英语月考试卷评讲教学设计(共6篇)
第1篇:《月考试卷评讲》教学设计
《月考试卷评讲》教学设计
教学目的:根据学生试卷中反映出的主要问题,针对性地进行评讲和练习,以求收到实效。
教学方法:讲、练、评结合 教学时间:45分钟 教学设计:
【引入】 这次月考试卷和评分标准大家已经看到了。昨天大家对自己的错误也进行了订正。今天,我们对出错较多的习题进行评讲,希望你通过今天的课找出自己的不足之处,从而得到提高。
【讲解】 选择题中,第9题考察阿伏加德罗常数的有关计算。这道题出错主要在A选项,有10个同学选A。
师:请同学来分析A选项为什么错误。生:22.4L气体没有指明温度和压强。
师:对!要将22.4L与1mol对应起来,必须强调描述的对象是气体,环境是标准状况,即0℃,101kPa。离开温度、压强谈气体的体积无意义。
师:阿伏加德罗常数的有关计算是重要的考点,但也是同学们的薄弱环节所在。针对这一弱点,我们来看下面的练习。
【投影】
课堂练习1:设NA表示阿伏加德罗常数,判断下列说法是否正确?(1)标准状况下,22.4L辛烷完全燃烧,生成的二氧化碳分子数为8 NA(2)常温常压,48g臭氧含有的氧原子个数为3 NA(3)同温同压下,体积相同的HCl与H2和Cl2的混合气体一定具有相同的原子数目(4)1mol 甲基中含有电子数为10 NA(5)2.7g金属铝与足量盐酸反应,转移的电子数为2 NA(6)1mol C8H18分子中共价键总数为25 NA(7)250C时,1L pH=13的NaOH溶液中约含有NA个OH—
【活动】 请学生分析、讨论各选项的正误,对错误的选项指出错因。教师进行总结。生一:选项(1)错,标准状况下辛烷是液体,不用22.4L来描述。生二:选项(2)错,此时臭氧不是处于标准状况。
生三:我认为选项(2)正确,因为物质的质量与物质所处的状态无关。
师:大家注意,气体物质的体积与气体所处的环境有关,但物质的质量是物质的固有性质,与外界温度、压强都没有关系。生四:选项(3)正确,因为它们均是双原子分子,物质的量相等,则原子总数相等。生五:选项(4)错,1mol甲基中含有电子数应为9NA
生六:选项(5)错,铝是+3价金属,0.1mol Al应失去0.3 NA的电子。生七:选项(6)正确。师:你能告诉我们做法吗?
生:我是将C8H18的结构式画出来数得的结果。师:大家认为这位同学的做法正确吗? 生:正确,但太麻烦。.师:是的。这种办法很可靠,但如果分子中共价键太多,数起来会很麻烦。有没有既快又好的做法呢?对于烷烃CnH2n+2,分子中共价键总数为多少?
生:可以根据C和H的成键特点来做。一个C四个电子,一个H一个电子,每两个电子
形成一根共价键。所以共价键的总数为:N(共价键)=(4n + n)/2。师:大家说说这位同学的做法如何? 生:这种办法真简单!
生八:选项(7)不正确,因为此时c(OH)= 0.1mol/L,n(OH)= 0.1mol。【总结】 大家刚才说得很好。这种题做法比较简单,但做题的时候一定要仔细,把题目的条件、结论看清楚,避免不必要的失分。【活动】 请学生分析选择题
10、11题出错原因。
师:第10题有1/3的同学选择A。现在我们请当时选A的同学来分析一下这个选项。生:A不正确,因为物质D是固体。我考试时忽略了这个条件。
师:看来大家这道题出错主要是读题不仔细造成的。快把“s”做上着重符号。平时审题要仔细,关键的地方不要忽略了。
师:11题有不少同学反映找不到题目的入题点。通过改错,现在你找到突破口了吗? 生:突破口在:“Y—被氧化可生成YZ3—”。由此我猜测Z是氧元素,根据题目条件,X 应该是钾元素,Y是氯元素。代入题目验证,我的猜测是正确的。
【总结】 对于选择题来讲,同学们的失分主要是读题不仔细,审题不清造成的。如何才能准确、快速地审题,避免不必要的失分呢?请看大屏幕。【投影】 审题要点:
逐字逐句仔细读题
关键字词勾圈划点
寻找解题的突破口
—
—【讲解】 关于审题,我们再来看26(3)。
【活动】 请学生代表读出自己的叙述答案,其余同学给予评价。生一:阴极H得电子,产生OH,使酚酞显红色。生二:溶液中有OH,遇酚酞显红色。
生三:阴极H得电子变为H2,使溶液中c(OH)增大,溶液呈碱性,遇酚酞显红色。生四:阴极H 放电,使溶液中c(H)> c(OH),使酚酞变红。师:刚才几位同学的叙述哪些较好? 生:后两位同学的叙述更清楚。
师:是的。后两位同学的叙述抓住了要点。溶液之所以变红,是因为溶液呈碱性;溶液之所以呈碱性,是因为H 放电,使溶液中c(H)> c(OH)。
【投影】 阴极H+ 得电子生成H2,使水的电离平衡正向移动,c(H)> c(OH),溶液显碱性,酚酞变红。
【总结】 对于叙述题,我们思考时可以从结论入手,往条件方向反推。写答案时按照逻辑顺序分析清因果关系进行顺向叙述,简单讲就是逆推顺答。语言叙述要精简扼要。【投影】 简答题答题要求:
语言精简扼要,体现逻辑关系。
【讲解】 27题是一道实验题,约有1/3的同学不同程度地失分。从同学的提问来看,主要问题出在没有将实验装置图和题目中的表格内容联系起来,以至于题目分析不清。【活动】 请学生分析实验流程,解决学生答题中出现的问题。
生:将废塑料加热,产物经过B装置被冷水冷却,甲苯和苯留在试管中。剩余气体进入C装置,丙烯和乙烯与Br2发生加成而留在溴水中。最后逸出被点燃的气体是甲烷和氢气。师:这位同学分析得非常清楚。根据刚才同学的叙述,我们来看大家出错较多的(3)题。将气体通入溴水中,除了溴水褪色以外,为什么还会有气泡冒出? 生:因为甲烷和氢气不与溴水反应而逸出。生:哦!难怪实验现象有两点!师:大家对这道实验题还有疑问吗? 生:没有了。
【总结】 实验题是常见的一种考题形式。拿到题,大家应该先分析清楚这个实验要干什么,如何通过操作来实现这个目的,也就是分析清实验目的和实验操作,然后根据实验
流程完成题目。
【讲解】 28题考察氧化还原反应的有关内容。
师:对于第(1)问算元素的化合价,你认为从哪个知识点来入手分析?
