比較說明:我們班的一對孿生姐妹-Twin Sisters in Our Clas.

　　Twin Sisters in Our Class

　　Li Bao and Li Bei are twin sisters in our class. They look very much alike. But they are different in character. The former is an introversive①girl; the latter extroversive②in doing things. In spite of this, they have many same points.

　　The two are good at studies. They come, to school early every day. Before classes they read English or Chinese texts and often recite good articles or poems. In the classes they listen to the teachers attentively.

　　When the teachers ask questions, they are always active in answering them. After school they carefully do their homework. If they are not clear of something they ask the teachers or classmates for help. They never let off any problems that they do not understand. So they always achieve excellent marks in examinations.

　　They both like to help others. On the buses they offer their seats to the old. In the streets they support the blind across the roads. At home they help the parents with housework. In the school they like to do something for the teachers and schoolmates. Once Mr. Liu moved his house,the twin sisters carried what they could for the teacher till late in the evening. Last term I caught a bad cold and stayed in hospital. Li Bao and Li Bei delivered the meals from my home to the hospital in turn. Because of these they are praised by everybody in our school.

　　Both of them have a preference for③ singing and dancing. After classes in the afternoons they often take part in singing and dancing activities. So they both sing beautifully and dance well. When there is a partv held in our school they are certainly actresses. As soon as their performances come to an end, people would respond with warm applause. Whenever a classmate holds a birthday party the twin sisters must be invited to give performances. And they both never refuse to be present. Of course they would sing sweet songs or offer fine dances.

　　Those are the same points the two sisters share. Do you think that they are twins worthy of the name?

　　【詞語解釋】

　　①introversive[?intr u＇v :siv] adj．內(nèi)向的

　　②extroversive [ekstr＇v :siv] adj．外向的

　　③have a preference[＇pref r ns] for偏愛……，特別喜愛……

　　【寫法指要】

　　這是一篇比較型說明文，即談?wù)搩蓚�人或事物的相同點的文章。寫這種文章時，在引言段要首先指出二者的不同點，然后將篇題落在二者的相同點上。這樣，在擴充段中分別具體詳細(xì)地說明二者的相同點。本文的篇題句是“… they have many same points.”。三個擴充段的主題句都是段落開頭的第一個句子。

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