[范文]
   Under the fast globalization, learning a foreign language tends to be necessary. Some even advocate that children should start to learn a foreign language since their primary school. Personally, I reckon that this proposal will cause more harm other than benefits to children.
   Admittedly, it will be much more advantageous for children to learn a new language at an early age. Scientists substantiate that young kids have already formed the cognitive capability to distinguish the foreign language from their mother tongue, let alone the children over 7 years old. Indeed, children's intrinsic curiosity and language gift can make it easier for them to master the foreign language compared with those who have got used to the pattern of their own language. Statistics present that most Swiss children can spontaneously master at least three languages since age 9.
   However, the hazards brought by this practice might be greater. Initially, it will squeeze children's time for other activities. Indeed, students at this age are supposed to cultivate a variety of interests and hobbies instead of learning a foreign language. Spending extra energy on language learning might not be reasonable and worthwhile, since children's spare time is actually limited. According to the theory of opportunity cost, children will probably identify their marvelous potential in other domains with the time which they spend on languages, such as playing ball games or musical instruments. In addition, learning a foreign language too early might somehow frustrate children's initiative. To some extent, language study is not as that simple as some people imagine, especially when relevant exams are involved in the process. Once they fail in approaching it at the very beginning, they may harbor an abhorrent attitude toward any other language, which goes against the initial purpose of the language l earning.
   To conclude, I am convinced that starting foreign language learning from the primary school will bring more unrewarding consequences. I propose that they can do it when they have stronger studying ability.

[解析] 1．语言表达
   本文论述先从反面切入，而后从正面详细分析，使论述更客观辩证。多处使用复合句，使语言表达更加严谨。
   ●Personally, I reckon that this proposal will cause more harm other than benefits to children.
   句型Personally, I reckon that this proposal...可用于议论文开头评价一个建议，表明自己的观点。
   ●Scientists substantiate that young kids have already formed the cognitive capability to distinguish the foreign language from their mother tongue, let alone the children over 7 years old.
   用substantiate引用他人观点，使论述更加有说服力；let alone起递进的作用。
   ●Once they fail in approaching it at the very beginning, they may harbor an abhorrent attitude toward any other language, which goes against the initial purpose of the language learning.
   用once来假设一个情境，以表达作者观点；which引导的非限制性定语从句修饰前一句话，表示违背了学习语言的初衷。
   2．逻辑结构
   本文是总分总的结构。作者开篇先陈述事实并表达自己的观点，第二段先从观点的反面切入，分析可能的好处，第三段从正面分析其缺点，使论证更加全面、客观。最后一段作者强调观点并且提出建议。

[范文]
   As a vital component of high school education, community service should always be a part of the whole educational system. Personally, I could not agree more because not only students but also the whole society can benefit a lot from unpaid service.
   Admittedly, unpaid jobs for charity organizations take up some of the valuable time students need to spend on their studies. Namely, in a short term, this activity cannot bring any reward for the study of those participants. However, people should never judge activities with a short-sighted view; instead, long-term perspective becomes more reasonable and smarter. With sufficient social experiences and working skills, students may become more competitive in the job market after graduation.
   Obviously, establishing community service as a mandatory part of high school education is not only helpful for students but also meaningful for the whole society.  Firstly, both text-based and society-based methods make up the whole structure of high school education. Community service perfectly combines both parts in order to accomplish a better outcome for those students because they have the opportunity to put their newly learnt theories, such as theories of social work, into practice. Secondly, throughout these charitable activities, students can work with disabled people, so they are likely to pay more attention to these special groups and understand them better in their daily life. More importantly, it will shape their strong and independent personalities gradually. Namely, offering help to others teaches the young to understand and support each other in the community.
   In summary, it is a must to add community service to the compulsory education, especially in high schools. Through such service, students can gain both social experiences and working skills that will contribute to their competence. In addition, it is also meaningful for the whole society because students know more about and understand the society better.

[解析] 1．语言表达
   本文论述先从反面切入，而后从正面详细分析，使论述更客观辩证。语言表达流畅，一系列连接词如personally, admittedly, however, instead, more importantly使行文更加连贯。
   ●Admittedly, unpaid jobs for charity organizations take up some of the valuable time students need to spend on their studies. Namely, in a short term, this activity cannot bring any reward for the study of those participants.
   Admittedly...可用于论述时表明让步，Namely...可用于解释论据。
   ●In summary, it is a must to add community service to the compulsory education, especially in high schools.
   句型In sum...用于议论文结尾总结观点。
   2．逻辑结构
   本文是总分总的结构。作者开篇先陈述事实并表达自己的观点，第二段先从反面切入，而后从正面分析，第三段进一步正面论述作者观点，使论证更加客观辩证。最后一段作者总结前文论述，重申观点。

