苦参粗提液对菜青虫、梨蚜的防治作用

通过试验表明,苦参粗提液对菜青虫、梨蚜具有杀虫效果,试验同时还测定了样品中的叶绿素含量,以此来验证苦参粗提液对植物的生长是否具有调节作用,对被防治对象的生理有无影响.     

The effects of college students’ positive thinking,learning motivation and self-regulation through a self-reflection intervention in Taiwan

This quasi-experimental study examined the effects of a self-reflection intervention on college (college in this article refers to university-level education) students’ positive thinking, learning motivation and self-regulation in Taiwan. One hundred and two college students were selected to participate in an 18-week intervention forming the experimental group (EG) which emphasized providing main lecture, role-play, self-reflection activity, group discussion and group work. Another 179 college students from two other courses were selected as a comparison group. This study showed that supportive, resourced discussion with peers and instructor, self-reflection activities and assignment as a facilitative agent improved the EG students’ positive thinking, learning motivation and self-regulation. In addition, three structural equation models revealed that positive thinking had a strong and direct relation to Taiwanese college students’ pretest learning motivation (β?=?.85) and self-regulation (β?=?.77); learning motivation had a strong and direct relation to students’ pretest positive thinking (β?=?.86) and self-regulation (β?=?.81); and self-regulation had a strong and direct relation to students’ pretest positive thinking (β?=?.83) and learning motivation (β?=?.86). Instructional implications and research recommendations are discussed.     

论图式理论与高职英语写作教学

如何改进高职英语写作教学,提高学生的英语写作能力,是长期以来困扰着众多的高职英语教师和学生的一个难题。本文将已在阅读教学中得到了广泛运用的图式理论运用于英语写作教学中,将阅读和写作结合起来,激活、巩固已有的有关英语写作的图式,同时创建了有助于提高学生的英语写作水平的新图式。     

Investigation of iodine concentration in salt,water and soil along the coast of Zhejiang,China

Objective: We aim to describe the environment iodine concentration in salt, water and soil along Zhejiang Province coast in the China foreland. It will be helpful for us to judge whether this area is insufficient in iodine and universal iodized salt is necessary or not. Methods: We collected iodized salt samples, drinking water samples (tap water in the towns, and well water or spring water in the villages), water samples from different sources (ditches, lakes, rivers) and soil samples through random sampling in June, 2005. Salt, water and soil iodine was detected by arsenic-cerium redox method. Statistical analysis was expressed as mean±SEMby Windows SPSS 13.0. Results: (1) The iodine concentration in salt was 27.9±4.33 mg/kg (n=108). (2) Seventy-five water samples were collected. The water iodine value was 0.6～84.8 μg/L (mean of 11.66 μg/L). The watershed along the Qiantang River has significantly higher iodine content than the water in Lin'an in mountain area (P＜0.01). The iodine content and mean iodine content of tap water, well or spring water and natural water sources were 4.30±2.43 μg/L (n=34), 23.59±27.74 μg/L (n=19)and 12.72±10.72 μg/L (n=22) respectively. This indicated that among environmental water sources, the ditch iodine content was the highest with river water iodine being the lowest (P＜0.01). (3) Soil iodine value was 0.11～2.93 mg/kg (mean of 1.32 mg/kg).Though there was no statistical difference of soil iodine in different districts (P=0.131), soil iodine content correlated positively with water iodine content. Conclusion: Iodine concentration in salt accords with national policy of adding iodine in salt. Foreland has more iodine in water than mountain area. The data reflected that water and soil iodine in foreland area was not high, which suggests universal iodized salt should be necessary. Environment iodine has relatively close association with pollution.     

职业教育的本质属性与发展模式选择

进入新世纪，职业教育确立了以服务为宗旨、以就业为导向的发展思路，提出了职业教育办学思想要实现三个转变：一是从计划培养向市场驱动转变；二是从政府直接管理向宏观引导转变；三是从专业学科为本位向职业岗位和就业为本位转变。其最终目的是要求职业教育建立一条有别于普通教育的发展模式。     

小学科学课程:国际趋势与政策建议——基于10国课程标准的比较

我国小学科学课程标准实验稿颁布十余年来,纷争一直不断.研读国外小学科学课程标准文本,总结国外小学科学课程改革经验与发展趋势,有助于为我国标准的修订与完善提供借镜.综观国际经验,有关我国小学科学课程标准完善的建议主要为:完善课程目标维度,增加具体化的纵向目标;优化课程内容领域,合理设置课程模块;优化课程内容选择与组织,认真对待科学知识;优化课程内容呈现,指导教材编制;细化课程实施建议,为教师提供切实帮助;改进课程评价,制订具体可行的评价标准.     

休闲英语（64）

编者语：美国是一个热爱体育的民族。体育运动也影响着其英语表达。今天。我们就来看看日常生活中和体育运动相关的一些表达。尤其是和球类相关的表达。     

Analysis of the Tragic Female Images in Eugene O'Neill's Plays

Ruth and Mary are two heroines in Eugene O’Neill’s plays Beyond the Horizon, and Long Day’s Journey into Night. They have some similarities: when they are young, they are beautiful, native and full of hope towards the future life, but both make wrong choices; in the following years, both suffer a lot from these wrong choices, and feel regretful. This paper tries to explore these two tragic female images.     

基于GIS的中小学应急救援指挥系统的设计

以石家庄市为例,以GIS为平台,结合数据库系统,研究开发了中小学应急救援指挥系统.分析了此系统设计的原则、系统架构及特色、系统功能模块和系统的数据库设计,此系统的使用有利于在突发状态下进行通讯指挥,最大程度地预防和减小灾害造成的损失.     

地方高职院校应该成为区域发展的＂四个中心＂——欠发达地区高等职业教育办学特色研究

在社会主义市场经济条件下,地方高职院校面临生存和发展的激烈挑战,走特色化发展之路,既是国际高等教育发展中揭示出的一条有效的发展途径,又是我国经济转型对高等职业教育发展的内在要求。本文根据高等职业教育的服务理论提出了要把地方高职院校打造成为区域发展的“四个中心”。