电阻测量实验的拓展

电学实验的考查是以课本中实验为原型，在实验目的、实验原理、实验器材、实验步骤、数据处理以及实验组合等方面进行拓展、延伸、变化，使电学实验试题充满新意，源于课本而高于课本，要求能灵活运用直流电路知识，独立选择实验器材，设计实验电路，获得实验结果．     

物理实验之后的反思

教学中引导学生进行反思，对进一步理解实验、深化实验、完善实验起着重要的作用。通过反思可总结实验规律，优化实验方案，创新实验没计，揭示实验本质，增强实验效果。那么，物理实验之后应反思些什么呢？     

初中化学新课程探究实验教学浅析

传统的以知识为中心的化学实验教学，实验往往是理论知识的“附属品”，无论是教师的演示实验还是学生实验，基本上都是验证性实验。学生在做实验时，只要按部就班地遵照课文中描述的实验步骤或是模仿教师的实验操作验证出已有的实验结论就算完成实验任务。他们既不会对实验现象提出质疑，也不敢对实验方案进行“异想天开”，以至于不少学生还养成了“做实验不如看实验，看实验不如背实验”的思维定势。     

从四个不同的特性来探究物理实验

（一）研究性实验 研究性实验是通过实验中出现的现象，来分析这个现象的原因和规律，要注意这类实验条件与现象的关系，明确实验目的，要保证实验条件，并注意观察实验现象，分析实验现象与条件之间的关系，以达到研究性实验的目的．这都是高考命题可能考查的要点．     

中考热学实验题考查分析与复习指导

对历年全国各地的中考热学实验题统计分析表明，中考对热学实验考查有：①考查实验目的，②考查实验原理，③考查实验器材，④考查实验记录，⑤考查实验结论几种情况，本对有关实验题作分类分析如下：     

设计性实验的解答策略与考题分析

设计性实验是在掌握基础实验、基本测量工具之后，完成指定的实验任务而进行的综合实验。它包括确定实验方案、选择实验仪器、拟定实验步骤、调控实验条件、观察记录和处理实验数据、误差分析等等。完成设计性实验，不仅需要一定的理论知识，实验技能，     

浅谈高考物理实验复习备考应对策略

实验能力是高考物理要考查的五大能力之一，它要求学生能在理解的基础上独立完成“知识内容表”所列的实验，明确实验目的，理解实验原理，控制实验条件；会运用这些实验中学过的实验方法；会正确使用在这些实验中用过的仪器；会观察分析实验现象，处理实验数据．并得出结论。     

高考物理实验“形散而神不散”

高考命题中尤其注重实验设计和实验能力的考查，在实验复习中，要特别注重实验原理的复习和实验方法的指导，高中物理的重头戏在“电学实验”，物理实验的难点，学生感到难以驾驭的探究性实验都落在这里，把握了电学实验，就可以说抓住了关键，也就成功了一半，以下对高考部分电学实验题作一些简要分析，从中我们可以看到实验考查中的“形散而神不散”。     

生物学实验题的题型及应对策略

生物学是一门实验科学，实验题一直是高考的重要内容．从近几年高考实验题型的变化来看，借助实验方法创设新情境，侧重考查考生对实验进行解释和分析的能力已成为命题趋势，其中设计型实验题更是热点．所谓实验设计，就是要求考生设计实验原理，选择实验器材，安排实验步骤，设计数据处理的方法及分析实验的现象。     

浅谈初中生物自主实验能力的培养

生物实验一般分为演示实验、学生实验、家庭小实验及选做实验四大块。在实验教学中，学生实验操作技能的掌握，一般是通过观察教师的实验演示，获得感性认识后，辅以学生分组实验，再使学生学会实验方法。这样的实验教学，学生虽有章可循，可“照方抓药”，却使学生在实验教学过程中带有明显的被动性，它无法培养学生的实验创新能力，易阻碍学生思维空间的拓展。因此，在实验教学中注重学生自主实验能力的培养是当前生物实验教学中一个值得研究的课题。     

卡思卡特城堡

It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,     

不同的吃喝玩乐

一、吃和喝吃苹果 eat an apple, 吃药 take medicine,吃糖 have some sweets,吃饭 have one's meals,吃馆子 dine out,吃惊 be surprised/     

漏洞百出的教育

Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help?     

Western and Eastern culture differences in commercial field

The communication of people partially is the communication of cultures. Culture has a direct effect on international commercial activities in all aspects. Different conceptions about time, space, equality, law and the like, lead people to deal with things in different ways. So to know cultures of the counterpart is to facil-itate our enterprises so as to have a smooth and successful communication in commercial activity.     

只要努力,不要后悔

There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love.     

浅谈移民问题

Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject.     

风的曲线

Rosco and I wait for the fishermen to return.I sit at a wooden bench near the store at Mt.Baker Resort and watch the clouds change shape. Rosco has my belt around his neck and an eight foot tow chain hooked to a tree. Dogs must be on a leash. Ducks and rabbits are loose.     

Sister Carrie, an Adherent of Desires

Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities.     

Improvement of one-cycle controller by use of proportional integral differential controller

1.IntroductionOne-cyclecontrolmethod,whichwasproposedaboutonedecadeago[1],hasbecomeanattractivemethodinspecialfieldssuchaspowerfactorcorrection[2-6],switchingamplifiers[7,8],etc.Themainideaofthiscontrollerisbasedonintegrationofdiodevoltageinone-cycleandforcesittobeexactlyequaltothereferencevalue.Themainadvantageofthiscontrollerisitsrealtimeabilitytorejectthevariationofinputvoltage[1].Despitethisgreatability,ithasnogoodperformancesinrejectingofloaddisturbanceandfollowingreferencecommands.Espec…