are used in real-world, vocational scenarios and how to analyse user requirements to design, create, and test a network.In the first learning aim learners will explore existing networks and their components to gain an understanding of how they are used to meet a range of needs. They will explore the potential security risks when using a network, and ways that these risks can be reduced. In the second and third learning aims learners will study how to design, implement, and test a network to meet identified needs in response to a client brief.Learners should understand the importance of computer networks, and that without them, many of the things we do both personally and professionally, such as surfing the web, watching a film on a streaming service, or calling and messaging friends and relatives, would not be possible. Delivering the learning aimsLearning aim A: This provides core knowledge about the use of networks, including individual components that form a network, and how networks meet the needs of organisations and users. This unit is focused on how networks are used in the real world to meet a range of needs. It would be beneficial to learners to provide opportunities to consider the use of networks in a range of different contexts. The use of high-quality case studies or visits and guest speakers would all provide opportunities for engaging learners with the content, and would allow learners to consider a range of different uses of networks in order to develop a wider understanding of their uses and components, as well as security implications.Given the widespread use of networks in our everyday lives, the unit also provides opportunities for learners to draw on their own experiences when taking part in class discussions.Learning aim B: Delivery should focus on practical and engaging tasks and, where possible, learners should be provided with a scenario or brief for which they will design a network. This will help them focus on the aims of the organisation and the activities that must be facilitated to meet those aims, which will better prepare them for the requirements of the assignment. Producing high-quality design documentation for a network requires a sound understanding of both the hardware and software components that form the network. Where needed, recap knowledge covered, in learning aim A. It may also be beneficial to overlap delivery of learning aims B and C, so that learners can produce a design, and then apply that design to the practical network building activities in learning aim C.Learning aims C: This learning aim focuses on the development of practical computer network building skills. Learners should be provided with opportunities to connect a range of physical devices and components to form networks for different purposes. They should explore how to test a network and, where required, identify and fix any issues.It would be beneficial for learners to use actual, physical components to build networks when completing tasks. However, for some scenarios that use larger business contexts, this may not be plausible. In these situations, learners can make use of simulated network software such as Cisco Packet Tracer.Assessment modelAssessment guidanceThis unit is internally assessed. There is a maximum number of two summative assignments for this unit. Tutors should refer to the assessment guidance in the specification for specific detail, particularly in relation to the requirements for the Pass, Merit and Distinction grades. Learning aim A is assessed by a written report or presentation. In their report, learners must consider how two different networks are used, in different contexts, to meet organisation and user needs. They should explore the potential security threats to the networks and how these threats are mitigated. Learners should consider the good, and not so good, features of the network and consider how effective the network is in meeting the aims and objectives of the organisation and intended users.For learning aim B, learners will respond to a given scenario to design a network solution. Learners will be expected to produce an initial user requirements specification, detailed network designs (including a network diagram), and a test plan for the network. These design documents should be sufficiently clear and detailed to enable a third party to use them to create the intended network.For learning aim C,learners will produce and test their planned network to meet the given brief. They should demonstrate the ability to connect and configure components to form a networkensuring that the devices and software are correctly configured to ensure that the network is functional and secure.Learners should perform systematic testing, applying their test plan, to ensure any potential issues are identified and rectified.Learners will produce a supporting document which outlines the approaches that they took when designing and building the network, and