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Nathan Zuckerman, Philip Roth's alter-ego for nearly four decades now, is settling uncomfortably into old age. Now a literary recluse like . Lonoff, the mentor of his youth in The Ghost Writer, Zuckerman has survived prostate cancer (though, given his notorious past, not without ironic complications), and, as the novel begins, has returned once more to his school days in Newark, New Jersey. The device here is a class reunion, a gathering of former athletes, beauties, and outsiders, transformed by time into uncanny snapshots of their own immigrant grandparents. Zuckerman is most surprised to find Jerry Levov there. Now a ruthless, four-times-married Miami surgeon, Jerry had once been important to Nathan only because of the access their friendship afforded him into the private world of Jerry's older brother, Seymour "Swede" Levov, the finest athlete to ever walk the halls of Weequahic High and Nathan's lifelong hero. From their brief conversation, Nathan learns that the Swede's life was forever altered in 1968, when his teenage daughter, Merry, blew up the local post office, along with a local doctor, in protest of the Vietnam War. The rest of the story is left for Zuckerman's form of American Pastoral is established in two early passages. After his encounter with Jerry, Zuckerman becomes obsessed with the Swede, locking himself away to restore life to his fallen idol. Typical of Roth, the moment is captured in mirror images: "Is everyone to go off and lock the door and sit secluded like the lonely writers do, in a soundproof cell, summoning people out of words and then proposing that these word people are closer to the real thing than the real people that we mangle with our ignorance every day?" After pouring once more over the few "facts" at his disposal, Zuckerman/Roth retreats to fiction, adding, "anything more I wanted to know, I'd have to make up." And he does just that. One-fifth of the way through the novel, Zuckerman disappears completely, surrendering his own voice to the Swede's sorrowful Pastoral also finds its structural precedent in The Kid from Tomkinsville, a children's book the young Nathan had once discovered on the Swede's bookshelf. It tells the story of a baseball phenomenon whose life is marked equally by stunning success and heart-breaking tragedy. "I was ten and I had never read anything like it," Nathan says. "The cruelty of life. The injustice of it." It's perhaps too literary—too easy—of a device for Roth, but the 400+ page story of the Swede's fall follows a similar trajectory, as does, Roth implies, the story of America's recent history. For the Swede is Roth's finest personification of the post-war American Dream and all the complicated realities that frustrate it. "Three generations. All of them growing. The working. The saving. The success. Three generations in raptures over America. Three generations of becoming one with a people. And now with the fourth it had all come to nothing. The total vandalization of their world." The Swede's longed-for American pastoral becomes its grotesque counterpart, "the indigenous American berserk."What most fascinates me about this novel—along, of course, with Roth's beautiful prose—is its inability, ultimately, to make any sense of the Swede's tragedy. Those readers who turn to the final page, hoping to find resolution, answers, grace, will find, once again, only the question that haunts every preceding chapter: "And what is wrong with their life? What on earth is less reprehensible than the life of the Levovs?" The Swede, though occasionally chastised for lacking requisite self-awareness, is a good man: hard-working, honorable, a loving father and husband, a good-hearted liberal opposed to Vietnam and actively involved in the fight for civil rights. And yet he is unable to escape the violence, the destruction of his family, the rape of his daughter—that rape that haunts him more than the deaths or the explosions or the decay. He is unable to escape the mysterious, inarticulate pain that has become his life. After a reunion with Merry, the Swede returns home to a dinner party, broken by the sight of his frail, filthy daughter, but unable to speak about it. "He was supposed to do this forever," Roth writes. "However much he might crave to get out, he was to remain stopped dead in the moment in that box. Otherwise the world would explode."

DICKINSONS BECAUSE I COULD NOT STOP FOR DEATH Abstract:Analyzes the poem `Because I Could Not Stop for Death,' by Emily Dickinson. The use of remembered images of the past to clarify infinite conceptions through the establishment of a dialectical relationship between reality and imagination, the known and the unknown; The viewpoint of eternity; Understanding of the incomprehensible; The stages of existence. DICKINSON'S BECAUSE I COULD NOT STOP FOR DEATHIn "Because I Could Not Stop for Death" (J712), Emily Dickinson uses remembered images of the past to clarify infinite conceptions through the establishment of a dialectical relationship between reality and imagination, the known and the unknown.[1] By viewing this relationship holistically and hierarchically ordering the stages of life to include death and eternity, Dickinson suggests the interconnected and mutually determined nature of the finite and infinite.