工作就用美篇工作版","guide_search_desc":"海量模板范文,一键做同款 工作就用美篇工作版","img_beautify_switch":0,"ad_free":0,"text_direction":1,"template":{},"container":{},"redirect":{"redirect_type":1,"img_url":false,"link_url":"/wap/downloadpage/backpage","button_bg_color":false,"button_desc":false,"redirect_desc":false},"edit_date_str":"更新于 2020-01-17","current_time":1743732379,"font_name":"","rcmd_meipian":0,"hide_article_link":0,"from_wechat":false,"topk_keywords":[{"name":"学生","score":0.277749},{"name":"得分","score":0.153038},{"name":"第题","score":0.120028},{"name":"错误","score":0.097773},{"name":"单位","score":0.096881},{"name":"写成","score":0.091609},{"name":"书写","score":0.088921},{"name":"知识","score":0.077697},{"name":"物理","score":0.074609},{"name":"符号","score":0.073139}],"music_name":"","origin_status":0,"password_v2":"","font_id":0,"title_style":"","rich_text_title":"","enable_download":1,"cover_thumb":"https://ss-mpvolc.meipian.me/users/63463039/0971fbf52d8c0c67d3fecdcf575d99d4_crop__jpg.heic","has_video":false,"gift_switch":1,"enable_watermark":0,"content":{"article_id":206852746,"content":[{"source":0,"text":"
2019—2020学年第一学期八年级物 理 期末检测试卷、答案与阅卷反馈
","type":1},{"img_height":662,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/36737243431a384efb3bb550647994b5__jpg.heic","img_width":436,"is_origin":false,"source":0,"type":1},{"img_height":660,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/ce5782ca515564df7b322a63c704f96b__jpg.heic","img_width":444,"is_origin":false,"source":0,"type":1},{"img_height":664,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/33687c6fc73f1fedd826de383145c961__jpg.heic","img_width":438,"is_origin":false,"source":0,"type":1},{"img_height":660,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/c01e6413b5543bcc664b682e0205abba__jpg.heic","img_width":436,"is_origin":false,"source":0,"type":1},{"img_height":722,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/067645ba684936b783618cea74f99381__jpg.heic","img_width":540,"is_origin":false,"source":0,"type":1},{"source":0,"text":"2019-2020年度八年级物理期末检测阅卷反馈
第16题 (一私:许昭辉)
考查内容:1、是光的传播速度和小孔成像的知识。这是光现象知识的基础和该部分知识的应用考察。2、是光速在真空中的传播速度是3.0×108m/s,小孔成像是由于光的直线传播而形成的。
存在问题:1、把声音的传播速度340m/s和光的传播速度混淆,2、空白题的出现率较高,说明学生对该部分知识重视不够,掌握不牢固,需要进一步巩固。3、书写的规范性有待提高。4、学生把折射、反射和直线传播混淆的较多,属于概念不清,知识是掌握的不正确问题。
改进措施:综上分析可知物理学科的基础知识是学好本门课程的基础,基本概念、定义和知识的相关应用需要加强理解和辨别。
","type":1},{"img_height":364,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/c6a6ae220445e0e7cff3565528884186__jpg.heic","img_width":568,"is_origin":false,"source":0,"type":1},{"source":0,"text":"第17题(一私:周通)
考查内容:0摄氏度的规定:标准大气压下冰水混合物的温度。以及100摄氏度的规定:标准大气压下沸水的温度。对于这个知识点是偏向于基础性知识,在老师的印象中这个题应该得到高分,现在4分成绩平均分得到了1.9分,这个分值并不是太高。
存在问题:1、字不会写,好多同学会把“混合物”写成”浑和物”,从而出现问题。还有的同学“混”字就不会写。各种各样的都有。这是平常的老师没有强调字的书写。2、“沸点”,知道什么是100摄氏度,但不知道沸点,如有的人,出现“开水”、“热水”、“正在烧的开水”等等。都出现在试卷上。还是对于考察的东西不理解。有的孩子“沸腾”写成“沸滕”。知道了确实不会写。3、书写问题,有些学生的书写存在极大问题,字体潦草,有些字都得盯着屏幕才能看清甚至看不清。从而导致批卷老师看不清不给分。
