介绍莱特兄弟发明的英文作文80字
答案:2 mip版
解决时间 2021-01-08 21:37
- 提问者网友：非莪莫属
- 2021-01-08 05:51
介绍莱特兄弟发明的英文作文80字
最佳答案
- 二级知识专家网友：瑾色如弦
- 2021-01-08 06:22
Men always wanted to fly.For hundreds of years they watched birds and wished that they could fly,too.
At first they made wings like birds'.Then they jumped off high buildings ang tried to fly,but they all failed.They crashed to the groung.Then two brothers tried another way.They built a balloon.It was made of thin cloth and paper.They lit a fire beneath it.It went up into the air and reached a height of 1,800 meters.
A few months later the brothers sent up another balloon with a sheep,a duck and hen in a basket under it.The balloon traveled to a place two and a half kilometers away.In October 1783 aman went up with a balloon,but it didn't rise very high.A month later two men went up in a balloon full of hot air.The balloon rose to a height of900 meters and traveled for 9 kilometers.Then it came gently back to the groung.Men had traveled though the air fo
At first they made wings like birds'.Then they jumped off high buildings ang tried to fly,but they all failed.They crashed to the groung.Then two brothers tried another way.They built a balloon.It was made of thin cloth and paper.They lit a fire beneath it.It went up into the air and reached a height of 1,800 meters.
A few months later the brothers sent up another balloon with a sheep,a duck and hen in a basket under it.The balloon traveled to a place two and a half kilometers away.In October 1783 aman went up with a balloon,but it didn't rise very high.A month later two men went up in a balloon full of hot air.The balloon rose to a height of900 meters and traveled for 9 kilometers.Then it came gently back to the groung.Men had traveled though the air fo
全部回答
- 1楼网友：劳资喜欢你
- 2021-01-08 07:24
《发明飞机的莱特兄弟》
人类很早就开始梦想能像鸟一样在天空中飞翔，是飞机帮助人类圆了飞翔的梦，而且比鸟飞得都高、都快、都远。
从1900年开始，莱特兄弟在两年的时间里是制了翼端卷曲、装有流动方向舵的滑翔机，先后进行了三次滑翔实验，测量了风向和气流，记录了数据，揭开了包括空中急转、倾斜滑行和拐弯等一个个飞行奥秘，并一再改进了机翼和方向舵的形状结构。
1903年12月17日凌晨，莱特兄弟试飞了第四次，在第一次试飞中，飞机在两三米高的空中飞行了37米，时速48千米，时间12秒，最好的一次持续了59秒，前进了260米。然而这次飞行成了里程碑，标志着人类成功实现了持续的、有动力的、可操作的飞行。人类追求翱翔蓝天的梦想变成现实。
我要好好学习，学好真本领，并且学习莱特兄弟善于观察不怕困难的顽强精神。长大后当一名发明家，为人类做出一些贡献。
我要举报
如以上问答内容为低俗/色情/暴力/不良/侵权的信息，可以点下面链接进行举报，我们会做出相应处理，感谢你的支持！
点此我要举报以上问答信息
推荐资讯