人教课标 高一 必修 2 Unit 3,Warming up,Heavy! Difficult! Hard! Tired!,Easy! Fast! Free!,monitor,keyboard,mouse,speaker,modem,scanner,printer,USB flash disc,hard disc,Label each part.,monitor,screen,CD-ROM,mouse,keyboard,hard disk,1. Look at these pictures. In pairs discuss what they have in common. 2. What do they tell you about the development of computers? 3. What do you think will be the next development?,Whats next?,1. Who is the speaker in this story? A computer. 2. Write down three sentences from the story to support your idea. 1) I was built as an Analytical machine by Charles Babbage.,2) My real father, Alan Turing, 3) I was always lonely standing there by myself, until in early 1960s they gave me a family connected by a network.,1. Where were you in 1642? In France. 2. What happened to you after nearly two hundred years? I was built as an Analytical Machine by Babbage.,3. What were you called in 1936? A universal machine. 4. What happened to you in the 1970s? I have been used in offices and homes.,The computer began as a calculating machine.,The computer grew rapidly both in size and in brainpower.,Read the passage and finish the timeline.,Computers had grown as large as a room.,1960s,Computers were used in offices and homes.,Computers connect people all over the world together.,Read the passage again and complete the chart below.,calculating,analytical,universal,mathematical problems,Medical operations,Memory,Transistors,Applications,Communication,Trade,Over time I have been changed quite a lot.,These changes only became possible as my memory improved.,Calculating machine Analytical machine Universal machine PC laptop,tubes transistors chips network World Wide Web, communications finance trade robots mobile phones medical operations space rockets providing a life of high quality,Since the 1970s many new applications have been found for me.,the second generation (1956-1963),the third generation (1964-1971),the fourth generation (1971- ),The first generation (1945-1956),The history of computers,What is PC? Speak the name on the whole.,It means: personal computer.,2. What is IT?,Information Technology.,3. What is CD-ROM?,Compact disc read-only memory.,4. What is PDA?,Personal digital assistant.,5. What is W.W.W?,World wide web.,6. 科学技术。,Science and technology.,7. 人工智能。,Artificial intelligence.,8. 笔记本电脑。,Notebook computer.,9. Who was the first person to devise the first computer?,Charles Babbage invented an analytical machine in 1822.,10. Who was the computers real father?,Alan Turing.,How computers have changed our lives?,Retell the text according to the following clues and then write down your retelling.,Homework,Changes of the machine,Calculating machine,Analytical machine,Universal machine,Machine with artificial intelligence,Machine with new transistor,A family connected by a network,A family used by the Internet,Retell,