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一、教学目的的确定一篇好的说明文,不仅要注意说明的科学性,能准确地向读者介绍有关知识,而且要注意说明的生动性,使读者饶有兴味地阅读。不少优秀的说明文,还能在知识传授的同时,对读者进行思想教育。说明文《死海不死》就具备以上这几个特点。例如,在介绍死海的特征和形成过程时,课文从揭示“死”与“不死”这一对看似矛盾的概念的涵义入手,除列举了数字、事例加以说明外,还穿插了大段的神话传说,这样,原本并无情节又不动人的科学知识,就可以使读者兴趣盎然,爱不释手。教学本文,就应让学生理解; (一)说明事物,除只抓住其特征外,还应选择吸引读者的“突破口”,抓住读者的阅读心理; (二)神话传说,不少都无案可稽,但在说明文中若能运用得当,却有助于科学的说明; (三)运用数字,是说明的常见方法,但运用中,应掌握严密的科学性。以上三点,既是本课文的特色,又是学生应当而且可以理解的说明方法。教学中,当视为重点。二、疑难字词句补说
First, determine the purpose of teaching A good explanatory text, not only to note the scientific nature of the description, can accurately introduce the reader to the relevant knowledge, but also pay attention to the vividness of the description, so that the reader read with great interest. Many excellent explanatory texts can also provide ideological education to readers while imparting knowledge. Explain that the “Dead Sea of Death” has these characteristics. For example, in introducing the characteristics and formation process of the Dead Sea, the text starts by revealing the meaning of the seemingly contradictory concept of “death” and “immortality”. Apart from enumerating numbers and examples, it also intersperses a large section of Myths and legends, like this, there is no plot and no moving scientific knowledge, you can make readers full of interest, can not put it down. In teaching this article, students should be understood; (1) To explain things, in addition to only grasping their characteristics, they should also choose to “broke a breakthrough” that attracts readers and capture the reading psychology of readers; (2) Many myths and legends are absent. The case is accommodating, but if it can be used properly in the explanatory text, it will help to explain it scientifically. (C) The use of numbers is a common method of explanation, but in application, it should be closely scientific. The above three points are not only the characteristics of this text, but also the instructions that students should and can understand. In teaching, it should be regarded as an important point. Second, difficult words and sentences