which justifies any choices made in relation to the design and build of the network (e.g. the topology used, chosen devices, network settings, user permissions etc.). Any justifications made should be directly related to the requirements of the scenario.Getting startedThis gives you a starting place for one way of delivering the unit, based around the recommended assessment approach in the specification.Details of links to other BTEC units and qualifications, and to other relevant units/qualificationsThis unit links to:•Unit 1: Using IT to Support Information and Communication in Organisations•Unit 6: Introduction to Digital Graphics and Animation•Unit 7: Introduction to Website Development•International GCSE/core curriculum in Information Technology.ResourcesIn addition to the resources listed below, publishers are likely to produce Pearson-endorsed textbooks that support this unit of the BTEC International Level 2 Qualifications in Information Technology. Check the Pearson website at: (/endorsed-resources) for more information as titles achieve endorsement.VideosWhat is OSI Model? - YouTube Provides an introduction and overview to theOSI network model[HOWTO] Test My Network Speed?! [iPerf & JPerf] - YouTube Tutorial on how to use iperf tools to test the speed of data over a networkNetwork Troubleshooting using the IPCONFIG Command - YouTube Tutorial on how to use command tools to test a networkNetwork Troubleshooting using PING, TRACERT, IPCONFIG, NSLOOKUP COMMANDS - YouTube Tutorial on how to use command tools to test a networkPING Command - Troubleshooting - YouTube Tutorial on ping command tool WebsitesEthernet Standards - IEEE 802.3 »Electronics Notes ()An overview of ethernet standardsLesson 6 Network protocols ()Information about a range of protocols used to control data over a networkLesson 7 The IP suite and packet switching ()An introduction to, and overview of, data packets and packet switchingThe 15 biggest data breaches of the 21st century | CSO Online A collection of examples of prominent data breachesPearson is not responsible for the content of any external internet sites. It is essential for teachers to preview each website before using it in class so as to ensure that the URL is still accurate, relevant, and appropriate. We suggest that teachers bookmark useful websites and consider enabling learners to access them through the school/college intranet.。
Assignment2题库(1)chap2
Assignment 2题库True/FalseIndicate whether the statement is true or false.__T__ works of computers and the Internet that connects them to each other form the basic technological structure that underlies virtually all electronic commerce.__F__ 2. The USENET was the earliest of the networks that eventually combined to become what we now call the Internet.__T__ 3. E-mail was born in 1972 when a researcher wrote a program that could send and receive messages over the Defense Department network.__T__ 4. In 1989, the NSF permitted two commercial e-mail services, MCI Mail and CompuServe, to establish limited connections to the Internet for the sole purpose of exchanging e-mail transmissions with users of the Internet.__T__ 5. A network of computers that are located close together—for example, in the same building—is called a local area network.__F__ 6. The Internet provides a high degree of security in its basic structure.__T__ 7. Although fax, telephone, e-mail, and overnight express carriers have been the main communications tools for business for many years, extranets can replace many of them at a lower cost.__F__ 8. An intranet extends beyond the organization that created it.__F__ 9. The “virtual” part of VPN means that the connectio n seems to be a temporary, internal network connection, but the connection is actually permanent.__T__ 10. VPN software must be installed on the computers at both ends of the transmission.__F__ 11. The technologies used (public networks, private networks, or VPNs) are independent of organizational boundaries.__T__ 12. IP addresses appear as five numbers separated by periods.__F__ 13. SMTP is a common protocol used for sending and retrieving e-mail.__T__ 14. IMAP is a newer e-mail protocol that performs the same basic functions as POP, but includes additional features.__T__ 15. The POP protocol provides support for MIME.__T__ 16. At a technological level, the Web is nothing more than software that runs on computers that are connected to the Internet.__T__ 17. The set of rules for delivering Web page files over the Internet is in a protocol called the Hypertext Transfer Protocol (HTTP).__F__ 18. An HTML document is similar to a word-processing document in that it specifies how a particular text element will appear.__T__ 19. Domain names are sets of words that are assigned to specific IP addresses.__F__ 20. The Internet Corporation for Actualized Names and Nuances has the responsibility of managing domain names and coordinating them with the IP address registrars.