初中历史教学中运用探究性学习的策略

历史探究性学习改变学生原有历史学习方式，把探究性学习渗透到教学之中，充分发挥学生的主体作用，历史教学就一定会充满生机和活力。     

恰当运用多媒体技术给历史教学增色

在历史教学中恰当运用多媒体技术，可以提高学生学习兴趣，激发学生求知欲，从视觉、听觉等许多方面让学生去感受历史，了解历史，发现历史。给课堂教学注入新的活力。让多媒体信息技术为历史教学增色，提高教学时效。     

高中历史教学方法简论

高中历史的学习不仅需要记忆较多的知识点，还需要改进学生的学习方法、培养学生的思维习惯从而有效的提高历史成绩，通过这些方法增强学生学习历史的兴趣，使他们有更加充分的信心应对高考。为此，就需要历史教师不断改进教学方法和手段，不断进行教学创新，通过灵活的教学方式，创新的教学方法，从而增加历史学习的乐趣，提高学生学习和记忆相关历史知识点的效率。     

浅谈高中历史教学的现状与解决策略

随着教育不断的改革，传统的历史教学在很多方面都不能适应人才培养。一味勾画重难点，让学生死记硬背的方法枯燥乏味，压抑了学生的思维能力的提高，学生也不能以历史学习提高自己的文化素养。那么，在历史新课标下，又对历史教学提出怎样的要求，学校在进行教学时，要如何根据历史的教学目标，提出适当的方法来解决历史教学所呈现的现状呢？     

浅析初中历史学习型课堂的构建

在初中历史教学中，教师要构建学习型的课堂，利用这种课堂的优势帮助学生学习历史知识，并且提升学生学习能力和综合能力。教师应该转变教学观念，在课堂教学中将学习型课堂的优势发挥到最大，确保历史学科教学任务的顺利完成。     

高中历史教学中对学困生非智力因素的培养探讨

高中历史教学中有很多非智力因素的学困生，他们缺少对历史课程的学习兴趣和正确的学习方法，学习态度不端正，因此历史成绩差。要想改变这种现状，作为高中历史老师我们必须要加强对历史学困生非智力因素的培养，引导学生喜欢学习历史课程，学会学习历史课程，提高学生的历史学习能力和学习成绩。     

高中历史教学方法简论

高中历史的学习不仅需要记忆较多的知识点，还需要改进学生的学习方法、培养学生的思维习惯从而有效的提高历史成绩，通过这些方法增强学生学习历史的兴趣，使他们有更加充分的信心应对高考。为此，就需要历史教师不断改进教学方法和手段，不断进行教学创新，通过灵活的教学方式，创新的教学方法，从而增加历史学习的乐趣，提高学生学习和记忆相关历史知识点的效率。     

关于高中历史教学中体验式学习的探究

随着基础教育课程改革的逐渐深入，首要任务是我们需要转变学生当前的学习方式。高中历史即使是高考文科的考试科目之一，但是大部分学生讨厌学习历史，这很大程度影响了教师教学效果与学生学习质量。因此，为了完善这种不足，教师需要引导学生进入体验式学习，激发学生学习历史兴趣，进而提高高中历史教学水平。     

中学历史课堂教学知识结构优化研究

中学历史教学主要是以课堂教学的形式来传授学生知识的。中学历史是一门十分基础和重要的文化课，它帮助中学生了解和认识中外历史事件，了解历史的发展，在此基础上影响学生的思想道德的培养，培养学生的历史思维逻辑，正确认识历史发展规律，培养学生良好的社会观和价值观。而随着新课改的进行，中学历史的知识结构作为学生学习和了解历史知识的一个重要方式，为了使学生能够更好的学习了解历史知识。为了更好的激发学习兴趣，更好的传授学生历史知识，本文对中学历史课堂教学知识结构优化进行探讨和研究。     

浅谈如何提高初中历史教学质量

初中的学习能够帮助学生更好的认识历史，了解历史的发展进程，学习历史人物的一些优秀品质，提高学生的思维能力。本文结合自己的实际教学情况，就如何做好初中历史教学提出了相关策略。     

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.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

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.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

Jane Eyre——A Feminist In The 19th Century

In the 19th century the society was controlled by men, and women were just appendants of them, they had not any rights and freedom. But Jane was an exception, she showed some characteristics of early feminist. Jane showed her characteristics of feminism in three aspects: rebellion, equality, and independence. These characteristics were helpful to her success, and feminism is the only way out for women of that time.     

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-