论初中英语课堂提问

英浯课堂提问是英语教学中最基本的也是最重要的形式之一,课堂提问是课堂上教师与学生进行交流的主要手段,能促使学生集中注意力,激发学生主动思考,提高思维能力及表达能力。但目前一部分老师还存在着忽视课堂提问的不良倾向,他们并没有开展恰当的课堂提问。作者认为,在初中英语课堂教学中,必须开展恰当的课堂提问,因为恰当的课堂提问有重大意义。教师应精心设计课堂提问并遵循一些基本的教学原则,教师还应根据不同的问题采用不同的提问策略。     

大学英语课堂提问探析

课堂提问是英语课堂教学的重要组成部分，恰当的课堂提问能给学生提供语言实践的机会和环境，激发学生的学习兴趣和调动学生学习积极性，使学生成为课堂的主体，提高课堂教学的实效性。从大学英语课堂提问的重要性以及大学英语课堂提问存在的问题出发，提出课堂提问的策略和方法。     

提高初中英语课堂提问的策略

课堂提问是英语语言训练中最常用的切实可行的教学手段之一。课堂提问是有效教学的重要途径,它既是一项重要的教学手段,也是课堂教学的核心。特别是初中英语教师更应该在调动学生进行积极思维的基础上,保护学生的表达欲望,让学生敢想敢说,敢提问、多提问,勇争辩,让每一个学生都能在无拘无束的自由畅,最大限度地释放各自的潜能。在初中英语课堂上如何巧妙地运用提问的技巧和手段,来提高学生的英语学习兴趣和语言交流能力呢？笔者认为：创设氛围,激发学生回答问题的热情;课堂提问要有情感性,让学生产生共鸣;要及时鼓励,让学生体验成功的喜悦;课堂提问要注重互换性,让学生成为课堂的主角;课堂提问要有层次性,让不同的学生有所学;给予学生充足的思考时间,让学生有话可说。     

如何提高小学数学课堂提问的有效性

课堂提问是课堂教学的重要组成部分,是师生交流的最主要的手段,是发展学生思维、促进学生学习的重要方式。如何让课堂提问更有效,这是大家理应重视的问题。怎样才能提高小学数学课堂提问的有效性？提问要激发学生的学习兴趣;提问要给学生留有探索的空间;提问要有明确的针对性等等。     

小学数学课堂提问有效策略浅谈

课堂提问是老师和学生面对面进行的一种教和学的双边互动。有效课堂提问对促进三维目标达成，学生思维发展起着至关重要的作用。根据笔者的调查，目前课堂提问现状并不乐观，无效提问现象较为突出，致使课堂教学效率低下，学生思维发展受阻。由此，教师应树立正确的课堂观，更新提问观念，同时应提高课堂提问技巧。     

浅谈公共英语课堂教学中的提问艺术

课堂提问是课堂教学的重要组成部分,对提高学生学习英语的兴趣,挖掘学生学习英语的潜能,起着至关重要的作用。为此,教师应优化设计提问内容,掌握课堂提问技巧,使课堂提问成为"提高英语课堂教学质量"的有效途径。     

论高校专业英语教师课堂提问技巧

大学英语课堂提问是课堂教学的重要组成部分,恰当的课堂提问能给学生提供语言实践和语言思维的机会和环境,能激发学生的学习兴趣和调动学生的学习积极性.本文从课堂提问存在的问题出发,对课堂提问的改进措施和设计进行分析及论述.     

