从大学生有效参与教师话语看教与学的互动性

学生参与教学最基本的形式是上课,场域是课堂,而课堂话语是课堂教学活动的载体,是课堂上教师和学生互动交流的媒介。教师话语可能促进也可能阻碍学生的课堂参与。在学生对教师话语的参与过程中,教师可以通过调整自己的教学话语策略,在有限的课堂教学时间内给学生创造更多的学习和参与课堂活动的机会,从而提高课堂教与学的效益。     

努力实现有效互动优化语文课堂教学

新课程呼唤充满生命力和创造力的课堂，教师应创设民主、宽松的课堂气氛，激发学生情感参与；有效地组织、引导学生积极地投入参与合作探究；着力采用多元参与的互动评价，使学生在愉快的课堂氛围中得到全面发展，以调动每一位学生的学习积极性；并采用现代媒体辅助教学，优化教学手段，让学生在互动中发展。     

浅谈英语课堂组织过程中的发现

针对当前语言课堂的现实,本文以课堂互动、学生参与为切入点,通过分析语言课堂的实质,英语课堂组织过程中的活动,学生对课堂讲授内容的参与、课程设置的参与及教师对学生的评价方式等,发现总结了有利于学生学习和掌握语言的课堂行为。     

论学习文化对亚洲学生在英语国家课堂参与的影响

从学习文化角度探讨了儒家文化影响下的亚洲学生在澳洲教育硕士(TESOL)课堂里的参与情况,以及影响其课堂参与的因素。文章认为这些学生的儒家文化背景在一定程度上阻碍着她们的课堂参与。对教师的高度看重、对自身的高要求、低调而有节制的课堂行为期待被认为是她们课堂参与的阻碍因素。文章建议:亚洲学生应该了解英语国家的学习文化和自身学习文化的差别,正确认识影响课堂参与的消极因素,从而更积极地参与课堂活动,提高学习效果。     

自主 参与——让阅读教学成为学生发展自我的舞台

21世纪的教育强调知识学习的探索性和创新性,作为语文教学的主体阅读教学,更应该着眼于学生的身心、智能的健康发展,让学生在自主参与中生动活泼的发展,在发展中积极的主动参与。课堂是学生发展自我     

如何提高小学生参与数学学习的积极性

数学课堂应是学生积极参与,自主高效的课堂。在教学之中,教师应增强学生的参与意识,让学生积极主动地参与到教学之中。数学教师应在授之以鱼的基础上授之以渔,培养主动参与的能力;利于期待效应,引导学生主动学习操作;因材施教,注重发展学生的个性特长;积极创设良好的学习氛围,引导自觉积极学习。     

主动参与英语课堂活动的现状分析及方法策略

本文通过分析初中生参与课堂教学的重要性,及目前仍然有许多学生不主动参与课堂的现状。提出使学生主动参与课堂的方法和策略。     

“合法性周边参与”对大学英语课堂建设的启示

分析了中国大学英语教学的现状,认为"实践共同体"理论,尤其是其"合法性周边参与"观点对大学生英语学习的优质课堂建设具有重要的启示。只有在课堂中赋予学生足够的参与该实践共同体的"合法性"和"周边性",学生才可能获得课堂所提供的经验和知识,并逐渐取得学习上的更大进步。指出教育工作者应该对学生的不同参与程度以及参与类型有充分的理解和认识,朝着积极的方向引导学生,努力营造一个适合学生参与和学习的课堂环境。     

基于扎根理论的高校大班课堂学生互动参与驱动研究

以淮阴师范学院为例,对来自不同专业的22位大班课堂学生进行深度访谈,运用扎根理论的研究方法,探索性地构建高校大班课堂学生参与互动驱动模型。该模型包括互动参与意识、互动参与驱动设计、互动参与保障机制3个主范畴。其中,互动参与意识是高校大班课堂学生互动参与的内部驱动因素,包括互动参与需求、互动自我效能感知、互动参与态度、互动效力感知4个子范畴;互动参与驱动设计是高校大班课堂学生互动参与的外部驱动因素,包括互动考核制度、互动激励机制、群体压力约束、互动榜样效应4个子范畴;互动参与保障机制是高校大班课堂学生互动参与的调节因素,包括互动参与平台、互动参与氛围、教师引导能力、师生关系质量4个子范畴。     

浅谈如何提高数学课堂效率

数学课堂效率的提高需要全方位调动学生的参与,以学生为主体构建宽松和谐的课堂氛围。良好师生关系是创设优质课堂的前提,教师对学生无私的爱是提高课堂效率的关键。把课堂还给学生,教师引导学生参与教学,培养兴趣,提高课堂的互动性、探究性。＂学以致用＂,把数学引入生活,挖掘数学的学科潜力,贴近学生生活,培养学生动手能力、实践能力,立足课堂,提高效率。     

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.     

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.     

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.     

A computer generator for randomly layered structures

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

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.     

Jane Eyre——A Feminist In The 19th Century

In the 19th century the society was controlled by men, and women were just appendants of them, they had not any rights and freedom. But Jane was an exception, she showed some characteristics of early feminist. Jane showed her characteristics of feminism in three aspects: rebellion, equality, and independence. These characteristics were helpful to her success, and feminism is the only way out for women of that time.     

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-