[2] From the viewpoint of eternity, the speaker recalls experiences that happened on earth centuries ago. In her recollection, she attempts to identify the eternal world by its relationship to temporal standards, as she states that "Centuries" (21) in eternity are "shorter than the [earthly] day" (22). Likewise, by anthropomorphizing Death as a kind and civil gentleman, the speaker particularizes Death's characteristics with favorable connotations. [3] Similarly, the finite and infinite are amalgamated in the fourth stanza: The Dews drew quivering and chill-- For only Gossamer, my Gown--My Tippett--only Tulle--(14-16) In these lines the speaker's temporal existence, which allows her to quiver as she is chilled by the "Dew," merges with the spiritual universe, as the speaker is attired in a "Gown" and cape or "Tippet," made respectively of "Gossamer," a cobweb, and "Tulle," a kind of thin, open net-temporal coverings that suggest transparent, spiritual qualities. Understanding the incomprehensible often depends on an appreciation of the progression of the stages of existence. By recalling specific stages of life on earth, the speaker not only settles her temporal past but also views these happenings from a higher awareness, both literally and figuratively. In a literal sense, for example, as the carriage gains altitude to make its heavenly approach, a house seems as "A Swelling of the Ground" (18). Figuratively the poem may symbolize the three stages of life: "School, where Children strove" (9) may represent childhood; "Fields of Gazing Grain" (11), maturity; and "Setting Sun" (12) old age. Viewing the progression of these stages-life, to death, to eternity-as a continuum invests these isolated, often incomprehensible events with meaning.[4] From her eternal perspective, the speaker comprehends that life, like the "Horses Heads" (23), leads "toward Eternity" (24).[5] Through her boundless amalgamation and progressive ordering of the temporal world with the spiritual universe, Dickinson dialectically shapes meaning from the limitations of life, allowing the reader momentarily to glimpse a universe in which the seemingly distinct and discontinuous stages of existence are holistically implicated and purposed. NOTES [1.] Others who have written on Emily Dickinson's responses to death include Ruth Miller (The Poetry of Emily Dickinson [Middletown, Conn.: Wesleyan U P, 1968]); Robert Weisbuch Emily Dickinson's Poetry [Chicago, 111.: U of Chicago P, 1975]); Carol Anne Taylor ("Kierkegaard and the Ironic Voices of Emily Dickinson ," Journal of English and German Philology 77 [1978]: 569-81); Charles Anderson ( Emily Dickinson's Poetry: Stairway of Surprise [New York: Holt, Reinhart, 1960]); Sharon Cameron (Lyric Time (Baltimore: John Hopkins U P, 1979]); Brita Lindberg-Seyersted (The Voice of the Poet: Aspects of Style in the Poetry of Emily Dickinson [Cambridge: Harvard U P, 1968]). DICKINSONS BECAUSE I COULD NOT STOP FOR DEATH [2.] The theoretical foundation for aspects of this argument rests in part on the philosophies of such men as Immanuel Kant, who represents the notion of the boundary of human experience as a belt of mediation: "The sensuous world is nothing but a chain of appearances connected according to universal laws; it has therefore no subsistence by itself; it is not the thing in itself and consequently must point to that which contains the basis of this experience, to beings which cannot be cognised merely as phenomena, but as things in themselves" (Prolegomena to Any Future Metaphysics, trans. and ed. Paul Carus [Chicago: Open Court Publishing Co., 1902] 124). [3.] In The Long Shadow, Clark Griffith grounds this poem in secular traditions, as he points out that Death's stopping for the Lady-Poet reflects a "tradition of nineteenth-century 'courtly love' " (129), an interpretation which allows the reader to evaluate "Death as either kind or malevolent" (130) and "Eternity" (131) as a "pleasant" place or realm of "nothingness" (132). [4.] In The Rhetoric of American Romance (Baltimore: Johns Hopkins U P 1984), Evan Carton says, "To approach God, for Dickinson, is generally to shape a more satisfying . . . relationship between oneself and the universe . . ." (270). [5.] Jane D. Eberwein, in Dickinson: Strategies of Limitation (Amherst: U of Massachusetts P, 1985). argues that Death does not "launch the persona of this poem into another world" but rather leaves the persona in a "House" (218). 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雾都孤儿的Learn to love and care Here I am sitting on a couch alone, thinking about what I have just finished reading with tears of sadness filling my eyes and fire of indignation filling my heart, which revived my exhausted soul that has already been covered by the cruelty and the selfishness of the secular world for a long time. It is truly what I felt after reading Oliver Twist, written by the prominent British author Charles Dickens. The resonance between me and the book makes me feel not only the kindness and the wickedness of all the characters in the novel, but what this aloof society lacks, and what I lack deep inside. These supreme resources I’m talking about right now are somewhat different from minerals, oil that we usually mention. They’re abstract like feelings, and some kinds of spiritual stimulation that all of us desire anxiously from one another —— love and care. Those charitable figures whom Dickens created in the novel are really what we need in life. They showed love and care to others, just as the gentle rain from the sky fell upon the earth, which was carved into my heart deeply. Mr. Brownlow is one such person. The other day he had one of his elaborate watches stolen by two skilled teenage thieves, Artful Dodger and Charley Bates, and thought naturally it was Oliver, who was an orphan and forced to live with a gang of thieves, that had done it because he was the only one near by after the theft had taken place. Being wrathful, he caught Oliver, and sent him to the police station where the ill-tempered, unfair magistrates worked. Fortunately for him, Oliver was proved innocent by one onlooker afterwards. With sympathy, Mr. Brownlow took the injured, poor Oliver to his own home. There Oliver lived freely and gleefully for