the sun rises in the east and sets in the west, which is caused by the rotation of the earth as you all know. but have you ever thought of the effect of the earths rotation on man and can you imagine what would happen if the earth stopped rotating?
the radius of the earth is about 6,370 kilometres. it takes the earth 24 hours to rotate once. objects on the earths equator move with the earth at a speed of 460 metres per second, and the air close to the earths surface turns at the same speed. if the earth stopped rotating suddenly, the air would keep flowing eastward at a speed of 460 metres per second. the wind would be fourteen times as powerful as a hurricane. at the same time sea water would rush eastward at a speed of several hundred metres per second, which might do damages much greater than a seaquake would do. obviously, men could hardly stand such a catastrophe.
even if such a catastrophe would not happen, there would be a great temperature difference on the two hemispheres of the earth, and the four seasons of the year would no longer occur because a day and a night would be as long as a whole year instead of 24 hours. all this would greatly affect the life of human beings, imals and plants and that would cause worse results than anything imaginable.
寒假里,我读了沈石溪写的《红飘带狮王》这本书,心里久久不能平静。
《红飘带狮王》讲得是在一个叫做帕蒂鲁的狮群里,巨鬣雄狮和它的助手辫子雄狮打败了老狮王,成为了新一代的狮王,可是巨鬣狮王却和辫子雄狮将幼崽全部***害。蜂腰雌狮愤怒无比,离开了狮群,自己创立一个狮群。在这时,她遇到了流浪雄狮红飘带。它们经历了重重困难后,红飘带成功地当上了帕蒂鲁狮群的狮王,红飘带带领助手无鬣雄狮一起接管了帕蒂鲁狮群,可它也将幼崽全部屠***。最后,蜂腰雌狮离开了这片让它伤心的土地。
读完这本书,我很佩服蜂腰雌狮这种坚持不懈、永不放弃的精神。当蜂腰雌狮的幼崽被***害的时候,当红飘带被打败丧失信心的时候,蜂腰雌狮忍住悲伤,千方百计地想要重振红飘带,最终,蜂腰雌狮成功地扫除了红飘带心中的阴影,创造了一个狮群不小的奇迹。可以说,从刚建立狮群到当上狮王这段时间里,蜂腰雌狮是遇到了很多困难,受到了许多挫折,可它从来没有放弃,最终将巨鬣雄狮和辫子雄狮赶下狮王宝座,让红飘带成为了狮王,报了当年的***崽之仇。
这时,我不禁想起了林肯。在他一生经历的十一次较大事件中,只成功了两次。可最后他却成功当选美国总统。为什么呢?因为林肯持之以恒,没有轻言放弃。
荀子云:“锲而不舍,金石可缕;锲而舍之,朽木不折。”这句说明了学习的关键在于目标专一,持之以恒。如果一个人想要成功的话,必须持之以恒、坚持不懈,不能半途而废轻言放弃。有时候,失败离成功只有一步之遥。只要你坚持,就会成功。
朋友,《红飘带狮王》这本书给了我很大的启示,你读过这本书吗?
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