关于班主任对高考学生心理疏导方法的研究

近年来,高考学生的心理动向一直是社会关注的焦点,很多学生产生不积极的思想。来自社会各界的压力,使学生在面对高考时往往显出恐惧心理,这种恐惧心理影响着他们的发展。作为班主任,让学生走出这种困境是工作的重点,并且学会认真总结工作重点。通过分析高考学生心理现状,提出解决策略。     

浅谈高考化学总复习

教师要认真研究高考复习的新方法、新动向,这样才能使学生在高考中立于不败之地。     

高考文言文内容理解题应对策略

文言文是高考考查的重点,也是学生普遍认为的难点。本文从高考命题角度和学生答题现状出发,对信息筛选、概括分析等文言文内容理解题进行技巧性破解,希望对考生应考有所帮助。     

高中英语教学中阅读能力的培养

阅读理解是高中英语教学的一个重要内容,在高考中所占的比重也是举足轻重的,但是普通高中学生的阅读理解能力参差不齐,严重地影响到了学生英语学习的兴趣,进而影响到学生高考的成绩。笔者通过多年的英语教学工作,从多方面论述了如何培养高中学生的英语阅读能力。     

高考语文备考之阅读训练探究

在高考语文试卷中,阅读题目占据较大的比重,所以在高中语文教学过程中,教师要重视对学生进行阅读反面的训练。笔者认为,要提升学生的阅读能力,以更好地备战高考,需要教师特别注意提升学生的阅读能力、归纳能力和提取题目中心的能力。     

一堂习题讲评课后的诊断与反思

习题讲评课是迎接高考复习过程中一种非常重要的课型,在高三地理复习中,通过诊断学生在答题中反映出来的问题,进行教学反思和改进,帮助学生补救地理学习中的漏洞,是提高地理教学有效性和提高高考成绩的重要途径。     

对高考地理后期复习的思考

<正>进入二轮复习的后期,高考渐至,认识高考,调整教学思路,成为每位老师的必修科目。分析地理高考试题,明显表现出注重考查学生的地理学习能力和学科素养,即学生对所学相关课程基础知识、基本技能的掌握程度和综合运用所学知识解决问题的能力。在一线教学中有更多感触,教师日常努力的方向可能与高考的要求是有偏差的,这在复习的后期将产生更大的问题。我们的复习教学一点点抠教材,强调记住知识,但高考命题的人却在脱离教材,甚至产生中学老师看来     

数列中由递推求通项的方法

数列是学生学习的难点,求通项是其中最重要的内容,数列的通项公式表达了数列的函数本质,由递推求通项是高考数列命题的热点题型。本文从近年高考试题的重点——一阶递推入手,分类解析各种由递推求通项的方法,望能对学生有所帮助。     

如何有效提高高中语文教学质量

高中是学生语文学习的最重要的一个阶段,是提升学生综合语文素养的最关键的时期。高中语文作为高考的主考科目之一,关系到学生的总体成绩和高考水平。因此,无论是教师、学生还是家长都给予了语文高度的重视。但目前的高中语文教学还存有一些问题严重阻碍了自身教学质量的提高。本文中笔者就针对目前的教学现状提出了一些具体的建议和意见,以期能够有效提高高中语文的教学质量。     

新课改下农村高中学生作文教学之我见

高中阶段语文教学在一定程度上是在培养学生听、说、读、写的语文综合能力,这是高中语文教学的首要任务。面对高考最终要求学生在高考考场上规范、巧妙地"写"出来,这就要求无论在指导思想方面,还是在具体实践范操作方面,都应做到有的放矢。针对新课改下高考作文教学,在教学实践中不断思考,及时总结、反思高考语文作文中的"得"与"失",取得了一点收获,愿与同行分享。     

Attempts to train goldfish to respond to magnetic field stimuli

Two different conditioning procedures, one appetitive and the other aversive, were used in separate attempts to demonstrate response to magnetic fields in the goldfish, Carassius auratus. Our results lead us to question those of an orientation experiment by Becker, although we recognize the possibility that goldfish may be sensitive primarily to magnetic field direction rather than intensity and that their directional sensitivity may be evidenced most readily by orientation in the field.     

从生态旅游到低碳旅游——从理念到实践

阐述了生态旅游、低碳旅游的基本概念,分析了生态旅游存在的不足,提出低碳旅游的量化及建立各项标准及其指标评价体系并将之融入低碳旅游全过程以实现低碳旅游的标准化,重点在于实现低碳理念、低碳参与者及低碳实践3个方面的有机结合,以促进旅游业的可持续发展的可操作性建议.     