+
—+
+
—+
+
—+
——+
—生:根据电子守恒关系求解。师:哪位同学来具体分析一下?
生:我来!反应中Xe元素的化合价从+6价变为0价变化了6价,参加反应的Xe元素共 有2.5×10mol,所以共得到电子6×2.5×10 mol = 1.5×10 mol。参加反应的Mn元素物质的量为3×10mol,所以Mn元素的化合价变化为:(1.5×10)÷(3×10)= 5。所以氧化产物中,Mn的化合价为 +7价。师:大家说,Mn元素对应的产物是什么? 生:MnO4。
师:根据化合价升、降总数相等,我们可以将XeO
3、Mn、Xe和MnO4的化学计量数
配定。
【投影】 5XeO3 + 6 Mn—5Xe + 6MnO4 师:接下来该怎么办? 生:将电荷配平。
师:在水溶液中,一般如何配平电荷? 生:加H 或OH。
师:是的。对于本题,到底该加什么呢?为什么?
生:加18H。因为如果加OH,则Mn(OH)2是弱碱,不能拆。【投影】 5XeO3 + 6 Mn—5Xe + 6MnO4 + 18H 师:下一步又该怎么办?
生:反应物配9H2O,完成方程式的配平。
【投影】 9H2O + 5XeO3 + 6 Mn === 5Xe + 6MnO4 + 18H
师:总结我们刚才的配平步骤,先是依据反应情况写出氧化剂、还原剂及其对应的产物,依据电子守恒将其配平,然后依据电荷守恒和质量守恒加入介质,完成方程式的配平。【投影】 氧化还原离子方程式的书写:
1、依题意写出氧化剂、还原剂及对应产物
2、用电子守恒找出上述四种物质的系数
3、再用电荷守恒找出其它物质
4、最后用质量守恒完成配平
【讲解】 如何加入介质是同学们的一大弱点。针对这一不足,我们来完成下面的练习: 【投影】 课堂练习2 :在下列离子方程式中加入恰当的物质,将其配平。
(1)将Cl2通入Na2S2O3溶液中:
S2O3+ 4Cl2 +—2SO4 + 8Cl+ 2—
2—
—2+
—
+2+
—
++—+—2+
—
2+
———3—
3—2—3
—3
—2(2)以NaOH作电解质溶液的CH4燃料电池负极反应: CH4 + e +—CO3 + 【投影】 将学生的答案进行投影。
S2O3+ 4Cl2 + 5H2O ==== 2SO4 + 8Cl + 10H CH4—8e+10OH ==== CO3 + 7 H2O 【讲解】 写物质的同分异构体是大家的一个难点。我们来看看29(5)题如何解答。【讲解】 我们已经写出了E的结构简式。根据题目条件,我们只需要将—CH2COOH这个原子团做相应的变换即可。我们写同分异构体一定要进行有序地思维,否则写出的物质容易写重或写漏。
【活动】 与学生一起回顾、练习同分异构体的书写程序。师:书写同分异构体的程序是怎样的呢?
生:先写碳链异构,然后考虑官能团位置异构,最后是官能团异构。
师:大家回答得很好。针对这道题,两个碳只有一种异构情况。题目要求要有碳氧双键,这个官能团的位置可以出现在一碳上,也可以出现在二碳上。剩余的一个氧原子可以插在C—O键或C—C键之间。所以,我们可以得到如下的七种同分异构体。最后大家不要忘了把氢原子补完整。【投影】
【讲解】 按照一定的限制条件书写同分异构体一定要注意思维的有序性,这样才能不重不漏地完成你的任务。我们来看下面的练习:
【投影】课堂练习3:某有机物的结构简式如右图,它的含有醛基(—CHO),除苯环外不含其他环的芳香族化合物的同分异构体共有()A.3种 B.4种 C.5种 D.6种
【活动】学生讨论,按照一定的程序写出该有机物同分异构体的碳链骨架,教师投影学生练习,进行点评。【投影】
师:在交卷之前,不要忘了把氢原子补充完整。同学们的练习完成得棒极了!自我鼓励一下!希望大家在今后的练习中记得用一定的程序来完成同分异构体的书写。【总结】今天,我们针对大家在月考中体现出的问题进行了试卷的评讲和相应的练习。对于知识上的疏漏,你弥补得如何了呢?如果你还有其他问题,今晚的自习课我将和你一起解决。今天的课就上到这里。课后巩固练习:
1、设NA为阿佛加德罗常数,下列叙述中正确的是()——
2—2—
2—
—
+—2—A.标准状况下,11.2L四氯化碳所含分子数为0.5 NA B.1L 1mol/L的盐酸溶液中,所含氯化氢分子数为NA C.1L 1mol/L醋酸溶液中离子总数为2NA D.46 g NO2 和 N2O4混合气体中含有原子数为3NA
2、某芳香族有机物的分子式为C8H6O2,它的分子(除苯环外不含其他环)中不可能有()
A.两个羟基 B.一个醛基 C.两个醛基 D.一个羧基
3、某溶液中若加入铝粉立即产生大量氢气。在此溶液中,下列哪组离子一定能大量共存?()
A.Na、Ba、ClO、NO3 B.K、Al、Cl、SO4 C.K、Na、SO4、Cl++2——+ 2+——
+
3+
—
2—
D.Na、Fe、I、NO3
+2+——
4、(l)配平离子方程式:
MnO4+ H2O2+————Mn+ O2↑十 H2O(2)以乙烷、空气和KOH溶液形成燃料电池,写出电池工作时的总反应式: ;电极的负极反应式:。
【教学反思】
这节课是一节习题评讲课,其目的是透过学生在考试中出现的问题进行知识缺漏的弥补。从课前的准备到课后学生的反映,都给了我很多启示。
在以前的评讲课中我发现,教师讲出错率低的习题,大部分同学不愿意听,课堂气氛沉闷;教师直接对出错率高的习题进行集中纠正,学生当时记住了,但印象不深刻,下次遇到了仍然出错。总结这些情况后我发现,学生的错误之所以屡禁不止,是因为没有发挥出学生学习的主动性,出现的错误没有引起他们的重视。所以在评讲这套题之前,我将试题评分标准发给学生并要求学生先订正错误,这样学生确实不懂的问题就显现出来,评讲时学生才会去积极思考,解决自己的问题。对于我,课前我对学生出错的习题以及出错原因进行了统计,大约有1/4学生出错的习题列为评讲内容,这样使我这堂课的针对性较强。为了使学生暴露出的问题得到有效地解决,我还准备了一些课堂练习对知识进行及时地巩固。课堂上,如果教师一直讲,学生一直听,学生的积极性仍然调动不起来。我试着通过师生间的互动暴露出学生的问题,让其余学生—
