高考考生物理观念发展水平的诊断与分析———以高考天津物理试卷为例

在教育部颁布的《普通高中物理课程标准(2017版)》中,凝练了学科核心素养。为帮助教师了解学生核心素养发展水平,推进基于核心素养的教学,天津市高考评价项目物理学科组以2018年天津市高考物理试卷实测数据和抽样题卡为依据,结合往年相关试题的作答情况,对本市高中学生物理观念的发展状况进行分析,找出学生的优势和不足,并据此提出在教学中落实核心素养培养的具体建议。     

Simple Preparation of Spherical Activated Carbon with Mesoporous Structure from Phenolic Resol and Associated Catalytic Performance in Isobutane Dehydrogenation

This study provides a detailed report on the synthesis of spherical activated carbon with mesoporous structure using a soluble low molecular weight phenolic resol precursor through an ammonium alginate assisted sol–gel method. The effects of calcinating temperature and the addition of CaCO_3 as a pore-enlarging agent on texture structure and catalytic performance in isobutane dehydrogenation to isobutene were investigated. Characterization of N_2 sorption,mechanical strength tests,and optical photographs confirmed that the obtained carbon materials had high mechanical strength,a good degree of sphericity,and a large surface area. Introducing CaCO_3 as a pore-enlarging agent during the preparation process promoted the formation of a mesoporous structure of carbon spheres and evidently increased the surface area and oxygen content,which can improve isobutane conversion and isobutene selectivity of these carbon spheres. The conversion of isobutane reached up to 28% for this spherical activated carbon,and the selectivity of isobutene reached up to 96%. Isobutane conversion increased with an increase in calcination temperature due to an increase in the oxygen content,whereas the selectivity of isobutene decreased due to the slight decrease in the specific surface area.     

21世纪《三国演义》军事谋略研究应用综述

《三国演义》作为我国古代一部兵书宝典,其中所展示的军事谋略一直为人们喜爱和重视。20世纪80年代开始,对其军事谋略的研究逐渐增多,从军事战略、军事心理到把其和我国古代其他兵法作品中的军事谋略进行比较。同时,这些军事谋略也被广泛运用到人才管理和企业经营等领域,对这些行业的发展起到了积极作用。21世纪以来,对《三国演义》军事谋略上述方面的探究继续深入和扩展,同时也出现了《三国演义》军事谋略与教育、影视、新世纪网络小说等新的研究方向。     

Promoting cognitive and social aspects of inquiry through classroom discourse

We investigated how Chinese physics teachers structured classroom discourse to support the cognitive and social aspects of inquiry-based science learning. Regarding the cognitive aspect, we examined to what extent the cognitive processes underlying the scientific skills and the disciplinary reasoning behind the content knowledge were taught. Regarding the social aspect, we examined how classroom discourse supported student learning in terms of students' opportunities to talk and interaction patterns. Our participants were 17 physics teachers who were actively engaged in teacher education programs in universities and professional development programs in local school districts. We analyzed one lesson video from each participating teacher. The results suggest both promises and challenges. Regarding the cognitive aspect of inquiry, the teachers in general recognized the importance of teaching the cognitive processes and disciplinary reasoning. However, they were less likely to address common intuitive ideas about science concepts and principles. Regarding the social aspect of inquiry, the teachers frequently interacted with students in class. However, it appeared that facilitating conversations among students and prompting students to talk about their own ideas are challenging. We discuss the implications of these findings for teacher education programs and professional development programs in China.     

论书法技法对当前书法发展的影响

书法是我国传统古老的一门艺术 ,具有很高的学术价值及文化品位。以往由于书法的实用性 ,人们往往重视技法而轻理论。但发展至今当书法退出实用领域后 ,人们又过分强调理论而轻视技法 ,以至于影响到了书法的发展。因此 ,必须对书法技法对当前书法发展的影响及意义进行必要的研究。     

简论福州漆器的经典工艺

福州漆艺有一整套独特的表现手段和制作体系,其中许多工艺技术例如器型工艺、彩髹手段、装饰技法、推光技术仍然代表着当今世界漆艺的最高水平,它是历代漆艺家辛勤劳动的成果,具有极高的审美价值和学术研究价值.总结和整理这些经典技艺,对于传统优秀成果的继承与发展都具有重要的意义.     

从华东煤矿公司看刘鸿生的辩证发展观

刘鸿生投资华东煤矿公司反映了其具有辩证色彩的经济思想：既要顺应时代热潮，又须开拓新路；既要垂直伸延，又须横向联合；既要分散投资，又须集中分散投资，又须集中管理；既要立足经济中心，又须发展周边地区。     

汉语中级精读教材的分析与思考

20世纪90年代以来,中级汉语精读教材不断推出,较以前有了很大改进,但还存在一些不足.本文选取了6种新教材从3个方面进行了分析,首先是生词的控制和编排,第二是重点词语和语法项目的注释,第三是练习的设计,并提出了相应的改进措施.     

不同文化背景下的"女强人"人生轨迹--王熙凤与思嘉丽形象比较

王熙凤和思嘉丽分别是东西方小说的“女强人”形象代表,她们为权力而奋斗的故事是“女强人”的成功之道。性格的差异和手段的不同,使她俩有着不同的命运,她们的形象也闪烁出不同的光芒。通过分析两者的性格和命运来探讨她们形象的异同。     

浅谈音乐教学审美能力的培养

在音乐教学中,学习、理解和欣赏音乐作品是提高学生音乐审美能力的有效途径。因此,我们必须通过音乐作品对学生进行情感、情操以审美为核心的音乐审美教育,在教学中贯穿以音乐审美为核心的思想,在潜移默化中培养学生的音乐艺术审美能力。