","type":1},{"img_height":360,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/9f6c71e37c8c0a6e1ab9ad786d693570__jpg.heic","img_width":662,"is_origin":false,"source":0,"type":1},{"source":0,"text":"18题(附中:刘志华)
得分情况:全市共6337名学生,18题满分6分,最高分6分、最低分0分、平均分4.41分。从学生的得分情况来看,得0分占6.98%,得2分占12.88%,得4分占31.98%,得7分占47.78%。
答题分析:1、三个空分别是质量单位、速度单位、长度单位,质量单位、长度单位学生错误是本单位错误,如应该t,写成kg,应该写cm写成mm等,但第二孔速度学错误较多,许多学生写成长度单位和时间单位,应写成km/h,而学生写成km,迈等,说明学生对速度单位理解较差。2、部分学生书写不标准,如km写成KM,cm写成CM。
改进措施:1、重视基础知识的教学。物理量的符号、单位,尤其是组合单位需要加强如速度和密度单位。2、有针对性的训练学生书写能力,规范学生的书写。
","type":1},{"img_height":686,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/92ebdf30a82e13141e24d865de1b9efc__jpg.heic","img_width":590,"is_origin":false,"source":0,"type":1},{"img_height":438,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/82f5f4db9f340f0bc7da1f1773ffcff1__jpg.heic","img_width":548,"is_origin":false,"source":0,"type":1},{"source":0,"text":"第19题(葛泉:苑永辉)
本次考试第19题主要考查运动和静止的相对性。共有两个空,第一个空要求学生根据骑车速度与风速的关系,来判断三人骑车速度的关系。考生出错原因主要是对相对速度的判断不熟练,这道题也是联系实际生活的一道题,如果考生从实际经验中来考虑,也能很快得出答案。从答题情况看表示速度的符号是v,有好多考生用符号u来表示,也就是学生对物理量的符号容易记混。
第二个空是让学生正确判断风向,参考答案为“南风”考生对南风的表述是多种多样,有的是“向北”还有“由南向北”“从南往北”,也就是学生难以用物理的语言来表达物理现象。这就要求学生平时就养成一个用物理的语言来表达问题的习惯。
","type":1},{"img_height":526,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/63b780d12bd3f7617737e07c2320911b__jpg.heic","img_width":670,"is_origin":false,"source":0,"type":1},{"source":0,"text":"第20题(温家沟:孔书民)
一、题型评价:本题考查了物态变化知识点,试题联系实际生活,能很好的反应学生对物态变化知识点的掌握程度,均分2.02分,从得分情况看,学生整体掌握不太好,因此试题具有一定的梯度。|
二、存在问题
1.很大一部分学生对物态变化知识点理解不到位,不答或一个都不对的或答非所问的有一部分学生。2.错别字特别严重,例如凝华的凝不会写,华写成化的特别多。3.有一大部分学生答案顺序不多。4.字体潦草,似对非对的也较多。
三、今后教学建议
1.教师在教学过程中要夯实学生的基础,不要让学生似懂非懂。2.对于一些特殊的物理名词教师要特别强调,让学生印象深刻。3.物理教学关键还是要让学生理解,注重提高学生的能力。
","type":1},{"img_height":668,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/b5b843c083237808667e6812973a0cfc__jpg.heic","img_width":660,"is_origin":false,"source":0,"type":1},{"source":0,"text":"第21 题(新城:秦力军)
得分情况:本小题共4分,0分比例35.66%,1分比例9.43%,2分比例33.55%,3分比例3.44%,4分比例17.93%。
规范答案:
","type":1},{"img_height":580,"img_size":58,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/405a3f2e784c4d1fb7a4eca358cacb51__jpg.heic","img_width":542,"is_origin":false,"source":0,"type":1},{"source":0,"text":" 21(1)题两种方法都正确,辅助线用虚线,光线用带箭头直线。物体和像的连线与镜面垂直,有垂直符号,像距等于物距。(2)题有法线用虚线表示与界面垂直有垂直符号,两次折射都是空气中角较大,入射光线和最后的折射光线平行。
(1)典型错误一辅助线用实线
","type":1},{"img_height":364,"img_size":38,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/f56a8929934647d8331a069bddce96d3__jpg.heic","img_width":528,"is_origin":false,"source":0,"type":1},{"source":0,"text":"(2)典型错误二没有标出A’
","type":1},{"img_height":170,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/cbd5035a538ff8caa0a927a00f0a1db1__jpg.heic","img_width":482,"is_origin":false,"source":0,"type":1},{"source":0,"text":"(3)典型错误三没有法线
","type":1},{"img_height":172,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/454acbf9bded8459ffdaf09a02fdf137__jpg.heic","img_width":526,"is_origin":false,"source":0,"type":1},{"source":0,"text":"(4)典型错误四法线没有垂直符号