2+帮助解决。我注意及时给予学生鼓励,让他们体会到成功的喜悦。通过课后学生的情况反馈看出,学生对这样的评讲课有较浓的兴趣,85%学生的问题能得到有效的解决。这是我这节课的成功之处。
这节课的教学仍有许多不足之处。评讲课的目的除了帮助学生解决知识上的问题以外,还要教会学生解题方法,这就需要教师对题型特点、思维方式进行点拨,这样才能使评讲源于习题而高于习题,起到提升学生综合能力的作用。但由于我自己初涉教坛,经验还很不足,所以今天对试题的总结显得很薄弱,评讲效果不如预期的满意。在课堂上要发挥学生的主动性,让他们主动去思考,教师对情景的创设、问题的设计很重要,但在课前我对问题的创设没有进行细致地考虑,这使得学生的积极性调动不充分,今后在这方面还应该向有经验的老师多请教,自己在教学中多摸索,使自己在教学中有更大地提高。对上好评讲课的基本认识 双流中学
周友明
高三复习教学中的一个主要和非常重要的课就是评讲课。我们在复习了章节知识、专题知识以后,需要选择试题来熟练巩固,通过测验来检测学生的复习效果,除此以外还有大大小小的诊断性考试、半期考试以及月考,考试少不了,那么评讲也就少不了,学生们不管对于平时测验还是大型考试,一般都是抱着认真的态度来对待,那么教师的评讲就必须抱着更认真的态度来对待,因此上好评讲课,非常重要。下面我对上好评讲课,结合我们学校的要求和一些做法以及杨老师的课,谈谈基本认识,供大家参考。
一、评讲的目的一份试题有十几或者二十几道题目,教师如果平均使力,面面俱到,其结果只能是事倍功半。评讲就是为了针对学生实际,让学生进行知识的修正和补救,方法的提炼和掌握,能力的培养和提高,讲求实效,从而达到熟练掌握和巩固知识的目的。今天上课的班,是我们学校的中等层次的班,本次考试问题比较多的题有下面几个:选择题有 9题学生理解概念的能力差,10题和11题,学生审题能力,26(3)、27(3)学生答题不规范,28、29(5)学生能力差,不能回答好,因此教师在评讲时,就怎样针对这几个题,针对高考来发散展开进行
1、评讲时要讲审题 评讲时要教会学生审题,就要求学生必须明白题意,要明确命题者的意图,甚至是明白命题者的深层次的用意,有的学生胆大而不心细,看错题,看漏题,题目要求未看清楚,多看出字或者少看字,看错字词,如要求写电子式却写出分子式或结构简式; 要求写元素名称却写成元素符号甚至化学式;要求写离子方程式却写成化学方程式;要求标出电子转移的方向和数目, 要求写出反应类型却视而不见,如果看错、看漏,差之毫厘,失之千里。特别是一些经常看错题目的同学叫他们用笔指到一字一句地读题,将题目中一些重要的字词用重点符号标记出来,要求他们养成认真审题、认真读题的好习惯。比如我们这套题学生在审题时,把10题的D的状态看错或者没有看到选A的占了1/4,27题,学生不明白各装置的作用,没有把题、图、表联系起来。这些只有平时评讲时讲了,高考才可能不犯或者少犯类似错误。
2、评讲时要讲规范
评讲时教师要讲要求学生字迹清楚、卷面整洁、画图规范、格式正确。在书写方程式时, 有的“→”、“=”、“
” 不规范使用,有的条件不注明,漏写小分子(如H2O等)。元素名称符号书写不规范,官能团连接方式错误,有机结构少写或多写H原子,化学专有名词写错字或简化字。在答实验题目时,有的学生的语言极不规范,逻辑思维混乱,不知道采用逆思维,如26题的3问,既然溶液显碱性,那么c(OH-)> c(H+),而原来c(OH-)= c(H+),说明要么生成OH-要么反应H+,到底哪个对,如果反应H+自然就想到H+放电,然后再顺表述,然后要求学生用书面语言和化学语言表达,而且要求语言精练。再如,27题(3)问,大部分学生知道从C中逸出了气体,但在回答时,却没有表达叙述出有气泡产生,学生失分多,主要是不知道需要回答什么,还有一些同学对答题的基本格式没有掌握,如果有类似不规范的书写和答法都要指出。这就要指导他们答题时有哪些基本要求,在该试卷中这道题应当怎么答,遇到类似的题又应当怎么答。
3、评讲时要讲思路、讲方法
评讲时教师要讲解解题思路,要进行方法点拨,而且要把重点放在讲思路,对学生进行思路的启发和方法的指导。比如学生在做题时,思路方法错误或者混乱,答题必然错误,就必然掉入命题者的陷阱,这有的是知识不过关,有的是思路不清晰,有的是根本就没有方法,不知道如何解答这种题目,如11题,教给学生做推断题时,先找到题眼。再如27题,要指导学生分析实验目的和过程,总结实验题解题的方法和程序,还有28题,教给学生解答氧化还原反应的计算方法是电子守恒,方程式的书写先写氧化剂和还原剂以及产物,再根据电子守恒、电荷守恒,最后根据原子守恒配平方程式,在电荷和原子不守恒的情况下如何加介质,29题,教给学生书写限定条件下同分异构体的基本方法,一碳二官三位置,要求学生书写时有序思维,因此评讲时教师要教给学生一些解决问题的思路和方法。
4、评讲时要讲错因
评讲时教师要讲错因,要注意帮助学生做好试卷的自我分析,如评讲
9、10题时,课堂上教师要求学生自己回答为什么错选A,教师也可以在课前了解学生的错误原因,然后在课堂上提出来叫大家分析,还可以设想一些可能错误叫学生分析。分析的目的是为了纠正,教师再具体指出为什么错,抓住典型的错例,择其要点加以点拨,充分启发学生思考,调动学生积极性。
5、评讲时要讲联系、讲创新
教师只将一道题讲好题意、讲清思路、讲明方法,是远远不够的,必须从一道题中跳出去讲联系、讲适当的扩展、讲创新,因此就要求教师心中装的不是一道题,而是许多题,许多同类的题,许多同类的高考题以及它的变化和发展。教师通过讲一道题而要求学生掌握一类题,从一个知识点,联系到整个知识网,教师要重视学生知识链、知识网的构建。有些题,教师经常讲,考试经常考,但学生仍然要经常错,因此在讲这类题目时,教师切忌就题论题,要讲题的变化,比如该试卷中的9题(阿伏加德罗常数有关的题)、28题(氧化还原反应的有关计算和离子方程式的书写),29(5)(同分异构体书写判断的题),7题(离子共存的题),12题(离子浓度大小比较的题),由于我们学校后两个题考的次数较多,本次考试学生错的不多,因此教师没有评讲,在评讲这类题时,做到举一反三,如果就题论题,往往没有多大收效。因此评讲时,教师要创新地讲,要求在这个基础上,通过教师的有启发式地讲评,激发出学生的创新思维。