试析提高高中数学课堂提问有效性的对策

课堂提问是课堂教学必不可少的方式和手段，有效的课堂提问，往往能够促进课堂教学效率的提高。在高中数学教学中有效的课堂提问能够激发学生对学习的探知欲望，有利于调动学生的思维，进而达到教学目标。本文通过对高中数学课堂提问所存在的问题进行深入分析研究，并提出了促进高中数学课堂提问有效性的对策。     

大学英语课堂提问的使用及其效果研究

课堂提问是组织课堂教学的中心环节,在教学中起着十分重要的作用。研究探讨教师课堂提问行为的特点、学生对教师提问行为的期望以及对教师提问的评价,进而研究如何设计科学的提问方式,培养学生的学习兴趣,提高学生的语言表达能力。     

论化学课堂提问方略

课堂提问是课堂教育中师生相互交流、相互撞击的重要双边教学形式,能促使学生利用原有知识对当前问题进行分析、思考和想象,能激发学生的学习兴趣,训练思维品质,提高思维能力。教师对化学课堂提问的设计,应围绕提问时的语言要求、课堂提问的方式、提问的内容三个方面进行。     

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.     

A computer generator for randomly layered structures

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

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。     

Exciton Seebeck in Molecular Systems

Various applications relevant to the exciton dynamics,such as the organic solar cell,the large-area organic light-emitting diodes and the thermoelectricity,are operating under temperature gradient.The potential abnormal behavior of the exicton dynamics driven by the temperature difference may affect the efficiency and performance of the corresponding devices.In the above situations,the exciton dynamics under temperature difference is mixed with     

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     

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

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An on-line scaling method for improving scalability of a database cluster

The explosive growth of the Internet and database applications has driven database to be more scalable and available, and able to support on-line scaling without interrupting service. To support more client's queries without downtime and degrading the response time, more nodes have to be scaled up while the database is running. This paper presents the overview of scalable and available database that satisfies the above characteristics. And we propose a novel on-line scaling method. Our method improves the existing on-line scaling method for fast response time and higher throughputs. Our proposed method reduces unnecessary network use, i.e. , we decrease the number of data copy by reusing the backup data. Also, our on-line scaling operation can be processed parallel by selecting adequate nodes as new node. Our performance study shows that our method results in significant reduction in data copy time.     

An improved R-tree based on childnode''s probability

R-Tree is a good structure for spatial searching. But in this indexing structure,either the sequence of nodes in the same level or sequence of traveling these nodes when queries are made is random. Since the possibility that the object appears in different MBR which have the same parents node is different, if we make the subnode who has the most possibility be traveled first, the time cost will be decreased in most of the cases. In some case, the possibility of a point belong to a rectangle will shows direct proportion with the size of the rectangle. But this conclusion is based on an assumption that the objects are symmetrically distributing in the area and this assumption is not always coming into existence. Now we found a more direct parameter to scale the possibility and made a little change on the structure of R-tree, to increase the possibility of founding the satisfying answer in the front sub trees. We names this structure probability based arranged R-tree (PBAR-tree).     

Integrating GIS Web services based on mediating architecture

The geographic information service is enabled by the advancements in general Web service technology and the focused efforts of the OGC in defining XML-based Web GIS service. Based on these models, this paper addresses the issue of services chaining,the process of combining or pipelining results from several interoperable GIS Web Services to create a customized solution. This paper presents a mediated chaining architecture in which a specific service takes responsibility for performing the process that describes a service chain. We designed the Spatial Information Process Language (SIPL) for dynamic modeling and describing the service chain, also a prototype of the Spatial Information Process Execution Engine (SIPEE) is implemented for executing processes written in SIPL. Discussion of measures to improve the functionality and performance of such system will be included.     

Tracking data management using topology of moving object database system for moving object constrained trajectory in LBS application

Advances in wireless technologies and positioning technologies and spread of wireless devices, an interest in LBS (Location Based Service) is arising. To provide location based service, tracking data should have been stored in moving object database management system (called MODBMS) with proper policies and managed efficiently. So the methods which acquire the location information at regular time intervals then, store and manage have been studied. In this paper, we suggest tracking data management techniques using topology that is corresponding to the moving path of moving object. In our techniques, we update the MODBMS when moving object arrived at a street intersection or a curved road which is represented as the node in topology and predict the location at past and future with attribute of topology and linear function. In this technique, location data that are corresponding to the node in topology are stored, thus reduce the number of update and amount of data. Also in case predicting the location,because topology are used as well as existing location information, accuracy for prediction is increased than applying linear function or spline function.