__F__ 21. HTML is a meta language because users can create their own markup elements that extend the usefulness of XML.__T__ 22. SGML offers a system of marking up documents that is independent of any software application.__T__ 23. The term cascading is used because designers can apply many style sheets to the same Web page, one on top of the other.__T__ 24. The higher the bandwidth, the faster data files travel and the faster Web pages appear on your screen.__T__ 25. Asymmetric connections provide the same bandwidth for each direction.Multiple ChoiceIdentify the choice that best completes the statement or answers the question.__c__ 1. The combination of telephone lines and the closed switches that connect them to each other is called a ____.N c. circuitb. WAN d. pathway__d__ 2. On a packet-switched network, files and e-mail messages are broken down into small pieces, called ____.a.Messages c. circuitsb. pieces d. packets__c__ 3. When packets leave a network to travel on the Internet, they must be translated intoa standard format. ____ usually perform this translation function.a.Switches c. Routersb. Bridges d. Routing algorithms__d__ 4. Routers and the telecommunications lines connecting them are collectively referred to as ____.a.backbone routers c. an asynchronous backboneb. Internet routers d. the Internet backbone__c__ 5. A(n) ____ does not extend beyond the boundaries of a particular organization.a.Internet c. intranetb. extranet d. ARPANET__a__ 6. A(n) ____ is like a separate, covered commuter lane on a highway (the Internet) in which passengers are protected from being seen by the vehicles traveling in the other lanes.a.VPN c. extranetb. IP wrapper d. IAP__c__ 7. A(n) ____ is a connection that uses public networks and their protocols to send data in a way that protects the data as well as a private network would, but at a lower cost.a.public network c. virtual private networkb. virtual public network d. private network__c__ 8. A ____ is a collection of rules for formatting, ordering, and error checking data sent across a network.a.routing algorithm c. protocolb. backbone router d. packet__c__ 9. ____ determine how the sending device indicates that it has finished sending a message, and how the receiving device indicates that it has received the message.a.Routers c. Protocolsb. Bridges d. Adapters__a__ 10. In networking applications, an 8-bit number is often called a(n) ____.a.octet c. piconetb. netbit d. bit__a__ 11. Network engineers have devised a number of stopgap techniques to stretch the supply of IP addresses. One of the most popular techniques is ____.a.subnetting c. sub-blockingb. subletting d. piconetting__b__ 12. A computer called a ____ converts private IP addresses into normal IP address when it forwards packets from those computers to the Internet.a.routing algorithm device c. subnet translation deviceb. network address translation device d. private network device__a__ 13. The ____ numbering system uses 16 characters.a.hexadecimal c. Binaryb. decimal d. ASCII__c__ 14. IPv6 uses a ___ number for addresses.a. 32-bit c. 128-bitb. 56-bit d. 256-bit__c__ 15. The purpose of a(n) ____ is to respond to requests for Web pages from Web clients.a. URL c. Web serverb. e-mail d. top-level domain__a__ 16. ____ specifies the format of a mail message and describes how mail is to be administered on the e-mail server and transmitted on the Internet.a.SMTP c. MIMEb. TCP/IP d. POP__a__ 17. A newer e-mail protocol that performs the same basic functions as POP, but includes additional features, is known as ____.a.IMAP c. POPIb. SMTP d. IPOP__c__ 18. ____ lets users create and manipulate e-mail folders and individual e-mail messages while the messages are still on the e-mail server.a.POP c. IMAPb. SMTP d. MIME__b__ 19. ____ is a set of rules for handling binary files, such as word-processing documents, spreadsheets, photos, or sound clips, that are attached to e-mail messages.a.IMAP c. SMTPb. MIME d. POP__c__ 20. The combination of the protocol name and the domain name is called the ____.a.URT c. URLb. URO d. HTTP__d__ 21. HTML was developed by ____.a.ARPANET c. Ted Nelsonb. NSF d. Tim Berners-Lee__a__ 22. ____ was the first Web browser that became widely available for personalcomputers.a. Mosaic c. Internet Explorerb. Netscape d. CompuServe__a__ 23. ____ are sets of words that are assigned to specific IP addresses.a.Domain names c. Octetsb. URLs d. Piconets__b__ 24. The early versions of ____ let Web page designers create text-based electronic documents with headings, title bar titles, bullets, lines, and ordered lists.a.HTTP c. SGMLb. HTML d. XML__b__ 25. In HTML, hyperlinks are created using the HTML ____ tag.a.head c. titleb. anchor d. olEssay1. As an individual packet travels from one network to another, the computers through which the packet travels determine the best route for getting the packet to its destination. Describe this process.Ans: The computers that decide how to best