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“有滋有味”学汉字——浅谈小学语文第一学段识字教学的策略
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作者 李颖玲 《读与写(中旬)》 2022年第9期82-84,共3页
识字教学是小学语文教学中的基础内容,是不可或缺的。但是识字教学容易陷入教学效率低的境地,表现为老师投入了大量的时间进行教学,可学生对字词的掌握却不甚理想。如何提高识字教学的效率,走出低效的窘境?笔者结合教学实践中的案例,探... 识字教学是小学语文教学中的基础内容,是不可或缺的。但是识字教学容易陷入教学效率低的境地,表现为老师投入了大量的时间进行教学,可学生对字词的掌握却不甚理想。如何提高识字教学的效率,走出低效的窘境?笔者结合教学实践中的案例,探讨在第一学段的识字教学中以巧析字理、结合阅读、立足语境、拓展延伸、落实书写等为策略,让课堂充满“五味”,促进学生乐于识字,提高教学实效,滋养学生语文素养。 展开更多
关键词 文化 童趣 语文 生活 底味
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浅谈浓香型曲酒异味的成因及预防
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作者 封明振 张国杰 王贤 《酿酒科技》 2000年第3期39-39,41,共2页
介绍了浓香型曲酒的糠杂味、底锅水味、霉味、臭味、油味、黄水味、酯化液味生成的原因及预防措施。
关键词 浓香型曲酒 成因 控制 糠杂 锅水
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Male and female meadow voles Microtus pennsylvanicus respond differently to scent marks from the top- middle-, and bottom-scent donors of an over-mark
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作者 Michael H. FERKIN Nicholas J. HOBBS Benjamin D. FERKIN Adam C.FERKIN Daniel A. FERKIN 《Current Zoology》 SCIE CAS CSCD 北大核心 2011年第4期441-448,共8页
Previous studies have shown that individuals responded preferentially to the mark of the top-scent donor relative to that of the bottom-scent donor of an over-mark. However, terrestrial mammals are likely to encounter... Previous studies have shown that individuals responded preferentially to the mark of the top-scent donor relative to that of the bottom-scent donor of an over-mark. However, terrestrial mammals are likely to encounter over-marks consisting of the scent marks of more than two same-sex conspecifics in the intersections of runways, near the nests of sexually receptive female conspecifics, and inside and along the borders of the territories of conspecifics. We determined how meadow voles, Microtus pennsylvanicus, respond to the marks of the top-, middle-, and bottom-scent donors of an over-mark. We tested the hypothesis that voles exposed to an over-mark will respond preferentially to the scent marks that were deposited more recently, the scent marks that were on top or near the top of the over-mark, compared to the scent marks that were deposited earlier or near the bot- tom of the over-mark. Voles spent more time investigating the mark of the top-scent donor than that of the either the middle- or bottom-scent donor. However, males but not female voles spent more time investigating the middle-scent mark than the bot- tom-scent mark. We also tested the hypothesis that voles evaluate and respond to over-marks differently from single scent marks. Voles spent more time investigating the marks of the top-, middle-, and bottom-scent donors compared to scent marks that were not part of the over-mark. Voles can distinguish among the overlapping scent marks of three scent donors and sex differences exist in the values they appear to attach to each of these scent marks [Current Zoology 57 (4): 441-448, 2011 ]. 展开更多
关键词 Over-marks VOLES Scent marks Olfactory communication
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