some months as if he were Mr. Brownlow’s own son. One day, however, Mr. Brownlow asked Oliver to return some books to the bookseller and to send some money for the new books that he had already collected. The thief Oliver once stayed with kidnapped him. After that he disappeared in Mr. Brownlow’s life. Searching for a while, Mr. Brownlow had to believe the fact that he had run away with his money. But dramatically, they came across each other again a few years later. Without hesitation, Mr. Brownlow took Oliver home for the second time not caring if he had done something evil. Perhaps most of us would feel confused about Mr. Brownlow’s reaction. But as a matter of fact, this is just the lesson we should learn from him. Jesus said in the Bible. “Forgive not seven times, but seventy-times seven.” Why is that? Because forgiveness is our ability to remove negative thoughts and neutralize them so our energy may be spent on doing what we came here for. We cannot move forward in our future if past issues cloud our thinking. Stop put Mr. Brownlow into the list of your models. Always give people a second chance no matter what they might have done. That’s also a substantial part of loving and caring others. Then there are Mrs. Maylie and Rose, Oliver’s other benefactors. Maybe the reason they loved and cared Oliver was not because of forgiveness. In my point of view, it was trust. They had faith in Oliver when he was considered to be a filthy burglar who tried to break the front door of Maylie’s at midnight. But this wasn’t how these two ladies saw the whole thing. They denied Oliver’s crime immediately and listened attentively to Oliver’s own description of his miserable life. They were deeply touched by Oliver’s strong perseverance and astonishing vitality. Accordingly, they remedied Oliver’s body and heart and turned him into a different boy. He began to wear appropriate and clean suits which were tailor-made for him and receive education. As far as we can see, it is trust that helps us all live together without precaution. Sometimes trust can even lead us to miracles, which we often expect to come about, so why not trust? Trust yourself, trust others, and you’ll salute miracles every single day. In the novel, though the young Oliver again and again fell for conspiracies of those hideous thieves, who tried to torture Oliver’s body and poisoned Oliver’s heart intensely, he always lived on and tried hard to seek for his own life. Then I realized what supported him all through were actually beliefs. In most cases, what you believe is what you’ll become. Believe that you are unlimited, that you can do anything you commit to doing, and when you do, your accomplishments will know no bounds. You control your beliefs and that is how you ultimately control your life. It’s all dictated by your attitude. In the final analysis, love and care contain numerous forms, there are love of forgiveness, love of trust, etc. but they all come from your beliefs in life. When someone tells you he’s deceived you, forgive him anyway, when someone tells you what he’s done, trust him anyway, and when you face adversities while chasing your dreams, think about your beliefs, then what hinders you will become a piece of cake in no time. So find out “Olivers” in your life and do as Mr. Brownlow and Mrs. Maylie do: love them and care them, which cost nothing but save much. They enrich those who receive, without impoverishing those who give. They can be certain smallest words or actions, but the memory of them sometimes last forever. Charles Dickens said:“Love makes the world go around.” These immortal words have inspired and will keep on inspiring us to chant the melody of love and to say the prayer of care forevermore. Let us, therefore, enjoy life and treat other people lovingly. These principles are the roots and foundations of beliefs supporting this article and our mission together.

A computer is a machine that manipulates data according to a list of first devices that resemble modern computers date to the mid-20th century (1940–1945), although the computer concept and various machines similar to computers existed earlier. Early electronic computers were the size of a large room, consuming as much power as several hundred modern personal computers (PC).[1] Modern computers are based on tiny integrated circuits and are millions to billions of times more capable while occupying a fraction of the space.[2] Today, simple computers may be made small enough to fit into a wristwatch and be powered from a watch battery. Personal computers, in various forms, are icons of the Information Age and are what most people think of as "a computer"; however, the most common form of computer in use today is the embedded computer. Embedded computers are small, simple devices that are used to control other devices—for example, they may be found in machines ranging from fighter aircraft to industrial robots, digital cameras, and children's ability to store and execute lists of instructions called programs makes computers extremely versatile and distinguishes them from calculators. The Church–Turing thesis is a mathematical statement of this versatility: any computer with a certain minimum capability is, in principle, capable of performing the same tasks that any other computer can perform. Therefore, computers with capability and complexity ranging from that of a personal digital assistant to a supercomputer are all able to perform the same computational tasks given enough time and storage of computingMain article: History of computer hardware The Jacquard loom was one of the first programmable is difficult to identify any one device as the earliest computer, partly because the term "computer" has been subject to varying interpretations over time. Originally, the term "computer" referred to a person who performed numerical calculations (a human computer), often with the aid of a mechanical calculating history of the modern computer begins with two separate technologies—that of automated calculation and that of of early mechanical calculating devices included the abacus, the slide rule and arguably the astrolabe and the Antikythera mechanism (which dates from about 150-100 BC). Hero of Alexandria (c. 10–70 AD) built a mechanical theater which performed a play lasting 10 minutes and was operated by a complex system of ropes and drums that might be considered to be a means of deciding which parts of the mechanism performed which actions and when.