forward each packet are called routing computers, router computers, routers, gateway computers (because they act as the gateway from a LAN or WAN to the Internet) or border routers (because they are located at the border between the organization and the Internet.) The programs on the routers that determine the best path contain rules called routing algorithms. The programs apply these algorithms to information they have stored in routing tables or configuration tables. This information includes lists of connections that lead to particular groups of other routers, rules that specify which connection to use first, and rules for handling instances of heavy packet traffic and network congestion.2. What is the difference between a public network and a private network?Ans: The open architecture philosophy developed for the evolving ARPANET, which later became the core of the Internet, included the use of a common protocol for all computers connected to the Internet and four key rules for message handling:①Independent networks should not require any internal changes to be connected to the network,②Packets that do not arrive at their destinations must be retransmitted from their source network,③Router computers act as receive-and-forward devices; they do not retain information about the packets that they handle, and④No global control exists over the network.3. Identify the four key rules for message handling.Ans: The TCP controls the disassembly of a message or a file into packets before it is transmitted over the Internet, and it controls the reassembly of those packets into their original formats when they reach their destinations. The IP specifies the addressing details for each packet, labeling each with the packet’s origination and destination addresses.4.What is the difference between TCP and IP?Ans: The TCP controls the disassembly of a message or a file into packets before it is transmitted over the Internet, and it controls the reassembly of those packets into their original formats when they reach their destinations. The IP specifies the addressing details for each packet, labeling each with the packet’s origination and destination addresses.5. What are the advantages of Bluetooth technology?Ans: One major advantage of Bluetooth technology is that it consumes very little power, which is an important consideration for many devices. Another advantage is that Bluetooth devices can discover each other and exchange information automatically. For example, a person using a laptop computer in a temporary office can print to a local Bluetooth-enabled printer without logging in to the network or installing software in either device. The printer and laptop computer electronically recognize each other as Bluetooth devices and immediately can begin exchanging information.。
项目管理(全英文)试题 - 有翻译
一、名词解释(5*2=10)PMI, Project Management Institute, 美国项目管理学会PMP, Project Management Professional, 项目管理专业人员认证PMBOK, Project Management Body of Knowledge, 项目管理知识体系PLC, project life cycle, 项目生命周期RFP, Request for proposal, 需求建议书WBS, Work Breakdown Structure, 工作分解结构CPM, Critical path method, 关键路径法PERT, Project Evaluation and Review Technique, 计划评审技术AOA, Activity-On-Arrow, 双代号网络图法AON, Activity-on-node, 单代号网络图CPI, Cost Performance Index,成本绩效指数 (挣值(EV)/实际成本(AC))RAM, Responsibility Assignment Matrix,职责分配矩阵P&L, Profit and loss损益VAT,value-added tax, 加值税、增值税QA, Quality Assurance, 质量保障二、填空题(5*2=10)。
1. A project is an endeavour to accomplish a specific objective through a unique set of interrelated tasks and the effective utilization of resources. 1.项目是努力完成一个特定的目标,通过一套独特的相互关联的任务和资源的有效利用。
2. A project manager is responsible for planning the work and then work the plan.项目经理负责规划工作,然后工作计划。
Edexcel BTEC Level 2和3信息技术系统和原则通信技术单元指南说明书
Unit 29: Communication TechnologiesUnit code: F/601/7264QCF Level 3: BTEC SpecialistCredit value: 10Guided learning hours: 60Aim and purposeThe aim of this unit is to ensure learners understand the communication principles of computer networks, know the elements of data communications systems and develop the skills to implement network communications.Unit introductionNew and developing communication technologies are used within the business world to maximise productivity and access information, whether an employee is working an office or travelling the world.This unit focuses on communication technologies, examining their use within social and business communities. Learners will explore the devices and communication technologies they use on a daily basis and gain an understanding of systems, including mobile internet. Learners will look at network topologies and services, connection software and access methods amongst other areas. They will investigate the OSI and TCP/IP models. Communications technology includes a large range of devices, which are used in the business and social communities. Devices include many of the next generation wireless devices, games consoles and newer generations of