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信息给予题题型新颖、构思巧妙、联系面广,富于灵活性和创造性,能较好地反映同学们对信息的提取、加工、处理以及解决新问题的能力.信息给予题按其基本属性可分成以下六种,现举例分析.一、机械性信息给予题例1我国已大面积推广使用合格碘盐,即在食盐中添加少量碘酸钾(KIO3).在碘酸钾中,碘元素的化合价是().A.+1 B.+3 C.+5 D.+7分析本题考查化合物中某一元素化合价的求算,并让学生在读题过程中了解一些科学知识.
The information given to the topic is novel, cleverly conceived, with a wide range of contacts, flexibility and creativity, which can better reflect the students’ ability to extract, process, process and solve new problems. Can be divided into the following six, are an example of analysis .One, the mechanical information to give a case 1 China has promoted the use of a large area of qualified iodized salt, that salt in a small amount of potassium iodate (KIO3) .In potassium iodate, iodine Of the valence is (). A + 1 B. +3 C. +5 D. +7 Analysis of the title examinations of a compound valence calculation, and allow students to understand some scientific knowledge in the reading process.