高中英语人教版必修二unit3Reading

1、Unit 3 Computers,Guessing game,Guess!,A toy?,A handbag?,Computers,keyboard,mouse,monitor,screen,speaker,host computer,What English words do you know about computers?,I am very old now. I was born in China. Many people used me for calculating in the past, but now I am a bit lonely because they dont l

2、ike me now. Do you know who I am?,abacus,Guess more:,I am very small. I can be used for calculating. In China, a lot of students use me when solving mathematical problems. Do you know who I am?,calculator,I can be used for calculating. Besides, I can also be used for watching DVD, sending e-mail and

3、 communicating through the Internet. However, I am not a PC, because Im small enough for you to take me with you.,notebook computer/ laptop,Do you know who I am?,A huge computer,PC,the history of the computer,PDA,calculator,abacus,laptop,Write out all the words you know about computers.,computer,mon

4、itor,click,software,search,update,download,Internet,keyboard,Who am I ?,Skimming: Go over the story to find out who the speaker is. Write down 3 sentences to support your idea., I was able to share my knowledge with others through the World Wide Web.,”My real father was Alan Turing .”, I was built a

5、s an Analytical Machine by Charles Babbage.”,Timeline,The computer began as a calculating machine,The computer grew rapidly both in size and in brainpower.,The computer had grown as large as a room.,1960s,Computers were used in offices and homes.,Computers connect people all over the world together.

6、,1642:_ 1822:The Analytical Machine was made by Charles Babbage. 1936:_ _ 1940s:_ _: The first family of computers was connected to each other. 1970s:_ Now:_ _,Scanning,Over time I have been changed quite a lot.,Calculating machine Analytical machine Universal machine PC laptop,These changes only be

7、came possible as my memory improved,Tubes Transistors Chips Network World wide web,Since the 1970s many new applications have been found for me.,Communications Finance Trade Robots Mobile phones Medical operations Space rockets Providing a life of high quality,calculating,analytical,cards with holes

8、,universal machine,memory,laptop,the early 1960s,share,network,ways,Task 5 QUESTION-ANSWER COMPETITION,What is PC? Speak the name on the whole.,It means: personal computer.,2. What is IT?,Information Technology.,3. What is PDA?,Personal digital assistant.,4. What is W.W.W?,World wide web.,5. 科学技术,Sc

9、ience and technology.,6. 人工智能,Artificial intelligence.,7.笔记本电脑,Notebook computer.,8. Who was the computers real father?,Alan Turing.,What are the advantages and disadvantages of the computers? In my opinion,I can use the computer to.,Discussion,We can use the computer to.,listen to music,Watch movie

10、s,search for ,communicate with,do shopping,Advantages We can use the compuers to 1. use a computer for school work 2. play games on the computer 3. send emails to friends 4. download music and films 5. go shopping on line 6. use QQ to make friends 7. communicate with others,8. use the Internet to se

11、arch for information 9. surf the web for fun 10. read news both at home and abroad, read books and magazines,Disadvantages Some students may get too addicted (沉溺于)to it . Some students waste too much time in playing computer games. Some students spend too much time in chatting with others and may be

12、 cheated (欺骗)by someone on line. As a result, they have little time to study It is bad for our eyes and health to spend long time in front of computers.,How useful computers are!,Internet,Computers have great power. They make our lives more colorful and more convenient. BUT Dont just use computers f

13、or fun. Dont spend too much time in playing computer games or chatting(聊天) online. We should learn more computer skills which are very useful in our future work.,Summary about the text. The computer _ a calculating machine in 1642, then in 1822, it was built as an_ by _. At the year of 1936, Alan Tu

14、ring _ to describe how computers _to work , and build a “universal machine” to solve_. With the development of _,began as,Analytical Machine,Charles Babbage,wrote a book,could be made,mathematical problem,information technology,in the 1960s, computers had new _and became_, then were connected to each other by _. As the years had _, computers were_,peoples homes. Now computers have become the most important _to _all over