mobile phones with voice and video streaming. This unit explores these devices along with their transmission methods and the underlying protocols that enable connectivity and transmission of data including signal theory and data elements. Learners will appreciate why particular transmission methods are chosen for particular situations and be able to compare the effectiveness of the different methods.Finally, learners will be able to use their knowledge and understanding to directly connect communication devices between users.This unit could be delivered as part of a system support and networking focus including other units with networking content. Although largely theoretical, the emphasis in this unit should be on practical activity to learners to understand how modern IT can be used to enhance the commercial and personal environment. This unit has links directly to other network units and the vendor units.Learning outcomes and assessment criteriaIn order to pass this unit, the evidence that the learner presents for assessment needs to demonstrate that they can meet all the learning outcomes for the unit. The assessment criteria determine the standard required to achieve the unit.On completion of this unit a learner should:Learning outcomes Assessment criteria1 Understand thecommunication principlesof computer networks 1.1 explain how networks communicate1.2 identify communication protocols and models2 Know the main elementsof data communicationssystems 2.1 identify different types of communication devices 2.2 describe what data elements are and why theyare important2.3 describe the principles of signal theory2.4 describe different transmission methods used3 Be able to implementdifferent forms of networkcommunications 3.1 create direct network communication betweentwo users3.2 set up interconnection devices for directcommunicationUnit content1 Understand the communication principles of computer networksComputer networks: types eg LAN, WAN, wireless; network topologies eg star; mesh;bus; tree (or hierarchical); ring; network services eg packet switched, ISDN,multiplexed, ATM, WAP, broadband; network software eg network operating system;network connection software; access methods eg CSMA/CD, CSMA/CA, token passing Network components: servers; workstation; network cards eg Ethernet, wireless, token ringInterconnection devices: eg switches, routers, bridges, wireless access points, mobile base stationsModels: eg open system interconnection (OSI) model, TCP/IP modelProtocols: eg Bluetooth®, Wifi, IrDa, cellular radio, GSM/UMTS, WAP, WML, 802.11 standards, TCP/IP, wireless security protocols2 Know the main elements of data communications systemsMain elements: communication devices; data elements; electronic communication methods; transmission media and methodsCommunication devices: wired devices eg data terminal equipment (DTE), data circuit terminating equipment (DCE); wireless devices eg 3G, GPRS, mobile phone, laptop, netbookSignal theory: digital signalling methods; representing data electronically (bits, bytes, packet structures); synchronous transmission; asynchronous transmission; error detection; error correction; bandwidth limitation; bandwidth noise; channel types eg telephone, high frequency (HF) radio, microwave, satellite; other issues egbandwidth, data compressionData elements: checksum eg cyclic redundancy check (CRC); encapsulation egframes, packets, datagrams; addresses; sequence numbersElectronic communication: methods eg simplex, duplex, half-duplex communication, parallel, universal serial bus, serial, infra red, Bluetooth, WiFi, 3GTransmission: methods eg coaxial, optical fibre, unshielded twisted pair (UTP),shielded twisted pair (STP), infrared, radio, microwave, satellite3 Be able to implement different forms of network communicationsInternet communication: terminology eg HTTP, HTTPS, FTP, SMTP; uniform resource locator; worldwide web; other eg blogs, wikis, video conferencing, vlogs, socialnetworkingSystem requirements: wired or mobile systems; communication services eg email, video, internet, software, configurationDirect communication: eg instant messaging, video communication, email, webphone, social networking, web conferencing, desktop sharingInterconnection devices: eg switches, routers, bridges, wireless access points, mobile base stationsEssential guidance for tutorsDeliveryThis unit could be delivered as part of a system support and networking focus which includes other units with networking content. The emphasis is on practical activity to enable learners the to understand how modern IT can be used to enhance the commercial and personal environment. This unit links directly to other network units and the practical element in 3.1 and 3.2 could link with the vendor units.Delivery of the theoretical aspects should focus on the most up-to-date technology available, including all the latest developments in mobile communications such as third generation