总之,在讲评过程中教师要力求精讲、精析,要针对典型的错例,针对学生实际,针对高考,择其重点加以分析、点拨,充分启发学生思维,调动学生的积极性,对重要的题型及其解题思维和方法进行有效的归纳总结。这样才能真正使评讲有针对性,有目的性,这样的评讲才有实效性,才能提高评讲效率。
二、如何发挥学生的主体性
1、评讲前学生要自我评价
发试卷时,教师可以同时发给学生答案,我们本次考试后同时印发了答案,要求学生不能只是看分数,同时更要看答案,要自我评价,即使没有发答案,也要教育学生养成自己评价、自己修订的习惯,并反思自己为什么错,答案为什么是那样的,对于自己的问题最好在自己的试卷上指出,比如自己是过失性失误,还是知识遗漏,还是方法问题,并且在相应的题目上做好标记,要求学生可以独立完成,也可以讨论完成。这样有利于学生在听评讲时,集中精力,增强评讲的实效。
2、评讲中学生要勤思、勤练、勤记
不要把评讲课变成只是教师讲,要给学生表述自已思维过程的机会,增加教师与学生,学生与学生讨论问题的时间。即便学生的思维有误,也应鼓励他们尽量用完整的语言表达出来,能够暴露的问题尽量暴露出来,以便教师清楚地了解其学习中的困难究竟发生在何处,便于及时纠正和指导。评讲过程中不仅要求学生记答案,而且还要求学生记规律和方法,记教师的总结,还要求学生思考练习教师补充的巩固拓宽练习题,并积极回答老师提出的问题,并能够尽量提出问题。
3、评讲后学生要巩固、提高
一般评讲后,学生已经能够掌握有关知识、具有一定的方法和能力,评讲后还要求学生进行自我总结,以巩固评讲成果;如果没有巩固,那么过几天后可能又忘记了,因此要求学生课后要根据自己的情况认真完成老师布置的练习,而且每隔一段时间要翻看自己的试卷,以此达到提高。
三、如何发挥教师的主导性
1、评讲前教师要统计和归纳
教师在评讲前应事先准备的内容主要包括成绩的统计、错误统计、试卷的难易比例的统计、各题目和知识点的得分率的统计,知识的归类比较、方法的归纳,学生好的解法和答法的归纳,以及典型的错误的归纳,并且要作重点剖析,以及要补充的相关训练题等。只有这样教师在评讲时才能针对那些普遍存在的问题或错误率较高的题目,进行归类、分析和讲解。
2、评讲中教师要贯彻讲、练、评相结合在评讲中既要有教师的讲又要有学生的练,还要有教师的评,主要是教师的引导,也就是仍然要求贯彻讲、练、评于教学的始终,才能达到巩固的目的。对于错误较多,又常考的题,教师在评讲时要针对学生实际,针对高考,配以相关的习题,要求学生思考练习,还要做到学生练后再讲、至少要思考后再讲,如本次课中结合存在的问题精选设计了较多相关的题目,如与阿伏加德罗常数的有关的题,氧化还原离子方程式的书写的题,同分异构题的书写判断的题,在课堂上进行强化训练;要充分利用各种教学设备和手段,如小黑板、幻灯片、投影仪甚至油印的练习等,加大课堂容量。
3、评讲后教师要及时辅导和跟踪
我们评讲的试题只是大多数同学有错误的问题,还有一些题没有评讲,因此个别的学生和个别的问题还要有个别的辅导,还要配以相应的试题学生课后跟踪练习。要注意课内评讲与课外辅导相结合。
四、评讲时要注意的策略
1、评讲要有及时性
不管是平时练习还是检测,要评讲而且要及时。我们反对只练不讲,或者练习后只是贴答案叫学生对答案的做法,那样无助于学生掌握知识和修正知识,也反对检测后很久才评讲的做法,那样学生原来是怎样错的可能已经忘记了,那样的评讲,即使评讲得很好,但评讲以后,学生印象不深,评讲的效率就大打折扣。我们本次考试是上周星期五和星期六进行的月考,也才把试卷阅出来了,今天的评讲是随堂评讲。
2、评讲要有激励性
评讲时要激励学生。学生一般对于试卷的分数十分重视,往往看到高分就兴高采烈,而不善于总结自己取得成绩的原因,而对于一些成绩差的学生,则灰心丧气,低头不语,甚至不敢分析自己失误的原因,有的拿到试卷后马上就把有分数的一面翻过去,害怕有人知道了他的分数。因此教师在评讲时不能只是一味地批评学生,如果真正愿意学习并且愿意学好的学生,只要拿到试卷后他已经知道自己的差距了,再说他是木脑袋将会使他丧失学习的信心,如果是不愿意学习的学生,你说他是木脑袋也不起作用,他还会说是你老师没有把他教懂。我们也许经常听老师不耐烦地说,我对这种题已经讲过好多遍了,你还要错,这只能说明两方面的问题,一是你该不该讲,也就是说既然学生不能掌握,你为什么还要讲呢,二是你原来可能就根本没有讲好,或者没有向学生讲懂,因此评讲时批评抱怨学生没有一点作用。在评讲过程中,应该是激励学生,对于回答得好的要及时表扬,要评出信心,并且应将激励贯穿于评讲的始终。对一直较好的学生要激励他们找准差距;对进步大的学生要激励他们更加进步;对考得不好或者学习基础差的学生要找其闪光点,激励他们的学习兴趣和信心。通过讲评,充分调动各类学生学习积极性,促进智力因素与非智力因素协调发展,从而实现大面积提高教学质量的目的。
第2篇:六级数学月考试卷讲评课教学设计
六年级数学月考试卷讲评课教学设计
八一希望小学 韩海泉
教学目标
1.明确试卷存在的错误及原因,强化知识的薄弱环节。 2.培养学生养成课前独立订正的良好习惯。
3.树立严谨的学习态度,自觉查漏补缺,认真订正试卷错误。 教学重点
1.教师根据学生试卷中较为普遍的问题,归纳、整理学生知识上的不足和答题方法、答题思路上的欠缺,使试卷分析更有针对性。
2.要求学生课前独立订正试卷,自己查漏补缺,最后确定自己不能解决的问题。 教学难点
学生不能查找出自己存在的错因及解决方法。教学过程
一、基本情况分析:
全班人数37人,参加考试人数33人,及格数32,及格率为96%,其中成绩较好的有:李欣,徐振辉,刘鑫鑫,宋鹏飞 张丹.需要加倍努力的有:刘新月,宋占鑫,邓影。
(一)试卷整体分析 1.分析试卷:
(1)试卷的试题的形式与平常单元测试的要求一致。(2)试卷的知识点分布,基础知识、基本技能的应用安排较合理。
(3)试卷的难度系数控制在7:2:1。2.分析学生:
(1)学生的书写不够工整,有涂改的现象。
