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记叙文以情感人,形象性是它的主要特点;议论文以理服人,哲理性是它的主要特点;说明文以知识喻人,知识性是它的主要特点。科技说明文作为说明文的一种,在历年的高考中占有较重要的位置。这些文章所涉及的内容对学生来说是比较新的和比较陌生的,大都是某些领域的最新研究动向,是人们在学习深入到一定阶段必然要接触到的知识。根据写作目的与读者对象分类,科技说明文可以分为专业性科技文和普及性科技文。专业性科技文包括科技论文与科技动态或成果报道;普及性科技文包括一般科普文和文艺性科技说明文。从高考试卷中的科技文选材来看,多为反映当代科技发展前沿成果或某些领域里的新发现的文章。本期“美文展厅”就为广大高中生选择了五篇普及性科技文,希望通过作者的解读,来帮助您提高阅读理解能力、筛选整合信息能力和综合分析与判断的能力等。——本期主持人黄书满
Narrative texts are emotional people, and image is its main characteristics; argumentation is to convince people with reason, philosophicness is its main characteristics; description texts use knowledge to describe people, and knowledge is its main characteristics. As a kind of expository text, science and technology expository occupies a more important position in the college entrance examination over the years. The content of these articles is relatively new and relatively unfamiliar to students. Most of them are the latest research trends in certain fields and are the knowledge that people must be exposed to in order to reach a certain stage. According to the purpose of writing and the classification of readers, scientific explanations can be divided into professional scientific texts and popular science and technology texts. Professional science and technology texts include scientific papers and scientific and technological developments or results reports; popular science and technology texts include general science and literary texts. Judging from the selection of scientific and technical texts in the high test papers, they are mostly articles that reflect the frontier achievements of contemporary science and technology or new discoveries in certain fields. In this issue, the “Meiwen Exhibition Hall” has selected five popular science and technology articles for high school students, and hopes to help you improve your reading comprehension ability, the ability to screen and integrate information, and the ability to comprehensively analyze and judge through the interpretation of the author. - Present host Huang Shuman