英语语法教学的象似观

象似性作为认知语言学理论框架中的重要观点之一，是依据“现实——认知——语言”这一基本出发点而得出的结论，其在一定程度上揭示了语言的规律，为外语的语法教学提供了一个新的视角和理论基础，对英语语法教学有一定的现实指导意义。     

论情感在认识中的作用

认识过程是一个充满主客体矛盾的复杂过程，它永远无法摆脱主体主观因素的影响。其中情感在认识中发挥着十分明显的作用，它非但不是否定客观知识的理由，而且是认识、获得客观知识的基础。     

Distributed leadership for personalized learning

Abstract

Personalized learning refers to a collection of practices designed to place student interests and needs at the heart of schooling. Schools that implement personalized learning need leaders that support educators and students in redesigning the core practices of teaching and learning in K-12 schools. To answer the question of how leaders support this redesign, we use distributed leadership theory to focus on the macrotasks and microtasks that leaders enact to create the conditions for personalized learning practices. Drawing on a five-year, qualitative study of 11 personalized learning programs in the Midwest, we identify three macrotasks supporting personalized learning: reorganizing learning environments to support student voice and choice, assembling idiosyncratic technology ecosystems to distribute teaching and learning tasks, and redesigning instructional time to prioritize student’s interests, agency, and learning relationships. After we describe a number of microtasks associated with each macrotask, we discuss how a consideration of these kinds of leadership tasks can open the contemporary discussion of personalized learning from a narrow focus on learning technologies to an expansive vision of student-centered school reform.     

PEMFC分散发电系统的压力控制研究

NomenclatureA-area ( m2)Dw-membrane water diffusivity ( m2/s)F-=96 487I-current (A)M-molecule mass (kg/mol)T-temperature (K)W-mass flowrate (kg/s)cw-water concentration in membrane ( mol/m3)m-mass (kg)n-cell numbernd-electro-osmotic drag coefficientp-pres…     

B/S模式程序中的分布式计算应用一例

B／S模式的应用程序主要是集中式计算和处理，本简要的以实例无纸化考试系统设计，说明了在B／S模式中采用分布式计算处理的一种思路。     

英语表量结构中的动词性借用单位名词

英语对于在空间上形体和边界范围不固定的物质、事物群体及无空间存在的抽象事物计量描述时,常需借助于表量结构“Num N1 of N2”。N1是表份的单位名词(unit noun),和作为计量单位和数词、介词“of”一起构成数量语块对N2进行量的描述。同汉语的量词一样,英语表量结构中的N1有不少是从动词借用来的。本文主要讨论英语表量结构中动词性借用单位名词的不同类型、作用和修辞特点等。     

教学目标设计理论及模式功能

介绍了教学目标系统设计理论的流派,通过比较具有代表性的两种分类理论,阐述了目标系统设计的结构及模式功能。     

Boundary control of a linear distributed parameter bioprocess

This paper is concerned with boundary control of a linear distributed parameter bioprocess. Huang's result (Ann. Differential Equations 1(1) (1985) 43) on the spectrum determined growth assumption is applied to prove that the closed-loop system becomes exponentially stable under a certain condition with respect to the feedback gain. Moreover, it is shown that the decay rate of the open-loop system is given by letting the feedback gain tend to zero.     

新媒体时代典型人物报道致效之思

典型人物报道在讲述好故事、传播正能量中有其独特价值与意义,但在当下的新媒体时代,典型人物报道却时常遭受质疑。本文尝试为典型人物报道破解困局提供思路借鉴,提出典型人物报道须坚持宣传导向性与内容真实性的统一,遵循"其言直,其事核,不隐恶,不溢美"原则;议程构建平民化,让受众有代入感;价值认知与时代同步,凸显人文关怀。     

认知语言学中英汉隐喻的共性与差异

隐喻(Metaphor)是英语常用的一种修辞格,是语言中最重要的表达手段之一.运用隐喻,能形象而概括地说明问题,使语言生动、鲜明、富有表现力与感染力.通过对英汉两种语言中隐喻概念的分析比较,我们发现隐喻作为人类基本的认知活动具有其共性和差异.在此,我们将对存在的这些共性和差异进行一些探讨.