英语教辅资料专题6 第3讲.ppt

第二部分　专题突破 高考二轮专题析与练 · 英语 返回导航 专 题 突 破 第 二 部 分 专题六　书面表达 第3讲　说明文 一般说来，事物说明文就是对具体事物进行说明或介绍，使读者了解和认识事物的特征，透过现象认识本质。其基本特点是：层次清晰，条理分明，语言简洁而逻辑性强。要“明明白白”地写好一篇事物说明文，准确地传递作者想要说明的信息，在写作中要注意以下几点： 1．明确写作重点，突出语言特色：在写作时要抓住写作对象的本质或主要特征，选用准确、简明的语言，精当地对其说明。有时为了把文章写得通俗易懂、生动活泼可以根据需要运用打比方、类比等修辞手段。 2．选好说明顺序，用好说明方法：根据说明对象的不同灵活安排，运用时间、空间、逻辑等写作顺序，力求做到解说清楚、条理分明。另外，根据实际需要合理使用说明方法，突出说明对象的特征，努力达到“复杂事物简单化、抽象事物直观化、枯燥事物生动化”的效果。在写作中可灵活选用下定义、例证法、分类法、比较法、因果分析法、列数字、打比方等说明方法。 一、表示原因 There are three reasons for this. The reasons for this are as follows. The reason for this is obvious. The reason for this is not far to seek. The reason for this is that… We have good reason to believe that… 二、表示好处 It has the following advantages. It does us a lot of good. It benefits us quite a lot. It is beneficial to us. It is of great benefit to us. 三、表示坏处 It has more disadvantages than advantages. It does us much harm. It is harmful to us. 四、表示重要、必要等 It is important(necessary, difficult, convenient, possible)for sb.to do sth. We think it necessary to do sth. It plays an important role in our life. 五、表示措施 We should take some effective measures. We should try our best to overcome(conquer)the difficulties. We should do our utmost in doing sth. We should solve the problems that we are confronted (faced) with. 六、表示变化 Some changes have taken place in the past five years. A great change will certainly be produced in the worlds communications. The computer has brought about great changes in education. 七、表示事实、现状 We cannot ignore the fact that… No one can deny the fact that… There is no denying the fact that… This is a phenomenon that many people are interested in… However，thats not the case. 八、表示比较 Compared A with B… I prefer to read rather than watch TV. There is a striking contrast between them. 九、表示数量的增加或减少 It has increased (decreased) from…to… The population in this city has now increased (decreased) to 800,000. The output of July in this factory increased by 15% compared with that of January. 十、表示看法 People have (t