","type":1},{"img_height":184,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/dd2bcb696177784efb1db2c2ffb1049d__jpg.heic","img_width":532,"is_origin":false,"source":0,"type":1},{"source":0,"text":"(5)典型错误五入射光线和最后折射不平行
","type":1},{"img_height":182,"img_size":15,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/f85b69ff1baf705f00a88bf2ca331b1f__jpg.heic","img_width":516,"is_origin":false,"source":0,"type":1},{"source":0,"text":"(6)典型错误六光线没箭头或用虚线
","type":1},{"img_height":174,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/c2cba1799b595f8a24663efd008aa279__jpg.heic","img_width":524,"is_origin":false,"source":0,"type":1},{"source":0,"text":"(7)典型错误七没有认真读题做成光的反射
","type":1},{"img_height":344,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/0b30fb2192394c3b24567614c63beb37__jpg.heic","img_width":492,"is_origin":false,"source":0,"type":1},{"source":0,"text":"(8)典型错误八折射角大小关系弄反
","type":1},{"img_height":182,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/b97595f628d0c48d9d492915cee7e7cf__jpg.heic","img_width":518,"is_origin":false,"source":0,"type":1},{"source":0,"text":"第22 题(高村:姚丽英)
22题是凸透镜成像实验题,通过阅卷看到如下问题:1.学生普遍书写能力差,比如有的倒立写成倒力,有的干脆一个字倒。缩小的缩字写错,高度 的高写成亮字。2.在凸透镜成像实验中,孩子们对物距和相距对比时成像理解不够。3.物距和像距相等是2倍焦距不知道。4.近视镜是什么透镜,对光有什么作用理解不够。
","type":1},{"img_height":744,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/62dda4d5b54146183bf81c660adb9235__jpg.heic","img_width":602,"is_origin":false,"source":0,"type":1},{"source":0,"text":"第23 题(二中:刘乐英)
得分情况:本题满分10分,学生平均分5.16分。
考察内容:天平使用步骤、调节天平横梁平衡方法、密度公式、测量液体密度的方法、误差分析等知识。
典型试卷优秀原因:1、书写清楚。2、表述规范。
典型试卷错误原因:
1、书写不清楚、出现错别字2、表述不规范,公式字母书写不规范,公式错误第三空,体积v不带脚标或质量m把脚标带的靠上变成平方了,密度公式中密度符号书写不规范。3、密度公式没有记准导致误差分析时分析出与正确答案相反的错误结论。4、没有审题没有看空后括号里的答案选项,实验原理步骤理解不到位。5、所答非所问或瞎猜答案。
","type":1},{"img_height":228,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/317f96873bccc8e831a3aba26a1c71bd__jpg.heic","img_width":828,"is_origin":false,"source":0,"type":1},{"img_height":228,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/4fdb54451341b3ba59c99f1d9c1b32f7__jpg.heic","img_width":828,"is_origin":false,"source":0,"type":1},{"img_height":228,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/93696a08ee8f2fdc9f5bb57110f8ea8c__jpg.heic","img_width":828,"is_origin":false,"source":0,"type":1},{"img_height":228,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/2cc1054cba78841011197cbe3824de2c__jpg.heic","img_width":828,"is_origin":false,"source":0,"type":1},{"img_height":228,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/78faed363370ebab1df8ce010662ce07__jpg.heic","img_width":828,"is_origin":false,"source":0,"type":1},{"img_height":228,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/36afbbf1591387399b53c4c82eaadcea__jpg.heic","img_width":828,"is_origin":false,"source":0,"type":1},{"img_height":228,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/c349afe0f719915a458d17bd0041bc86__jpg.heic","img_width":828,"is_origin":false,"source":0,"type":1},{"source":0,"text":"第24题(三中:李想鱼 九中:陈延普)
