段落发展手段及结尾段写法
　　在上一讲我们讲了主题句，推展句写法；这一讲我们要进一步来谈一谈段落发展几种手段以及结尾段写法。段落发展几种手段：

　　1、列举法（details）
　　作者运用列举法，是通过列举一系列论据对topic sentence中摆出论点进行广泛、全面地陈述或解释，列举顺序可以按照所列各点内容相对重要性、时间、空间等进行。

　　Yesterday as one of those aful days for me hen everything I did ent rong. First, I didn't hear my alarm clock and arrived late for ork. Then, I didn't read my diary properly and forgot to get to an important meeting ith my boss. During the coffee break, I dropped my coffee cup and spoilt my ne skirt. At lunch time, I left my purse on a bus and lost all the money that as in it. After lunch, my boss as angry because I hadn't gone to the meeting. Then I didn't notice a sign on a door that said "et Paint" and so I spoilt my jacket too. hen I got home I couldn't get into my flat because I had left my key in my office. So I broke a indo to get in and cut my hand.
　　根据本段主题句中关键词组everything I did ent rong，作者列举了8点内容，分别由first, then, during the coffee break, after lunch time等连接词语引出，使得该文条理清楚、脉络分明、内容连贯。常用于列举法过渡连接词有：for one thing , for another, finally, besides, moreover, one another , still another, first, second, also等。

　　2、举例法（example）
　　作者通过举出具体事例来阐述、说明主题句内容，严格地讲，举例法也是列举法一种，它们区别在于：列举法侧重罗列事实，所列事实力求全面；而举例法侧重通过举出典型事例来解释作者观点，且事例可多可少。我们来看下面这个用举例法展开段落。

　　There are many different forms of exercises to suit different tastes. For example, those ho enjoy competitive sports may take up ball games. For another example, if they prefer to exercise alone, they can have a run or take a alk in the morning or in the evening. Besides, people can go simming in the summer and go skating in the inter. In short, no matter hat their interests are, people can alays find more than one sports that are suitable to them.

　　本段采用了三个事例来说明主题句中关键词组different forms of exercises，这三个例子分别由连接词for example, for another example 和 besides引出，最后由引导结尾句总结全段内容。举例法中常用连接词有：for example（instance）, one example is, besides, furthermore, moreover, in addition等。

　　3、叙述法（narration）
　　叙述法发展段落主要是按照事物本身时间或空间排列顺序，通过对一些特有过渡连接词使用，有层次分步骤地表达主题句一种写作手段。用这种方法展开段落，作者能够清楚连贯地交待事物本末，从而可以使读者可以清晰、完整地理解文章含义，例如：

　　In the flat opposite, a oman heard the noise outside. hen she looked out through the indo, she discovered that her neighbor as threatened by someone. She immediately called the police station. In anser to the call, a patrol police car arrived at the scene of the crime quickly. Three policemen ent inside the flat at once, and others guarded outside the building to prevent anyone from escaping.

　　这段是按照事物发展先后顺序，叙述从发现案情、报警、到警察赶到、包围现场过程。全文脉络清晰，叙述层次感强，结构紧凑。常用于叙述法中过渡连接词有：first, an the beginning, to start ith, after that, later, then, afterards, in the end, finally等。

　　4、对比法或比较法（comparison & contrast）
　　将同类事物按照某种特定规则进行比较分析是一种常用思维方法。通过对比，更容易阐述所述对象之间异同和优缺点，例如：
　　The heart of an electronic computer lies in its vacuum tubes, or transistors. Its electronic circuits ork a thousand times faster than the nicer cells in the human brain. A problem that might take a human being a long time to solve can be solved by a computer in one minute.
　　在这段文字上，作者为了突出电子计算机运行速度之快，首先将它与人脑进行了比较，“-- a thousand times faster than --”；而后，又将这一概念具体到了“a problem”上，通过对比使读者从“-- a long time -- in one minute”上有更加直观认识。
常用于对本法或比较法上过渡连接词有：than, compared ith等。

　　5、分类法（classification）
　　在阐述某一概念段落中，常用分类法。通过对概念中所包括事物进行分门别类，分别加以叙述，使读者有更为清晰认识，如：
　　Ever since humans have lived on the earth, they have made use of various forms of communication. Generally

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