(2)学生的答题不够规范,部分学生不会表达自己的意思。(3)填空、选择题及解比例部分做得较好,但拓展部分问题较多。
二、试卷讲评流程
(一)检查学生小组纠正错误情况—分类讲解—小结—巩固练习—再次检测—完成满分卷。
(二)重点题目分析及知识拓展 1.填空题。
(1)第1题到第3题考察知识点为负数的认识,这部分学生完成得较好,得分率较高。
(2)第4题到第7题是考察圆柱和圆锥的知识的应用,前两题同学们的得分率较高,但第7题失分很严重。①让学生说说自己做错的原因,并让做对的同学说说自己的想法。
②师演示教具,重点讲评第7题的解题方法。③这道题还有什么疑问吗? 2.判断题。这一次的考试,判断题完成得很好,满分的不少,只错一题的却很多。3.选择题。
①第3题,是考察圆柱侧面展开图的理解及应用,在这道题里许多同学丢分了。主要原因是:没有理解在什么情况下圆柱侧面展开后是一个正方形。更没有理解高与半径的关系应该怎样去求。
师重点讲解第3题的解题方法,必要时可以以题多解。②第4题,师让学生说说理由。③即时练习。4.计算与操作题。
①这次的解下面的比例与画一画,得满分的同学很多。②在计算下面零件的体积这道题中,丢分的有不少。让学生说说求零件的体积就是求哪些图形的体积的和。师通过教具演示分析,让学生明白道理。
(三)小结。
希望同学们认真订正,从中汲取经验,使知识和能力再上一个台阶。
(四)跟踪练习
(五)布置作业 (再次检测题)
第3篇:靳祥民 月考试卷讲评课反思
《月考试卷讲评课》反思
本节课通过审案子,把犯人押解公堂的活动形式进行试卷讲评课,激发了学生的兴趣,调动了学生的积极性。体现了学生的主体性,锻炼了学生的语言表达能力。在活动中掌握了知识。分析试卷内容,我发现存在的主要问题是:填空题不等式的性质和不等式组求参数取值范围的题目掌握不熟练。复杂不等式的求解仍需加强。二元一次方程组和不等式组结合的题目学生仍有问题。最后一个大题方案分配问题,找不等关系学生有困难。主要存在问题是计算、分析能力差。为此,在以后的学习过程中我们需要改进的地方是:加强学生计算能力的培养。通过解二元一次方程组和不等式组再次训练学困生的计算能力。根据月考试卷进行这两章的专题复习让学生多见一些中考题型,提高学生分析解决问题的能力。
第4篇:高三英语月考试卷
高三英语月考试卷
第一部分:语言知识运用 一.语法和词汇知识
A.disappearB.fallC.failD.damage 2.I can ___the house being untidy, but I hate it if it's not clean.A.come up withB.put up withC.turn toD.stick to 3.I think the way ______ he looks at problems is wrong.A by whichB in whatC whichD /
yourself.A.rather thanB.other thanC.more thanD.better than story shows the most imagination.A.thatB.whichC.whoseD.what
man.A.a;aB.a;theC.the;theD.a;不填 7.—We could invite John and Barbara to the Friday night party?—Yes,A.Why not B.what forC. whyD.what
8.I like such houses with beautiful gardens in front ,but I don’t have enough money to buy_____
A itB oneC thatD this
9.However much you regret doing this ,there is ______ you can do about it now.A everythingB anythingC somethingD nothing
10.A clean environment can help the city bid for the Olympics, which_______ will promote its economic development.A in natureB in returnC in turnD in fact 11.—what’s your plan for this winter vacation?
---I’ll take an expre train to Dalian for my holiday _______ school ends.A whileB untilC immediatelyD unle
12.The engineers are so busy that they have no time for outdoor sports activities,_______ they have the interest.A whereverB as ifC even ifD whenever
13.Both teams are among the most excellent.We mustn’t mi the _______ game.A strongB difficultC closeD crazy
14.As their memories decline ,some old people tend to be talkative because they ______ forget what has just been said.A anxiouslyB particularlyC easilyD hardly
15.When you are in trouble , you may _______ your teacher and clamates for help.A turn awayB turn aroundC turn backD turn to16.---Can I pay the bill by check ?