得分情况:本题满分10分,学全市共6337名学生,24题满分6分,最高分6分、最低分0分、平均分1.2分。从学生的得分情况来看,得0分占59.87%,得6分占3.87%。
一、题型评价:本题考查的是结合列车时刻表速度的计算,分为两问,都是计算平均速度。
二、存在问题:1、基础知识识记不到位,速度的计算公式没有记住或记错。2、时间计算错误,很多学生让离站时间减去离站时间。3、审题不清,如第二问问的是平均速度是多少米/秒,部分学生就写成千米/小时.4、综合计算能力较差,部分学生在解答过程中语言表达不流畅、公式书写不正确、单位不写或遗漏。5、字体潦草,批改试卷时需要去寻找答案。
三、改进措施:
1、教师在教学过程中要重视基础知识的教学,物理量的符号、单位、公式、单位换算等知识应进一步夯实。2、规范学生的答题步骤;有针对性的训练学生的计算能力。3.培养学生的审题理解能力,及应用物理知识分析解答问题的思路和方法,同时也激发学生学习物理的热情,做到学以致用。
","type":1},{"img_height":404,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/0cdaf60eb0b13f52718a7c3021a65da2__jpg.heic","img_width":822,"is_origin":false,"source":0,"type":1},{"img_height":404,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/907b8e02eabc279aa152f96b208db749__jpg.heic","img_width":822,"is_origin":false,"source":0,"type":1},{"img_height":404,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/a36749ec44397889121591081706129e__jpg.heic","img_width":822,"is_origin":false,"source":0,"type":1},{"img_height":404,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/7c592ef13ceba6731171e0af603b1d7c__jpg.heic","img_width":822,"is_origin":false,"source":0,"type":1},{"img_height":404,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/a48888b6c7b5273ddde65ca5d12fd338__jpg.heic","img_width":822,"is_origin":false,"source":0,"type":1},{"img_height":404,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/372fcc3ba92feecd89664c96fe4b2bf1__jpg.heic","img_width":822,"is_origin":false,"source":0,"type":1},{"source":0,"text":"第25题(五中:乔君明)
得分情况:全市共6337名学生,25题满分7分,最高分7分、最低分0分、平均分1.45分。从学生的得分情况来看,得0分占66.02%,得7分占12.05%。
失分分析:1、基础知识识记不到位、密度的计算公式没有记住或记错。2、审题不清,题意理解错误。例如:在计算石块的体积时,应先计算出溢出水的体积、在说明石块体积等于水的体积。3、综合应用计算能力较差,部分学生在解答过程中语言表达不流畅、公式、单位不正确(或遗漏)。
改进措施:1、重视基础知识的教学。物理量的符号、单位,密度的公式,单位换算等知识应进一步落实。2、有针对性的训练学生的计算能力,进一步规范学生的答题步骤。3、进一步培养学生的审题理解能力,使学生能从具体问题中,联系实际培养学生观察能力,能辨别不同事物的异同,养成观察和发现问题的习惯;联系实际培养学生应用物理知识分析解答问题的思路和方法,同时也激发学生学习物理的热情,做到学以致用。
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","type":1},{"img_height":662,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/36737243431a384efb3bb550647994b5__jpg.heic","img_width":436,"is_origin":false,"source":0,"type":1},{"img_height":660,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/ce5782ca515564df7b322a63c704f96b__jpg.heic","img_width":444,"is_origin":false,"source":0,"type":1},{"img_height":664,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/33687c6fc73f1fedd826de383145c961__jpg.heic","img_width":438,"is_origin":false,"source":0,"type":1},{"img_height":660,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/c01e6413b5543bcc664b682e0205abba__jpg.heic","img_width":436,"is_origin":false,"source":0,"type":1},{"img_height":722,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/067645ba684936b783618cea74f99381__jpg.heic","img_width":540,"is_origin":false,"source":0,"type":1},{"source":0,"text":"2019-2020年度八年级物理期末检测阅卷反馈
