小故事演讲稿三分钟小学生
数学家欧拉的故事演讲稿?
数学家欧拉的故事演讲稿?
欧拉是最伟大的数学家之一,分析、代数、几何都是欧拉伟大的贡献。欧拉还是最多产的数学家之一,共写下了886本书籍和论文。
欧拉出生在一个牧师家庭。很小的时候,就利用“周长相等四边形正方形面积最大”帮助他的父亲改造羊圈。让老爹见识了欧拉的数学天赋。
爸爸的羊群渐渐增多了,达到了100只。原来的羊圈有点小了,爸爸决定建造一个新的羊圈。
他用尺量出了一块长方形的土地,长40米,宽15米,他一算,面积正好是600平方米,平均每一头羊占地6平方米。
他发现他的材料只够围100米的篱笆。若要围成长40米,宽15米的羊圈,其周长将是110米(15 15 40 40110)父亲感到很为难。
小欧拉却向父亲说,不用缩小羊圈,他有办法。父亲不相信小欧拉会有办法。心想:
关于狼故事演讲稿三分钟?
狼,拼搏、残暴、团结、爱好自由。狼群,狠狠地盯住一个目标,锲而不舍、用心专一、不达目的,则不罢休。狼性,就是一种团队精神,一种创新精神和顽强的拼搏精神,是一种在有限环境和资源条件下求生存和求发展的手段,是一种主动奉行自然界优胜劣汰规则,优化集体的危机意识!
多一点狼性,就是指将狼拼搏、团结、残暴、爱好自由的特制变通为一种拚博的力量来运用。
说到狼,必须提到的一本书就是《狼图腾》了。初中,在语文老师的推荐下,我看完了这本神一般的小说。对书中狼的生活和精神,包括对人的影响都很感兴趣。再仔细思考后,我认为我们现代的社会缺少了一种狼特有的品质。那就是狼性。
三年级英语小故事演讲稿?
The Thirsty Pigeon口渴的鸽子 A PIGEON, oppressed by excessive thirst, saw a goblet of water painted on a signboard. Not supposing it to be only a picture, she flew towards it with a loud whir and unwittingly dashed against the signboard, jarring herself terribly. Having broken her wings by the blow, she fell to the ground, and was caught by one of the bystanders. Zeal should not outrun discretion. 有只鸽子口渴得很难受,看见画板上画着一个水瓶,以为是真的。他立刻呼呼地猛飞过 去,不料一头碰撞在画板上,折断了翅膀,摔在地上,被人轻易地捉住了。 这是说,有些人想急于得到所需的东西,一时冲动,草率从事,就会身遭不幸。 风和太阳(The Wind And The Sun) One day the wind said to the sun, “Look at that man walking along the road. I can get his cloak off more quickly than you can.” “We will see about that,” said the sun. “I will let you try first.” So the wind tried to make the man take off his cloak. He blew and blew, but the man only pulled his cloak more closely around himself. “I give up,” said the wind at last. “I cannot get his cloak off.” Then the sun tried. He shone as hard as he could. The man soon became hot and took off his cloak. (有一天风跟太阳说: “看看那个沿着路上走的人.我可以比你快让他把披风脱下来.) (“我们等着看吧,”太阳说, “我让你先试.) (因此风尝试让那个人把披风脱下来.他用力地吹,可是那个人把披风拉得更紧.) (“我放弃了,”风最后说, “我无法让他把披风脱下来.”然后由太阳试试看.他尽可能地晒他.不久,那个人很热就把披风脱下来了.) Little Robert Little Robert asked his mother for two cents.