----Sorry, sir.But it is the management rules of our hotel that payment ______ be made in cash.A shallB needC willD can
17.______ your letter ,I would have started off two days ago.A If I receivedB Should I receivedC If I could have receivedD Had I received
18.The teacher, together with 6 girls and 8 boys of her cla, ________ visiting a museum when the earthquake struck.A wasB isC wereD had been
19.The flowers ______ sweet in the botanic garden ,which attracted the visitors to the beauty of nature.A to smellB smelledC smellingD are smelled
20.The construction of the new trade center started two years ago, but it ______ so far due to various reasons.A has not completedB has not been completedC had not completedD had not been completed
21.everyone in our cla works as hard as poible _______ to enter a good college.A to hopeB hopeC hopingD hoped
22.___________, the student insists that he be separated from his deskmate, who is naughty.A To avoid being affectedB To avoid to be affectedC Avoiding being affectedD Avoiding to be affected
23.._____ is known to us all is that the 2014 World Cup will take place in Brazil.AAsB WhatC ThatDIt
24.Do you think the reason __________he gave is believable?A for whichB whichC whyD what
25.I told them not everybody could run as fast as you did,_______ ?A could heB didn’t IC didn’t youD could they 二.完型填空
One day in September we were doing repair work on my parents’ old house to get it ready for my youngest daughter’s wedding.We had to26a great climbing plant that had grown27a roof beam(房梁),so that we could repair the roof and28the walls.When my husband was taking the plant away, he found a29of a blackbird that had made its home in the leaves.He then30something31among that ma of earth and straw of the nest.He broke the earth around it into pieces with his finger tips and, to his32,saw glittering gold.It was a child’s bracelet(手镯).He ran into the house to33me.“You won’t believe that the34blackbirds not only steal the best fruit we35to feed on,” he said,“but they also want their children to36in a cradle(摇摆)of gold!”When my daughter came over on the eve of the37,we told her about this38occurrence.“Don’t you remember, Mother?” she said with a loud39.“When I was eight, you gave me a bracelet that I40a few days later while out playing in the yard? It was this one!”As the bracelet no longer41its owner and was dirty, I decided to take it into my safekeeping.In December of the following year, the young couple’s baby son was baptized(受洗礼).Among the42the newborn baby received, I placed his mother’s bracelet, now shining like53.I hope that if my grandson44loses it, one of the45that live in my backyard is somewhere nearby.26.A.coverB.removeC.growD.water 27.A.acroB.overC.beyondD.through 28.A.buildB.paintC.rescueD.print 29.A.bodyB.babyC.nestD.egg 30.A.movedB.gotC.pickedD.noticed 31.A.niceB.shinyC. colorfulD.special 32.A.horrorB.surpriseC.delightD.disappointment 43.A.askB.tellC.giveD.show 34.A.workingB.cheatingC.dreamingD.thieving 35.A.buyB. storeC. plantD.collect 36.A.lieB.singC.listenD.wait 37.A.partyB.weddingC.birthdayD.Christmas38.A.importantB.strangeC.terribleD.funny 39.A.laughB.sighC. cryD.sound 40.A.hidB.threwC.lostD.broke 41.A.matchedB.satisfiedC.fittedD.interested 42.A.jewelsB.presentsC.clothesD.toys 43.A.attractiveB.goldenC.modernD.new44.A.almostB.justC.evenD.ever 45.A.neighborsB.grandchildrenC.blackbirdsD.mice 三.阅读理解 第一节
A
When I was a boy growing up in New Jersey in the 1960s, we had a milkman delivering milk to our doorstep.His name was Mr.Basille.He wore a white cap and drove a white truck.As a 5-year-old boy, I couldn’t take my eyes off the coin changer fixed to his belt.He noticed this one day during a delivery and gave me a quarter out of his coin changer.Of course, he delivered more than milk.There was cheese, eggs and so on.If we needed to change our order, my mother would pen a note-“Please add a bottle of buttermilk next delivery”-and place it in the box along with the empty bottles.And then, the buttermilk would magically appear.All of this was about more than convenience.There existed a close relationship between families and their milkmen.Mr.Basille even had a key to out house, for those times when it was so cold outside
that we put the box indoors, so that the milk wouldn’t freeze.And I remember Mr.Basille from time to time taking a break at our kitchen table, having a cup of tea and telling stories about his delivery.There is sadly no home milk delivery today.Big companies allowed the production of cheaper milk, thus making it difficult for milkmen to compete.Besides, milk is for sale everywhere, and it may just not have been practical to have a delivery service.Recently, an old milk box in the countryside I saw brought back my childhood memories.I took it home and planted it on the back porch(门廊).Every so often my son’s friends will ask what it is.So I start telling stories of my boyhood, and of the milkman who brought us friendship along with his milk.46.Mr Basille gave the boy a quarter out of his coin changer____.A.to satisfy his curiosity.B.to pay for the delivery
C.to show his magical power.D.to please his mother.47.What can be inferred from the fact that the milkman had the key to the boy’s house? A.He wanted to have tea there.B.He was fully trusted by the family.C.He was treated as a family member.D.He was a respectable person.48.Why does home milk delivery no longer exist? A.Nobody wants to be a milkman now.B.Its service is getting poor..C.It has been driven out of the market.D.It is forbidden by law.49.Why did the author bring back home an old milk box? A.He planted flowers in it.B.He wanted to tell interesting stories.C.He mied it for his milk bottles.D.He mied the good old days.B
Wanted ,Someone for a Ki
We’re looking for producers to join us on the sound of London Ki 100 FM.You’ll work on the station’s music programmes.Music production experience in radio is neceary ,along with rich knowledge of modern dance music.Please apply in writing to Producer Vacancies, Ki 100.Father Christmas
We’re looking for a very special person, preferably over 40 ,to fill our Father Christmas suit.Working days: Every Saturday from November 24 to December 15 and every day from December 17 to December 24 except Sundays, 10:30-16:oo.Excellent pay.Please contact(联系)the Enterprise Shopping Centre, Station Parade, Eastbourne.Accountants Aistant
When you join the team in our Revenue Administration Unit, you will be providing aistance within all parts of the Revenue Division, dealing with post and other general duties.If you are educated to GCSE grade C level we would like to talk to you.This position is equally suitable for a school leaver or for somebody who has office experience.Wealden District Council Software Trainer
If you are aged 24-45 and have experience in teaching and training, you could be the person we are looking for.You should be good at the computer and have some experience in programme writing.You will be allowed to make your own decisions, and to design courses as well as present them.Pay upwards of £15,000 for the right person.Please apply by sending your CV(简历)to MrsR.Oglivie, Palmlace limited.50.Who should you get in touch with if you hope to work in a radio station? A.Mrs R.Oglivie, Palmlace Limited.B.Producer Vacancies, Ki 100.C.The Enterprise Shopping CentreD.Wealden District Council.51.We learn from the ads that the Enterprise Shopping Centre needs a person who __________________.A.is aged between 24 and 40B.may do some training workC.can work for about a month D.should deal with general duties 52.which position is open to recent school graduates? A.Accountants Aistant B.Father Christmas.C.Producer,London Ki D.Software Trainer
53.What kind of person would probably apply to Palmace Limited? A.One with GCSE grade C level.B.One with some office experience.C.One trained in producing music programmes.D.One having good computer knowledge
C
A traveler was paing through a desert on a hot day.He was tired, feeling thirsty and hungry.At least, he needed a shady spot to rest for a while.A big leafy tree came into view at some distance away.He felt glad and said to himself, “Had I water to drink, now.” Yes, he found a gla full of cold water on the ground right in front of him.Then, he wished, “Had I something to eat right here.” Immediately, a variety of dishes appeared before him.He was under the shade of Kalpa-Vriksha—a magical tree.Whoever was under it would have whatever he wished for!
