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巧解框图题实验题

2021-06-19 11:01 未知

  Centered on the syllabus and teaching materials,Checking for omissions: according to the characteristics of the discipline of science and comprehensive chemistry,Students tend to fall into a misunderstanding in the second round of review: the more questions they can do, the better.actually not,No matter what the problem,They are all derived from textbooks and syllabuses,The question types may be different,But the knowledge points are the same or similar.Therefore, when students do the questions,You should carefully analyze the questions you have seen before,Which knowledge points are being tested,Where is it in the textbook?Have you done this knowledge point before,Where is the error?Do exercises with the mentality of finding missing points,Review textbooks,Understand the syllabus,Only in this way can a knowledge network be formed,Make the basic knowledge more solid and effective.

  Be sure to standardize when doing the questions,Don't be careless: when doing the question,Some students don't care about the regulatory requirements,Many details are omitted,I thought I could pay attention in the college entrance examination,But in the real exams, I still miss out.So we need to start from the usual,According to the teacher's training method,To form a conditioned reflex,Conduct standardized training.

  Starting from the textbook to find a breakthrough,Cleverly solve block diagram questions and experimental questions: block diagram questions: inference questions about element compounds in the second volume (or called block diagram questions),The substances and chemical reaction equations involved,Basically it is in the textbook,So candidates are preparing for the test,To understand the equations in the textbook flexibly and purposefully,For example, from the conditions of the equation, 物质状态 以及反应方程式的形式(即, 一个会产生两种或三种类型),与普通物质的反应和与水的反应被分类。在考虑框图问题时,首先考虑教科书是否有这种反应(根据教科书的顺序或元素周期表的家族编号),如果不, 问题中提供的信息是什么?按照题中信息去分析去解答。

  实验题:需要从教材出发,教材中的演示实验,分组实验中的实验原理,仪器用途,仪器操作,注意事项等,就是目前化学命题必然的引申。应从不同角度出发,把每道题当做新题来理解命题必然。

  记录错误,留做备查:化学科的命题以教材主要尤为明显,希望考生回归教材,将记不住的,经常出现的问题记录在本上,经常反复地翻阅,并不断补充。最后达到见题即能想到可能出现的陷阱的程度,做到理解命题者的本质,规范书写。

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