第16题 (一私:许昭辉)
考查内容:1、是光的传播速度和小孔成像的知识。这是光现象知识的基础和该部分知识的应用考察。2、是光速在真空中的传播速度是3.0×108m/s,小孔成像是由于光的直线传播而形成的。
存在问题:1、把声音的传播速度340m/s和光的传播速度混淆,2、空白题的出现率较高,说明学生对该部分知识重视不够,掌握不牢固,需要进一步巩固。3、书写的规范性有待提高。4、学生把折射、反射和直线传播混淆的较多,属于概念不清,知识是掌握的不正确问题。
改进措施:综上分析可知物理学科的基础知识是学好本门课程的基础,基本概念、定义和知识的相关应用需要加强理解和辨别。
","type":1},{"img_height":364,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/c6a6ae220445e0e7cff3565528884186__jpg.heic","img_width":568,"is_origin":false,"source":0,"type":1},{"source":0,"text":"第17题(一私:周通)
考查内容:0摄氏度的规定:标准大气压下冰水混合物的温度。以及100摄氏度的规定:标准大气压下沸水的温度。对于这个知识点是偏向于基础性知识,在老师的印象中这个题应该得到高分,现在4分成绩平均分得到了1.9分,这个分值并不是太高。
存在问题:1、字不会写,好多同学会把“混合物”写成”浑和物”,从而出现问题。还有的同学“混”字就不会写。各种各样的都有。这是平常的老师没有强调字的书写。2、“沸点”,知道什么是100摄氏度,但不知道沸点,如有的人,出现“开水”、“热水”、“正在烧的开水”等等。都出现在试卷上。还是对于考察的东西不理解。有的孩子“沸腾”写成“沸滕”。知道了确实不会写。3、书写问题,有些学生的书写存在极大问题,字体潦草,有些字都得盯着屏幕才能看清甚至看不清。从而导致批卷老师看不清不给分。
","type":1},{"img_height":360,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/9f6c71e37c8c0a6e1ab9ad786d693570__jpg.heic","img_width":662,"is_origin":false,"source":0,"type":1},{"source":0,"text":"18题(附中:刘志华)
得分情况:全市共6337名学生,18题满分6分,最高分6分、最低分0分、平均分4.41分。从学生的得分情况来看,得0分占6.98%,得2分占12.88%,得4分占31.98%,得7分占47.78%。
答题分析:1、三个空分别是质量单位、速度单位、长度单位,质量单位、长度单位学生错误是本单位错误,如应该t,写成kg,应该写cm写成mm等,但第二孔速度学错误较多,许多学生写成长度单位和时间单位,应写成km/h,而学生写成km,迈等,说明学生对速度单位理解较差。2、部分学生书写不标准,如km写成KM,cm写成CM。
改进措施:1、重视基础知识的教学。物理量的符号、单位,尤其是组合单位需要加强如速度和密度单位。2、有针对性的训练学生书写能力,规范学生的书写。
","type":1},{"img_height":686,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/92ebdf30a82e13141e24d865de1b9efc__jpg.heic","img_width":590,"is_origin":false,"source":0,"type":1},{"img_height":438,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/82f5f4db9f340f0bc7da1f1773ffcff1__jpg.heic","img_width":548,"is_origin":false,"source":0,"type":1},{"source":0,"text":"第19题(葛泉:苑永辉)
本次考试第19题主要考查运动和静止的相对性。共有两个空,第一个空要求学生根据骑车速度与风速的关系,来判断三人骑车速度的关系。考生出错原因主要是对相对速度的判断不熟练,这道题也是联系实际生活的一道题,如果考生从实际经验中来考虑,也能很快得出答案。从答题情况看表示速度的符号是v,有好多考生用符号u来表示,也就是学生对物理量的符号容易记混。
第二个空是让学生正确判断风向,参考答案为“南风”考生对南风的表述是多种多样,有的是“向北”还有“由南向北”“从南往北”,也就是学生难以用物理的语言来表达物理现象。这就要求学生平时就养成一个用物理的语言来表达问题的习惯。
","type":1},{"img_height":526,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/63b780d12bd3f7617737e07c2320911b__jpg.heic","img_width":670,"is_origin":false,"source":0,"type":1},{"source":0,"text":"第20题(温家沟:孔书民)
一、题型评价:本题考查了物态变化知识点,试题联系实际生活,能很好的反应学生对物态变化知识点的掌握程度,均分2.02分,从得分情况看,学生整体掌握不太好,因此试题具有一定的梯度。|
二、存在问题
1.很大一部分学生对物态变化知识点理解不到位,不答或一个都不对的或答非所问的有一部分学生。2.错别字特别严重,例如凝华的凝不会写,华写成化的特别多。3.有一大部分学生答案顺序不多。4.字体潦草,似对非对的也较多。
三、今后教学建议
1.教师在教学过程中要夯实学生的基础,不要让学生似懂非懂。2.对于一些特殊的物理名词教师要特别强调,让学生印象深刻。3.物理教学关键还是要让学生理解,注重提高学生的能力。
","type":1},{"img_height":668,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/b5b843c083237808667e6812973a0cfc__jpg.heic","img_width":660,"is_origin":false,"source":0,"type":1},{"source":0,"text":"第21 题(新城:秦力军)
得分情况:本小题共4分,0分比例35.66%,1分比例9.43%,2分比例33.55%,3分比例3.44%,4分比例17.93%。
规范答案:
