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五、对比法
对比法是指通过叙述或描述两种或两种以上的相关事物之间的相同(相似)的地方或不同之处来表达主题。采用对比法展开段落主要通过两种途径:一是先叙述对比双方的一个方面的全部细节,然后再叙述另一个方面的全部细节;另一个途径是对逐个问题进行双方面的比较。
请看下面各例:
Why do so many graduates gravitate into business instead of into teaching? Part of the reason is the everwidening pay gap between these two professions. A secretary, an office clerk or a bank employee can earn monthly income as high as RMB 2,000, and when one is promoted to the position of a business executive or manager, the salary is even higher. But a college graduate with a masters degree can only get a salary of RMB 1,000 per month for his teaching job. No wonder, college graduates are attracted into more lucrative(赚钱的,有利润的) fields.
本段的主题是为什么那么多的大学毕业生从商,而不从事教学工作。作者运用对比法,说明由于两种职业之间存在着越来越大的收入差异,所以有好多学生毕业后选择从商,而不选择从教。
A single spark can start a prairie fire.——星星之火,可以燎原。There are striking similarities between two of the most popular U.S. presidents, Abraham Lincoln and John F. Kennedy. Both men had their elections legally challenged. Lincoln and Kennedy are both remembered for their sense of humor, as well as for their interest in civil rights. Lincolns secretary was Mrs. Kennedy; Kennedys secretary was Mrs. Lincoln. Neither man took the advice of his secretary not to make a public appearance on the day on which he was assassinated. Lincoln and Kennedy were both killed on Friday in the presence of their wives. And finally, the same caisson(弹药车) carried the bodies of both men in their funeral processions.
本段采用对比法通过第一种途径展开段落。这里,作者将美国历史上两位伟大的总统林肯与肯尼迪从六个方面作了比较,描述他们的相似之处。
六、分类法
分类法是按一定标准对事物进行归类的一种段落发展方法。通过分类,可以使文章脉络一目了然。例如:
Astronomers have been able to classify stars according to color. They have discovered that stars with different colors have different sizes, and their surface temperatures are also different. The larger a star is, the higher surface temperature it has. Stars are generally divided into five kinds: blue, white, yellow, orange and red. Blue stars are the largest ones, with a diameter of 16,000,000 kilometers. Their surface temperature is also the hottest, as high as 25,000 degrees centigrade. White stars come next, whose diameter is 2,700,000 kilometers and whose surface temperature is 11,000 degrees centigrade. Then there are yellow stars, 1,600,000 in diameter and 6,000 degrees centigrade in surface temperature. Orange stars are still smaller. They have a diameter of 1,000,000 kilometers and a surface temperature of 5,000 degrees centigrade. The smallest kind of stars appears red in color. Their diameter is only onetwentieth of that of blue stars, that is, 800,000 kilometers, and their surface temperature is only 3,000 degrees centigrade. 本新闻共 6页,当前在第 3页 1 2 3 4 5 6
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