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.     

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.     

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.     

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.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

橡胶颗粒沥青混合料低温抗裂性试验研究

以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.     

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。     

Quantitative trait loci （QTLs） for quality traits related to protein and starch in wheat

Quality traits in wheat （Triticum aestirum L.） were studied by quantitative trait locus （QTL） analysis in a recombinant inbred line （RIL） population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross （ChSh）. Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99-40.52% of phenotypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1 D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster including protein and starch traits on chromosome 1D.     

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…