A Review of the Effectiveness of Web-based Course with College English Learners' Autonomous Learning

The paper is a literature review, aiming to examine the effectiveness of web-based college English learning which mainly focuses on learners' autonomous learning. Previous studies indicate that the web-based learning can improve learners' autonomous learning, as well as some problems found in their findings. Therefore, this paper first gives a summary and critique of research studies on the web-based autonomous learning and some factors influencing learners' autonomous learning ability;then, areas that deserve further study are also indicated.

Experiment of Adopting the Learner Blog in CALL-based Practical English Writing Course

The learner blog is adopted in the instruction of CALL-based Practical English Writing course for A-level non-Eng lish major sophomores in our school in the spring this year.After examining how the program is implemented in detail,sugges tions are provided for future instructors in this related program.To ensure the program a good start,it is advisable for instructors to set aside a certain time to help each student to create a blog account in the beginning.Besides,it is requisite to provide stu dents with blogs titles with elaborate design and with the evaluation and further comment of the blog in the course of face-toface communication.Using of blogs in CALL-based Practical English Course is helpful in improving students'writing quality,in gearing up self-introspection for participants,in creating cooperative learning community,in fostering autonomous learning and cooperative learning,in building up communicative channels between students and instructors and among students themselves.

An Empirical Study on Classroom Learning Anxiety of Secondary Vocational English Learners in Content-based Instruction

This research aims to study the relationship between content-based instruction and secondary vocational English learners.Two classes in one secondary vocational school were chosen as participants.The result shows that CBI teaching has a negative correlation with English learning anxiety and has an impact on alleviating students' anxiety.

A Corpus-based Study of Colloquial Features in English Learners' Written Registers:Taking Quasi-modals as an Example

This article is a corpus-based study of colloquial features, especially quasi-modals in English learners’writings. Via using Longman Learners Corpus, British English 2006 and American English 2006, quasi-modals used in English language learners’ writings are compared with the real uses of quasi-modals in native speakers’ writings. The results show that English languagelearners may have a problem with misusing colloquial-feature phrases, quasi-modals, in written registers.

基于AESL-GA的BN球磨机滚动轴承故障诊断方法

针对基于知识的贝叶斯网络(BN)构建方法存在不完全和不精确的缺点,提出一种基于知识引导和数据挖掘的BN结构构建方法。针对单一信号故障诊断结果不精确的问题和故障信息中存在的不确定性问题,将电流信号与振动信号融合建立BN的特征节点,分别提取2种信号的故障特征参数,利用区分度指标法进行特征筛选,将其作为BN结构特征层的节点。将专家知识构建的初始BN结构结合自适应精英结构遗传算法(AESL-GA)进行结构优化,通过自适应限制进化过程中的搜索空间,减少自由参数的数量,提高其全局搜索能力,得到最优BN结构。通过MQY5585溢流型球磨机滚动轴承实测数据和Paderborn University轴承数据集对所提方法进行验证,结果证明了所提方法的有效性。

A Corpus-based Study on Writer/reader Visibility in English Writing by Chinese EFL Learners

Writer/reader(W/R) visibility is regarded as an important indicator of personal involvement. Previous studies concluded that EFL learners tend to contains more personal involvement than native speakers in their writing, making it resemble spoken language as a result. Therefore, this paper examines the degree of W/R visibility in English writing by university-level Chinese learners to verify the applicability of the previous findings on Chinese learners. Based on the data collected in the corpora CLEC,WECCL and LOCNESS, the results show that Chinese EFL learners have the tendency to employ more features of W/R visibility than native speakers, for example the high use of first or second person reference and words that represent mental process. Besides, the paper also reveals little distinction on W/R visibility between English and non-English majors, suggesting the inefficiency of the writing ability of today's English majors.