[3] This is the essence of "castle clock", an astronomical clock invented by Al-Jazari in 1206, is considered to be the earliest programmable analog computer.[4] It displayed the zodiac, the solar and lunar orbits, a crescent moon-shaped pointer travelling across a gateway causing automatic doors to open every hour,[5][6] and five robotic musicians who play music when struck by levers operated by a camshaft attached to a water wheel. The length of day and night could be re-programmed every day in order to account for the changing lengths of day and night throughout the year.[4]The end of the Middle Ages saw a re-invigoration of European mathematics and engineering, and Wilhelm Schickard's 1623 device was the first of a number of mechanical calculators constructed by European engineers. However, none of those devices fit the modern definition of a computer because they could not be 1801, Joseph Marie Jacquard made an improvement to the textile loom that used a series of punched paper cards as a template to allow his loom to weave intricate patterns automatically. The resulting Jacquard loom was an important step in the development of computers because the use of punched cards to define woven patterns can be viewed as an early, albeit limited, form of was the fusion of automatic calculation with programmability that produced the first recognizable computers. In 1837, Charles Babbage was the first to conceptualize and design a fully programmable mechanical computer that he called "The Analytical Engine".[7] Due to limited finances, and an inability to resist tinkering with the design, Babbage never actually built his Analytical the late 1880s Herman Hollerith invented the recording of data on a machine readable medium. Prior uses of machine readable media, above, had been for control, not data. "After some initial trials with paper tape, he settled on punched cards..."[7] To process these punched cards he invented the tabulator, and the key punch machines. These three inventions were the foundation of the modern information processing industry. Large-scale automated data processing of punched cards was performed for the . Census in 1890 by Hollerith's company, which later became the core of IBM. By the end of the 19th century a number of technologies that would later prove useful in the realization of practical computers had begun to appear: the punched card, Boolean algebra, the vacuum tube (thermionic valve) and the the first half of the 20th century, many scientific computing needs were met by increasingly sophisticated analog computers, which used a direct mechanical or electrical model of the problem as a basis for computation. However, these were not programmable and generally lacked the versatility and accuracy of modern digital Stibitz is internationally recognized as a father of the modern digital computer. While working at Bell Labs in November of 1937, Stibitz invented and built a relay-based calculator he dubbed the "Model K" (for "kitchen table", on which he had assembled it), which was the first to use binary circuits to perform an arithmetic operation. Later models added greater sophistication including complex arithmetic and programmability.[8]A succession of steadily more powerful and flexible computing devices were constructed in the 1930s and 1940s, gradually adding the key features that are seen in modern computers. The use of digital electronics (largely invented by Claude Shannon in 1937) and more flexible programmability were vitally important steps, but defining one point along this road as "the first digital electronic computer" is difficult (Shannon 1940). Notable achievements include:EDSAC was one of the first computers to implement the stored program (von Neumann) Zuse's electromechanical "Z machines". The Z3 (1941) was the first working machine featuring binary arithmetic, including floating point arithmetic and a measure of programmability. In 1998 the Z3 was proved to be Turing complete, therefore being the world's first operational computer. The non-programmable Atanasoff–Berry Computer (1941) which used vacuum tube based computation, binary numbers, and regenerative capacitor memory. The secret British Colossus computers (1943),[9] which had limited programmability but demonstrated that a device using thousands of tubes could be reasonably reliable and electronically reprogrammable. It was used for breaking German wartime codes. The Harvard Mark I (1944), a large-scale electromechanical computer with limited programmability. The . Army's Ballistics Research Laboratory ENIAC (1946), which used decimal arithmetic and is sometimes called the first general purpose electronic computer (since Konrad Zuse's Z3 of 1941 used electromagnets instead of electronics). Initially, however, ENIAC had an inflexible architecture which essentially required rewiring to change its programming. Several developers of ENIAC, recognizing its flaws, came up with a far more flexible and elegant design, which came to be known as the "stored program architecture" or von Neumann architecture. This design was first formally described by John von Neumann in