第一講：4種形式考查對主旨大意的把握

　　3 文章的寫作目的

　　解題技巧：

　　寫作目的是文章的主旨。任何文章都有一個寫作目的。如果說文章的主題是客觀地存在與文章中的，那么文章的寫作目的則代郵明顯的作者的主觀色彩。判斷寫作目的，必須弄清楚作者對于文章主題(人或事物)的態度。

　　Exercise is one of the few factors with a positive role in long-term maintenance of body weight. Unfortunately, that message has not gotten through to the average American, who would rather try switching to “light” beer and low-calorie bread than increase physical exertion. The Centers for Disease Control, for example, found that less than one-fourth of overweight adults who were trying to shed pounds said they were combining exercise with their diet.

　　In rejecting exercise, some people may be discouraged too much by caloric-expenditure charts: for example, one would have to briskly walk three miles just to work off the 275 calories in one delicious Danish pastry(小甜餅). Even exercise professionals concede half a point here. “Exercise by itself is a very tough way to lose weight,” says York Onnen, program director of the President’s Council on Physical Fitness and Sports.

　　Still, exercise’s supporting role in weight reduction is vital. A study at the Boston University Medical Center of overweight police officers and other public employees confirmed that those who dieted without exercise regained almost all their old weight, while those who worked exercise into their daily routine maintained their new weight.

　　If you have been sedentary and decide to start walking one mile a day, the added exercise could burn an extra 100 calories daily. In a year’s time, assuming no increase in food intake, you could lose ten pounds. By increasing the distance of your walks gradually and making other dietary adjustments, you may lose even more weight.

　　Q: What is the author’s purpose in writing this article?

　　A. To justify the study of the Boston University Medical Center.

　　B. To stress the importance of maintaining proper weight.

　　C. To support the statement made by York Onnen.

　　D. To show the most effective way to lose weight.

　　【解析】選D。文章第一句是全文的主題句：鍛煉是長期保持合理體重的少數幾個有效手段之一。后面講了人們對于這一點的無知。第二段講不進行鍛煉減肥的人的效果并不好。最后一段說鍛煉其實很簡單，走路就可以達到目的。所以文章的寫作目的是D“介紹最有效的減肥方法。”

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