现代汉语完句的语用解析   总被引：2，自引：0，他引：2  

郭艳成 《南京师范大学文学院学报》2003,(3):148-153

现代汉语完句成分是依附于由实词构成的句干、使静态句干实现为动态句子所具有的句级功能性成分.在语用上,汉语句子层级性构造的外围是语境,它是必不可少的"完句背景";语气的完句作用也不可或缺,各类句调的完句作用强弱可以排列为祈使＞感叹＞疑问＞陈述,和言语行为的类型密切相关.  相似文献   

Tandem Biocatalysis by CotA-TJ102@UIO-66-NH2 and Novozym 435 for Highly Selective Transformation of HMF into FDCA     

Chang  Xin  Zhang  Chengyu  Gao  Lan  Liu  Xiao  You  Shengping  Qi  Wei  Wang  Kang  Guo  Xin  Su  Rongxin  Lu  Han  He  Zhimin 《天津大学学报(英文版)》2019,25(5):488-496

2,5-Furandicarboxylic acid(FDCA) is a potential biorenewable chemical for applications including plastics, polyamides, drugs, etc. The selective biosynthesis of FDCA from 5-hydroxymethylfurfural(HMF) by a specific enzyme poses a great challenge. In this study, we reported an efficient strategy to produce FDCA from HMF by the tandem biocatalysis of laccase(Cot A-TJ102@UIO-66-NH_2) and Novozym 435. For the first step, a nanoparticle metal–organic framework was synthesized as a carrier to immobilize Cot A-TJ102@UIO-66-NH_2, which was assigned for the production of 5-formyl-2-furancarboxylic acid(FFCA) and featured an enzyme loading of 255.54 mg/g, specific activity of 135.90 U/mg, and solid loading ratio of 99.65%. Under optimal conditions, an ideal FFCA yield of 98.5% was achieved, and the Cot A-TJ102@UIO-66-NH_2 presented a high recycling capacity after 10 cycles. For the second step, Novozym 435 was applied for the further conversion of FFCA into FDCA, presenting a high FDCA yield of 95.5% under the optimized conditions. Novozym 435 also exhibited a high recyclability after eight cycles. As a result, the tandem biocatalysis strategy provided a 94.2% FDCA yield from HMF, indicating its excellence as a method for FDCA production.  相似文献   

成都产业结构调整态势分析   总被引：2，自引：0，他引：2  

杨国良 《四川师范大学学报(社会科学版)》2001,28(6):18-24

50年来，成都经济有了很大发展，产业结构做了重大调整，总的趋势是 ，但其间出现过波动与不协调。在下一步调整中，应提高二、三产业，特别是第三产业比重，适当提高第一产业产品的附加价值，实现第二产业产品的升级换代，加快新兴产业的发展步伐。  相似文献   

我国高等继续教育持续发展方略   总被引：5，自引：0，他引：5  

李平  郭慧珍 《中国高教研究》2007,(4):38-41

近年来,我国高等继续教育在高等教育大众化发展历程中发挥着重要作用,同时自身也取得了长足的发展,并形成目前的基本格局。随着高等教育向内涵发展方向的调整,高等继续教育要想保持发展态势,必须在坚持特色、充实内涵、提高实力上下功夫。  相似文献   

技术创新对跨国公司经营活动的影响     

郭德双  郭丽琼 《黄石理工学院学报(人文社科版)》2007,24(1):18-20

全球经济一体化的迅速发展,技术创新能力的不断提高,使各跨国公司技术战略和经营活动亦随之调整.可以说,技术创新正在影响一个跨国企业的经营理念,并在经营活动中成为一种新的策略.  相似文献   

Development of a plastic injection molding training system using Petri nets and virtual reality     

马斌  郭志英  周华民 《浙江大学学报(A卷英文版)》2006,7(3):302-308

INTRODUCTIONAt present, plastic as a substitute for metals in products is the most important mainstay in industrial raw materials. Furthermore, plastic injection molding is one of the most common and versatile methods for mass production of complex plastic parts with excel-lent dimensional tolerance. Since the technology of injection molding has been widely applied in manu-facturing, training on injection molding is of great importance. The traditional approach is to consult some technica…  相似文献   

