将分段函数表示为初等函数的方法

本文给出了一种化具有多个分段点，且在各区间段上的表达式为多项式函数的分段函数为初等函数的具体方法．     

突出地域特色的植物科学与技术专业教学改革

培养富有创新精神和开拓能力,理论坚实并具有现代植物生产技能,能够献身生态重建和区域农业发展的应用型高级技术人才。以此作为专业教学改革的基础目标,通过教师队伍素质和水平培养提高,着力相关课程改革,坚持理论教学面对区域农业发展实际,跟踪农业技术发展前沿,强化具有就业市场竞争能力的专业技能培养,通过办学条件的改善,使富有地域特色的专业教学改革取得初步而又明显的成效。     

试论教学语言的规范化

长期以来,人们对教学语言规范化标准的认识一直停留在浅表层面,这早已对教学语言水平的提高形成了不利的影响,根本无法适应现代化人才培养的需要。教学语言规范化的标准应体现教师行业语言的突出特点和教学工作对它的基本要求。其内容指标按程度可分为初、中、高级三个档次。这三个档次从内容、形式和方法等方面对教学语言的规范化作了具体而明确的规定,为真正优化教学语言的质量提出了前提条件。     

英语写作教学中语法反馈的探讨

语法问题一直是外语和第二语言教学广泛关注且颇有争议的话题。论述了英语写作教学中反馈及其作用,以及有关语法改错的讨论,并提出了有效反馈的具体方法及语法在写作教学中应有的位置。     

边远民族地区高校非专业大学英语教学环境的哲学分析

马克思主义哲学认为世界上一切事物和现象之间以及构成事物的诸要素之间存在着相互依赖、相互影响和相互作用。这种联系的观点同样适用于我国的大学英语教学。大学英语教学本身并不是孤立的,它的开展离不开一定的教学环境,教学环境是否有利于大学英语教学会直接影响大学英语的教学效果。改善和创设有利的校园环境和课堂环境是边远民族地区高校推进非专业大学英语教学改革、提高大学英语教学质量的重要途径。     

从杜夫海纳的困境中突围——《审美经验现象学》中的文学作品理论

作为现象学美学经典文本的《审美经验现象学》对审美活动进行了深入的剖析,但令人遗憾的是,杜夫海纳在该书中却回避了对同为艺术作品的文学作品的分析,这种回避源自杜夫海纳对于语言优先性的坚持。如果从语言的陈述性入手,或许可以为文学理论的构建提供一个新的思路。     

How culture influences foreign trade: evidence from the U.S. and China

Using a gravity model of trade and the U.S. and Chinese panel data, I present evidence that supports the views that linguistic links have become more important in foreign trade than geographical proximity and that linguistic influence on trade is more significant in China than in the U.S. The estimated result based on a broad panel of economies shows little overall relation between religious similarity and foreign trade in both the U.S. and China. But there is an indication that the religious dissimilarity tends to retard foreign trade with poor countries and regions and to encourage foreign trade with richer places. I also found that, although religious retardation on foreign trade is more significant in China than in the U.S., religious dissimilarity tends to retard the US export more than that of China; by contrast, it tends to retard the Chinese import more than that of the U.S. At last, the socio-economic implications of the estimated results are discussed.     

浅谈英语教学的改革与创新

通过对英语教学现状的分析 ,对英语教学的改革与创新做了初步的探讨 ,说明了教学改革势在必行 ,并提出了今后教学改革的思路。     

边远少数民族地区高校非专业大学英语教学中的矛盾与冲突

运用哲学的观点来看边远少数民族地区高校的非专业大学英语教学,可以发现边远少数民族地区高校的非专业大学英语教学存在着一些共同问题:学生英语基础与教学要求之间的矛盾与冲突;教师信息供应与学生信息需求之间的矛盾与冲突;学生理论学习与实践之间的矛盾与冲突;传统教学手段与现代教学手段之间的矛盾与冲突;大班授课与语言学习规律之间的矛盾与冲突。     

Unexpected but authentic use of an ethnically–marked dialect

Recent work on language crossing in the U.S. has examined the temporary appropriation of African American Vernacular English by white youth in an effort to participate in the current popularity and prestige of hip–hop culture, or in order to highlight racial boundaries. While such verbal behavior probably encompasses most white use of AAVE, it is not the only way in which whites (or other non–blacks) can use the variety. This paper presents a case study of the language of a 23 year old white female who makes consistent use of many distinctive linguistic features associated with AAVE. I argue that the interaction of ideologies of race, class, localness and language allow her to be considered an ingroup member despite her biographical race. This suggests that there is a tension between academic linguistic theory and actual speaker practice in assigning authenticity to individuals, and I conclude that language ideologies and other forms of qualitative evidence should be taken into account by sociolinguists looking at the link between language and race.