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焦虑和自我效能感被认为是影响语言学习较大的两种情感因素.二语习得焦虑与二语习得成绩呈负相关关系,而二语自我效能感与二语习得成绩呈正相关关系.在教学上,从二语自我效能感与二语习得焦虑关系入手可以提高二语习得效果. 相似文献
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焦虑和自我效能感被认为是影响语言学习较大的两种情感因素.二语习得焦虑与二语自我效能感呈负相关关系.在二者因果关系问题上,研究者有不同的看法.事实上,自我效能感包含了认知成分和情感成分,按照焦虑、认知、行为之间的递归性或循环性关系,二语自我效能感与二语习得焦虑之间的关系可能是交互的.在教学上,从二语自我效能感与二语习得焦虑关系入手可以提高二语习得效果. 相似文献
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考虑了原Heisenberg-Virasoro代数的二上循环和Leibniz二上循环,证明了此代数上的Lie二上同调群与Leibniz二上同调群相一致． 相似文献
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以自制的N,N'-二芳基己二酰二肼类化合物为原料,在室温条件下用NaBrO3/H2SO4氧化体系对其进行氧化脱氢得8种己二酰基双偶氮化合物,产品的结构经元素分析、IR、1HNMR确证,原料N,N'-二芳基己二酰二肼的IR谱中,在3 200～3 400 cm-1出现的2个N-H吸收峰在氧化产物中消失,但在1 455 cm-1附近有-N=N-吸收峰;1HNMR谱中在δ 7.3～10.5之间的2个N-H化学位移在氧化产物中也消失:产物的元素分析结果与理论值基本相符,产率在81%～94%之间. 相似文献
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近几年,我国学者将手势应用于二语课堂的教学之中,发现其对学生的二语习得具有积极作用,尤其是在二语词汇习得方面。越来越多的学者也在关注二语语法学习、二语听力学习。文章基于国内外手势研究理论,从二语习得角度,分二语教学领域理论假设、二语词汇和语法习得产出、二语词汇和语法教学输入三个方向开展关于手势在二语课堂教学的研究综述,再从研究设计、研究方向、基础教育阶段的应用三方面对今后的研究进行展望。 相似文献
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《校园英语(教研版)》2015,(2):214-215
石化现象普遍存在于二语学习过程中。无论是正确的还是错误的语言形式都会石化,而且将会对二语习得产生深远的影响。目前,国内外研究者都开始重视此问题的存在。本文笔者通过对石化现象的定义、成因及解决途径的研究来对石化现象有更为深刻的理解,进而期待推动二语习得和二语教学的进程。 相似文献
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儿童在认知世界的同时习得了母语,所习得的母语具有思维和交际二元性,而二语习得实质上是习得了对原有知识的另一套符号表征系统,所习得的二语仅有交际性功能;母语习得主要是认知图式的创造过程,二语习得则包括了图式增加、调试和创造三种过程。基于对二语本质及其习得过程的探讨,试图对二语教学提出几点建议。 相似文献
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罗艳萍 《读与写:教育教学刊》2008,5(6)
The communication of people partially is the communication of cultures. Culture has a direct effect on international commercial activities in all aspects. Different conceptions about time, space, equality, law and the like, lead people to deal with things in different ways. So to know cultures of the counterpart is to facil-itate our enterprises so as to have a smooth and successful communication in commercial activity. 相似文献
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邱崇丙 《唐山师范学院学报》2014,(1):21-23
汉字的六书,《说文》对“转注”一类,语焉不详。后世学者提及转注,也仅限于许慎所举出的例字。《汉字例说》一文,作者从转注的角度综合考虑,对部分现代常用字作了分析,跟传统的解释有所不同。希望能抛砖引玉,互相切磋,以推进学术研究。 相似文献
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Richard Denner 《海外英语》2007,(4):14-15
Rosco and I wait for the fishermen to return.I sit at a wooden bench near the store at Mt.Baker Resort and watch the clouds change shape. Rosco has my belt around his neck and an eight foot tow chain hooked to a tree. Dogs must be on a leash. Ducks and rabbits are loose. 相似文献
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Given a graph G,a subgraph C is called a clique of G if C is a complete subgraph of G maximal under inclusion and |C|≥2. A clique-transversal set S of G is a set of vertices of G such that S meets all cliques of G. The clique-transversal number, denoted as TC (G), is the minimum cardinality of a clique-transversal set in G. The clique-graph of G, denoted as K (G), is the graph obtained by taking the cliques of G as vertices, and two vertices are adjacent if and only if the corresponding cliques in G have nonempty intersection. Let F be a class of graphs G such that F={G|K(G) is a tree}. In this paper the graphs in F having independent clique-transversal sets are shown and thus TC (G)/|G|≤1/2 for all G ∈ F. 相似文献
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《海外英语》2007,(5):10-11
Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help? 相似文献
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Rachel Zupek 《海外英语》2007,(11):40-41
我们绝大部分人都同意一件事情——我们喜欢金钱。但是你对金钱的喜欢之情足够到让你创立一份事业么?.财富通常被人忽视,主要在于人们不能真正了 相似文献
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陈美曦 《山东教育学院学报》2008,23(2):103-107
Different nations have different social cultures, and the social culture of every nation is developing with the development of the nation, language is greatly influenced by social culture, which enables language to possess national and historical characteristics. Word is the smallest, independent, meaningful linguistic unit of language. It can well reflect the national and historical characteristics. From synchronic aspect, the social and cultural influence on word meaning is mainly embodied in conceptual and associative meanings of word. The incorrespondence of word meaning is a phenomenon that exists in both conceptual and associative meanings of word among different languages. From diachronic aspect, the development of social culture causes some changes of word meaning to some extent. Therefore, social culture plays a key role in vocabulary learning and mastery of a language. 相似文献
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YANGShiguo 《重庆大学学报(英文版)》2004,3(1):86-88
The problem on the geometrc inequalities involving an n-dimensional simplex and its inscribed simplex is studied. Aninequality is established, which reveals that the difference between the squared circumradius of the n-dimensional simplex andthe squared distance between its circumcenter and barycenter times the squared circumradius of its inscribed simplex is not lessthan the 2(n-1)th power of n times its squared inradius, and is equal to when the simplex is regular and its inscribed siplex is atangent point one. Deduction from this inequality reaches a generalization of n-dimensional Euler inequality indicating that thecircumradius of the simplex is not less than the n-fold inradius. Another inequality is derived to present the relationship betweenthe circumradius of the n-dimensional simplex and the circumradius and inradius of its pedal simplex. 相似文献