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大自然的启示作文700字题目素材

Nature's apocalyptic composition

来源: 作者-yxd4906787 日期:2019-09-10 14:19:49 分类:六年级作文 阅读:

大自然就像是我们的老师,告诉了我们许多启示:比如科学家通过观察鸟儿,FM了飞机,使人类数千年来的飞行梦终于实现;通过观察青蛙,FM了电子蛙眼,使飞机降落时更安全;又跟据鱼儿的沉浮FM了潜水艇,让人们看到了前所未有的奇妙的海底世界

大自然同时也给了我们壹些启示,还有哪些地方是需要改正的。比如,通过观察蜻蜓翅膀,改良了飞机的机翼,使飞行途中更加平稳;通过观察鲸鱼身形中的“流线型”身材,改变了轮船的形状,使行驶速度大大提高;通过观察鲨鱼粗糙的表皮,改良了泳衣的舒适度,使穿着者速度提高...在其中我认为呢,好难的就是观察抹香鲸。抹香鲸又称之为巨抹香鲸、卡切拉特鲸。属于齿鲸亚目、抹香鲸科,是世界上好大的齿鲸。由于其头部特别巨大,故又有“巨头鲸”之称呼,主要栖息于南北纬70°之间的海域中。抹香鲸是壹钟非常谨慎的动物,通常它们其中的壹只雌鲸,身边会跟着壹群大小不壹的抹香鲸。但现在,因为我们人类的滥捕滥杀,抹香鲸已经处在灭绝与生存的分界线上了。现在能见到壹只抹香鲸就已经很好了,更别说测量它们的壹系列资料了。但,命运就是这么造化弄人。在壹次涨潮的时候,有壹只抹香鲸被冲上了岸。科学家们听到这个消息之后,立刻赶去沙滩。就在村民准备杀死它的时候,科学家们及时赶到,劝解他们,并给抹香鲸保湿,测量资料。但好后,尽管人们十分努力,但这条抹香鲸还是在2012年3月17日抢救无效死亡。现在,边防部门正在对死亡鲸鱼进行24小时看护,希望不要再有其他鲸鱼再死去。现在的21世纪是个科学技术十分发达的时代,但,我们也不能完全信赖科技。如果失败了,不要灰心,试试这句格言吧:我们必须接受失败,因为它是有限的;但万万不能失去希望,因为它是无限的死去。

六年#:刘颖昕

Nature is like our teacher, telling us a lot of revelations: for example, scientists have invented the aircraft by observing the birds, and finally realized the dream of flying for thousands of years. Invented the electronic frog eye by observing the frog. It made the plane safer when it landed; and invented the submarine according to the ups and downs of the fish, so that people can see the wonderful underwater world like never before.

Nature also gave us some inspiration, and what else needs to be corrected. For example, by observing the wings, the wing of the aircraft was improved to make it more stable during the flight; by observing the "streamlined" figure in the figure of the whale, the shape of the ship was changed, and the speed was greatly improved; by observing the rough skin of the shark Improves the comfort of the swimsuit and increases the wearer's speed... In which I think, the hardest thing is to observe the sperm whale. Sperm whales are also known as giant sperm whales and katcher whales. It belongs to the toothed whale, the sperm whale, and is the largest toothed whale in the world. Because of its huge size, it has the name of "the giant whale", which mainly inhabits the sea between 70° north and south. Sperm whales are very cautious animals, usually one of them is followed by a group of sperm whales of different sizes. But now, because of the indiscriminate killing of humans, sperm whales are already on the dividing line between extinction and survival. It is good to see a sperm whale now, let alone measure a series of information. However, fate is such a make-up. At a high tide, a sperm whale was washed ashore. After hearing the news, the scientists immediately rushed to the beach. Just as the villagers were preparing to kill it, the scientists arrived in time to persuade them and moisturize the sperm whales to measure the data. But in the end, despite the hard work, this sperm whale died on March 17, 2012. Now, the border defense department is conducting 24-hour care for the dead whales, hoping that no other whales will die anymore. The 21st century is an era in which science and technology are very developed, but we cannot rely entirely on technology. If it fails, don't be discouraged. Try this maxim: We must accept failure because it is limited; but never lose hope because it is infinitely dead.

6th grade: Liu Yingwei

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