unit 1 introdctionunit 1 introductionunit 1 introductionunit 1 introduction.ppt

Unit 1 Introduction 幻灯制作：吴岱曦 Index Pre-reading 1. 1 Text 1. 2 Reading materials 1. 3 Knowledge about translation 1. 4 Exercises 1. 5 课文参考译文 1. 6 阅读材料参考译文 Pre-reading Read the following passage, paying attention to the question. 1) Who invented the radio? 2) When was the real electronics started? Question 3) What courses should a student majoring in the electronics study? 4) What career will a student majoring in the electronic technology follow? 1. 1 Text 1.1.1 History About Electronics 1.1.2 Introduce to Some Courses 1.1.1 History About Electronics There can be no doubt that the 1900s is remembered as the electronic century. Of course there have been other great advances, in medicine, in transport, in science, in commerce, and many other fields, but where would they have been without the instruments and devices that electronics has provided? How would you see a 3D virtual reality image of your beating heart with no electronics? How would you get money out of the bank on a Sunday night without electronics? Would you go to a pop concert that had no amplifiers, large screens or lighting effects? Don’t say you would rather watch TV - there would not be any. Electronics in the early 20th century started thriving at a greater speed unlike the pre-20th century developments. The radio invented by the Italian genius Marconi and the work of Henry Hertz opened the road to further discoveries and inventions. In the first decade the new thing that was welcomed to the technical world was the vacuum tube. The vacuum tubes at that time worked as a miraculous component for the radio devices. The invention of the television was a miraculous thing for the mankind. It was revolution in both communication technology and also for the world media. The distances between the continents did not seem to be far enough. The credit goes to the British engineer John Logic Baird who followed the footprints of Marconi and tried to send the images in the same way as the speech. Aft