who-am-I-(Reading).ppt

1、,Unit 3 Computers,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

2、. With this you can watch different programmes just at home. Im 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,4. I am a machine which moves very fast on four wheels. You need a license and must be very careful when you dr

3、ive me. Rolls Royce, Benz and BMW are some famous kinds of me. Who am I?,car,I am a machine, which you can use to type your homework, draw pictures, play games, watch movies, listen to music, communicate with your friends, gather information who am I,What can computers do?,type homework draw picture

4、s play games communicate with friends. gather related information for lessons do shopping listen to music watch movies.,Computers can be used to.,Abacus 算盘,It can be used to calculate.,An abacus is an old calculating machine used in China until now.,Calculator 计算器,PC personal computer,A PC is a pers

5、onal computer which can solve all kinds of problems and is used widely now.,Notebook computer,laptop,What do they have in common?,1.They can be used for calculating. 2.They can deal with maths problems. 3.They are our friends. 4.They are useful and helpful.,reading,This is a short _ of the _ of comp

6、uters.,The main idea of the passage:,history,development,Who is the speaker in the story?,In what kind of order is the passage organized?,Time order,WHO AM I ?,Reading,Timeline,1642:_ 1822:_ 1936:_ 1940s:_ _: The first family of computers was connected to each other. 1970s:_ Now:_,The computer began

7、 as a calculating machine,Alan Turing built a universal machine.,The computer grew as large as a room.,1960s,Computers were used in offices and homes.,Computers connect people all over the world together.,The computer was built as an analytical machine,Find the topic sentence of each paragraph. Para

8、1: Over time I have been changed quite a lot.,calculating,analytical,universal,mathematical problems,Simplify difficult sums,Think logically and produce an answer quickly,As time went by, I was made smaller. First as a _ and then a _I have been used in offices and homes since the 1970s.,Para2: These

9、 changes only became possible as my memory improved. Para3: Since the 1970s many new applications have been found for me.,Medical operations,Memory,Transistors,Applications,Communication,Trade,I was born in_in France. In_, I was built as an_,and I could “think” logically. In_, my real father, Alan T

10、uring, described how computers could be made to work in a book and solve any mathematical problem by building a _machine. People were surprised at my artificial_ . At first, I was the size of a large room. As time went by, I was made smaller and smaller. In the_, I was given a family connected by a

11、_. Since the 1970s, many new _ have been found for me. Now I am a devoted friend and helper of the _ _. My _ is to provide humans with a life of high quality.,1642,1822,Analytical Machine,1936,universal,intelligence,1960s,network,applications,human,race,goal,What will computers be like in the future?,Appearance Function Size,Continue the story.,Discussion,Should parents buy a compu