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试论述建构主义学习理论的知识观、学习观和学生观的内容及其对实际教学的指导作用。
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TEXT3 “There is on and only one social responsibility of business,” wrote Milton Friedman, a Nobel prize-winning economist, “That is, to use its resources and engage in activities designed to increase its profits.” But even if you accept Friedman’s premise and regard corporate social responsibility (CSR) policies as a waste of shareholders’ money, things may not be absolutely clear-cut. New research suggests that CSR may create monetary value for companies-at least when they are prosecuted for corruption. The largest firms in America and Britain together spend more than $15 billion a year on CSR, according to an estimate by EPG, a consulting firm. This could add value to their businesses in three ways. First, consumers may take CSR spending as a “signal” that a company’s products are of high quality. Second, customers may be willing to buy a company’s products as an indirect way to donate to the good causes it helps. And third, through a more diffuse “halo effect,” whereby its good deeds earn it greater consideration from consumers and others. Previous studies on CSR have had trouble differentiating these effects because consumers can be affected by all three. Al recent study attempts to separate them by looking at bribery prosecutions under America’s Foreign Corrupt Practices Act (FCPA). It argues that since prosecutors do not consume a company’s products as part of their investigations, they could be influenced only by the halo effect. The study found that, among prosecuted firms, those with the most comprehensive CSR programmes tended to get more lenient penalties,. Their analysis ruled out the possibility that it was firm’s political influence, rather than their CSR stand, that accounted for the leniency: Companies that contributed more to political campaigns did not receive lower fines. In all, the study concludes that whereas prosecutors should only evaluate a case based on its merits, they do seem to be influenced by a company’s record in CSR. “We estimate that either eliminating a substantial labour-rights concern , such as child labour, or increasing corporate giving byabout20% results in fines that generally are 40% lower than the typical punishment for bribing foreign officials”, says one researcher. Researchers admit that their study does not answer the question of how much businesses ought to spend on CSR. Nor does it reveal how much companies are banking on the halo effect, rather than the other possible benefits, when they decide their do-gooding policies. But at least they have demonstrated that when companies get into trouble with the law, evidence of good character can win them less costly punishment. According to Paragraph 2,CSR helps a company by
在函数中，可以用aut0、extem、register和static这四个关键字中的一个来说明变量的存储类型，如果不说明存储类型，则默认的存储类型是（ ）。
Mental health is our birthright. (46) we don’t have to learn how to be mentally healthy, it is built into us in the same way that our bodies know how to heal a cut or mend a broken bone. Mental health can’t be learned, only reawakened. It is like immune system of the body, which under stress or through lack of nutrition or exercise can be weakened, but which never leaves us. When we don’t understand the value of mental health and we don’t know how to gain access to it, mental health will remain hidden from us. (47) Our mental health doesn’t go anywhere, like the sun behind a cloud, it can be temporarily hidden from view, but it is fully capable of being restored in an instant. Mental health is the seed that contains self-esteem –confidence in ourselves and an ability to trust in our common sense. It allows us to have perspective on our lives-the ability to not take ourselves too seriously, to laugh at ourselves, to see the bigger picture, and to see that things will work out. It’s a form of innate or unlearned optimism. (48) Mental health allows us to view others with sympathy if they are having troubles, with kindness if they are in pain, and with unconditional love no matter who they are. Mental health is the source of creativity for solving problems, resolving conflict, making our surroundings more beautiful, managing our home life, or coming up with a creative business idea or invention to make our lives easier. It gives us patience for ourselves. And toward others as well as patience while driving, catching a fish, working on our car, or raising a child. It allows us to see the beauty that surrounds us each moment in nature, in culture, in the flow of our daily lives. (49)Although mental health is the cure-all for living our lives, it is perfecting ordinary as you will see that it has been there to direct you through all your difficult decisions. It has been available even in the most mundane of life situations to show you right from wrong, good from bad, friend from foe. Mental health has commonly been called conscience, instinct, wisdom, common sense, or the inner voice, we think of it simply as a health and helpful flow of intelligent thought. (50) As you will come to see, knowing that mental health is always available and knowing to trust it allow us to slow down to the moment and live life happily. we don’t have to learn how to be mentally healthy, it is built into us in the same way that our bodies know how to heal a cut or mend a broken bone.
Text 2 For the first time in history more people live in towns than in the country. In Britain this has had a curious result. While polls show Britons rate”the countryside”alongside the royal family, Shakespeare and the National Health Serivce (NHS) as what makes them proudest of their country, this has limited political support. A century ago Octavia Hill Launched the National Trust not to rescue stylish houses but to save“the beauty of natural places for everyone forever”. It was specifically to provide city dwellers with spaces for leisure where they could experience“a refreshing air .”Hill’s pressure later led to creation of national parks and green belts. They don’t make countryside any more，and every year concrete consumes more of it . It needs constant guardianship. At the next election none of the big parties seem likely to endorse this sentiment. The conservatives’planning reform explicitly gives rural development priority over conservation， even authorising“off-plan”building where local people might object. The concept of sustainable development has been defined as profitable. Labour likewise wants to discontinue local planning where councils oppose development. The Liberal Democrats are silent. Only Ukip, sensing its chance,has sided with those pleading for a more considered approach to using green land. Its Campaign to Protect Rural England struck terror into many local conservative parties. The sensible place to build new houses，factories and offices is where people are，in cities and towns where infrastructure is in place. The London agents Stirling Ackroyd recently identified enough sites for half a million houses in the London area alone，with no intrusion on green belt. What is true of London is even truer of the provinces. The idea that”housing crisis”equals“concreted meadows” is pure lobby talk. The issue is not the need for more houses but, as always，where to put them. Under lobby pressure，George Osborne favours rural new-build against urban renovation and renewal. He favours out-of-town shopping sites against high streets . This is not a free market but a biased one. Rural towns and villages have grown and will always grow. They do so best where building sticks to their edges and respects their character. We do not ruin urban Development should be planned, not let rip. After the Netherlands, Britain is Europe’s most crowed country. Half a century of town and country planning has enabled it to retain an enviable rural coherence, while still permitting low-density urban living. There is no doubt of the alternative --- the corrupted landscapes of southern Portugal, Spain or Ireland. Avoiding this rather than promoting it should unite the left and right of the political spectrum. According to Paragraph 2，the achievements of the National Trust are now being
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