第二十三單元 如何用舉例法推展篇章
根據不同的寫作目的，篇章寫作一般分為四種主要類型：
1）Narration（敘述文）
2）Description（描寫文）
3）Exposition（說明文）
4）Persuasion and argumentation（議論文）
從本單元起，我們將著重介紹在大學英語四級統考中應用得最為廣泛的說明文。說明文常用于闡述事物的特征、本質、性能、結構、用途等。抽象的說明是很難讓人理解和接受的，所以在進行說明時我們常用舉例法、比較與對照法、定義與分類法、過程分析法和因果法等寫作方法推展段落和篇章。這些方法均已在段落推展法之四、五、六、七、八、九中一一做了介紹。以下我們將在第二十三、二十四、二十五、二十六及二十七單元中分別用這些方法對篇章的推展作進一步的討論。
另外，在今后的各單元中，我們將盡量少用漢語，以便使大家養成用英語思維的良好習慣。
23．1 舉例法Examples
在篇章寫作中，我們常用實例來對自己的觀點或文章的主題思想進行說明、解釋，使抽象、難解的事物具體化。這不僅有助于讀者感受到我們的觀點，而且可使文章讀起來生動、有趣。切記：舉例時一定要典型，能為文章的主題思想服務；而且還要生動、有趣，給人以深刻印象。
23．2 Comparison of Two Model Essays（兩例范文的比較）
1）My Bad-Tempered Father
My father is easily angered by normal，everyday mistake．One day my father told me to wash the car and cut the grass．I did not hear exactly what he said，and so I asked him to repeat it．Then he went into a hysterical mood and shouted，“Can't you hear？”
Another time he asked my mother to go to the store and buy groceries with a fifty-dollar bill，and told her to spend no more than twenty dollars．She spent twenty-two dollars．As soon as he found out，he immediately grabbed the change from her and shouted that she was never to do any errands for him again．He did not speak to her for the rest of the day．
My father also gives my older brothers a hard time with his irritable moods．One day，he told them to be home from their dates by midnight；they came home at 12∶15．He informed them that they were grounded for three weeks．
To my father，making a simple mistake is like commiting a severe crime．
2）My Generous Grandfather
My grandfather is the most generous person I know．He has given up a life of his own in order to give his grandchildren everything they want．Not only has he given up many years of his life to raise his children properly，but he is now sacrificing many more years to his grandchildren．
His generosity is also evident in his relationship with his colleagues，neighbors and friends．He has been responsible for many good deeds and has always been there to help all the people around him in times of trouble．Everyone knows that he will gladly lend a helping hand．
He is so generous that you almost have to feel sorry for him．If one day he suddenly became selfish，it would be earthshaking．That's my grandfather．
23．3 Analysis of the Two Model Essays（兩例范文的分析）
The first passage is more effective，for it offers specific examples that show us the father in action．We see for ourselves why the writer describes the father as bad-tempered．It also uses transitional phrases or sentence to organize the passange more clearly and logically．Using“one day”，the writer introduces us the first example of his father's hot temper；“Another time”indicates the second example and the transitional sentence“My father also gives my older brothers a hard time with his irritable moods”indicates another example will follow．It is the supporting examples and the transitional devices that make the passage more effective and coherent．
The second writer，on the other hand，gives us no specific evidence．The writer tells us repeatedly that the grandfather is generous but never shows us examples of that generosity．Just how，for instance，did the grandfather sacrifice his life for his children and grandchildren？Did the grandfather hold two jobs so that his soncould go to college，or so that his daughter could finish her education？Does he give up time with his wife and friends to travel every day to his daughter's house to baby sit，go to the store，and help with the dishes？We need to judge for ourselves whether the writer is making a valid point about the grandfather，but with out specific details we cannot do so．In fact，we have almost no picture of the grandfather at all．
Writing Assignment for Unit 23
Directions：Write a short passage of the title“My Sweet-Tempered Mother according to the given topic sentence．
Remember to provide specific details to illustrate your point and use transitional words or phrases to make your writing more clearly and coherently．You may write your passage on the good qualities of a person by using some of the descriptive words listed below．They are only suggestions，you can write about other qualities as well．
honest hardworking supportive modest
open-minded considerate independent good-humoured
cooperative energetic disciplined patient
generous trustworthy neat courageous
ambitious soft-hearted reliable unpretentious
My mother is the most sweet-tempered person I know．
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