People all over the world today are beginning to hear and learn more and more about the problem of pollution. Pollution is caused either by man’s release of completely new and often artificial substances into the environment, or by releasing greatly increased amounts of a natural substance, such as oil from oil tankers into the sea.
The whole industrial process which makes many of the goods and machines we need and use in our daily lives, is bound to create a number of waste products which upset the environmental balance, or the ecological balance as it is also known. Many of these waste products can be prevented or disposed of sensibly, but clearly while more and more new and complex goods are produced there will be new, dangerous wastes to be disposed of, for example, the waste products from nuclear power stations. Many people, therefore, see pollution as only part of a larger and more complex problem, that is, the whole process of industrial production and consumption of goods.
Others again see the problem mainly in connection with agriculture, where new methods are helping farmers grow more and more on their land to feed our ever-increasing populations. However, the land itself if gradually becoming worn out as it is being used, in some cases, too heavily, and artificial fertilizers cannot restore the balance.
Whatever its underlying reasons, there is no doubt that much of the pollution caused could be controlled if only companies, individuals and governments would make more efforts. In the home there is an obvious need to control litter and waste. Food comes wrapped up three or four times in packages that all have to be disposed of; drinks are increasingly sold in bottles or tins which cannot be reused. This not only causes a litter problem, but also is a great waste of resources, in terms of glass, metals and paper. Advertising has helped this process by persuading many of us not only to buy things we neither want nor need, but also to throw away much of what we do buy.
Pollution and waste combine to be a problem everyone can help to solve by
cutting out unnecessary buying, excess consumption and careless disposal of the products we use in our daily lives.
先要理解所引古籍或名言的含义,现联系说明的内容,看看这两者间有何内在联系,就能领悟其引用的目的了。在说明的开头文段或中间叙述有关的故事,究竟起何作用:
在文章开头叙述故事,其目的往往是为了引起读者阅读的兴趣,或者是为了引出说明对象。
在文章或段落中间叙述故事,往往是为了增强说明文的可读性,同时也为了说明事物的来源或作用。
适合这类题型的阅读理解通常具体反映在文章的题目或一段短文的小标题上;很多文章从一开头就直接说出观点,表达中心思想。所以对于这类题型,一定要提示学生注意主题句和主题段,绝大多数的短文类似于语文的老三段,注意段与段之间的联系,注意隐藏的中心思想,准确了解文章结构,把握句与句之间的关系,注重逻辑关系,把握住文章的脉络即可。
Which one do you prefer, to solve problems on your own experience and knowledge, or to ask others for advice?
As knowledge and experience serve as twim towers in problem-solving, one is often presented with two major paths that pave the way for final fulfillment, eitther to wrack his brain, just like what happened to Neuton, siiting for many years under an apple tree and eventually figuring out ond of the greatest universal rules that govern the whole globe, or to seek for others’ widsom through their advice, just as in the case of Benjinin Franklin, gathering great minds under one roof and then establishing a most world-renown libray. Both ways work. When a practical goal is involved, however, Benjimin Franklin may best be regareded as a role model in this respect and asking people for advice often turn out to be the prime alternative. Experience and knowledge borrowed or learned from others’ advice contribute greatly to effectiveness and effeciency for a goal-accomplishment. Not all experience and knowledge related to problem-solving can be obtained by personal effort alone due to limitations of mind and capabilities of each individual. A single thought in someone’s mind is, more often than not, far less shining compared with group’s wisdom. That explains the famous old saying that one sees further when standing upon the shoulders’ of past great giants; that explains why a great leader is always with greater minds; that also explains why teamwork in corperation is highly emphasized in the 21st century. Brainstorm and exchange of ideas between different thoughts never fail to enhance capabilities of each individula involved, a team, a company, an institution, a country, or even the entire global village.
Asking others’ advice instead of getting everything done on one’s own promotes democracy and communication too. In terms of democracy, it is necessary to give others rights and chances to speak since the problem may concern them in different ways, and their sayingin turn reflects our respect toward freedom of speech as well as their wisdom. In terms of communication, idea exchange sometimes focuses more than solutions, and hereby better mutual
understanding about perspectives, principles, praticalities and personalities of each other.
Admittely turning to others for help and suggestion by no means refers to absolute and irresponsible dependence. Consideration upon different thoughts and ideas broadens our mind, enlarges our vision, furthers understanding, enhances more effective and efficient brainstorm, and stresses mutual respect in groups and communities, which
undoubtedly gives rise to better, if not the best solutions. As is paraphrased from John F Kenedy, brainstormed, there is little we cannot do while divided, there is little we can do.
Everyone has goals. Many people do not reach their goals for lack of planning. These three sets of goals should be developed: lifetime, intermediate and short term.
Lifetime goals should be written out. These goals should be clear and reasonable. F
or instance, the goal to win a research prize is clear and measurable. Other lifetime goals might include publishing a certain number of influential books or articles, earning a departmental chairmanship at a major university, successfully competing for a grant from the National Science Foundation or securing a consultantship with a big corporation. Intermediate goals relate to outcomes during the next few years. For the beginning doctoral student, intermediate goals may include completion of course work and preparation of a doctoral research proposal. Like lifetime goals, these are measurable and clearly stated.
Short-term goals involve outcomes expected during the next 12 months. These goals are more performance oriented, and they help with achievement of intermediate goals. Examples of short-term goals are earning an A in a course, learning how to program a computer or performing an experiment.
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