The traveler enjoyed the delicious food.He felt drowsy.He wished for a nice bed.It was granted.He stretched himself comfortably on the soft mattre.He hoped that someone would maage(按摩)
his feet.Yes, a young lady appeared.She started maaging his feet and legs.He now started thinking differently.“How can things happen like this? Is it some kind of a trick played by a magical demon(魔鬼)?” he doubted.Oh, a true demon appeared in place of the nice lady!Within no time the demon started leaping at him, with his mouth wide open.The frightened traveler took to his heels and ran away.54.What will happen if you sit under the magical tree?
A.You will marry a young girl B.You will get what you want..C.You will meet a demon.D.You will get rid of all your trouble.55.The underlined word “drowsy” in the second paragraph means “_______”.A.sleepyB.hungryC.thirstyD.cold
56.How many wishes did the traveler make?A.4B.3C.5D.6.D
Why do men die earlier than women? The latest research makes it known that the reason could be that men’s hearts go into rapid decline when they reach middle age.The largest study of the effects of ageing on the heart has found that women’s longevity may be linked to the fact that their hearts do not lose their pumping power with age.“We have found that the power of the male heart falls by 20-25 percent between 18 and 70 years of age,” said the head of the study, David Goldspink of Liverpool John Moores University in the UK.“Within the heart there are millions of cells that enable it to beat.Between the age of 20 and 70, one-third of those cells die and are not replaced in men,” said Goldspink.“This is part of the ageing proce.”
What surprises scientists is that the female heart sees very little lo of these cells.A healthy 70-year-old woman’s heart could perform almost as well as a 20-year-old one’s.“This gender difference might just explain why women live longer than men,” said Goldspink.They studied more than 250 healthy men and women between the ages of 18 and 80, focusing on healthy persons to remove the confusing influence of disease.“The team has yet to find why ageing takes a greater lo on the male heart,” said Goldspink.The good news is that men can improve the health of their heart with regular exercise.Goldspink streed that women also need regular exercise to prevent their leg muscles becoming smaller and
weaker as they age.57.The underlined word “longevity” in the second paragraph probably refers to “________”.A.healthB.ageingC.long lifeD.effect
58.The text mainly talks about ________.A.hearts and long life
B.women’s ageing proce、C.the gender differenceD.men’s heart cells
59.According to the text, the UK scientists have known that ________.A.women have more cells than men when they are bornB.the female heart loses few of the cells with age
C.women can replace the cells that enable the heart to beatD.women never lose their pumping power with age60.If you want to live longer, you should ________.A.enable your heart to beat much fasterB.find out the reason for ageingC.prevent your cells from being lost
D.exercise regularly to keep your heart healthy61.We can know from the paage that ________.A.the reason why ageing takes a greater lo on the male heart has been found outB.scientists are on the way to finding out why the male heart loses more of the cellsC.the team has done something to prevent the male from suffering the greater loD.women over 70 could lose more heart cells than those at the age of 20
E
The first breath-taking pictures of the Earth taken from space showed it as a solid ball covered by brown land maes and blue-green oceans.We had never seen the Earth from that distance before.To us, it appeared as though the Earth had always looked that way and always would.Scientists now know, however, that the surface of the Earth is not as permanent as we had thought.Scientists explain that the surface of our planet is always moving.Continents moves about the Earth like huge ships at sea.They float on pieces of the Earth’s outer skin.New outer skin is created as melted rock pushed up from below the ocean floor.Old outer skin is destroyed as it rolls down into the hot area and melts again.Only since the 1960s have scientists really began to understand that the planet Earth is a great living machine.Some experts have said this new understanding is one of the most important revolutions in scientific thought.The revolution is based on the work of scientists who study the
movement of the continents—a science called plate tectonics.The modern story of plate tectonics begins with the German scientist Alfred Wegener.Before World War One, Wegener argued that the continents had moved and were still moving.He said the idea first occurred to him when he observed that the coastlines of South America and Africa could fit together like two pieces of a puzzle.He proposed that the two continents might have been one and then split apart.Wegener was not the first person to wonder about the shape of the continents.About 500 years ago, explorers thought about it when they made the first maps of Americas.The explorers noted the east coast of North America and South America would fit almost exactly into the west coast of Europe and South Africa.What the explorers did not do, but Wegener did, was to investigate the idea that the continents move.62.What does the writer mainly tell us in the paage?A.Human’s recognition of the earth’s surface.B.The first breath-taking pictures of the Earth taken from space.C.The German scientist Alfred Wegener.D.The early explorers’ discovery.63.Which of the following is true according to the paage?A.Our ancient thought that the surface of the earth is still.B.We didn’t see the Earth from far away until we saw the picture taken in the space.C.Alfred Wegener was not the first person to investigate the idea that the continents move.D.The coastline of India and Africa fit together.64.The last word of the third paragraph “tectonics” mean “________”.A.study of constructionB.study of architecture
C.structural geologyD.earth surface
65.What did the explorers find?
A.The coastlines of South America and Africa could fit together.B.The coastlines of North America and Africa could fit together.C.The coastlines of North America and India could fit together.D.The east coastlines of North America and the west coast of Europe could fit together.第二节
_66_ One of the best things you can poibly do is to start your own club.It’s great fun especially if you are the sort of person who feels there’s never anything to do during the school holidays.The first thing you need to come up with is an idea for your club._67_ Pets, clothes, pop music or dancing groups, sports, making things? The list is endle.Next you need some friends to be in your club with you._68_ All you need is three or four other people who are interested in the same thing as you.__69_ You should all sit down somewhere together with lots of pieces of paper and write down every name you can think up.That’ll keep you busy for ages.At your first meeting you should make up a rule book.And the first rule should be no grown-ups or little/big brothers or sisters!The best clubs are always secret!
