人教新课标高一必修二英语课件：Unit 3 Computers Reading.ppt

1、Warming up &Reading I was born in China. I am made of wood or plastics. Many people used me for calculating in the past. But now I am a bit lonely because they dont like me any more. abacus I am very small and clever. I can work out difficult sums quickly. calculator I have a screen with pictures an

2、d sounds. Im made to work with my “artificial intelligence(人工智能人工智能)”. You can also get information all over the world from me. I was born as a result of the technological revolution(技术革命技术革命). computer (laptop) Im a machine that you use to talk to other people even in a far-away place. You can take

3、 me anywhere with you in your pocket. Im most liked by businessmen and officials. I can also work as a PC. New applications(用途用途) are being added to me every year. PDA Im a machine. I can do many things for people and even finish jobs that people are not able to. I was once sent to explore the moon

4、and Mars. I look like a human. robot 1. Complete change in ways of thinking 2. Connected computer system 3. to make things easier 4. to find the answer using numbers 5. able to be moved easily from place to place 6. to work out the answer to a problem 7. to travel around an area to find out about it

5、 8. completely 9. anyway 10. activity of managing money 1. What is the main idea of the whole passage? A. The early development of the computer. B. The late development of the computer. C. The importance of the computer. D. The history of the computer. 2. In what order is this passage arranged? 3. W

6、hat kind of figure of speech is used? SkimmingSkimming 1642 The Analytical Machine was made by Charles Babbage. 1936 1940s The first family of computers was connected to each other. 1970s now Timeline The computer began as a calculating machine 1822 Alan Turing wrote a book to describe how computers

7、 could be made to work Computers had grown as large as a room. 1960s Computers were used in offices and homes Computers connect people all over the world together. Scanning: Para 1 Para 2 Para 3 Topic sentence Supporting details . . . tubes . . communications finance . Read the passage carefully and

8、 find the topic sentence of each paragraph and the supporting details. Careful readingCareful reading calculating machine analytical machine universal machine PC( desktop) Para 1: Over time I have been changed quite a lot. Simplify difficult sums. Think logically and produce an answer quicker than a

9、ny person. Solve any difficult mathematical problem. Used in offices and homes. laptop Para 2: These changes only became possible as my memory improved. tubes transistors chips network World Wide Web Para 3: Since the 1970s many new applications have been found for me. communication finance trade ro

10、bots mobile phones medical operations space rockets providing a life of high quality Thinking? Can you predict the future computer? Why does the author write the passage by the first person?( What are the advantages of writing by the first person?) Post-reading Comparing How did we do the same things before we had computers? Things we do by using computers now We used to 1. 2. 3. . We used to but now we by computer. Homework: 1. Summarise the passage within 80 words. 2. Finish E1,2,3 on P20.