hello,everyone. today,I am on duty.I want to tell you something about inventions. We study everyday,.when we study at night,we need use light .everybody knows that the light was invented by Edison.but do you know when was it invented?It was invented in 1879.Edison invented light ,because he worked very hard .although he had failed,but he always work hard,at last,he succeed. we can learn that we should work hard in our life. another invention is computer ,we use it everyday.we use it look for some information, play and so on .it was invented in 1946, which is called ENIAC. ok.thats all. thanks.

扩展资料

大家好。 今天，我值班。我想告诉你一些有关发明的事情。 我们每天学习，晚上学习时，我们需要使用光。每个人都知道光是爱迪生发明的。但是你知道它是什么时候发明的吗？它是1879年发明的。爱迪生发明光是因为他非常努力 尽管他失败了，但他总是努力工作，最后他成功了。 我们可以知道我们应该在生活中努力工作。 另一项发明是计算机，我们每天都在使用它。我们用它来查找一些信息，玩游戏等等。它于1946年发明，称为ENIAC。 好的，仅此而已。 谢谢。