computer simulation[精].ppt

Unit Five Simulation and Aided Design Passage One Introduction to Computer Simulation Leading in-Revision Talk about sensor products. (choose two groups of students to do it) Leading in—guess the meaning The stronger the motivation, the more quickly a person will learn a foreign language. [ .m?utivei??n ] Air, food and water are indispensable to life. [ .indispens?bl ] We thought wed be able to get a house , but it was prohibitively expensive [ pr?hibitivli, pr?u- ]? He crashed his car (into a wall).? He gave his life as a sacrifice for his country. [ s?krifais ] A mother will sacrifice her life for her children. He slammed the door angrily. The permutation of x, y and z is xyz, xzy, yxz, yzx, zxy, zyx? [ .p?:mju(:)tei??n ] She tried to constrain herself from a cough in class. New words and expressions simulate [ simjuleit ] v. 假装,冒充,模仿,模拟I do not doubt that he is simulating enthusiasm.?我一点也不怀疑，他确实在装出一付热情的样子。(calculate) simulation [ .simjulei??n ]模拟,仿真Computer simulation ( of something) numerical [ nju(:)merik?l ] a. 数字的,用数字表示的 optimize [ ?ptimaiz ] v.优化,完美. logical[ ‘l?d?ik?l ] a. 符合逻辑的,逻辑上的logic: [ ’l?d?ik ] n. 逻辑(学),逻辑性 His thinking goes against all logic.他的思维完全不合逻辑. trigger[ trig? ]引发, 引起, 触发 Talk about computer( by Ss) Do you like computer? Why? Do you know that computers have long been used to create numerical and logical models or simulations of real-world systems? Do you know the motivation for developing the first computers? The first computers A large part of the motivation for developing the first computers in the 1930s and 1940s was to be able to perform calculations to simulate and analyze physical systems, such as electrical circuits and the flight of artillery shells. Since then, computer simulation has become an indispensable tool of scientists, engineers, economists, and other people who work with , and desire to understand, the behavior of complex systems. Why do you build and use computer simulation models? In many