浅议新课程标准下的数学教师

扑面而来的数学新课程改革,迫切要求广大中学数学教师在前瞻性和现实性相结合上,在理论与实践相结合上,对新课程标准的改革意义、作用和操作予以理解;在规范与创新上对新课程标准的体系结构予以充分的把握.本文从数学新课程标准和新教材的特点出发,分别对数学教师在实施新数学课程中的地位与作用、在新课程教学中的5个转变和教师角色的转变的3个方面进行了探讨.     

浅析数学教师如何适应新课程

新一轮义务教育阶段的课程改革正在向前推进,教材改革已在进行,新教材对数学教师提出了新要求,那么作为数学教师怎样才能尽快的适应新课程,本文将从六个方面阐述新课程下初中数学教师必须具备的基本能力.     

小学数学新课程在重庆地区的适应性调查研究

笔者对小学数学新课程在重庆地区的适应性调查中发现：学生两极分化现象严重,新教材还需进一步完善,数学课程资源缺乏,应试教育的评价机制制约着小学数学新课程改革前进的步伐.对此,本文提出相应的对策与建议,包括加快课程资源的开发,强化教师角色的转变,加强对教师的指导与培训,关注教师职业健康安全,推进教育评价与考试制度的改革以及积极组织在校师范生参与新课改工作等.     

浅议新课程标准下的数学教师

扑面而来的数学新课程改革，迫切要求广大中学数学教师在前瞻性和现实性相结合上，在理论与实践相结合上，对新课程标准的改革意义、作用和操作予以理解；在规范与创新上对新课程标准的体系结构予以充分的把握．本文从数学新课程标准和新教材的特点出发，分别对数学教师在实施新数学课程中的地位与作用、在新课程教学中的5个转变和教师角色的转变的3个方面进行了探讨．     

践行初中物理新课程的感悟

云南省初中课程统一使用人民教育出版社新教材已有5年多的时间,但部分初中物理教师仍然在用老教法"教"新教材,对新教育理念和教学方法仍持片面的理解.从教学实践感悟的角度看,教师要用心去体会新教材,感悟新课标,探究新教法,才能适应新课程改革的需要,不断提高教学质量.     

浅谈学习新课标的体会

新课程教师应关注新的教学的思想,树立新课标理念;教师要关注新教材、熟悉新教材体系;教师要关注学生的学习过程、学习方式,引导学生学会学习;教师要关注课程评价改革,倡导发展性评价.     

新高考背景下重庆市高中数学教师专业素养调查

随着新课程新高考改革的深入推进，提升教师专业素养已成为强化教师专业发展、推动高考综合改革的关键.为探析新高考背景下数学教师专业素养的现状，本研究以重庆市4区(县)110位高中数学教师为研究对象，就教师知识、教师能力和教师信念3个维度展开调查研究.结果显示：重庆市高中数学教师专业素养总体水平较高，在教师知识和教师能力维度的平均得分均高于教师信念维度，涉及新高考内容的一般课程知识、教师监控能力和新高考信念得分较低.鉴于此，应重点关注教师对新高考变革趋势及具体实施环节的学习，通过自主学习、教育培训、合作培育等方式增强教师对新高考相关政策的理解和认同；关注教师监控能力，通过树立科学评价观，扩展多元评价内容与评价主体来提升教师的综合素质评价能力.     

河南省初中数学教师教学反思现状分析

初中数学教师的教学反思水平直接关系到初中数学教师专业化的进程.通过调查研究,对河南省初中数学教师教学反思的现状进行了分析.为了提升初中数学教师的教学反思能力,建议加强初中数学教师教学反思的培训和指导,营造浓郁、宽松的初中数学教师教学反思校园氛围,建立县内学校间教师交流机制,密切高校相关专家与初中一线教师的联系.     

桂东南地区中学英语课堂教学改革存在的问题及对策

目前,桂东南地区中学英语课堂教学改革仍存在一些普遍问题:教师对新课程标准和新教材的理解与适应能力有限,任务型教学法没有得到有效运用,研究性学习和探究活动难以开展,教学方法还是传统的单一的"授-受"教学方式,教学手段较落后,课堂气氛沉闷等;因此,教育主管部门和学校要更新教育观念,通过多渠道加强师资培训,提高教师专业素质.     

浅议中学思想政治教学改革

新一轮课程改革强烈地震撼着传统的课堂教学,对教师的教学提出了新的挑战。新《普通高中思想政治课程标准》中指出:"关注学生的情感、态度和行为表现,倡导开放互动的教学方式与合作探究学习方式,使学生在充满教学民主的过程中,提高主动学习和发展的能力。"因此教师要根据新课程标准的要求来优化课堂教学,立足于新教材的变化来实施教学。     

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.     

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.     

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.     

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。     

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.