","type":1},{"img_height":580,"img_size":58,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/405a3f2e784c4d1fb7a4eca358cacb51__jpg.heic","img_width":542,"is_origin":false,"source":0,"type":1},{"source":0,"text":" 21(1)题两种方法都正确,辅助线用虚线,光线用带箭头直线。物体和像的连线与镜面垂直,有垂直符号,像距等于物距。(2)题有法线用虚线表示与界面垂直有垂直符号,两次折射都是空气中角较大,入射光线和最后的折射光线平行。
(1)典型错误一辅助线用实线
","type":1},{"img_height":364,"img_size":38,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/f56a8929934647d8331a069bddce96d3__jpg.heic","img_width":528,"is_origin":false,"source":0,"type":1},{"source":0,"text":"(2)典型错误二没有标出A’
","type":1},{"img_height":170,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/cbd5035a538ff8caa0a927a00f0a1db1__jpg.heic","img_width":482,"is_origin":false,"source":0,"type":1},{"source":0,"text":"(3)典型错误三没有法线
","type":1},{"img_height":172,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/454acbf9bded8459ffdaf09a02fdf137__jpg.heic","img_width":526,"is_origin":false,"source":0,"type":1},{"source":0,"text":"(4)典型错误四法线没有垂直符号
","type":1},{"img_height":184,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/dd2bcb696177784efb1db2c2ffb1049d__jpg.heic","img_width":532,"is_origin":false,"source":0,"type":1},{"source":0,"text":"(5)典型错误五入射光线和最后折射不平行
","type":1},{"img_height":182,"img_size":15,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/f85b69ff1baf705f00a88bf2ca331b1f__jpg.heic","img_width":516,"is_origin":false,"source":0,"type":1},{"source":0,"text":"(6)典型错误六光线没箭头或用虚线
","type":1},{"img_height":174,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/c2cba1799b595f8a24663efd008aa279__jpg.heic","img_width":524,"is_origin":false,"source":0,"type":1},{"source":0,"text":"(7)典型错误七没有认真读题做成光的反射
","type":1},{"img_height":344,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/0b30fb2192394c3b24567614c63beb37__jpg.heic","img_width":492,"is_origin":false,"source":0,"type":1},{"source":0,"text":"(8)典型错误八折射角大小关系弄反
","type":1},{"img_height":182,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/b97595f628d0c48d9d492915cee7e7cf__jpg.heic","img_width":518,"is_origin":false,"source":0,"type":1},{"source":0,"text":"第22 题(高村:姚丽英)
22题是凸透镜成像实验题,通过阅卷看到如下问题:1.学生普遍书写能力差,比如有的倒立写成倒力,有的干脆一个字倒。缩小的缩字写错,高度 的高写成亮字。2.在凸透镜成像实验中,孩子们对物距和相距对比时成像理解不够。3.物距和像距相等是2倍焦距不知道。4.近视镜是什么透镜,对光有什么作用理解不够。
","type":1},{"img_height":744,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/62dda4d5b54146183bf81c660adb9235__jpg.heic","img_width":602,"is_origin":false,"source":0,"type":1},{"source":0,"text":"第23 题(二中:刘乐英)
得分情况:本题满分10分,学生平均分5.16分。
考察内容:天平使用步骤、调节天平横梁平衡方法、密度公式、测量液体密度的方法、误差分析等知识。
典型试卷优秀原因:1、书写清楚。2、表述规范。
典型试卷错误原因:
1、书写不清楚、出现错别字2、表述不规范,公式字母书写不规范,公式错误第三空,体积v不带脚标或质量m把脚标带的靠上变成平方了,密度公式中密度符号书写不规范。3、密度公式没有记准导致误差分析时分析出与正确答案相反的错误结论。4、没有审题没有看空后括号里的答案选项,实验原理步骤理解不到位。5、所答非所问或瞎猜答案。
