巧导·妙评·细赏——初中写作教学三步法

写作教学是语文教学的重要组成部分,其意义在于培养学生灵活应用语言文字表达的综合能力。在初中写作教学中,笔者认为可运用三步法：一是巧导,点燃写作的热情;二是妙评,挖掘写作的潜能;三是细赏,积累写作素材,从而让学生逐步体验写作的喜悦,不断享受写作的乐趣,充分发挥写作的潜能。

浅论赏乐

文章把音乐艺术与其它艺术相结合。

静精境——浅析音乐欣赏教学中的三部曲

音乐欣赏是高中音乐鉴赏教学中不可或缺的一个过程,是一次为时不短的音乐之旅。为了更好的开展音乐欣赏教学,我采用静、精、境的三部曲融入音乐欣赏中,通过静心聆听——精赏细品——境界升华的递进方式,时间留白、多样化推动等方法,学生能有效聆听,用心感受音乐赋予的美的体验,养成良好的聆听习惯,重点解读来提高学生的音乐感知力、鉴赏力和审美力,情境深化来丰富学生的音乐情感和音乐素养。

Polyploidy Induction of Pteroceltis tatarinowii Maxim.

[Objective] This study was conducted to obtain tetraploid Pteroceltis tatar# nowii Maxim. with excellent ornamental traits. [Method] The stem apex growing points of Pteroceltis tatarinowii Maxim. were treated with different concentrations of colchicine solution for different hours to figure out a proper method and obtain poly- ploids. [Result] The most effective induction was obtained by treatment with 0.6%- 0.8% colchicine for 72 h with 34.2% mutation rate. Flow cytometry and chromosome observation of the stem apex growing point of P. tatarinowii Maxim. proved that the tetraploid plants were successfully obtained with chromosome number 2n=4x=36. [Conclusion] The result not only fills the blank of polyploid breeding of P. tatarinowii, but also provides an effective way to broaden the methods of cultivation of fast- growing, high-quality, disease-resilience, new varieties of Pteroceltis.

瀑流无弦万古琴

此石形、质、色、纹、韵、意绝对一流。远观之,形态非凡、气势恢宏,绝壁沟壑大气磅礴;细赏之,肌理褶皱、细腻通达,峰回水转暗藏玄机。整件作品:万壑竞流、银帘高挂,雄壁百丈、飞瀑争喧。令人壮怀激越、心潮澎湃.赋七绝三首咏之。(一)绝壁沟壑满苍苔,飞瀑隆隆天上来。百丈银帘盈紫气,千秋万代鸿运祥。(二)飞流百丈瀑泻金,谷吼山鸣万景开。