高三化学冲刺复习方法

高考前的两个多月时间，是高考最后冲刺阶段，在有限的时间里只能做有限的复习。备战高考是一个综合性很高的工作，教师与学生的良好互动十分关键。在新课改的背景下，考试大纲与新课程标准是高考复习的根本依据，复习过程中，     

学习《1997年全国普通高考数学试题评价报告》的几点思考

透析1997年高考数学试题评价报告，概述近年来高考数学试题的主要特点及其对中学教学的导向，结合一组统计数据，对改进高考命题工作提出几点思考与建议。     

新课标高考概率统计试题浅析及启示

概率与统计在生产与生活中有着广泛的运用，由于概率统计应用的广泛性，使其成为每个公民的必备常识，成为高考持续的命题热点，今年是我省新课标高考的第一年，“概率与统计”内容应该显现新课标的特色。这一点从新课改省份（海南、广东、山东、宁夏、江苏）的高考试题上可见一斑。     

高考物理备考方略

距离2010届高考还有两个多月，在这有限的时间中，如何备战物理高考，是与我们每个考生都息息相关的大事。     

2009高考冲刺阶段总复习之生物

今年是辽宁省新课改后的第一届高考。面对这样一届特殊的高考，面对与高中课改相配套的新的高考方案，怎样复习，有何遵循？如何使最后这一个多月的备考更具有针对性，从而有效提高考生成绩和信心，作好最后的冲刺，可能无论是考生还是家长都还是一头雾水，青年科学杂志为回馈广大读者多年的厚爱，特邀辽宁省实验中学、沈阳二中等名校的各学科名师，就辽宁省普通高中课程改革指导意见中规定的相关课程内容、命题取向和题型等，结合山东、浙江等先行课改高考省份的高考试卷，有针对性地对高考各科复习冲刺提出极具价值的复习建议和题例解析，希望能对辽宁省的广大考生有所裨益。     

浅谈体育考生的考前准备与指导

考前准备与指导是体育高考不可忽视的内容，了解学生实际情况，注重体育训练，考前心理、考前的合理准备和指导，有利于充分发挥学生潜能，促进考生高考成绩的正常发挥。     

高考试卷与教材阅读技能考查特点对比研究

本文使用语料库研究手段，从类型和比重方面将高考试卷和教材中的阅读技能考查情况进行对比。发现与高考试卷相比，教材对某些阅读技能的练习还不够充分。教师可针对这些不足借助语料库工具帮助学生更直观地把握这些技能的考查思路，更好的备战高考     

高考数学试题风格与中学数学教学导向

高考数学试题风格与中学数学教学导向尚琦瑛，韩生亮（陕西定边中学）有利于高等学校选拔人才，有利于中学教学改革是高考命题工作的基本指导思想。纵观近十年来的高考数学试题，虽在难度上各有差异，但都坚持了＂标准化、出活题、考基础、考能力＂的命题方向，形成了稳定...     

酷头哈妹

江苏省率先在高考英语加试听力以来，它在整个试卷中占有举足轻重的地位。2008年在高考英语试卷总分降至120分的情况下，听力所占分值仍然较高（20分），听力试题做得成功与否直接关系到考生英语分数的高低。因此，广大考生必须认真研究分析高考英语听力试题特点及高考要求，只有明确了高考听力要求，了解了高考听力试题的题型结构和听力材料的特点，掌握了听力考试中的应试技巧，方能取胜听力，取胜英语，赢得高考。     

谈高考英语写作备考

本文对近几年来高考试卷写作题的分析，总结了高考写作题的命题特点和趋势，以及高考对学生写作能力的要求。从高考写作部分的学生得分情况来看，学生写作得分不高，影响了英语总成绩。通过分析一些考生写作中常犯的错误，找出影响考生高考英语写作的因素．并提出了排除这些不利因素的方法，帮助考生顺利完成高考写作备考。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that