推荐回答(6个)
其实无论是物理还是化学,到了初三后期,你会觉得做过的题都是重复的,根本没有新意。物理:我建议你把两本教科书拿出来,翻公式,背好。因为考试中,物理大题公式一般有一到二分,就算题一点不会这个分也可以拿到。而其你说可以拿到20-30分,有的基础题你还是可以的,我不知道你有没有错题本,没有的话借一本,然后有选择的把你认为很重要的典型题弄懂弄透,没事就去老师办公室,去烦他,这个时期,只要你有上进心,老师不会不理你,就算脸色不好,也不要管他。找两套中考的中上档难度的卷子做,无论哪道题,必须弄懂,不懂就问,然后把你答得擦掉,重答,这一次必须拿到120分。这样的话,会对你有一定启发。我想你在短时期内及格应该不是问题。化学:其实化学是中考送分的学科,一张卷纸如果我没记错的话,会涉及到20个左右的方程式,而初中所有的方程式全是书上的,当然,类比的都要会,比如说,书上给了Fe和稀硫酸的反应方程式,那么AI、Zn……与稀硫酸的反应你都要记住,还有各个反应所涉及到的颜色变化要找老师或同学笔记查一下,这个做推断题必考。一个方程式值2分。相比较于物理,化学要提高的快,我建议你以化学为主,物理为辅的的复习方式进行复习,毕竟你是要多拿分,而化学只需要背的好,60分不是问题。你们应该发考试大纲了吧,如果不知道从那下手,就看那个,一条条看,觉得那条不会就翻全解全部看一遍,会的越多越好呗。一张卷子会有难度划分的,你应该能感觉得到,基础题一般要占到6-7的比例,这个比例就是及格分,你现在时间不多,争取保基础。考试的时候不要太紧张,对多那份没好处。愿你的努力会有成果
1、化学基础知识掌握不扎实。在为数不多的几个方程式中,反应方程式的书写不到位,化学式书写错误,缺少条件,未写气体符号和沉淀符号等情况相当普遍。对一些基本的实验操作仍存在问题。
2、化学用语表达不规范。如:元素符号的大小写字母书写问题,错字、别字严重,例如把“量筒”写成“量桐”或“量桶”;物质的化学式不能正确的判断和书写;化学计算格式不规范等。
3、科学探究能力不强。试题着重考查了学生的实验探究和分析能力、实验评价的能力、获取和处理信息的能力、表达能力等。解题中反映出学生不能正确分析、获取与处理试题所给出的信息。
会考考查70%是简单题,20%中档题,只有10%是难题,基本上每个章节都有考查的知识点,从元素-化合价-化学式-化学方程式-离子方程式-计算等等知识点都是连带关系的,离子共存问题记住不能和氢离子、氢氧根和特殊的几项就OK了,一般会考难度都不大,摩尔质量单位是g/mol,数值等于相对原子或者相对分子质量,如果物质一旦确定,那么摩尔质量的数值就是确定的,根据公式进行计算就OK了,颜色问题其实非常容易,老师肯定发过相关的资料记住即可,还有就是方程式一定要记牢,特别金属部分方程式一定要牢记,非常重要,祝好运!
把历年会考卷都做一遍,把错题搞懂,再做今年的模拟卷,过关应该没问题吧。
首先摆正心态,静下心来,一个知识点一个知识点的攻破,只要坚持下来,你会发现化学h是这么简单
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