元认知策略与英语专业听力教学

外语教师如何应对新形势下新的要求,从实际的教学条件出发,采取切实可行的措施提高听力教学质量是摆在我们面前的一个重要课题。元认知策略是重要的外语学习策略之一。文章通过元认知的概念、元认知策略与听力理解的关系,探讨了元认知策略在英语专业听力教学中的运用,即课前策略、课堂策略、课后策略的听力教学模式,有助于对学生听力自主学习能力的培养,增强他们的自主学习意识,改进学生的课外自主听力状况,提高听力教学质量,为大学英语专业听力教学更具有针对性和有效性提供参考。     

元认知策略与非英语专业研究生听力教学

针对非英语专业研究生英语听力教学现状，依据元认知理论，通过分析元认知及其主要内容、元认知策略的界定及分类，试图在元认知理论和非英语专业研究生听力教学之间搭建一个平台，把元认知和元认知策略引入非英语专业研究生听力教学实践，帮助学生培养元认知意识，切实提高听力水平。     

英语听力课外学习中元认知计划策略的运用

以198名非英语专业和英语专业学生为对象．对他们在课外英语听力学习中元认知计划策略的使用进行了调查研究。数据分析结果显示．非专业学生计划策略频率较低，而且明显低于专业学生。相关性分析表明，学习观念与学习动机对计划影响的程度不同。此外，元认知知识也直接关系到计划的制定与实施。因此，听力教师可指导学生合理制定计划，提高课外听力学习的效率。     

元认知策略的运用与学生听力水平的相关研究

在外语教学和研究中,元认知策略是一项非常重要的认知策略,包括计划策略,监控策略和评估策略。文章对90名在校非英语专业大一学生的英语听力学习进行了实证研究,以讨论灵活应用元认知策略是否有助于提高学生的英语听力水平。并探讨了在实际英语教学中如何将元认知策略用于促进学生听力水平。     

英语专业新生听力元认知水平与其听力学习状况分析

本文以元认知理论基础,重点从对听力学习材料的认识、对听力学习任务的认识、对本人听力能力的认识及对有效听力学习策略的认识等几个方面分析了英语专业新生听力学习中反映出的普遍存在的听力元认知知识不足的现状,并指出教师应该采取相应对策,提高新生听力元认知知识水平,教会学生如何学习,从而有效提高听力学习效果。     

浅析元认知策略下的大学英语听力自主学习

听力一直是在英语学习中困扰学生的问题之一。由于受到课程设置、学时等限制,单靠课堂教学无法满足学生的听力学习需求。元认知策略可以帮助学习者有效地计划、监控和调整自己的学习过程和效果。引导学生在听力自主学习中运用元认知策略,不仅能提高学生的英语听力水平,同时也能提高学生的自主学习能力。     

元认知策略及其对大学英语听力教学的启示

元认知是认知主体对自身认知活动的认知.元认知能力直接影响着学生的自主学习能力,从而影响学生听力水平的高低.元认知策略对大学英语听力教学有着重要启示,在听力教学中应用元认知策略,可以提高学生自主练习听力的能力,增强听力的独立性和自觉性.从而最终使学生成为独立、自主、高效的学习者.     

元认知策略对大学生英语听力水平的影响研究

大学英语学习中,听力水平的提高对许多学生来说都是一个巨大的挑战。部分专家表示,学习策略尤其是元认知策略对学生的学习效果有较大的影响,那么元认知策略对学生的听力成绩的影响程度有多大？本文作者拟通过对学生进行听力水平测试和问卷调查的方式来分析元认知策略与学生听力成绩的相关性。     

关于高职高专英语专业学生听力策略的调查

本研究采用定量分析的方法,对萍乡高等专科学校286名英语专业大一、大二学生英语听力策略的使用情况进行了调查。结果发现:(1)高职高专英语专业学生英语听力策略使用频率不高。在听英语时采用四大策略,各策略按使用的频率排列,其先后顺序为:社会/情感策略、认知策略、资源策略和元认知策略。(2)在35项具体策略中,学生经常或接近经常使用的8项策略是认识听力理解在英语学习和实际交际中的重要性等,不常或很少使用的3项是课外利用多媒体和网上的听力资源进行听力学习等。     

元认知策略在高职高专大学英语听力教学中的应用

当前高职高专学生英语听力能力薄弱,学习的主动性、自觉性和自主性欠佳,通过在大学英语听力教学中融入元认知策略训练,培养学生的元认知意识,可以更加有效地开展听力学习,突破以往听力学习的瓶颈,提高英语听力水平。     

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.     

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.     

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.