the paper First Draft of a Report on the EDVAC, distributed in 1945. A number of projects to develop computers based on the stored-program architecture commenced around this time, the first of these being completed in Great Britain. The first to be demonstrated working was the Manchester Small-Scale Experimental Machine (SSEM or "Baby"), while the EDSAC, completed a year after SSEM, was the first practical implementation of the stored program design. Shortly thereafter, the machine originally described by von Neumann's paper—EDVAC—was completed but did not see full-time use for an additional two all modern computers implement some form of the stored-program architecture, making it the single trait by which the word "computer" is now defined. While the technologies used in computers have changed dramatically since the first electronic, general-purpose computers of the 1940s, most still use the von Neumann are miniaturized devices that often implement stored program using vacuum tubes as their electronic elements were in use throughout the 1950s, but by the 1960s had been largely replaced by transistor-based machines, which were smaller, faster, cheaper to produce, required less power, and were more reliable. The first transistorised computer was demonstrated at the University of Manchester in 1953.[10] In the 1970s, integrated circuit technology and the subsequent creation of microprocessors, such as the Intel 4004, further decreased size and cost and further increased speed and reliability of computers. By the 1980s, computers became sufficiently small and cheap to replace simple mechanical controls in domestic appliances such as washing machines. The 1980s also witnessed home computers and the now ubiquitous personal computer. With the evolution of the Internet, personal computers are becoming as common as the television and the telephone in the smartphones are fully-programmable computers in their own right, in a technical sense, and as of 2009 may well be the most common form of such computers in program architectureMain articles: Computer program and Computer programmingThe defining feature of modern computers which distinguishes them from all other machines is that they can be programmed. That is to say that a list of instructions (the program) can be given to the computer and it will store them and carry them out at some time in the most cases, computer instructions are simple: add one number to another, move some data from one location to another, send a message to some external device, etc. These instructions are read from the computer's memory and are generally carried out (executed) in the order they were given. However, there are usually specialized instructions to tell the computer to jump ahead or backwards to some other place in the program and to carry on executing from there. These are called "jump" instructions (or branches). Furthermore, jump instructions may be made to happen conditionally so that different sequences of instructions may be used depending on the result of some previous calculation or some external event. Many computers directly support subroutines by providing a type of jump that "remembers" the location it jumped from and another instruction to return to the instruction following that jump execution might be likened to reading a book. While a person will normally read each word and line in sequence, they may at times jump back to an earlier place in the text or skip sections that are not of interest. Similarly, a computer may sometimes go back and repeat the instructions in some section of the program over and over again until some internal condition is met. This is called the flow of control within the program and it is what allows the computer to perform tasks repeatedly without human , a person using a pocket calculator can perform a basic arithmetic operation such as adding two numbers with just a few button presses. But to add together all of the numbers from 1 to 1,000 would take thousands of button presses and a lot of time—with a near certainty of making a mistake. On the other hand, a computer may be programmed to do this with just a few simple instructions. For example: mov #0,sum ; set sum to 0 mov #1,num ; set num to 1loop: add num,sum ; add num to sum add #1,num ; add 1 to num cmp num,#1000 ; compare num to 1000 ble loop ; if num <= 1000, go back to 'loop' halt ; end of program. stop runningOnce told to run this program, the computer will perform the repetitive addition task without further human intervention. It will almost never make a mistake and a modern PC can complete the task in about a millionth of a second.[11]However, computers cannot "think" for themselves in the sense that they only solve problems in exactly the way they are programmed to. An intelligent human faced with the above addition task might soon realize that instead of actually adding up all the numbers one can simply use the equationand arrive at the correct answer (500,500) with little work.[12] In other words, a computer programmed to add up the numbers one by one as in the example above would do exactly that without regard to efficiency or alternative A 1970s punched card containing one line from a FORTRAN program. The card reads: "Z(1) = Y + W(1)" and is labelled "PROJ039" for identification practical terms, a computer program may run from just a few instructions to many millions of instructions, as in a program for a word processor or a web browser. A typical modern computer can execute billions of instructions per second (gigahertz or GHz) and rarely make a mistake over many years of operation. Large computer programs comprising several million instructions may take teams of programmers years to write, thus the probability of the entire program having been written without error is highly in computer programs are called "bugs". Bugs may be benign and not affect the usefulness of the program, or have only subtle effects. But in some cases they may cause the program to "hang" - become unresponsive to input such as mouse clicks or keystrokes, or to completely fail or "crash". Otherwise benign bugs may sometimes may be harnessed for malicious intent by an unscrupulous user writing an "exploit" - code designed to take advantage of a bug and disrupt a program's proper execution. Bugs are usually not the fault of the computer. Since computers merely execute the instructions they are given, bugs are nearly always the result of programmer error or an oversight made in the program's design.