technology.The practical aspects of the unit that are practical should be opportunities to use the main technologies listed in the unit content, such as 3G hardware and mobile computing technology, for example, a wireless PDA. Ideally, the tutor should try to secure as many of these technologies as is feasible. For those that the centre cannot provide, it is recommended that the tutor tries and sources outside examples of this form of technology to demonstrate to learners.As an addition to the practical element, it may be useful for learners to have some input from an IT communications technology specialist, who can give an insight into career progression within this sector, as well as providing up to the minute technical knowledge that learners can draw on.Outline learning planThe outline learning plan has been included in this unit as guidance and can be used in conjunction with the programme of suggested assignments. The outline learning plan demonstrates one way in planning the delivery and assessment of this unit.Topic and suggested assignments/activities and/assessmentIntroduction to the unitThe main elements of data communications systems:•whole-class exercise – tutor presentation on communication devices•directed research – using tutor-provided materials on signal theory•whole-class exercise – tutor presentation on data elements•whole-class exercise – tutor presentation on methods of electronic communication, followed by whole class•practical•whole-class exercise – tutor presentation on transmission media and methods, followed by whole class•practical.Communication principles of computer networks:•individual exercise – use tutor-provided materials to understand the features of networks•whole-class exercise – tutor demonstrates network components to class•whole-class exercise – tutor demonstrates interconnection devices to class. Assignment 1 – From End to EndTransmission protocols and models:•whole-class exercise – tutor presentation on the open system interconnection (OSI) model and the TCP/IP•model, followed by a practical•individual exercise – learn about different electronic communication protocols from tutor-provided materials.Assignment 2 – A Bespoke SolutionImplementing different forms of internet communications:•whole-class exercise – tutor presentation on internet communication terminology, followed by practical tasks•whole-class exercise – tutor presentation on system requirements, followed by practical tasks•whole-class exercise – tutor presentation on direct communication methods, followed by practical tasks.Assignment 3 – LAN ManagerAssessmentThis unit can be assessed using three assignments as outlined in the Programme of suggested assignment table. However, there are other valid ways of assessment and the programme of suggested assignment is only a suggestion.Suggested Assignment 1 – From End to EndEvidence for this assignment could be in the form of a series of leaflets, posters or web pages which are suitably illustrated and annotated.1.1 requires learners to explain how networks communicate. This can be evidenced diagrammatically with annotations and notes, or it could be part of a presentation.For 1.2, communication protocols and models should be described using graphics where appropriate.For 2.1, learners must identify different types of communication devices, addressing the prescriptive elements of the unit content.For 2.2, learners must describe what data elements are and why they are important. Learners need to describe the different elements, and their importance, in their own words.Suggested Assignment 2 – A Bespoke SolutionA presentation is the suggested evidence format for this assignment.2.3 requires learners to describe the principles of signal theory as outlined in the unit. 2.4 is about transmission methods.Suggested Assignment 3 – LAN Manager3.1 is practical, and each learner must create a direct communication link between two networked devices. This could be a short video, observation evidence, or a written summary.3.2 is also practical. In this case, learners must create interconnection devices for direct communication. As with 3.1, evidence could be a short video, observation evidence, or a written summary.Programme of suggested assignmentsThe table below shows a programme of suggested assignments that cover the assessment criteria in the assessment and grading grid. This is for guidance and it is recommended that centres either write their own assignments or adapt any Edexcel assignments to meet local needs and resources.Criteria covered Assignment title Scenario Assessment method1.1-2.2 From End toEnd An ISP hascommissioned you towrite publicity materialsexplaining some of thebasics of ITcommunication.Leaflets or poster.2.3, 2.4 A BespokeSolution A client wishes to knowmore abouttransmission signals.Produce a presentationto describe theprinciples and methodsused.Presentation.3.1, 3.2 LAN Manager The ISP has asked youto create a system thatwill