外语教学法主要流派的变迁及其发展趋向

现代外语教学流派众多，各具特色。本回顾了几种外语教学主要流派的变迁，分析其产生的理论基础、历史背景及特征．在此基础上指出外语教师应立足于自己的实践，辩证地整合、优化各种教学法。本还就当前外语教学法的研究趋向及意义提出了一些看法。     

中国高职教育的新实践、新理论、新发展

近十年,大批高职院校在中华大地上涌现,由于高职教育理论、教学模式、教学方法准备不充足,各院校都在摸索中前进。经过近十年的实践与探索,产出了一大批高职教育研究成果,这些成果在高职院校的教育教学中,还没有得到广泛应用,很有必要以某种形式在高职院校中推行,让新的理论与方法在应用与实践中升华。高职教育作为整体,目前存在着许多难以克服的困难和问题。研究如何应用最新研究成果,形成中国特色的高职教育体系、理论框架和实践模式,是全体高职人面临的新课题。如果在这些课题研究中有所进展、有所突破,中国高职教育一定有望成为世界典范。     

<Emphasis Type="Italic">Agrobacterium</Emphasis>-mediated transformation of herbicide resistance in creeping bentgrass and colonial bentgrass

Embryogenic calli were induced from the seeds of creeping bentgrass (Agrostis palustris Huds.) cv. Regent and colonial bentgrass (Agrostis Tenuis Sibth. Fl. Oxen.) cv. Tiger. The embryogenic calli were precultured on fresh medium for 4–7 days and then co-cultivated withAgrobacterium tumefaciens, LBA4404. which contains plasmid vector-pSBGM harboring bar coding region, synthetic green fluorescent protein (sGFP) coding region and matrix attachment region (MAR). After 3 days of co-cultivation, the calli were washed thoroughly and transferred to MS medium containing 2 mg/L of 2, 4-D, 12–15 mg/L phosphinothricin (PPT) and 250 mg/L of cefotaxime. After 2–3 months of selection, the actively growing calli of ‘Regent’ and ‘Tiger’ were transferred to MS medium with 12–15 mg/L PPT and 250 mg/L cefotazime for regeneration. The putative transformants were maintained on MS medium with 3 mg/L PPT for long period but control died within 1 month. After establishing in greenhouse, the transformants also showed strong resistance to 0.4% of herbicide Basta but control plants died within 2 weeks. Under confocal microscope, both young leaves and roots showed significant GFP expression. PCR analysis revealed the presence of a DNA fragment of GFP gene at the expected size (380 bp) in the transformants and its absence in a randomly selected control plant.     

计算机支持的思维导图在大学英语阅读教学中的应用

分析英语阅读的本质特点,提出思维导图可以作为阅读教学中的教学工具和学生的认知工具.在介绍思维导图的特点的优势的基础上,结合教学实践,探讨了思维导图的教学策略和对学生阅读理解的认知策略和元认知策略的发展.     

递推方程的两种特殊解法及其在程序设计中的应用

首先分析了常系数线性递推方程的一般解法。接着根据幂级数与生成函数的关系,将生成函数用于递推方程的求解。最后通过对经典问题——Hanoi塔的例子,利用MATLAB仿真,对递归和非递归程序的执行效率进行了比较,验证了求解递推方程的必要性。     

激光靶测速相对误差影响因素研究

激光靶测速是速度测量的一种重要的实验方法,其测试效率高、精度高、抗干扰能力强、测速范围大、受环境因素影响小,很有工程应用前景。针对激光靶速度的实际工程应用背景,深入、系统地研究了在匀加速阶段和匀速阶段测速时影响测速相对误差的因素,得出了在这两个典型阶段测速时,激光靶的安装位置及其精度与测速相对误差的重要关系。同时,分析得到了在给定测速相对误差前提下,激光靶的最佳安装间距。上述结果对激光靶测速的相关工程应用和相关实验的设计与开发具有重要的指导意义。     

明清八股文与当代写作教学

八股文是明清科举考试的专用文体。自问世以来,人们对八股文的评价褒贬不一。试从以下五方面来探讨八股文在当代写作教学中的价值:八股文的特定格式符合一般文章的"起承转合"章法结构,有利于学生习得一定的章法结构;对"代言"的严格限定,启示写作要读写结合,又要有一定的想象力;对"尊题"的严格要求,启示写作行文必须切合题旨;作为一种议论文体,是训练理性思维的重要凭借;分步、渐进的训练过程,符合由简而繁、由易到难的学习心理。     

积极心理学及其在心理健康服务中的应用

积极心理学强调正面的心理能量,逐渐成为心理学研究领域的一股强大的新生力量。它对当前的心理健康服务有重要的启示。即在心理健康教育和心理咨询中,要培养积极的情绪和氛围,发展积极的人格特征和良好的社会支持系统,以促进人的身心健康发展。     

数控实训教学的探讨

通过总结数控实训教学中的经验,在教学内容和教学方法上进行改进,即教学内容上应注重基本原理的理解、学生能力的培养,而对不同的教学内容应使用不同的教学方法,在实际教学中取得较好的成效。     

Assessing South China (Guangzhou) High School Students’ Views on Nature of Science: A Validation Study

Research on students’ views on nature of science (VNOS) in Asian countries such as China is notably lacking. This study aimed to develop and validate an instrument to measure South China high school students’ VNOS. Based on the previously acquired qualitative data, the instrument included seven VNOS dimensions which reflect the crucial aspects of NOS indicated by the literature and/or the dominating ideology in China (i.e., Marxism). A sample (N = 604) was randomly divided into two groups used for exploratory analyses and confirmatory analyses. The results indicated that the instrument expressed satisfactory reliability and validity and the seven NOS dimensions could be explained by a higher-order dimension. That is, the data of this study supported the multi-dimensional framework that treats VNOS as comprising several more-or-less correlated dimensions. Two distinct dimensions, namely “Accumulative-Empirical Source” and “Pragmatic Justification” which have not been explicitly specified in the past literature, were found. In addition, the Chinese high school students generally held a constructivist/relativist-oriented view of all seven dimensions. Differences in gender and grade level were hardly observed in any dimension of the instrument. The findings are further discussed through a socio-cultural lens to enrich the current understanding of VNOS.