[13]In most computers, individual instructions are stored as machine code with each instruction being given a unique number (its operation code or opcode for short). The command to add two numbers together would have one opcode, the command to multiply them would have a different opcode and so on. The simplest computers are able to perform any of a handful of different instructions; the more complex computers have several hundred to choose from—each with a unique numerical code. Since the computer's memory is able to store numbers, it can also store the instruction codes. This leads to the important fact that entire programs (which are just lists of instructions) can be represented as lists of numbers and can themselves be manipulated inside the computer just as if they were numeric data. The fundamental concept of storing programs in the computer's memory alongside the data they operate on is the crux of the von Neumann, or stored program, architecture. In some cases, a computer might store some or all of its program in memory that is kept separate from the data it operates on. This is called the Harvard architecture after the Harvard Mark I computer. Modern von Neumann computers display some traits of the Harvard architecture in their designs, such as in CPU it is possible to write computer programs as long lists of numbers (machine language) and this technique was used with many early computers,[14] it is extremely tedious to do so in practice, especially for complicated programs. Instead, each basic instruction can be given a short name that is indicative of its function and easy to remember—a mnemonic such as ADD, SUB, MULT or JUMP. These mnemonics are collectively known as a computer's assembly language. Converting programs written in assembly language into something the computer can actually understand (machine language) is usually done by a computer program called an assembler. Machine languages and the assembly languages that represent them (collectively termed low-level programming languages) tend to be unique to a particular type of computer. For instance, an ARM architecture computer (such as may be found in a PDA or a hand-held videogame) cannot understand the machine language of an Intel Pentium or the AMD Athlon 64 computer that might be in a PC.[15]Though considerably easier than in machine language, writing long programs in assembly language is often difficult and error prone. Therefore, most complicated programs are written in more abstract high-level programming languages that are able to express the needs of the computer programmer more conveniently (and thereby help reduce programmer error). High level languages are usually "compiled" into machine language (or sometimes into assembly language and then into machine language) using another computer program called a compiler.[16] Since high level languages are more abstract than assembly language, it is possible to use different compilers to translate the same high level language program into the machine language of many different types of computer. This is part of the means by which software like video games may be made available for different computer architectures such as personal computers and various video game task of developing large software systems is an immense intellectual effort. Producing software with an acceptably high reliability on a predictable schedule and budget has proved historically to be a great challenge; the academic and professional discipline of software engineering concentrates specifically on this A traffic light showing a computer is being employed to drive a traffic signal at an intersection between two streets. The computer has the following three basic (Streetname, Color) Turns the light on Streetname with a specified Color on. OFF(Streetname, Color) Turns the light on Streetname with a specified Color off. WAIT(Seconds) Waits a specifed number of seconds. START Starts the program REPEAT Tells the computer to repeat a specified part of the program in a loop. Comments are marked with a // on the left margin. Assume the streetnames are Broadway and Main

Macroeconomics is a sub-field of economics that examines the behavior of the economy as a whole, once all of the individual economic decisions of companies and industries have been summed. Economy-wide phenomena considered by macroeconomics include Gross Domestic Product (GDP) and how it is affected by changes in unemployment, national income, rate of growth, and price levels. In contrast, microeconomics is the study of the economic behaviour and decision-making of individual consumers, firms, and industries. Macroeconomics can be used to analyze how to influence government policy goals such as economic growth, price stability, full employment and the attainment of a sustainable balance of payments. Macroeconomics is sometimes used to refer to a general approach to economic reasoning, which includes long term strategies and rational expectations in aggregate behavior. Until the 1930s most economic analysis did not separate out individual economics behavior from aggregate behavior. With