多媒体教学的几点思考

利用多媒体辅助教学,极大地促进了数学学科教学水平的发展,提高了教学效果,但是,多媒体辅助教学作为一种崭新的教学方式进入课堂,必将与原有的教学结构、内容和方法等各种因素产生矛盾,同时过分地依赖计算机教学,对教学也会产生一些负面影响。因此教师要加强理论学习与研究,树立先进的教学理念和思想;对信息技术与课程整合要有正确的认识;在整合的背景下,合理地进行教学设计。     

双语教学的几点思考

本文探讨了双语教学的几点思考,就这些思考发表了看法,提出了相应的观点.只有加强双语师资建设推动双语教学进程,双语教学首先提高教师素质,双语教学中既有矛盾也有统一,双语教学的全球化.     

多媒体教学中的几点思考

多媒体辅助教学使课堂教学的形式和手段都发生了变化,虽然在教学过程中会有许多的磨合和不完善,但它以其直观、立体、多层次、多视角的全新教学思路,以声光图像等综合共融的立体效果赢得师生的青睐.     

高中数学教学几点反思

随着高中新课程的改革,教学反思已经成为教学过程中的一个重要环节,它是教师探索思考课堂教学经验,不断提高自身素质和教学质量的一个重要手段。教师可通过观察,评课,同事交流,验证学生成绩,不断深化对课堂教学的思考,提高教学水平。     

有关教学的几点反思

教学反思是一种良好的教学习惯。能否坚持对自己的教学行为进行反思是一个教师进取心、责任心、勇气和意志力的表现,是教师能否在教学事业上取得成功的决定因素。     

高职高专英语教学的几点体会

在将近十二年的教学实践中,尤其是近几年从事高职高专的英语教学,根据自己所教学生的英语水平、教学反馈情况以及对自身的教学进行反思。     

面线点教学法研究

通过教学、教材改革以及教师队伍建设，改变教学中点的传统教学思维模式，实行由浅入深的面线点教学方式，探索出一条适合我国实际的教学方法，培养出系统性思维、创新工作的优秀人才，让我们拥有世界的未来。     

浅谈静力学教学中的几点体会

工程力学中的静力学课程,是理工科学校一门重要的技术基础学科,不仅概念性很强,其中还包含丰富的内容,尤其在教学中,要力求讲透。本文从静力学教学入手,阐述了静力学的教学重点以及在静力学教学中的几点体会,力图把静力学的教学提高到一个新高度。     

建筑设备教学改革过程中的几点探讨

建筑设备工程是建筑类专业的一门重要的专业理论课程,对各专业的学习有着非常重要的意义。目前,在教学过程中存在一些问题：课时少,内容多,不同专业的教学侧重点不突出,教学过程单一,考核方法过于简单。因此,作者从教学目标、教学环节、教学手段、考核方式等方面都提出了一些改革措施,以不断提高教学质量,培养合格的建筑类人才。     

高中物理情境教学的几点尝试

高中物理教学并非枯燥乏味的,如何让我们的课堂更加的生动有趣,如何提高教学效率,一直是每位教师深思的问题。创设优秀的物理情境,可全面地辅助教学,从导入新课、概念讲解、难点突破到习题课等教学过程,情境教学都应当贯穿其中。     

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.     

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.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

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.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the