概念型教学法对中国大学英语学习者短语动词的习得效应

本文聚焦于英语短语动词的分类及多义短语动词的语义分析,并以此为基础考察概念型教学法(CBLI)对中国大学英语学习者短语动词的习得效应。研究发现主要有三:(1)CBLI有助于学习者对短语动词概念的习得,而且该效果具有可持续性;(2)学习者的表现随短语动词隐喻程度的不同而有所不同——与方位和体式短语动词相比,CBLI对学习者习得隐喻式短语动词的效果更好,而且这种效果也具有可持续性;(3)CBLI有助于培养学习者的隐喻性概念意识和概念系统思维。较高得分者构建完整行动导向基础图式(SCOBA)的表现更好,能更加准确地提炼出短语动词的核心意义,其SCOBA更具图式化特征,抽象程度更高,而较低得分者的SCOBA却较为具体,更依赖于具体的语境,不具备概括性和可迁移性。

浅谈基于核心素养培养的小学语文生本课堂的构建

近年来,随着教育体系改革的不断深入,更加重视对学生核心素养的培养。其中,小学语文教育是培养学生基础能力的重要阶段,也是塑造学生人格特质的关键时期。基于此,本文从核心素养培养角度,深入探讨了如何构建小学语文生本课堂,保障在实际教学中能够根据不同学生的差异性,实现针对性教学,以此全面提升学生的综合能力,并为小学语文教师提供帮助。

Task-based Language Teaching——New Approach,New Gain

Task-based Language Teaching(hereafter TBLT) is the latest development of Communicative Language Teaching(henceforth CLT) that many unreal communicative activities have appeared in communicative classroom teaching.TBLT leads students to learn English by fulfilling a realtask in order to improve their ability of using English.It emphasizes on learner-centered.This dissertation introduces the origin,principles,steps of TBLT,with the aim of providing a clear picture of tasks and TBLT.TBLT:challenge and change in English teaching,new approach,new gain.

An Investigation into the Web-Based Learning in Jiangsu Open University(JSOU)——A case Study of College English

College English is a compulsory course for all registered online learners in Jiangsu Open University and students have been practicing web-based learning instead of face-to-face classes ever since 2014.Questionnaires and interviews are adopted to look into the 4-year-long practice of web-based learning in College English in JSOU.By analyzing the data obtained from both teachers and students,the findings show:(1)web-based learning caters to online learners in that the online learning materials,particularly micro-lessons,are well-designed and easily accessible.(2)web-based learning helps teachers monitor the learning process of online learners and therefore assures the quality of online learning.(3)web-based learning enhances effective learning since students and teachers can communicate conveniently and instantly via online chat rooms and instant messaging software.

Language Learner Strategies in Second Language Teaching

Language learner strategies, which are closely associated with second language teaching, have experienced great devel?opment in the fields of theory-building and instructional practices since the 1970s. By reviewing previous research, pedagogical enlightenments can be drawn to the current English language teaching.

Teaching of Subject-Based English to Non-English Majors

Subject-Based English is an important part in college English for non-English major students and an effective way to help them to complete the transition from language learning to its practical application.In this paper,the author discusses the significance of setting up subject-based English,the teaching materials for subject-based English and focus on teaching model and teaching method.Based on this new teaching concept,in teaching process,Task-driven approach is recommended.In fact Task-driven teaching method is based on communicative approach and the theory of structuralism.They can accomplish certain learning tasks via necessary cooperation.By a large number of practice activities planed,they can improve their application skills in English listening,speaking,reading,writing and translation further.

面向复杂异质数据的集成学习研究综述

复杂系统的实际过程数据具有多工况、高维度、多源多模态等异质特点,“大样本”中蕴含着“小样本”,其具有整体特征与局部特征。集成学习通过联合多个基学习器对复杂异质数据的内部规则进行提取,具有显著的数据挖掘优势,并已获得了广泛关注。针对集成学习的重要应用价值,对其研究进展与发展前景进行了综述和展望。首先,基于设计思想对集成学习的结构和性质进行了归纳总结;接着,通过特征工程、基学习器选取和集成策略3个方面对集成学习的研究现状展开了论述;然后,介绍了集成学习在复杂工业问题、图像识别、指标预测、信息安全和临床诊断等不同领域中的实际应用情况;最后,指出了当前研究面临的挑战并展望了未来的研究方向。