网络学习自我评价探究   总被引：1，自引：0，他引：1  

郭学品  陈洪清  李翠白  黄成 《中国远程教育(综合版)》2011,(5)

在网络学习中,自我评价对学习者具有重要的意义。但受学习者自我评价意识淡薄以及自我评价能力不足的制约,自我评价很难落实在学习者的整个自主学习过程中。为了促进网络学习中学习者的自我评价,在自我评价中应注重评价的过程性、调控性和实时性,并从网络学习能力等多方面构建自我评价的考量要素。  相似文献   

年幼儿童的视频学习:研究与展望     

郭力平  朱文佳  郝俊  张苏颖 《幼儿教育》2011,(12)

视频资源已成为当代儿童生活中不可或缺的组成部分。研究表明,尽管年幼儿童通过视频进行了学习,但在年幼儿童,尤其是3岁前儿童的认知发展过程中,视频学习的作用可能并不明显。因此,理解年幼儿童视频学习的视角应当从对认知发展的关注转换到对社会性发展的关注上来,在年幼儿童社会化的过程中理解视频学习,揭示视频学习的社会性本质。视频资源不应是单纯的知识载体,而应当成为儿童的社会伙伴。考察视频环境中年幼儿童的学习,应在儿童、他人和视频构成的互动系统中,关注人际互动与人机互动的动态协调。强调视频学习的社会性本质,可以为年幼儿童学习理论的建设带来新思路,也可以为视频资源的教育应用及相关政策的制定提供依据,为视频节目的设计与制作带来新的启示。  相似文献   

教师的文化知识:创造教学的当下意义及其改进的无限可能——密西根大学Kathryn M.Anderson-Levitt教授访谈     

王艳玲 《全球教育展望》2011,(10):3-11

凯瑟琳M.安德森-莱维特教授从教育人类学的视角研究教师知识及其教学。她将教师的文化知识定义为教师所具有的知识、信念、态度,以及教师用以完成教学的实践中的知识;它包括教师从教育学院和实际工作中获得的专业知识,也包含了对课堂、儿童和教学的常识性理解和想当然的知识。她通过人类学的田野研究,得出教师文化知识的五个类别:安排学年课程的知识、组织教学活动的知识、评价学生学习的知识,解释并补救学业失败的知识,以及实践中的知识。她发现,存在着一种对学校教育的跨国理解,或者说,存在着全球化的共同的教育话语,但是在本土层面,学校教学和改革却存在深刻的文化差异。  相似文献   

THE DEVELOPMENT OF A COMPETENCE SCALE FOR LEARNING SCIENCE: INQUIRY AND COMMUNICATION     

Huey-Por Chang  Chin-Chang Chen  Gwo-Jen Guo  Yeong-Jin Cheng  Chen-Yung Lin  Tsung-Hau Jen 《International Journal of Science and Mathematics Education》2011,9(5):1213-1233

The objective of this study was to develop an instrument to measure school students’ competence in learning science as part of a large research project in Taiwan. The instrument consisted of 29 self-report, Likert-type items divided into 2 scales: Competence in Scientific Inquiry and Competence in Communication. The Competence in Scientific Inquiry scale contained 4 subscales: presenting questions and hypothesis, planning, experimenting and data gathering, and data analyzing, interpreting, and concluding. The Competence in Communication scale contained 4 subscales: expressing, evaluating, responding, and negotiating. Students were recruited randomly from primary, junior, and senior high schools in different regions of Taiwan to validate the instrument and establish its reliability and validity. The results of the analyses indicate that the instrument, scales, and subscales have reasonable internal consistency; that the theoretical structure was supported by empirical data; and that the subscales are homogeneous. These results indicate that it is an appropriate tool for measuring students’ competence in learning science. Implications and suggestions for further studies are included.  相似文献