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新课程改革以来，小学英语教学的观念有了很大的转变，在英语教学中发生了可喜的变化，然而，依然存在一些不容忽视的问题，比如，语言材料单一，缺乏语言环境，课堂枯燥无味，评价呆板无力，等等。英语教学费时费力的问题仍然没有得到解决。 相似文献
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陈登福 《重庆大学学报(英文版)》2007,6(4):242-248
The mathematical model of high-efficiency continuous billet casting was developed, incorporating the effective spraying water coefficient and the effective specific spraying water flowrate of secondary cooling. To realize uniform cooling in secondary cooling zones, the spraying cooling structure and the arrangement of nozzles were redesigned and optimized, and an additional spraying cooling zone was used. A new secondary cooling model of spraying water was built. It was found that the required spraying water flowrate of a cooling zone was related with the casting speed, the casting temperature, the compositions of liquid steel and the cooling water temperature of secondary cooling. The operation of the reformed caster proved that the spraying cooling structure and the new secondary cooling model were suitable, and the casting speed was greatly enhanced. The highest casting speed was (3.8 to 4.0) m/min for billet with a section of 150×150 mm2. The quality and the output of the billet were improved, and the economical benefit was heightened. 相似文献
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过去人们把学校称为"学堂",学堂可理解为学习的场所.从这点上来看,学校是以教学为中心,而教学应以学生的学习为中心,学生在学习中应是主人.因此,教学中要相信学生,做到"三不讲":过于简单的且学生能通过看书自学掌握的内容不讲;应该让学生操作实践后才得出结论的内容不讲;能让学生讲的内容教师不讲. 相似文献
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在高扬学生主体旗帜的今天,广大教师已深刻认识到学生主体的重要性,也承认了学生在学习中的主人地位,在教学实践中也非常注重让学生参与。然而,学生往往是在教师事先备好课,设计好方案的情况下参与教学。这种方案,是在学生完全不知情的情况下做出的,不管学生喜不喜欢,愿不愿意,教师都要让学生参与到教师设计的活动中来,让学生去完成教师预先设计的任务,让学生往教师预设好的套子里钻。 相似文献
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英语教学一直是困扰我国教育工作者的教学瓶颈。如何突破这一瓶颈呢?我们开始了长期、艰苦的不断探索:采用深港合编教材;根据新课改要求,转变教育教学理念,转变师生角色;采用多种教学方式,在课堂上进行激趣,创设情境进行语言交际; 相似文献
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