不要告诉别人class(classification)

⑤分类法（development by classification）分类就是按照事物的某种特质，如：大小、颜色、质地、来源、所在位置、用途等，

⑤分类法（development by classification）分类就是按照事物的某种特质，如：大小、颜色、质地、来源、所在位置、用途等，将其归并成若干类别或范畴在使用分类法拓展段落时，我们一定要切记一点：注意始终保持分类标准的一致性，不能中途变更分类标准。

如：我们通常把住房按性质可以分为以下几种：代管房、自管房、商品房、经济实用房、私房，等有时候，同一事物可以有几种不同的分类方法，而且采用的分类方法不同，得到的结果也完全不一样如：衣服按布料可分为：棉、化纤、麻、毛等；按式样可分类：夹克、西服等；按用途可分为：衬衣、外套、裤子等。

我们绝不能在同一次分类时交替使用不同的分类方法请看下列例子：Ways of CommunicationGenerally speaking, there are three basic ways for us to communicate with others—speaking, writing and body language.

Speaking is the most direct way of communication, and it is the way we use most frequently. Talking with people can make us learn some information about them. It is also a fast and direct way for us to get messages and news about what happens around us. We also talk with our friends and relatives, sharing the love we have for each other.

But sometimes, it is difficult for us to speak out our love because we are too shy. So we can use another way to express our affection for others—that is writing. We write letters to our friends to exchange ideas. We also write to our parents to show our love that we aren’t able to tell them face to face; and we also write to them telling them how we think about some affairs. Writing is indeed an effective way to show our true feeling.

And the unaware but important way of communication is body language. It can show some important information, too. Sometimes, we judge a person just by his/her body language.

In a word, speaking, writing and body language are all important for us to express ourselves. And we use them everyday and everywhere.

本文作者开门见山，首先结合文章主题直接指出人们常用的交际方式有三种：speaking, writing and body language接着运用三个自然段的篇幅逐一进行说明最后一段是对全文的总结我们再看一个例子：

The Students in a ClassAccording to XIE Lihong, the fifteen students of her class fall into three groups.

Seven of them work hard and learn well. They always get good marks in examinations and are often praised by the teachers. XIE Lihong calls them “good students”. The monitor, the secretary of the Youth League Branch, and the captain of the class volleyball team, are quick in finding out what their fellow students are interested in or what they should do as a collective. They always organize proper activities at the proper time, so XIE Lihong calls them “good organizers”. Four other students are very kind to their classmates, always ready to lend them a helping hand. They help to clean the classroom and the corridor even when they are not on duty. XIE Lihong says that they are “good fellows”.

“What about yourself?” someone asks her, “I’m a group by myself—a good observer.”本文作者根据XIe的观点将班上同学分为四类：good students, good organizers，good fellows和good observer。

这种分类方法虽然并不十分科学，但是足可以表达作者本人的意图并且显得很幽默资料来源：李华田主编《四级写作》，新大学英语四、六级考点透视丛书/李华田主编，武汉大学出版社，2006