本研究以翻转课堂理论和自主学习理论为基础,依据翻转课堂教学模式,设计了相应的英语写作教学流程并应用于实验组的写作教学中.运用SPSS version 17对实验组和对照组学生的英语写作自主学习能力后测数据进行统计分析,结果表明,英语写作教学采用翻转课堂教学模式能有效地提升学生的自我管理、自我探究、自我评估、自我反思、自我调节以及自我监控等自主学习能力.
温泉旅游外宣的英译资料是宣传旅游资源和吸引国外游客的主要途径.为了让国外受众更好地了解温泉旅游,提升温泉旅游城市外宣资料的翻译质量,依据功能主义翻译理论讨论最典型的问题和翻译策略,包括中国特色句子翻译、广告翻译、中医术语翻译和题名翻译,以期为温泉旅游的翻译工作提供分析方法和参考规范.
In order to overcome the problem of uncertainty in grey neural network model(GNNM),this paper proposed a prediction model of grey neural network optimized by modified fruit fly optimization algorithm.Fitness function was modified by the addition of jump coefficients,at the same time,the concept of three-dimensional space search was introduced to expand the scope of the fruit fly to improve the optimization algorithm,which could avoid the local extreme value and improve the searching ability of the algorithm.The improved algorithm was used to optimize the parameters of grey neural network,and the optimal value was obtained by training the grey neural network model.The prediction performance of the model was verified by the simulation of the actual engineering deformation data,and the results were compared with the grey neural network of the fruit fly optimization,the grey neural network and the grey neural network prediction model of the particle swarm optimization algorithm.The results showed that the prediction accuracy and fitting degree of improved fruit fly optimization algorithm of grey neural network were higher.
Some rugged surface features (such as housing,etc.) are distorted in ortho-rectification process of SAR image based on Digital Surface Model (DSM) produced by optical remote sensing images without being edited.A new method of automatic compensated DSM is proposed,which meets the need to eliminate the anomalous points of DSM produced by optical remote sensing images based on the global SRTM of 30 meters grid.And then,median filtering method is adopted to improve the smoothing in order to eliminate the partial anomalous points.Compensated DSM is used for ortho-rectification of SAR image of YG-7.The experimental results indicate that the proposed method can be utilized to eliminate the phenomenon of distortion in the space-borne SAR ortho-image.The feasibility of the method which is used to reduce the workload of DSM manual edit is demonstrated.This study provides theoretical basis of engineering to produce the ortho-rectification product of space-borne SAR.
Aiming at the randomness,non-stationary of deformation monitoring data and deficiency of single forecasting model,the model of a grey least square support vector machine based on wavelet denoising was presented in this paper.The wavelet denoising method was adapted to deal with the original data of deformation in order to weaken the effect of random disturbance factors.Then,the grey least square support vector machine was established and the particle swarm optimization algorithm was used to find the optimal parameters.An example based on the measured data of a dam deformation was validated with this model.Grey model,least square support vector machine and grey least square support vector machine model were used to compare with the proposed model.The results proved that the presented model was more stable and the forecasting precision of the presented model was higher.
针对当前关于行业英语概念理论层面分析研究的不足,依据语言共核理论,利用颜色渐变手法对比基础英语、行业英语和专业英语共核性差异;通过进一步比对基础英语、行业英语和专业英语使用语域的不同,探讨和提出了行业英语的理论定位.研究成果从理论上为行业英语教材的编写和行业英语教学指明了正确方向.
针对自回归(AR(p))预测模型定阶问题中回溯阶的不确定性和时变性,以及基于单一回溯阶预测方法的局限性和组合预测中的冗余信息等问题,该文提出了一种基于遗忘因子的变权组合定阶方法.利用冗余定理筛选基于多个回溯阶预测方法的有效信息,并利用遗忘因子实现了组合权重的时变性,克服了基于单一回溯阶预测模型稳健性欠缺、预测精度低等局限性,提高了预测能力.通过实例表明该算法具有高度的可靠性和可行性,为类似预测方法的定阶问题提供了研究思路.
