Unit 3 Computers Who Am I?

Learning aims: 1.To comprehend the text and improve the ability of reading comprehension. 2. Know about the history and development of the computer. 3. To learn to catch the detailed information by self-directed study and cooperation. 4.To enjoy the pleasure of reading.

Revision: word spelling. 1.The ball missed the g ___ by a few inches. It was really a pity. 2. He equals her in strength but not in i________. 3. Because of modern t __________, we have a much higher living standard. 4. Our teacher c ________ the average mark of our class. It was 96.7. 5. We receive hundreds of job a _________ each year. oal ntelligence echnology alculated pplications

universal logical revolution Personally totally 6. He designed a ____________(通用的) machine which worked well. 7. Computer programming needs someone with a _________(合逻辑的) mind. 8. The role of women has changed since the ___________ (革命). 9. ___________(就我个人而言), I prefer the yellow one. 10. They come from ________(完全) different cultures. logical revolution Personally totally

Lead-in guessing game The technology develops so quickly that many new things appear in human being’s life. Let’s guess what they are: I think it’s … In my opinion, … I guess…

washing machine Riddles(谜语): 1. I am a machine which is a good helper in doing house work. I wash clothes for people. Who Am I? washing machine

2. A machine that you use to talk to other people even in a far-away place. We are connected by wire or radio. Now each of us often has a number. Who Am I? telephone

3. With this you can watch different programmes just at home 3. With this you can watch different programmes just at home. I’m a machine that has a screen with moving pictures and sounds. But watching me too much is bad for your eyes. Who Am I? TV set

car 4. I am a machine which moves very fast on four wheels(轮子). You need a license and must be very careful when you drive me. Rolls Royce, Benz and BMW are some famous kinds of me. Who Am I? car

5. I am a machine , and usually appear in the size of square or cuboid(长方体). With me you can keep your food, fruit, vegetable and drinks cool. Who Am I? fridge

who am I

Fast reading 1. What is the main idea of the passage？ 2. In what orders is Reading arranged? (within 5 words)

In time order What is the main idea of the passage ? The______ and __________of computers. history development 2. In what orders is Reading arranged? (within 5 words) In time order

Detailed reading:Timeline The computer began as a calculating machine. 1642: ___________________________________ ____: The Analytical Machine was made by Charles Babbage. 1936: ___________________________________ 1940s:__________________________________ ____: The first family of computers was connected to each other. 1970s: ___________________________________ Now: ____________________________________ 1822 Alan Turing wrote a book to describe how computer could be made. 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.

chips network Tubes communication finance para1 para2 Topic sentence Support-ing details ※ Tubes communication finance Over time I have been changed quite a lot These changes … my memory improved Since the 1970s… have been found for me. Calculating machine transistors trade Analytical machine chips robots network mobile phones Universal machine Medical operations Word Wide Web Space rockets P C Providing a life of high quality laptop

True or false. 1.Although I was programmed by an operator who used cards with holes, I could not “think” logically. 2. First as a laptop and then as a PC, I have been used in offices and homes since the 1970s. after F laptop PC F

3. The computer’s memory was first stored on transistors, then in tubes and later on very small chips. 4. Since the 1970s many new applications have been found for the computer. 5. The use of the computer is to provide humans with a life of high quality. tubes transistors F T T

Summary: I was born in_____in France. In____, I was built as an__________________,following instructions from cards with holes. In_____, my real father, Alan Turing, described how computers could be made to work in a book and solved any mathematic problem by_________ a ________machine. People were surprised at my artificial____________ . At first, I was the size of a large room. As times has gone by, I have been made smaller and smaller. In the______, I got new transistors. My memory became______ and_______, but I got ________ and________, quicker and quicker. 1642 1822 Analytical Machine 1936 building universal intelligence 1960s larger cleverer larger cleverer

I could share information with others and talk to each other by a net I could share information with others and talk to each other by a net. It was in the______ that my family and I have been used by billions of people. I am happy that I have truly been built to serve _______ _____since my birth.   1970s human race

1.和… 有/无 共同之处 2 .经过一段时间 3.计算机器 3.简化加法 4.分析机 5打孔卡 6.技术革命 7.人工智能 8.通用机器 have …… in common over time calculating machine simplify sums analytical machine cards with holes technological revolution artificial intelligence universal machine from then on 9.从那以后 10.到20世纪40年代 by the 1940s

11.随着时间的推移 12. 结果 13. 如此..以至于… 14. 由网络连接的家庭 15.和…分享 16.也，以及 17.给某人提供某物 18.充满 19.真诚的朋友和助手 20 人类 as time goes by as a result so ……that…… a family connected by net work share sth with sb as well as provide sb with sth be filled with a devoted friend and helper human race

每年一次 once a year 2.被允许做某事 be allowed to do 3. 集合，聚集在一起 get together 4.事实上 in fact 5.给… 发信号 signal 6.获得第一(二)名 win the first prize 7.一种新型的 a new type of 8.决心做某事 be determined to do 9. 在某种程度上 in a way 10.一种新情况出现了 a new situation arises 11.用这种方法in this way

12.组织新动作 make up new moves 13.毕竟 after all 14. 在…帮助下with the help of 15.电子脑 electronic brain (p24.My android)) 1. 拖地 mop the floor 2.处理，对付deal with 3.看守，监视watch over 4.照看look after 5.帮助某人某事help sb with sth

6.犯错误 make mistakes 7.要是那样的话 in that way 8.毁掉我的自由时间 spoil my time (p24.Learning tip) 1.充分利用 make full use of 2.而且 what’s more

Discussion What are the advantages and disadvantages of computers?

With the development of IT technology, more and more families have computers in their homes. Whether this is good or bad, people's opinions t are different.     People who are for it say that with computers in home we can easily find more useful information and we can make more friends because of QQ and MSN and so on. However, People against it insist that children may spend more time in playing computer games. There is no doubt that this will do great harm to their study.     To my mind, I think if we use computers in reasonable ways, it will bring us more advantages than disadvantages.

With the development of IT technology, more and more families have computers in their homes. Whether this is good or bad, people's opinions are different. Those who welcome the Internet hold that it brings us great convenience and efficiency. Firstly, we can send e-mails to our friends in other countries in a few minutes while sending a traditional letter takes us at least a week and costs much. Secondly, we can make friends with people from all parts of the world. It overcomes the geographical barriers and makes the world smaller. While people speak highly of the Internet, its drawbacks should not be neglected. For one thing, it leads to psychological problems. An Internet-addicted person tends to be isolated, self-centered and unsociable. For another, there is a sharp rise in the number of cyber crime. More and more financial crimes are committed via the Internet.  In my opinion, I think if we use computers in reasonable ways, it will bring us more advantages than disadvantages.

Homework Prepare for learning about language Try to retell the text by using your own words Finish learning about language on P19