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有些形近字的字形相似得就像孪生姐妹一样,让人难以辨认,学生有时会把它们张冠李戴,互相混淆。在教学中,我发现顺口溜不但可以激发学生的识字兴趣,还可以帮助他们更好地记住形近字,学生写字的错误率大大下降。如:区别“辩”、“辫”、“辨”与“瓣”时,我编的歌谣是:辛辛俩人在说话,中间有言来争辩;辛辛两个小姑娘,都用丝带扎发辫;辛辛中间有点撇,请你仔细辨一辨;辛辛俩人种南瓜,开出黄黄的花瓣。区别“泡”、“袍”、“跑”、“刨”、“抱”时,编成顺口溜:有水吹泡泡,有衣做旗袍,有足飞快跑,有火能点炮,用刀刨一刨,伸手来拥抱。区别“戍”… 相似文献
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INTRODUCTION The conformational property of polymerchains subject to a geometrical constraint is one of themost interesting topics in polymer science (Milner,1991; Malfreyt and Tildesley, 2000; Vacatello,2001). The geometrical constraint can be a solidsurface, a liquid/liquid interface, a vacuum/liquidinterface, etc. So the topic has many applications intechnology such as adsorption onto interface, sta-bilization of colloids and partition equilibrium ingel permeation chromatography… 相似文献
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Investigation of the conformational properties of a SAW polymer chain near an impenetrable, non-interacting flat surface showed that the chain at first contracted and orientated itself to slightly parallel when it pulled close to the surface and at last elongated and reoriented itself to slightly perpendicular to the surface at very small distance from the surface. Simulation showed that most of the disappeared configurations were of large size at moderate distance from the surface while they were of small size at very small distance from the surface; and that the mean-square end-to-end distance was much more prone to be influenced by the surface than the mean-square radius of gyration . The orientational correlation between the direction of the longest principal axis of the moment of inertia and end-to-end vector was also discussed. 相似文献
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有些形近字的字形相似得就像孪生姐妹一样,让人难以辨认,学生有时会把它们张冠李戴,互相混淆。在教学中,我发现顺口溜不但可以激发学生的识字兴趣,还可以帮助他们更好地记住形近字,学生写字的错误率大大下降。如:区别“辩”“、辫”“、辨”与“瓣”时,我编的歌谣是:辛辛俩人在说话,中间有言来争辩;辛辛两个小姑娘,都用丝带扎发辫;辛辛中间有点撇,请你仔细辨一辨;辛辛俩人种南瓜,开出黄黄的花瓣。区别“泡”“、袍”“、跑”“、炮”“、饱”“、刨”“、抱”时,编成顺口溜:有水吹泡泡,有衣做旗袍,有足飞快跑,有火能点炮,用刀刨一刨,伸手来… 相似文献
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为了激发学生的学习兴趣,提高识字教学质量,我采用了丰富多彩、灵活多样的方法和学生合作学习,让学生在轻松、愉悦的环境中学会生字。1.求异同巧识字。学生之所以容易写别字,是因为这些字有相同之处,可采用同中求异识记法识记生字。如,区分音近字“飘”和“漂”,跟“风”有关的用“飘”,如“飘扬”,跟“水”有关的用“漂”,如“漂洗”。“佰”和“伯”(“伯”是多音字,另一个读音是“bó”)有一个读音相同,形相近,都与“单人旁”有关,很容易误用,区别它们要从字义上去理解。2.编顺口溜巧识字。有些字的字形非常相似,像孪生姐妹一样,使人难以… 相似文献
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"物理化学"是应用化学专业的一门重要基础课程。在课堂讲授中注重与专业课程内容的衔接,注重与实验教学等实践性环节相关内容的衔接至关重要。本文将主要从"二组分系统的气液平衡相图"的授课方式探讨如何提高应用化学专业"物理化学"的课堂教学效果。 相似文献
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通过建立虚拟化学实验室,进一步改革化学实验教学模式、实验内容,提高学生的动手能力和创新能力。 相似文献
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