听广播 练听力

听是语言交际中使用频率最高的语言技能。也 是外语学习中的一大难题，通过利用国外电台节目训练听力，并辅之以扩大词汇量、加 强阅读、重视超语言现象等方法，可以帮助学生提高听力。     

英语听力教学中的学习策略

听力策略是第二语言习得理论中的研究领域之一,作为语言学习的一个重要组成部分,听力策略的研究已经开始受到人们的关注。Dunkel和Feyten对语言输入在语言学习中的作用进行了研究,论证了听力的重要性,指出听力策略的研究已经成为第二语言习得理论的研究焦点。该文从元认知策略,认知策略和社会、情感策略三方面对学习策略进行阐述,有利于培养和提高学生的自主学习能力和听力理解能力,并提出听前、听中、听后阶段的听力策略教学模式。     

文化背景知识与英语听力理解

从阐述语言与文化的关系引出文化背景知识在听力理解中的重要作用，并通过分析听力理解过程以及语言与思维的关系，提出了如何加强背景知识的传授和学习来提高听力理解能力。     

小议外语听力理解教学中非语言图式的激活

听力理解是一种复杂的心理过程,听力理解的成功需要语言图式、内容图式和形式图式的共同作用。而图式理论中的非语言图式对听力理解的作用更大。因此,语言教师可以从听前阶段、听中阶段和听后阶段三个阶段来激活学生的非语言图式知识。     

语言输出在大学英语听力教学中的应用

听力理解能力是语言学习者必须掌握的一项基本技能,影响听力理解能力的因素很多．相关的研究大多集中在听话者因素,听力策略等方面往往忽略了语言输出在大学英语听力教学中的应用．本文详述了语言输出的应用在大学听力课堂上的意义和必要性,并提出了改革听力教学的具体措施和方法。     

关联理论在听力教学中的应用

听力理解是一项重要的语言技能,也是教学中的难点和重点。本文从认知心理学角度探讨关联理论在英语听力教学中的价值,以改进教学,提高学生的听力技能。     

跨文化意识与英语听力教学

听是语言交际中的重要环节之一,语言的听力训练不仅要训练听的技能,更要注重克服影响效果的诸多障碍.文化差异及文化空缺就是影响听力理解的因素之一.本文从听力理解的性质及听力学习的过程和规律出发,针对文化差异及文化空缺对听力理解产生的障碍,采取合适的方式培养训练学生文化交际听力技能,从而使听力和跨文化交际能力得到共同提高.     

语言测试的真实性原则在大学英语四级听力考试中的应用

真实性原则不仅是语言测试的一项重要特征,更成为了检测语言测试好坏的一条关键标准。在很大程度上,英语听力测试的真实性决定了英语听力测试的实际信度和效度。所以,研究语言测试的真实性在大学英语四级听力考试中的具体应用对于提高英语听力测试的信度与效度有着至关重要的作用。本文就从语言测试的真实性原则出发,探讨了在当前大学英语听力测试的现状之下,如何把握听力测试中的真实性原则。     

语言习得理论指导下的听力训练

文章就语言习得理论的基本内容以及语言习得理论与听力教学的联系,即语言习得理论强调在真实而丰富的语言环境中实现“听力”作为输入型技能在语言习惯形成中的作用,论述了如何将语言习得理论用于听力教学和训练,即积极创造语言环境,经过持之以恒的听的训练,增强语感,从而达到培养学生听力技能的目的。     

初中英语听力教学研究

“听”作为人类言语交际方式之一，在信息剧增、国际交往日益频繁的今天更具有重要意义，此，如何提高听力始终为人们所关注。现代语言教育理论高度重视听在语言学习和语言使用中的作用，听教学受忽视和缺乏科学性的状况正在改变。本文选取了初中英语教学四大语言技能之一的听力教学作为究对象，从英语听力教学改革的理念出发，对初中英语听力存在的问题做了比较详尽的分析和探讨，提出一些行之有效的解决初中英语听力问题的对策与方法。     

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.     

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.     

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.