[范文]
   A problem of modem societies is the declining level of health in the general population. One possible solution is to provide more sports facilities to encourage a more active lifestyle. However, there are some people who doubt whether this solution would have a positive effect. I think that the outcome of such a practice may not be as good as some people believe.
   Advocates of this solution believe that increasing the number of sports facilities is the best way to improve the well-being of people. First of all, nowadays people have to devote more time and energy to their careers and therefore they are too busy to spare time for physical exercises. If there were easy-to-reach local sports facilities, they would be more likely to take part in physical activities regularly. Another reason is that today's sedentary lifestyle means that physical activity is no longer part of people's leisure time. With the offering of more sports facilities, doing a variety of sports would be much more attractive than just sitting in front of a screen every evening.
   However, there are some reasons why this solution may have little effect. In the first place, interest in sports is not universal, and additional facilities might simply attract those who are already fit, not those who need them badly. What we should do is help children develop a positive attitude to exercise at an early age. In the second place, there may be better ways of tackling this problem. For example, greater tax penalties could be imposed on high-fat food products, tobacco and alcohol, as excessive consumption of any of these contributes to poor health. Even improving the public transport would help because it takes a longer time to walk to the bus stop than to the car.
   In my opinion, increasing the number of sports facilities may not have the desired results. People should be encouraged to form the habit of doing regular physical exercises when they are young. In addition, better approaches such as earlier education in fitness awareness may assist in improving people's health.

[解析] 1．语言表达
   本文只用了少数的复杂句，语言简洁明了，清晰地表达了作者观点。however, first of all, in the first place, for example, in addition等连接词使文章更加连贯流畅。
   ●Another reason is that today's sedentary lifestyle means that physical activity is no longer part of people's leisure time. With the offering of more sports facilities, doing a variety of sports would be much more attractive than just sitting in front of a screen every evening.
   Another reason is that...可用于议论文中摆出第二个论据。
   ●However, there are some reasons why this solution may have little effect.
   句型However, there are some reasons why...可用于议论文中从观点的正面过渡到反面进行论述。
   ●For example, greater tax penalties could be imposed on high-fat food products, tobacco and alcohol, as excessive consumption of any of these contributes to poor health.
   用For example...可引出具体事例论证观点。
   2．逻辑结构
   本文是总分总的结构。作者开篇先陈述事实并表达自己的观点，第二段分析支持者的观点，第三段分析反对者的看法，使论证更加客观辩证。最后一段作者总结前文论述，重申观点。

[范文]
   It has been reported that several minority languages become extinct each year. However, some people are indifferent to this phenomenon, holding that it can reduce the barrier between people from different cultures. From my point of this view, the negative effects of this trend far outweigh the convenience that it may bring.
   Admittedly, the reduction in the number of languages may bring the world closer, which will result in the assimilation of different cultures. Though traditional languages have died out with old generations passing away, economic progress has been attained, which has narrowed the gap between industrialized and developing countries and improved people's living standards. Globalization has embraced the whole world together and helped countries to take full advantage of capital and technology.
   From my way of thinking, however, the disappearing of minority languages is a great loss for all human beings. Language, as a kind of precious heritage, was created and improved by older generations. It is an invaluable fortune passed down from ancestors. Languages are more than their definition, and they are parts of our culture. Various languages have specific discourse systems, which involve thinking, expression and even every aspect of life. If a minority language dies out, the culture behind this language may die out as well, especially for those cultures which do not have other kinds of existences such as buildings but have only language.
   Moreover, languages are parts of soft power, which is becoming increasingly important in global competition for a country. A nation without its own language is like a tree living without roots. Thus those small countries speaking disappearing minority languages are likely to be forgotten. Only countries possessing enormous power both in economy and culture can convince the world that it is a nation with outstanding competence.
   In conclusion, a language, no matter how few its speakers are, is an invaluable cultural heritage for human beings. Therefore, we should cherish this wealth, protect language diversity and carry all languages down from generation to generation.

[解析] 1．语言表达
   本文先从反面让步后从正面论述观点，从论证手法上来说，就非常客观和辩证。本文以简单句为主，语言简洁明了，清晰地表达了作者观点。第二、三、四、五段都有标志性的词组from my way of thinking，moreover, in conclusion，文章逻辑结构清晰。
   ●From my point of this view, the negative effects of this trend far outweigh the convenience that it may bring.
   From my point of view...可用于议论文开头表明观点。
   ●Admittedly, the reduction in the number of languages may bring the world closer, which will result in the assimilation of different cultures.
   可用Admittedly...用于从反面让步。
   2．逻辑结构
   本文是总分总的结构。作者开篇先陈述事实并表达自己的观点，认为语言减少弊大于利。第二段从反面进行让步，第三、四段从两个方面正面支持了自身观点。最后一段作者总结前文论述，强调观点。