一种大分割立体定向放射治疗计划质量评估方法

目的提出一种针对大分割立体定向放射治疗(HSRT)计划的质量评估方法,通过对评估参数进行建模拟合,为调整治疗计划指导方向。方法选取2021年1—12月医院收治的20例病灶直径>2 cm的脑转移瘤患者,基于Monaco5.11治疗计划系统,从肿瘤控制率和正常组织并发率出发,以适形度指数[CI,包括肿瘤放射治疗组(RTOG)CI和Paddick CI]、梯度指数(GI)、质量指数(QI)、均匀性指数(HI)、V_(24.4)、V_(12)、V_(18)、V_(23)及计划靶区大小(PTVbin)等为质量评估参数,利用集成学习中的Bagging算法拟合参数形成一系列基学习器,整合对应权重建立质量评估集群分类学习模型。结果所选评估参数对HSRT计划质量的影响程度排序依次为V_(12)、V_(24.4)、PTV_(bin)、GI、CI_(Paddick)、V_(23)、QI、V_(18)、CI_(RTOG)、HI。其中,V_(12)对计划质量的影响最大,占16.2%;HI影响最小,占3.8%。结论该方法以多因子模型为核心,利用集成学习将计划质量评估过程模拟为多个基学习器,组合预测结果确认各个参数对计划质量的影响程度,明确了计划设计优化的目标,为制定高质量治疗计划提供了统计学证据。

设计思维如何指导教学创新?——项目化学习设计的视角

设计思维作为一套包括理念、过程和工具的系统性方法,可为教育教学变革和未来人才培养提供新思路。本研究针对教学创新实践中设计思维融入系统性和深入度不够问题,提出设计思维深度融入教学创新需要转变理念、升级目标、重组内容、再造流程、变革评价等。本研究建构了设计思维指导的项目化学习设计模型和和学习活动设计与实施框架,系统阐述了设计思维如何从宏观和微观层面帮助教师实现课程—教学—学习的一体化设计。在宏观层面,教师要围绕课程学习目标和设计思维的特性,按照定义问题—汇聚灵感、构思方案—设计原型、迭代修订—输出制品、使用改进—演化发展四个阶段,设计围绕复杂问题的创新项目、系统化学习活动链、多模态学习资源、融合性学习环境和全过程学习评价。在微观层面,教师要创设目标导向的复杂情境,设计融合内容的活动、开发操作性活动指南、实施深度交互活动、优化支持性多维评价与方案,将特定课程的学习活动设计与实施落到实处,期间要重点关注各阶段的操作重点、关键性设计思维工具、方法与核心特征的融入。本研究旨在为教师开展设计思维指导的教学创新提供理念、过程和方法的深度融入支架,落实以学习者为中心的教学。

课程思政融入本科院校专业课的思考与实践——以“现代仪器分析”课程为例

课程思政是应用型本科人才培养目标的需要,将课程思政有机融入专业课程教学改革,与思想政治理论课同向同行,是实现立德树人教育理念的必然要求。从教学目标、教学方法、教学内容、教学活动、课程考核方式等方面,探索如何结合制药工程专业“现代仪器分析”课程特色,深入挖掘课程蕴含的思想政治教育资源,如将社会热点和哲学辩证思想等融入教学内容。通过在本课程教学过程中多方面地导入思想政治内容,显著提升了学生的专业素养和道德修养。

一种优化云无线接入网络资源分配算法

在云接入网络(cloud radio access network,C-RAN)中,设备至设备(device-to-device,D2D)通信共享蜂窝用户的资源,提高了频谱利用率。但是资源共享也引入干扰问题,降低了网络的和速率。提出基于教学优化法的资源分配算法(teacher learner based optimization-resource allocation,TLRA)。TLRA算法在分配资源时,考虑了干扰问题,并以蜂窝用户端的干扰不高于预定阈值为约束条件,建立目标问题。利用教学优化法求解目标问题,获取最优的资源分配策略。性能分析表明,提出的TLRA算法提高了系统和速率,Jain公平指数接近0.8。

分级教学语境中的混合式教学环境感知研究

本研究从大学英语分级教学语境出发,以该语境中的高水平组学生为研究对象,通过问卷调查与访谈来探究该群体学生对于混合式教学环境的感知数据并且分析其理据性。研究表明,高水平组学生对于混合式教学的线上教学环境与线下教学环境均持认可的态度。此外,通过分析该组学生对于混合式教学模式教学环境的理据性,本研究也提出了构建大学英语混合式教学模式教学环境的几条举措。