求一篇关于科学家的故事的英语演讲稿,3到5分钟即可,谢谢!

the Wright Brothers
For thousands of years,men couldn’t fly like birds in the sky.But the Wright brothers were men of perseverance.they showed GREat enthusiasm in their new idea.they did what others couldn’t do.Although they were not educated men,they had never given up their dream.People all over the world were excited with joy at their success.In fact,before the first plane rose into the sky,they had failed many times.their perseverance is the best model to all of us.莱特兄弟