unit3-computers课件

1、Unit 3 Computers,1,unit3-computers,Look at the following pictures and tell their English names,abacus,calculator,2,unit3-computers,huge computer,PC personal computer,3,unit3-computers,laptop,PDA Personal Digital Assistant,4,unit3-computers,robot,5,unit3-computers,Can you tell the development of comp

2、uters,abacus,calculator,huge computer,PC,laptop,PDA,robot,6,unit3-computers,Do you know in what ways computers are used today,7,unit3-computers,search for information,watch movies,8,unit3-computers,listen to music,read books and magazines,9,unit3-computers,buy things online,play games on the compute

3、r,10,unit3-computers,Reading,Who am I,11,unit3-computers,analytical adj 分析的 calcucate vt 计算 sum n 总数，算术题 operator n 操作员 simplify vt 简化 logical adj 合逻辑的 revolution n 革命 artificial adj人造的 intelligence n 智力 tube n 管子，电子管 transistor n 晶体管 chip n 碎片，芯片 network n 网络 application n 应用finance n 金融 rocket n 火

4、箭 explore vt/vi 探索 Mars n 火星,12,unit3-computers,Para I,Para II,Para III,Who am I,Over time I have been changed quite a lot,These changes only became possible as my memory improved,Since the 1970s many new applications have been found out for me,Skim the passage and find out the topic sentence in eac

5、h paragraph,13,unit3-computers,Do you know the main idea of this passage,A. The development of computers. B. A machine which is simple-minded. C. The development and the applications of computers. D. Computers may replace human beings,14,unit3-computers,Over time I have been changed quite a lot,Thes

6、e changes only became possible as my memory improved,Since the 1970s many new applications have been found for me,Complete the chart below,15,unit3-computers,Calculating machine Analytical machine Universal machine Personal computer laptop,Tubes Transistors Chips Network World Wide Web,Communication

7、s Finance Trade Robots Mobile phones Medical operations Space rockets Providing a life of high quality,16,unit3-computers,Read para 1 and fill in the chart,Careful reading,calculating,Simplify,1842,logically,universal,Reality,Since the 1970s,Used in offices and homes,17,unit3-computers,My shape didn

8、t change even though my memory improved. The older I am, the larger I have become. Over time I have large memory so that I will not forget anything I have been told. I was able to share my knowledge with others through the World Wide Web in the early 1960s,F,F,T,T,The information was stored in tubes

9、, then on transistors and later on the chips,As I have grown older I have also grown smaller,Read para 2 and then tell the statement true or false,18,unit3-computers,1,2,What roles do computers play in the life of human beings,What are the new applications of the computer,Read Para 3 and then answer

10、 the following questions,unit3-computers,What are the new applications of the computer,communication,trade,medical operation,space rockets,robots,mobile phones,finance,unit3-computers,What roles do computers play in the life of human beings,They provide humans with a life of high quality,They are de

11、voted friends and helpers of the human race,unit3-computers,I began as a _ _ in 1642 in France. In 1842 I was built as an _ _. Then in 1936 Alan Turing wrote a book and built a _ _. As time_ _, I was made _ but my memory got _ and _. In the 1960s they gave me a family connected by_ _. Now people cal

12、l it the Internet. I was used in _ and _ in the 1970s. Since my birth I have truly been built to serve the human race,calculating machine,analytical machine,universal machine,went by,smaller,larger,larger,a network,offices,homes,Retell the passage,unit3-computers,Conclusion There is no doubt that the computer has two sides ,too. If we make good use of it, it will make our lives more colorful and convenient. But dont lose yourself in playing computers. Just remember: Keep fit and study hard,unit3-computers,Homework Write a short passage about the development