unit3Computers-Reading公开课.ppt

Guess! A toy?A handbag? 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 like me now. Do you know who I am?Do you know who I am?abacusGuess 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?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 communicating through the Internet. However, I am not a PC, because Im small enough for you to take me with you.notebook computer/laptopDo you know who I am?Do you know who I am?What do you know about computers?shapespartssizescolorskindsdrivesmonitorkeyboardmain unitmousespeakersDo you know them?CD-ROMswork for us in Mars(火星火星)Whats next?carry thingswork in wars (战斗战斗)仿真机器人entertainment 娱乐娱乐What do you think will be the next development?ReadingReading 1.In the passage, “I” refers to _.2.the topic sentence of each paragraph. Paragraph I: paragraphII: paragraphIII:So the whole passage is mainly about:_.I.Scanning(I.Scanning(略读略读) ) a computer 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 for me.Fast-reading the development of computers. Read the passage and choose the best answers.1.What can we learn from the text?A Computer has a short history.B No one knows computer when the first computer was made.C Computers are not widely used even today. D Computers are widely used.2. Who was the computers real father?A Alan Turning B Not mentioned in the text. C Bill Gates D Charles Babbage3 .The computer almost changed completely _.A in 1642 B in 1882 C in the 1960s D in the 1970sDAC 1642 19361940s 1970s nowThe computer _ _ _ _ machine1822Alan Turing _ _ _ _ _ how computers could be made to workComputers had _ _ _ _ a room.1960sFirst as _ _and then _ _ _ computers were used in offices and homes. Computers connect people all over the world together. A family of computers was connected by a network. The _ machine was made by Charles Babbage.began as a calculating analyticalwrote a book to describegrown as large asa PC as a laptop early days(the first paragraph) poor_ Name Function(功能功能)a caculating machine simplify difficult sumsa _ machine think logicallya2. _ machine solve difficult3. _ network times (the 2nd and 3rd para) large my memory tubes_4._Small chipssince the 1970s5_have been found in many fields(领领域域).6._; finance;7. _; robots; mobile phones; 8._; space rockets narrow_analyticaluniversalmathematical problemstransistorscommunicationtradeapplicationsmedical operationsstrongsmallwideWhat are the advantages and disadvantages of the computers?In my opinion,I can use the computerto.DiscussionWe can use the computer to.We can use the computer to. listen to musicWatch moviessearch for communicate withdo shopping AdvantagesWe can use the compuers to1. use a computer for school work2. play games on the computer3. send emails to friends4. download music and films5. go shopping on line6. use QQ to make friends7. communicate with others 8. use the Internet to search for information9. surf the web for fun 10. read news both at home and abroad, read books and magazines Disadvantages Some students may get too addicted (沉沉溺于溺于)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 cheated (欺骗欺骗)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.Homework: Read the passage fluently.2. Do Ex on period 2.3. Retell the passage .http:/www.99dyw.co/ 九九电影网九九电影网 http:/www.99dyw.tv/ 九九电影网九九电影网 http:/http:/九九电影网九九电影网 天堂网天堂网2014 天堂网天堂网 天堂网天堂网 天堂网天堂网 天堂网天堂网 天堂网天堂网 天堂网天堂网 天堂网天堂网 天堂网天堂网 天堂网天堂网 天堂网天堂网 天堂网天堂网2014www.avttt2015.info 天堂网天堂网2014www.avttv2017.info 天堂网天堂网2014www.avttv2017.org 天堂网天堂网 天堂网天堂网 天堂网天堂网2014www.avttv2018.org 天堂网天堂网 天堂网天堂网 天堂网天堂网 天堂网天堂网2014http:/