enable two users tomake directcommunication. Observation records. Witness statement. Notes.Links to National Occupational Standards, other BTEC units, other BTEC qualifications and other relevant units and qualificationsThis unit forms part of the BTEC in IT sector suite. This unit has particular links with: Level 1 Level 2 Level 3Systems ArchitectureArchitectureSystemsSetting up an IT Network Networking PrinciplesNetworking Principles Computer NetworksAn Introduction toCommunicationTechnologiesThis unit maps to some of the underpinning knowledge from the following areas of competence in the Level 3 National Occupational Standards for IT (ProCom):4.7 Systems Design5.1 Systems Development5.3 IT/Technology Solution Testing.Essential resourcesLearners will need access to practical resources and suitable technology; they can also use simulators or multimedia tools to gain prior experience before handling live resources.Employer engagement and vocational contextsVisits to a local ISP or using the centre’s network would provide a suitable vocational context.Indicative reading for learnersTextbooksDodd AZ – The Essential Guide to Telecommunications, 4th edition (Prentice Hall, 2005) ISBN-10 0131487256, ISBN-13 978-0131487253Hallberg B – Networking: A Beginner’s Guide, 5th Edition (Osborne/McGraw-Hill US, 2009) ISBN-10 0071633553, ISBN-13 978-0071633550Lowe D – Networking All-in-One Desk Reference for Dummies, 3rd Edition (John Wiley & Sons, 2008) ISBN-10 0470179155, ISBN-13 978-0470179154Schiller J – Mobile communications, 2nd Edition (Addison Wesley, 2003) ISBN-10 0321123816, ISBN-13 978-0321123817WebsitesFunctional Skills — Level 2Skill When learners are …ICT – Using ICTcreating network communicationsSelect, interact with and use ICTsystems safely and securely fora complex task in non-routineand unfamiliar contextsICT – Developing, presenting andcommunicating informationsetting up communication devicesUse communications software tomeet requirements of a complextaskexplaining protocols and transmission methods. Combine and presentinformation in ways that are fitfor purpose and audience。
把爱好变成事业作文英语
把爱好变成事业作文英语Title: Turning Passion into Profession。
Turning one's hobby into a career is a dream shared by many. It's a journey of passion, determination, and often, a leap of faith. In this essay, we delve into the process of transforming a hobby into a profession, exploring the challenges, rewards, and personal growth that accompany such a transition.To begin with, identifying one's passion is crucial. For me, it was photography. Capturing moments, emotions, and stories through the lens ignited a fire within me. It wasn't merely a pastime; it was an obsession, a calling. Recognizing this passion was the first step towards turning it into a career.Next comes skill development. While passion fuels the drive, honing one's craft is essential for success. I immersed myself in photography courses, workshops, andcountless hours of practice. Each click of the shutter taught me something new, refining my technique and artistic vision.Turning a hobby into a career also demands strategic planning. It's not enough to be skilled; one must also understand the market, target audience, and industry trends.I researched different photography niches, analyzed competitors, and crafted a unique selling proposition. This groundwork laid the foundation for my future endeavors.Networking plays a pivotal role in transitioning from hobbyist to professional. Building relationships withfellow photographers, clients, and industry professionals opened doors to opportunities I never imagined. Collaborations, referrals, and word-of-mouth recommendations became invaluable assets in growing my business.However, the journey from passion to profession is not without its challenges. Doubt, fear, and uncertainty often loom large. Can I make a living doing what I love? Will Isucceed or fail? These questions plagued my mind, but I refused to let them deter me. With perseverance and resilience, I pushed through setbacks and obstacles, emerging stronger and more determined than ever.One of the most rewarding aspects of turning my hobby into a career is the sense of fulfillment it brings. Waking up every day knowing that I get to do what I love is a privilege I don't take for granted. Whether it's capturing a couple's special moments, documenting a community event, or pursuing personal projects, each assignment fills me with joy and purpose.Moreover, the journey of transforming my passion into a profession has been a catalyst for personal growth. It's taught me the value of discipline, time management, and continuous learning. It's challenged me to step out of my comfort zone, embrace uncertainty, and embrace failure as a stepping stone to success.In conclusion, turning a hobby into a career is a deeply rewarding but challenging endeavor. It requirespassion, skill, strategic planning, networking, and above all, unwavering determination. Despite the obstacles along the way, the journey is filled with moments of fulfillment, growth, and self-discovery. And as I continue on this path, I'm grateful for the opportunity to pursue my passion and make a living doing what I love.。