the Great Depression of the 1930s, suffered throughout the developed world at the time, and the development of the concept of national income and product statistics, the field of macroeconomics began to expand. Particularly influential were the ideas of John Maynard Keynes, who formulated theories to try to explain the Great Depression. Before that time, comprehensive national accounts, as we know them today, did not exist . One of the challenges of economics has been a struggle to reconcile macroeconomic and microeconomic models. Starting in the 1950s, macroeconomists developed micro-based models of macroeconomic behavior (such as the consumption function). Dutch economist Jan Tinbergen developed the first comprehensive national macroeconomic model, which he first built for the Netherlands and later applied to the United States and the United Kingdom after World War II. The first global macroeconomic model, Wharton Econometric Forecasting Associates LINK project, was initiated by Lawrence Klein and was mentioned in his citation for the Nobel Memorial Prize in Economics in 1980. Theorists such as Robert Lucas Jr suggested (in the 1970s) that at least some traditional Keynesian (after British economist John Maynard Keynes) macroeconomic models were questionable as they were not derived from assumptions about individual behavior, although it was not clear whether the failures were in microeconomic assumptions or in macroeconomic models. However, New Keynesian macroeconomics has generally presented microeconomic models to shore up their macroeconomic theorizing, and some Keynesians have contested the idea that microeconomic foundations are essential, if the model is analytically useful. An analogy might be that the fact that quantum phisics is not fully consistent with relativity theory doesn´t mean that realtivity is false. Many important microeconomic assumptions have never been proved, and some have proved wrong. The various schools of thought are not always in direct competition with one another - even though they sometimes reach differing conclusions. Macroeconomics is an ever evolving area of research. The goal of economic research is not to be "right," but rather to be accurate. It is likely that none of the current schools of economic thought perfectly capture the workings of the economy. They do, however, each contribute a small piece of the overall puzzle. As one learns more about each school of thought, it is possible to combine aspects of each in order to reach an informed synthesis. The traditional distinction is between two different approaches to economics: Keynesian economics, focusing on demand; and supply-side (or neo-classical) economics, focusing on supply. Neither view is typically endorsed to the complete exclusion of the other, but most schools do tend clearly to emphasize one or the other as a theoretical foundation. • Keynesian economics focuses on aggregate demand to explain levels of unemployment and the business cycle. That is, business cycle fluctuations should be reduced through fiscal policy (the government spends more or less depending on the situation) and monetary policy. Early Keynesian macroeconomics was "activist," calling for regular use of policy to stabilize the capitalist economy, while some Keynesians called for the use of incomes policies. • Supply-side economics delineates quite clearly the roles of monetary policy and fiscal policy. The focus for monetary policy should be purely on the price of money as determined by the supply of money and the demand for money. It advocates a monetary policy that directly targets the value of money and does not target interest rates at all. Typically the value of money is measured by reference to gold or some other reference. The focus of fiscal policy is to raise revenue for worthy government investments with a clear recognition of the impact that taxation has on domestic trade. It places heavy emphasis on Say's law, which states that recessions do not occur because of failure in demand or lack of money. • Monetarism, led by Milton Friedman, which holds that inflation is always and everywhere a monetary phenomenon. It rejects fiscal policy because it leads to "crowding out" of the private sector. Further, it does not wish to combat inflation or deflation by means of active demand management as in Keynesian economics, but by means of monetary policy rules, such as keeping the rate of growth of the money supply constant over time. • New Keynesian economics, which developed partly in response to new classical economics, strives to provide microeconomic foundations to Keynesian economics by showing how imperfect markets can justify demand management. • Austrian economics is a laissez-faire school of macroeconomics. It focuses on the business cycle that arises from government or central-bank interference that leads to deviations from the natural rate of interest. • Post-Keynesian economics represents a dissent from mainstream Keynesian economics, emphasizing the role of uncertainty and the historical process in macroeconomics. • New classical economics. The original theoretical impetus was the charge that Keynesian economics lacks microeconomic foundations -- . its assertions are not founded in basic economic theory. This school emerged during the 1970s. This school asserts that it does not make sense to claim that the economy at any time might be "out-of-equilibrium". Fluctuations in aggregate variables follow from the individuals in the society continuously re-optimizing as new information on the state of the world is revealed. Later yielded an explicit school which argued that macro-economics does not have micro-economic foundations, but is instead the tool of studying economic systems at equilibrium. 宏观经济学是一种分场经济学的行为,研究是在整个经济中,一旦所有的个人的经济决策,为公司和产业被。