以学定教,提高课堂教学效率

根据心理学理论,学习是一个学生内化的过程,学生是自主学会的,而不是被动教会的。因此在教学中,教师只有做到以学定教,才能有效提高教学效率,促进学生对知识的掌握。     

如何做好突发环境事件应急监测的快速响应

应急监测是突发性环境污染事故处置中的首要环节,是对污染事故及时、正确地进行应急处理、减轻事故危害和制定恢复措施的根本依据。文章从制定应急监测预案、加强应急监测能力建设、摸清污染源状况、加强应急培训和应急演练等方面对做好突发环境事件应急监测的快速响应作了简要的阐述,供大家探讨。     

Croppers to livestock keepers: livelihood transitions to 2050 in Africa due to climate change

The impacts of climate change are expected to be generally detrimental for agriculture in many parts of Africa. Overall, warming and drying may reduce crop yields by 10–20% to 2050, but there are places where losses are likely to be much more severe. Increasing frequencies of heat stress, drought and flooding events will result in yet further deleterious effects on crop and livestock productivity. There will be places in the coming decades where the livelihood strategies of rural people may need to change, to preserve food security and provide income-generating options. These are likely to include areas of Africa that are already marginal for crop production; as these become increasingly marginal, then livestock may provide an alternative to cropping. We carried out some analysis to identify areas in sub-Saharan Africa where such transitions might occur. For the currently cropped areas (which already include the highland areas where cropping intensity may increase in the future), we estimated probabilities of failed seasons for current climate conditions, and compared these with estimates obtained for future climate conditions in 2050, using downscaled climate model output for a higher and a lower greenhouse-gas emission scenario. Transition zones can be identified where the increased probabilities of failed seasons may induce shifts from cropping to increased dependence on livestock. These zones are characterised in terms of existing agricultural system, current livestock densities, and levels of poverty. The analysis provides further evidence that climate change impacts in the marginal cropping lands may be severe, where poverty rates are already high. Results also suggest that those likely to be more affected are already more poor, on average. We discuss the implications of these results in a research-for-development targeting context that is likely to see the poor disproportionately and negatively affected by climate change.     

Soil microbial response to herbicides applied to glyphosate-resistant canola

Adoption of glyphosate-resistant canola (Brassica napus L.) has increased glyphosate applications to this crop, and concerns have been raised about unintended consequences of these multiple applications. A field trial was conducted to evaluate the effects of pre-seed and in-crop glyphosate and alternative herbicides on soil microbial community functional structure, diversity and biomass. Pre-seed treatments were 2,4-D, glyphosate and 2,4-D + glyphosate, and in-crop treatments were glyphosate applied once, glyphosate applied twice, ethalfluralin, ethalfluralin + sethoxydim + ethametsulfuron + clopyralid, and sethoxydim + ethametsulfuron. Rhizosphere and bulk soil was collected at flowering stage of canola and analyzed for bacterial community-level substrate utilization patterns and microbial biomass C (MBC). Where differences were significant, pre-seed application of both 2,4-D and glyphosate altered the functional structure and reduced the functional diversity of soil bacteria, but increased MBC. These effects were not necessarily concurrent. The reduction in functional diversity was due to reduction in evenness, which means that the soil where both pre-seed herbicides had been applied was dominated by only few functional groups. In 1 year, two in-crop applications of glyphosate also reduced the functional diversity of soil bacteria when applied after pre-seed 2,4-D, as did in-crop sethoxydim + ethametsulfuron following pre-seed glyphosate. Even though significant differences between herbicides were fewer than non-significant differences, i.e., there were no changes in soil microbial community structure, diversity or biomass in response to glyphosate or alternative herbicides applied to glyphosate-resistant canola in most cases, the observed changes in soil microbial communities could affect soil food webs and biological processes.     

亲近自然的一条捷径——向你推荐《生物多样性知识达人手册》

"它随处可见,从最大的海洋到最小的水坑,从最茂密的森林到最干旱的荒漠,从最富饶的沼泽到最高的山峰……它是一个活的银行账户,为人类全部事业和财富提供资本.它是什么?它就是……生物多样性." 翻开《生物多样性知识达人手册》的第一页,在"开头的话"中,你就能读到上面这一段饶有趣味的文字,让你不自觉地联想到我们所处的环境和我们赖以生存的地球.没错,这是一本新鲜出炉的、以生物多样性为主题的读物,用生动有趣的方式告诉你,什么是生物多样性?生物多样性为什么重要?你怎样才能保护好这个星球的生物多样性?     

浅谈如何做好孩子的入学准备

从幼儿园升入小学是孩子迈入知识殿堂的关键一步,也是孩子人生的一大转折。如何协助家长和教师,帮助孩子顺利实现这次转折是非常重要的。基于此目的,结合多年从事幼小教育工作的实际,并根据教育部颁布的《幼儿园教育指导纲要》精神,紧扣学前儿童的心理和学习特点,阐述如何让孩子在各方面得到系统的锻炼和提高,为顺利升入理想的小学、并尽快适应小学阶段的学习和生活做好准备。     

重归大自然——密西西比河之行

密西西比河是美国第一大河。它一路曲曲弯弯向着墨西哥湾蜿蜒流去．沿途形成广袤的洪泛平原,滋润着美国大陆41％的土地。水量也比美国其他河流都要多。密西西比河及其洪泛平原哺育着400多种野生动植物。北美地区40％的水禽都沿着密西西比河的路径迁徙。密西西比河对于美国。如同长江对于中国,无论从经济还是生物多样性保护等方面,其作用都是举足轻重。