针对当前教师专业发展中教师“知行脱节”的现状,通过分析和阐述实践共同体的理论和内涵,提出教师实践共同体的思路及其创建机制,以期有效地提升教师的实践反思和生态能力,有针对性地提高教师的专业发展.
针对高校学生英文写作在衔接和连贯方面存在的问题,以功能语法中主述位及主位推进模式为理论基础,采用数据分析的方法(SPSS 11.5)对非英语专业大学本科生的作文进行研究,发现主位类型和主位推进模式的选择对作文分数有很大影响,较多运用复项主位和句式主位使文章句子较之采用单项主位更具多样性,从而使句与句之间的衔接更加连贯。研究表明主述位及主位推进模式对高校英文写作教学具有重要的指导意义,并提出相应的建议和有效策略。
本文对独立学院实行大学英语分层教学研究基础上,依据大学英语课程教学要求、教学主体和教学目标制定相应质量动态监控标准,从学生动态考核、师资优化配置、考试标准、评估体系、教学管理和教务管理等方面探析大学英语分层教学中质量动态监控管理,为大学英语分层教学更有效地进行提供借鉴.
语调用来表达说话人意图和感情,不同的语调反映出多种思想、态度和情感.本文从论述英汉两大语系特点入手,分析两者在语调上的多种差异,总结出高校学生在英语语言输出方面不尽如意的原因并提出教学改善对策.
In view of the vague knowledge on functional orientation of WALL,based on constructivism theory,analyses were made.Findings show that WALL mode can improve students' multi-literacies in the language environment of multi-modality and that there exist defects in the training of students' communicative skills and their application ability.WALL functional orientation was profoundly examined.It was pointed out that teacher role dislocation and strategy absence are key factors that affect WALL performance.Effective solutions were then put forward.
随着计算机辅助外语教学技术的不断发展,语料库在外语教学中的研究和应用越来越广泛.本文通过探讨分析语料库的分类、作用及其在外语教学中的应用,指出有效利用语料库资源,不仅可以拓展教学空间,而且可以培养学生自主学习的意识.
针对外语学习中学生课堂互动和参与度不强的现状,通过阐述动机的内涵,分析认知因素和情感因素的影响,发现在影响外语学习动机的主要因素中,教师个性起着举足轻重的作用,并提出行之有效的方法。
To solve the ambiguous understanding of Grammar Teaching position,based on explicit grammatical knowledge,this paper discusses the grammar position in EFL,compares both its pros and cons between deductive and inductive approaches,and indicates that grammar teaching by either approach alone has disadvantages,should adopt a combination technique.
Aiming at difficulties for Chinese students to learn English,based on phonology theory,this article compares the Chinese tone with English intonation from various aspects,the finding is that the two language families have a great difference in intonation;intonation is put to use without high proficiency for students due to the influence of Chinese tone and its simplified pedagogy.
针对当前高校体育特招生英语词汇学习效果不佳的现状,基于任务型语言教学法理论,探索出英语词汇任务型教学模式,结合实际的研究与探讨,发现该模式可以有效解决体育特招生在词汇学习中的困难,优化词汇教学效果,为英语教师的因材施教提供了有益的指导。
Through the discussion and comparative research on theories, types and uses of English intonation, it is found that intonation is an indispensable part of oral communications. Proper use of intonation lies in knowing their functions and in the ability to correctly utter the patterns. Therefore, intonation theoretical knowledge is crucial and helpful to the English phonology teaching; and teachers need to properly incorporate intonation knowledge into teaching practice.
针对教学评估在国内外越来越受到重视的现状,依据外语测试和评估相关理论与研究背景,本文讨论了外语教学中测试评估的反拨作用及其具体表现;深入探讨了导致反拨作用的原因;并从教师、学生和试题内容等角度提出了改进的具体途径和有效策略.
To evaluate the validity of "dialogue completion" item in the language testing, this article explores three contradictions by analyzing aspects of its characters, content, validity and reliability. The finding is that "dialogue completion" patten has unpredicted answer and should be avoided in the testing as much as possible.