提升大学生英语四级写作能力

大学英语四级作文考试是英语素质教育测试的重要组成部分,但也是被普遍认为棘手的一个问题,它制约着学生英语综合应用能力的发展,也影响着学生四级考试的成败。英语四级作文在考试制度、教学设置、学生自身建设等方面都存在着一些问题亟待解决。该文对培养大学生英语四级作文能力进行了一系列探索,提出了一些建议,希望可以帮助学生尽快掌握四级作文测试要求,以及适应社会对人才的多方面素质的要求。     

网络媒介条件下英语写作教师评价与同伴互评对比研究

近年来,写作评价在ESl和EFL领域里引起广泛的关注并得到不尽相同的研究结果。本研究通过问卷调查、t检验和访谈,对比研究网络媒介条件下英语写作教师评价与同伴互评对学生英语写作的影响。结果发现：（1）网络媒介条件下教师评价与同伴互评可行、有效;（2）在中国文化价值影响和EFL语境下,学生更加重视网络媒介条件下的教师评价,因此,教师在教学中应该根据学生的需求把两种评价方式融合一起使用。     

Performance of query processing implementations in ranking-based text retrieval systems using inverted indices

Similarity calculations and document ranking form the computationally expensive parts of query processing in ranking-based text retrieval. In this work, for these calculations, 11 alternative implementation techniques are presented under four different categories, and their asymptotic time and space complexities are investigated. To our knowledge, six of these techniques are not discussed in any other publication before. Furthermore, analytical experiments are carried out on a 30 GB document collection to evaluate the practical performance of different implementations in terms of query processing time and space consumption. Advantages and disadvantages of each technique are illustrated under different querying scenarios, and several experiments that investigate the scalability of the implementations are presented.     

大学英语写作教学中的形成性评价

形成性评价注重对学生的学习过程进行行为研究性的评价,并及时提供反馈,调整课堂教学方法与手段,满足学生的智力需求.它有着科学的概念、特点及其评价手段,将其恰当地运用到大学英语写作课堂的教学实践中进行检验与评估,能及时地引导学生的写作决策与自身评价,激发学生的写作兴趣,增强学生的写作自信心,显著地改善教学效果,有效弥补当前大学英语写作教学中的一些不足,并帮助学生成为自主高效的学习者.     

非计算机专业学生如何学习计算机信息技术

作者从提高应用能力、不断深入学习、培养编程能力等方面阐述了非计算机专业的学生如何学习计算机信息技术。     

网络环境下的原文保障

简述我国网络环境下原文保障的状况，分析了网络环境下原文保障存在的问题，并提出了解决这些问题的具体对策。     

“Oh Yeah,I’m Mexican. What Type are You?” Changing the Way Preservice Teachers Interpret and Respond to the Literate Identities of Children

This writing describes a literacy project between preservice teachers enrolled in a small university in Montana and an inner city school classroom in Kansas. It shows how the preservice teachers and children negotiate meaning at the beginning of the project as well as what the preservice teachers were learning from the children and from their teacher, Scott. Twenty-three third grade children exchanged letters, cards, drawings, autobiographies, and writing about shared literature with 24 preservice teachers for 10 weeks. Scott, the third grade teacher who assisted with the project, was a former student in Rita’s university language arts classroom and was strongly committed to demonstrating to preservice teachers the rewards of teaching in an inner city classroom ... particularly those coming from communities where people of color or linguistic diversity were few. Through shared written responses and the negotiation of meaning between two age groups, this project opened pathways for greater insight into the cultures and lives of children that the university students might otherwise not have known. It also provided myriad glimpses into the lives of real children, each with his or her own interests, life experiences, and expressive modalities thus shaping the perceptions of the preservice teachers about their role as teacher in supporting and responding to the individual strengths of each child.     

试论高校图书馆文献建设——基于馆际互借与文献传递的视角

针对高校图书馆文献资源共享产生与发展的四大因素,指出文献资源共享是高校图书馆发展的必由之路,而文献资源共享的基本方式是馆际互借与文献传递,故高校图书馆应更加重视制定并实施文献资源购买与文献资源共享的平衡原则,有效地创新高校图书馆的传统服务思维和工作模式,与时俱进地构建科学的图书馆文献资源建设体系。     

当代汉语写作“国际化”研究的可能性——以爱荷华“国际写作计划”为例

美国爱荷华城的"国际写作计划"可以作为研究当代汉语写作的"国际化"课题的一个案例。通过对中国到访作家在当地的文学活动的细致、动态的观察和描述,可以多角度、多层次地揭示当代汉语写作"国际化"进程中的种种复杂因素。     

近十五年来我国锻炼心理学研究现状文献计量学分析

采用文献计量学方法,对1990－2005年我国国内发表的锻炼心理学情况进行统计分析,结果表明：发表的锻炼心理学文章呈现阶段性增长,体育科技专业期刊和体育院校学报是刊载论文的主要园地,核心作者的数量和发表的质量有待进一步提高。