","type":1},{"img_height":228,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/317f96873bccc8e831a3aba26a1c71bd__jpg.heic","img_width":828,"is_origin":false,"source":0,"type":1},{"img_height":228,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/4fdb54451341b3ba59c99f1d9c1b32f7__jpg.heic","img_width":828,"is_origin":false,"source":0,"type":1},{"img_height":228,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/93696a08ee8f2fdc9f5bb57110f8ea8c__jpg.heic","img_width":828,"is_origin":false,"source":0,"type":1},{"img_height":228,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/2cc1054cba78841011197cbe3824de2c__jpg.heic","img_width":828,"is_origin":false,"source":0,"type":1},{"img_height":228,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/78faed363370ebab1df8ce010662ce07__jpg.heic","img_width":828,"is_origin":false,"source":0,"type":1},{"img_height":228,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/36afbbf1591387399b53c4c82eaadcea__jpg.heic","img_width":828,"is_origin":false,"source":0,"type":1},{"img_height":228,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/c349afe0f719915a458d17bd0041bc86__jpg.heic","img_width":828,"is_origin":false,"source":0,"type":1},{"source":0,"text":"第24题(三中:李想鱼 九中:陈延普)
得分情况:本题满分10分,学全市共6337名学生,24题满分6分,最高分6分、最低分0分、平均分1.2分。从学生的得分情况来看,得0分占59.87%,得6分占3.87%。
一、题型评价:本题考查的是结合列车时刻表速度的计算,分为两问,都是计算平均速度。
二、存在问题:1、基础知识识记不到位,速度的计算公式没有记住或记错。2、时间计算错误,很多学生让离站时间减去离站时间。3、审题不清,如第二问问的是平均速度是多少米/秒,部分学生就写成千米/小时.4、综合计算能力较差,部分学生在解答过程中语言表达不流畅、公式书写不正确、单位不写或遗漏。5、字体潦草,批改试卷时需要去寻找答案。
三、改进措施:
1、教师在教学过程中要重视基础知识的教学,物理量的符号、单位、公式、单位换算等知识应进一步夯实。2、规范学生的答题步骤;有针对性的训练学生的计算能力。3.培养学生的审题理解能力,及应用物理知识分析解答问题的思路和方法,同时也激发学生学习物理的热情,做到学以致用。
","type":1},{"img_height":404,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/0cdaf60eb0b13f52718a7c3021a65da2__jpg.heic","img_width":822,"is_origin":false,"source":0,"type":1},{"img_height":404,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/907b8e02eabc279aa152f96b208db749__jpg.heic","img_width":822,"is_origin":false,"source":0,"type":1},{"img_height":404,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/a36749ec44397889121591081706129e__jpg.heic","img_width":822,"is_origin":false,"source":0,"type":1},{"img_height":404,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/7c592ef13ceba6731171e0af603b1d7c__jpg.heic","img_width":822,"is_origin":false,"source":0,"type":1},{"img_height":404,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/a48888b6c7b5273ddde65ca5d12fd338__jpg.heic","img_width":822,"is_origin":false,"source":0,"type":1},{"img_height":404,"img_url":"https://ss-mpvolc.meipian.me/users/63463039/372fcc3ba92feecd89664c96fe4b2bf1__jpg.heic","img_width":822,"is_origin":false,"source":0,"type":1},{"source":0,"text":"第25题(五中:乔君明)
得分情况:全市共6337名学生,25题满分7分,最高分7分、最低分0分、平均分1.45分。从学生的得分情况来看,得0分占66.02%,得7分占12.05%。
失分分析:1、基础知识识记不到位、密度的计算公式没有记住或记错。2、审题不清,题意理解错误。例如:在计算石块的体积时,应先计算出溢出水的体积、在说明石块体积等于水的体积。3、综合应用计算能力较差,部分学生在解答过程中语言表达不流畅、公式、单位不正确(或遗漏)。
改进措施:1、重视基础知识的教学。物理量的符号、单位,密度的公式,单位换算等知识应进一步落实。2、有针对性的训练学生的计算能力,进一步规范学生的答题步骤。3、进一步培养学生的审题理解能力,使学生能从具体问题中,联系实际培养学生观察能力,能辨别不同事物的异同,养成观察和发现问题的习惯;联系实际培养学生应用物理知识分析解答问题的思路和方法,同时也激发学生学习物理的热情,做到学以致用。
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