创造能力在化学教学中的培养

培养学生的创造能力使学生具有独立思考、善于应变、勇于创新的现代素质已成为现代教育的主要目标。而创造性思维是创造能力的核心,创造能力的发展首先依赖于创造性思维。因此,在中学化学教学中,应主要通过培养学生的创造思维能力这一途径,变学生由被动学习为主动学习,激发学生持久的学习兴趣,来达到培养学生创造能力的目的。     

培养和发展学生创造性思维的尝试

培养和发展学生的创造性思维是实施素质教育的重要任务.在中学化学教学中,应该创设问题情景、激发好奇心,培养学生的创造动机;重视培养和发展学生的发散思维;鼓励直觉思维并要求与分析思维相结合;克服思维定势的消极影响,发展创造性思维.     

培养学生的创造个性

[理念]新课程改革的目标，其核心内容就是从学生的发展规律出发，充分开发他们学习与发展的潜能，在全面提高学生基本素质的基础上，加强对学生创造个性的培养。在教学实践中，我们要了解和认识学生的个性心理特点，努力创设适合学生个性发展的空间，在师生和生生的互动中，激发学生合作探究的欲望，从而培养学生具有创造性的思维个性和主动求知的良好心态。     

在小学语文教学中如何培养学生自主学习的能力

要培养学生自主学习的能力,需要教师发挥好主导作用.激发兴趣能够为学生创设自主学习的情境.主动探究能够保护学生自主学习的创造性.语文实践活动能锻炼学生多方面的能力.只有为学生创造自主学习的条件,为学生的自主学习提供全方位的优质服务,学生的自主学习才会持久.     

数学“问题导学”法初探

问题是思维的起点,数学作为一门自然学科,它可以把课内知识与课外知识融为一体,教师要善于设定学生能够独立探究的一系列问题,让学生始终带着问题去学习,带着问题去探究,从而发现问题,解决问题,引导学生自己主动的、积极去探索和获取知识.在问题导学中,一定要注意培养学生的问题意识,培养学生独立思考和合作学习的习惯和能力,只有这样,才能使学生的科学精神和人文素养和谐发展,把新课程的课堂教学改革真正落到实处.     

如何在语文教学中运用电教媒体创新品质

在小学语文教学中,应注重培养学生的创新品质.课堂上,教师要营造一种民主、和谐、富有创造性的学习环境,诱发学生的好奇心,鼓励学生大胆尝试,引导学生展开想象,变"机械接受"为"主动探究",变"个人学习"为"合作发展",变"单一思维"为"多向拓展",以培养学生的创新品质.     

论学生主体的能动性、自主性与创造性

笔者从发挥学习的能动性、培养学习的自主性和增进学习的创造性这三个方面入手阐述在高中思想政治课堂教学中如何实现学生的主体性问题,使学生自觉探究新知,主动学习,真正体验到学习的快乐,从而促进身心全面和谐地发展.     

历史教学中学生创造性思维能力的培养

历史教学中学生创造性思维能力的培养仲明创造性思维，在中学历史课中表现为学生对发现和提出问题有浓厚兴趣，对独立思维有快慰感，对独立解决问题有心情舒畅的满足感。创造性思维的培养能有效地激发学生学习历史的强烈兴趣，变被动学习为主动学习，使其自觉地在历史园地...     

数学教育与创造性思维的培养

通过数学教育培养学生的思维特别是创造性思维是数学教育的重要目的,也是数学教育目的的文化性内涵之一,在数学教育中,应通过以下措施和途径来培养学生创造性思维;1）改革传统教学模式,提高学生学习的主体性和积极性;2）建立具有数学创造过程的课程体系;3）创设自由愉快的教学情境,促进创造性思维的发展;4）搞活思维训练启发创新意识;5）锻炼创造想象,活跃创造性思维的发展;6）创造性地评价学生的创造活动,激发学生的创造热情     

创造性思维模式在我国民族院校健美操动作教学中的应用

培养和造就创造性人才是时代的要求,也是少数民族院校教育的根本任务。本文从健美操项目出发,结合我国民族院校大学生的特点,将创造性思维模式的培养融入教学之中.变创新为主动,培养学生的创造能力,为学生养成终身体育意识和培养创造性人才打下良好的基础,以推动民族院校体育教学改革的健康发展。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

《Chinese Science Bulletin》SUBJECT INDEX TO VOLUME 59(2014)

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Achieving Unusual States of Matter Under High Pressure

The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to