中澳两国建设学前教师队伍的政策及启示     

刘天子  曾晓东 《基础教育参考》2019,(20):10-13

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五彩足印     

鲁锋  曾杉杉 《红领巾》2002,(5)

真意外,今天我家来了两位久违的朋友——两只活泼可爱的燕子。我认识这两只燕子,它们曾寄居在我们家。真想不到今年它们竟飞回来了。小燕子轻轻转动着小小的头,环顾四周,眨巴几下黑豆似的眼睛,低声嘀咕了几句,又绕着房梁飞了几圈,然后依依不舍地飞出了家门。直到晚上,也没见它们回来。  相似文献   

你会答题吗？     

曾国雄 《物理教学探讨》2002,(3):7-8

问答题的功能极为广泛，是检测应试较高层知识和能力的题型，通过答题过程可以看出应试的识记能力，对所掌握知识的组织概括能力，运用双基知识、分析、解决实际问题的能力。以及应试对一件事物、过程的表达能力等，这些功能是其它题型难以完成的。  相似文献   

友谊与团结     

H·G·伽达默尔 《安徽师范大学学报(人文社会科学版)》2002,30(5):497-501

古代的哲学家几乎没有不在其理论、演说或著作中提到"友谊"这个概念.只有了解的人才会知道,大师亚里士多德在他的三本伦理学著作中赋予友谊概念以核心的地位;而康德这位思想上值得吾人敬重的哲人,在其人类学演讲录中,却只给友谊一页的篇幅.尽管如此,他还是说出了值得我们深思的真理:"真正的朋友稀少如黑色的天鹅."  相似文献   

Immediate effects of the use of modified take-off boards on the take-off motion of the long jump during training     

Koyama H  Muraki Y  Ae M 《Sports biomechanics / International Society of Biomechanics in Sports》2006,5(2):139-153

We investigated the immediate effects of the combined use of inclined and raised flat boards on the take-off motion of the long jump. Eight male long jumpers were videotaped with two high-speed video cameras (250 Hz) set perpendicular to the runway. The athletes jumped with three modified take-off boards: upward-inclined boards of two different inclinations (2.5 and 5.0 degrees), and a raised flat board (50 mm high). The jumpers performed pre- and post-jumps using their own techniques before and after use of the boards to test their effects. The post- jump revealed significantly less reduction in the horizontal velocity during the take-off than the pre-jump, and the effectiveness of converting the velocity from horizontal to vertical increased significantly in the post-jump. The post-jump demonstrated significantly less knee flexion of the take-off leg during take-off. The reduced knee flexion and slower extension velocity of the take-off leg in the second phase of the post-jump contributed to increasing the knee extension torque in the second phase and resulted in the increases in vertical ground reaction force and vertical velocity. These results suggest that the combined use of the inclined and raised flat boards induced immediate effective changes in the kinematics and kinetics of the take-off motion and represent appropriate training tools for take-off techniques of the long jump.  相似文献   

试论增强电视新闻节目的可观性     

曾雪艳 《新闻天地》2001,(1):23-24

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健美操运动中造型美、节奏美、气质美的艺术特征   总被引：7，自引：1，他引：6  

冯娟  林昭绒 《体育成人教育学刊》2004,20(2):62-63

阐述了健美操运动中优美动作之造型美，节拍鲜明之节奏美，内外合一之气质美的艺术特征。健美操运动中造型美的艺术特征是主体创造性、生动可视性和形象具体性；节奏美的艺术特征是主体的创造性、创造的动态性、时间的片断性、动作的对称性、节拍的变化性；气质美的艺术特征是主体的自然性和社会性。  相似文献   

我的梦想     

曾翘楚 《小学生时空》2004,(2)

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让细节说话     

曾福华  李鹏 《声屏世界》2002,(10):54

没有细节的电视新闻只能给人苍白无力的感觉。几乎每个电视新闻从业人员都清楚地知道真实是电视新闻的生命线,但如何让观众认可你的片子的真实性,我们的记者往往忽视了细节在表现真实性上至关重要的作用2000年,宜春市所辖部分县市出现洪涝灾害,在一条反映某地干部群众奋起抗灾的报道中,记者在文稿中写的是当地灾情如何严重,干部群众是如何地奋起抗灾、自救家园。而画面却是几个当地领导干部在风平浪静的水库旁闲庭信步,指手划脚,至于最具真实表现力的洪水、灾情、当地群众流血流汗奋力抗灾等细节一个也没有,这样的片子其真实性就大大打了折扣,  相似文献   

The distance-time relationship over a century of running Olympic performances: A limit on the critical speed concept     

Dekerle J  Nesi X  Carter H 《Journal of sports sciences》2006,24(11):1213-1221

We analyse the evolution of the slope (critical speed) and the y-intercept (anaerobic distance capacity) of the linear distance-time relationship over a century of Olympic running performances. The distance-time relationship of each Olympic Games (1920-2004) was plotted using the performances in the 800-, 1500- and 5000-m track events. Values for critical speed and anaerobic distance capacity were determined by linear modelling. Mean performances for the 800, 1500 and 5000 m were 104.9 +/- 1.5 s (1.4%), 217.2 +/- 2.8 s (1.3%) and 808.9 +/- 18.4 s (2.3%), respectively. Critical speed improved during the first three-quarters of the twentieth century to reach a plateau in 1984. This is in accordance with the literature (Peronnet & Thibault, 1989) and suggests that "human aerobic endurance" has improved within the century (+13.4%) and tends to stabilize. Anaerobic distance capacity was highly variable over the century (coefficient of variation = 9.4%) and did not show a linear improvement over the years as has previously been suggested (Peronnet & Thibault, 1989). This could be due to an artefact in the application of the two-parameter model to only three Olympic performances. A limitation to the use of this linear mathematical model to fit physiological data may have been demonstrated.  相似文献