宏观经济学认为经济现象包括国内生产总值(GDP)以及它是如何变化影响失业的国民收入的)经济成长率、价格水平。相反,微观经济学研究的就是经济行为和决策的个体消费者,公司和行业。宏观经济学可以用来分析如何影响政府的政策的目标,比如经济增长,价格稳定,充分就业和获取可持续国际收支差额。宏观经济学有时用来指一个经济理论的主要途径,包括长期战略的期望和理性综合行为。直到30年代为止,大部分的经济分析没有独立的个人经济综合行为举止。与1930年代的经济大萧条,遭受了在所有发达国家,发展国民收入的概念和产品的统计数据,但是研究领域的宏观经济学开始扩展。具有特殊影响力的想法是,约翰•梅纳德凯恩斯理论,努力向他们解释制定了经济大萧条。在那时候,综合国民经济核算,如同我们知道他们今天,是不存在的。经济学的一个挑战是一场斗争调和宏观经济政策和微观经济政策,模型。开始于20世纪50年代,macroeconomists发达micro-based模型的宏观经济行为(如消费函数)。1月Tinbergen荷兰经济学家第一个全面发展国家宏观经济模型,该模型他第一次建成为荷兰和后应用于美国和英国二战之后。第一个全球宏观经济模型,沃顿计量预测伙伴联系工程项目,发生在劳伦斯发起克莱恩和被提及他的嘉奖经济学诺贝尔经济学奖1980年。理论家如罗伯特·卢卡斯认为(是在上世纪70年代),认为至少有一些传统的凯恩斯(英国经济学家约翰梅纳德凯恩斯)宏观经济模型都是可疑的,因为他们不是来源于假设的个人行为,虽然现在还不清楚这些失败在微观经济的假定,或是对宏观经济模型。然而,最新凯恩斯主义的宏观微观模型提出了大致以支持他们的宏观经济理论有争议,一些凯恩斯主义者的想法,微观经济基础是必要的,如果模型是分析有用的。打个比方可能是,这样的事实,即量子phisics并不完全符合相对论´,并不代表没有realtivity是假的。许多重要的微观经济假设从来没有被证明,而有些人的证明是错误的。各种各样的思想学派并不总是在彼此的直接竞争,尽管他们有时会达到不同的结论。宏观经济学是一种前所未有的领域的研究。研究经济学的目标不是"正确",而是是精确的。很有可能是学校目前尚无一个经济思想完全捕捉运作方式的经济。不过,他们的贡献每一小块整体难题。当你学会更多关于每个思想学派,它能把方面的每一个为了达到一个通知的合成。传统的区别是留给经济学两种不同的方法,重点凯恩斯经济学和供方需求;(或古典)经济学、关注供应。也都是典型的观点完全排除其他,但大多数学校都往往清晰地强调一个或另一个是的理论基础。•凯恩斯经济学交融在总需求,以解释失业率和商业周期。商业周期波动,应减少通过财政政策(政府花费或多或少根据实际情况)和货币政策。早期凯恩斯主义的宏观经济学是“活动家,定期使用《召唤的政策稳定资本主义经济,虽然有些凯恩斯主义要求使用收入政策。•供给的经济学的作用很明显地在当前货币政策与财政政策。关注于货币政策应该是完全对价格的钱所确定的货币供应的需求的特点,为了金钱。它提倡货币政策,直接目标钱的价值,不目标利率。典型的钱的价值在于用参考金或其他参考。财政政策的重点是提高政府农业投资价值的收入为一个明确的认识税收的影响在国内贸易。它设置了过度强调了说的法律,它表明不会发生经济衰退需求下降、因为没有缺钱。•货币主义的带领下,由弗里德曼,认为始终通货膨胀是一种货币现象。财政政策拒绝,因为会导致“挤退”的私人生活。此外,它不希望对抗通货膨胀或通货紧缩采用主动需求管理在凯恩斯经济学,通过货币政策规则,即坚持的增长速度恒定的钱。凯恩斯•新经济发达的部分原因是为了适应新古典经济学、致力于提供凯恩斯现代经济学的微观经济基础显示出了市场的不完善就能名正言顺的需求管理等。•奥地利经济学是个自由放任主义的学校的宏观经济。它侧重于商业周期,而政府或中央银行的干扰导致偏离自然失业率的兴趣。•Post-Keynesian经济学所代表了凯恩斯经济学主流的作用,强调历史过程中不确定性和宏观经济。•新古典经济学。原理论动力的费用是凯恩斯经济学缺乏有效的微观经济基础——亦即其断言不成立于基本经济理论。这所学校出现在20世纪70年代。这所学校断言它是没有道理的主张经济会随时out-of-equilibrium”。波动的总变量遵从的在这个社会的个人不断re-optimizing新信息的状态的世界就会显现出来。后来取得了一个显式学校一样,认为宏观经济学没有微观经济基础,反而学习经济系统的工具在平衡。

2月14日那天，我们观看了电影《离开雷锋的日子》后，我受到了很大的教育。影片讲述一位雷锋生前的战友乔安山，在一次倒车时不小心车尾撞在了木柱子上，柱子倒了，正好砸在了雷锋的太阳穴上，意想不到的事情发生了……他为了弥补自己的过失，决定把雷锋精神发扬下去。乔安山是雷锋生前的亲密战友，他退伍后与妻子在一家公司当司机，一直受着雷锋深远的影响，做什么事情都用雷锋精神要求自己。有一次，一位老爷爷在过马路的时候被一辆深蓝色的桑塔那汽车撞倒，随后，汽车转身就跑。而后，又驶过来一辆与其同样的汽车，为了不受诬陷，司机竟开车走了。乔安山在出车途中发现了这位满脸是血的老爷爷。乔安山马上把老爷爷送到医院，并掏出自己钱为老爷爷治伤，又通知患者的家属。可是，老人的儿女因为不愿负担医药费，竟诬陷乔安山是肇事者，还要他赔偿4万元。难道世界上没有雷锋精神了吗？正因此事，电视台还专门采访了乔安山。又一次出车，乔安山的汽车在途中遇到了一位快要生孩子的孕妇，他毅然停下车来，送往这位孕妇去医院。谁知，在途中，检查处竟说领导要他停车处置，他不顾那么多，与检查员争辩了起来，最后，一位老奶奶被他的所作所为而感动，下车打了自己的亲生儿子，这才过去了。乔安山内心激动万分。人们没有忘记雷锋！还有一次，乔安山与儿子一起出车，他们的汽车陷进了泥潭，整整停留了一夜。路过的一群中学生帮他们把气车从泥潭中推了出来。乔安山正要给大家报酬时，学生们说：“我们不要钱，我们是学雷锋做好事的。”并且还向他介绍了他们的爱心帽子，中间是一个和平鸽，代表的是和平。在这个鸽子的外面，有一颗心围绕，代表的是爱心。乔安山听了后非常感动，他终于明白了，世界上还有像雷锋这样的人，雷锋还活着！是的，雷锋并没有死，社会上还有千千万万的活雷锋。人民需要像雷锋这样的人，社会也需要他。在我们的生活中涌现出了许许多多的雷锋事件，有热心帮助他人的学生，有照顾孤寡老人的，还有许多不知姓名的雷锋……他们都是我们学习的榜样。我希望我们每个人都能像雷锋叔叔那样为人民、为社会做贡献。好人最终会有好报！"Lei Feng day leave" Impression February 14th day, we watched the film "left Lei Feng day," I got a GREat education. Video on a former comrade-in-arms QIAO An Lei Feng Shan, in a careless reversing hit the rear of the wooden pillars, pillars reversed exactly in the smashing of Taiyangjueshang Lei Feng, an unexpected happened…… he In order to make up for their errors and decided to carry forward the spirit of Lei Feng. QIAO An Shan Lei Feng is a close comrade-in-arms during his lifetime, after his ex-wife in a company when the driver, and Lei Feng has been受着far-reaching implications are doing with the spirit of Lei Feng demands on themselves. Once, a grandfather in the road by the time the Sangda a dark blue car that knocked down, and then, the car turned around run. Then they would to a passing car with the same, in order to not be framed, the driver actually drove away. QIAO An mountain in the way that the maximum number of the Manlianshixie grandfather. QIAO An-grandfather sent to the hospital immediately, and took out their own money to treat grandfather, and informed the families of patients. However, the sons and daughters of the elderly do not want to burden because of the medical expenses, even framed QIAO An mountains are the perpetrators, but also his compensation 40,000. Is not the spirit of Lei Feng world? Because of this, television has also interviewed QIAO An Shan. The maximum number again, QIAO An Hill, the car on the way encountered a pregnant woman about to have children, he decided to stop vehicles, rushed to the pregnant women go to the hospital. Little did they know, the way to check the senators said that the leaders should stop his disposal, he ignored so much, and argue the inspectors, and finally, a grandmother by his actions and moved to alight fought their son This passed. QIAO An extremely excited Hill hearts. People have not forgotten Lei Feng! On another occasion, QIAO An Shan and son with the maximum number of their car trapping a quagmire, full stop of the night. Passing a group of middle school students to help them from the gas pushed out of the quagmire. QIAO An Shan going to reward you, the students said: "We do not want money, we have done good things to learn from Lei Feng." And also briefed him on their love hats, the middle is a peaceful dove, representative of the peace. In this pigeons outside, a heart on behalf of the love. QIAO An Shan After listening very touched by this, he finally came to understand the world that there are people like Lei Feng, Lei Feng is still alive! Yes, Lei Feng did not die, there are tens of thousands of social Guoleifeng. People need such as Lei Feng, the community also needs him. In our life has produced numerous incidents of Lei Feng, enthusiastic students to help others, take care of childless elderly people, many do not know the name of Lei Feng…… They are a good example for us. I hope that each of us can be like Uncle Lei Feng as for the people, make their contributions to society. The good guys will eventually Weihaobao!

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