Now you have just about everything you need, except membership cards.These are very important and again you can speed a lot of time making them.__70_ Why not leave some space for a photo of yourself? That will make the membership card really look like it.So there you are, get clubbing!Once you get started you’ll think of loads of more interesting things to do!
A.That’s easy.B.Enjoy your own club!
C.Invite a designer to join you.D.What are you interest in?
E.Summer vacation is just around the corner.F.Then you need to pick a name for your club.G.Use a bright thick pen to make a special design.第二部分:写作 一.短文改错
Last Sunday I saw the worst storm in years.It came sudden and went on for over three hours.After lunch, Iwent into my room to have break.The air was hotter, andall is quiet.Then a strong wind started to blow into myroom.Pieces of paper on my desk flew high into the airand some flew out the open window.As I ran out to catch them, big drop of rain began to fall.When I came back into the house, it raining harder and harder.I tried very hard to close the window.Then I heard a loudly crashing(碰撞的)sound from the back of the house.When I ran out to find that a big tree had fallen down and broke the top of the back room.二.书面表达
假定你是李华,正在一所英国学校学习暑期课程,遇到一些困难,希望得到学校辅导中心(Learning Center)的帮助。根据学校规定,你须书面预约,请按下列要点写一封信: 1.本人简介;2.求助内容;3.约定时间; 4.你的联系方式(Email:lihua@126.com;Phone:12345678)
第5篇:英语月考试卷作文
英语月考试卷作文: Dear Larry,I know you are arriving tomorrow.But I am sorry that I can’t pike you up tomorrow.But you can follow the route(路线)and find my home easily.Go along Heping Street/Road by taxi and turn right at the first croing.Go along Renmin Street/Road and when you see a post office, turn left.Then you can see a red house.That’s my home.It’s near/next to the library.You can find it easily.Unit9测试卷作文:
My hoste is Mrs.Clark.She is a middle—aged housewife(家庭主妇)with curly hair.I really like this outgoing(活泼,外向)woman.We get along well with each other.She always takes care of my daily life.She cooks and washes clothes for me.That makes me feel like at home.What’s more(而且), she is very interested in Chinese food and culture.So she often reads books about China.She hopes to visit China one day.
第6篇:二年级上册语文月考试卷讲评课教案
二年级上册语文月考试卷讲评课教案
教学目标:
1、知识目标:通过讲评试卷,检查出学生不理解或没掌握的知识点,做好查漏补缺工作。
2、能力目标:
(1)培养学生综合分析问题的能力和语言表达能力。
(2)培养学生答题规范和答题技巧的原则。
3、德育目标:
教育学生在答卷时要认真审题,养成良好的习惯 教学重点:生词、选词、阅读 教学难点:阅读
教学方法:讲解法、讨论法 课 型:试卷分析课 教 具:投影
教学过程:
一、试卷分析,简介全班考的总体情况
1、本次考试的内容分为七项内容,内容符合低年级学生的特点,从考查字到词,从词到句到篇,以及音序查字法,始终紧扣本单元教材与生活的实际。
2、从学生的总体成绩来看,比上单元有所进步。本次考试共34 人,最高分 100 分 5 人,最低分 77 分,平均分 91.6 分,及格率,优秀率为 89。100,3、自己在心里估算一下,我大概在班里的什么位置,顺势表扬进步最大和优秀的学生,鼓励退步较大的学生要“加油”。其实一次考试并不代表什么,成绩只属于过去,考得比较理想的可不能骄傲,可以把你的好方法告诉大家,再学学另外的考题小窍门。没考好的也别灰心,想想自己错的原因在哪儿,下次注意不再犯同样的错误就行了。
二、题型存在问题及试题分析:
1、第二题看拼音写词语:学生能较好地完成,有 2 个学生把“兄弟”写成“兄第”。
2、第三题连线:只有一人连错。
3、第七题失分最多,失分原因:学生不认真读短文,不懂题意。
三、订正过程:
(一)学生自由翻看试卷,注意一下哪些题型是较常见的;哪些题型是比较新颖,比较陌生的;哪些是不该答错而答错了,找找自己被扣分的原因在旁边写一写,同时订正一些较简单的错题。
(二)讲评试卷,查疑释疑
1、学生订正错题,同时观察分析:哪道题最容易出错或哪道题需别人帮助的。
2、生提出问题一:投影出示第五题:选词填空
(1)发现一下你错在哪儿?为什么错?
(2)谁全对?请做全对的同学说说当时做这道题是你是怎么想的?还有好方法吗?
(3)老师补充归纳出一些做题的方法:去同存异法进行分析判断,填好后再读一读,可以检查自己的对错。
(4)用上这些方法再来选择一下 过渡:我们说,做题啊,也有小窍门,好方法。读书也一样的,边读边想就是好方法。下面,我们一起去看阅读理解的第一篇短文。
3、生提出问题二:投影出示第七题短文
(1)我们拿到一篇文章,要先干什么?(同桌讨论)
(2)老师总结归纳做题步骤: 一读。边读边标上小节号,不能标落了,再想想短文讲了一件什么事。二读。读文后题目,提高速度,以防漏做。三读。带着问题再读短文。想想要做的题目在短文的哪一段内容中,然后完成短文练习,每完成 1 小题,就在序号上打上小√。四读。要求不出声,再静静地默读短文,检查做得是否正确,有没有漏做了。
(3)交流分析,订正错题 过渡:你看,你们多棒,边学边就给用上了,有收获是一件多么快乐的事。其实,多读课外书多积累,收获会更多的。
四、总结:今天你收获了什么?今后准备怎么做?(指名较多孩子回答)是呀,平时的练习和试卷中,我们大家如果都能做到用心审题,细心答题,有心检查,那一定能向你们的爸爸妈妈和老师交上一份完美的答卷。努力、努力再努力;加油、加油再加油;我们是最棒的!
五、反思:
1、继续加强对基础知识的巩固。
2、要加强同音字的区别。
3、加强阅读训练。
4、培养学生认真审题,细心检查的习惯。
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