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BTEC CenterProgram: HND in Computing (General)Unit Title: Networking ConceptsUnit No: 5Assignment Title: Manage the Network ResourceAssignment No.: 2Issue Date:Submission Deadline:Assessor/Tutor:Internal Verifier:Student:Student’s Reg. No:NOTES TO STUDENTS●Check carefully the submission date and the instructions given with theassignment. Late assignments will not be accepted.●Ensure that you give yourself enough time to complete the assignment by the duedate.●Do not leave things such as printing to the last minute – excuses of this naturewill not be accepted for failure to hand-in the work on time.●You must take responsibility for managing your own time effectively.●If you are unable to hand in your assignment on time and have valid reasons suchas illness, you may apply (in writing) for an extension.●When you refer to the work of other authors in your assignment, you mustpractice citation by following Harvard System for Referencing.●If you are caught plagiarizing, you will have your grade reduced to zero andbe excluded from the course.STUDENT’S DECLARATION:I confirm that this is all my own work.Student Signature:Outcome/ Grade DescriptorsGradingCriteriaFeedbackAssessorGradeIVGradeEvaluate the benefit of networks(5.1)produce a coherentargument as to theadvantages anddisadvantages ofusing networkswithin anOrganisation企业或组织使用网络后的优缺点优点:资源共享交流方便等缺点:安全问题the criterionidentified inDescriptors ismetevaluate the variouscost, performance,security andutility valuesassociated with theinstallation of aNetwork安装完网络后花费安全性性能级别(局域网)评价安装网络后的花费,安全,性能the criterionidentified inDescriptors ismetprovide an overviewof a networkoperating systemand how it works给出一个网络操作系统的概述,和它怎样工作的。
the criterionidentified inDescriptors ismetPerform network management responsibilit-ies(5.4)write a report on therights andresponsibilities ofthe network managerand the network user写一个报告关于网络管理员和网络用户的权利(共享)与责任)the criterionidentified inDescriptors ismetapply control the criterionmechanisms in a typical network for managing users介绍一个控制机制管理用户防火墙identified in Descriptors is metcontrol printer queues and other forms of resource Usage控制打印序列和其他资源的使用操作系统的资源优先使用the criterion identified in Descriptors is metM1 understand thenetwork well point out what give rise to the appearance of networksM2 analyze accurately give a briefintroduction tonetworksM3 formal format present in astandard formatthat usesnetworkterminologyaccuratelyD1 give a cleardescription give a clear description of the rights and responsibilities of manager and the network userD2 provide usefulsuggestions give some suggestions on controlling mechanisms for the organizationD3 show creative ideas show creativethinking incontrollingprinter queuesand other formsof resourceusageAssessor’s additional commentsAssessor’s signature:Data:Student’s feedbackStudent’s signature:Data:IV’s commentsIV’s signature:Data:Assignment DescriptionScenarioWith the development of science and technology, network becomes more andmore popular, which is been used in various areas of our society. As users of network, we have to know what is the network, what give rise to the appearance of the network, how to evaluate the network and so on. However, if you are the administrator of the network, you also have to know how the network works, the various components of the network, the rights and responsibilities of the network manager and the network user, and how to control mechanisms in a typical network. So the whole assessment is required, please complete the following tasks.The specific requirements are listedbelow.随着科学技术的发展,网络变得越来越流行,这是在我们社会的各个领域。
作为网络的用户,我们必须知道什么是网络,什么引起的网络,如何评估网络等外观。
但是,如果您是网络管理员,你还必须知道如何在网络工程,网络的各个组成部分的权利和责任的网络管理员和网络用户,以及如何控制在一个典型的网络机制。
因此,整个评估是必需的,请完成以下任务。
具体要求如下。
TasksTask 1●produce a coherent argument as to the advantages and disadvantages ofusing networks within an organization(1a) ●evaluate the various cost, performance, security and utility valuesassociated with the installation of a network(1b) ●provide an overview of a network operating system and how it works(1c) 使用网络对一个组织的优缺点评估各种成本,性能,安全性和效用值与一个网络的安装提供一个网络操作系统和它的工作原理概述Task 2●write a report on the rights and responsibilities of the network manager andthe network user(1a) ●apply control mechanisms in a typical network for managing users(1b) ●control printer queues and other forms of resource usage(1c) 写在权利和责任,网络管理员和网络用户的报告在一个典型的网络应用管理用户控制机制控制打印机队列和其他形式的资源使用情况Reference templates:Books:Author PublishYearTitle (including sub-title) EditionPlace ofPublicationPublisherJournal articles:Internet resource:Author Publish Year Title (including sub-title) Journal title Volume Number PagesAuthor Publish Year Title (including sub-title) URL。