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第二十五單元 如何用定義與分類法推展篇章

25．1 Definition and Classification（定義與分類）

A writer often employs more than one method of development in an essay．In order to make it easier or clearer for the reader，the author may，for instance，decide to classify objects，events or terms by retaining a few classes rather than many specific items．Additionally，he may need to define the lables he uses in classifying the subject，especially if the lables are not widely known or are abstract．

在進(jìn)行定義或分類寫作時(shí)需注意：1）在進(jìn)行詮釋（定義）時(shí)，一定要具體、確切；2）分類時(shí)要周密，標(biāo)準(zhǔn)必須對(duì)應(yīng)劃一，不能交錯(cuò)重疊。

Model Essay 25-1

Nowadays，more and more people have books in their homes，but few of them really ‘own’the books．In Professor Adler's opinion，there are three kinds of book owners．The first kind of owners have all the standard sets and best-sellers-books that are sold in very large numbers—unread，untouched．（These owner sown only wood pulp and ink，not books．）

Another kind of book owners have a great many books—a few of them read through，most of them dipped into，that is，most ofthe books are only read or studied for a short time or without much attention；but all of them as clean and shiny as the day they were bought．（These persons would probably like to make books their own，but are restrained by a false respect for their physical appearance．）

The final kind of book owners，however，have a few books or many，every one of them do geared（having the corners of the pages bent down with use，like a dog's ears） and dilapidated（broken and old，falling to pieces），shaken and loosened by continual use，marked and scribbled in from front to back．（These men really own books．）

Do you agree with Pr of．Adler？

25．2 Analysis of the Model Essay（范文分析）

In the above model essay，according to the writer，book owners can be divided into three kinds．They are as follows：

1）Owners with all standard sets and best-sellers—unread，untouched；

2）Owners with a great many books，a few of them read through，most off them dipped into；

3）Owners with a few books or many，every one of them do geared，dilapidated，shaken and loosened…

根據(jù)范例所示，我們得知作者將有書的人劃為三類，其分類根據(jù)是劃一的，分出的三類book owners互相排除，沒有重疊。作者還通過使用“the first kind…another kind…the final kind…”等這些轉(zhuǎn)換詞語，有機(jī)地圍繞主題“There are three kinds of book owners”，介紹了三種不同類型的“owners”。此外，作者還將一些讀者不知或概念不清的詞、詞組，如“bestsellers”，“dipped into”，“do geared”，“dilapidated”等下了定義，這便達(dá)到了使讀者完全領(lǐng)會(huì)其意的目的。

Writing Assignment for Unit 25

Directions：Write a 3-paragraph essay according to the given information below about “Kinds of Library Materials Found in Most Good Libraries”by using the techniques taught in this unit．Do remember to define some of the unknown words．

1）books（on all subjects，in different languages，organized in the card catalog，which can be checked out and borrowed for a month）

2）reference works（including encyclopedias，dictionaries，bibliographies，atlases，which can only be used in the library itself）

3）periodcals（including magazines，newspapers，pamphlets，which cannot be removed from the library）

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