人教版必修二Unit 3《Computers》word教案(2)

Topic sentence Paragraph three 1. Since the 1970s many new applications have been found for me. Supporting details 1. cmmunications 2. finance 3. trade 4. robots 5. mobile phones 6. medical operations 7. space rockets True or false

1. Step 8 H The computer began as a calculating machine in 1742.(F) 2. The Analytical Machine was made by Charles Babbage in 1822.(T) 3. Computers had new transistors and became smaller in the 1960s.(T)

4. Alan Turing wrote a book to describe how computers could be made smaller.(F) 5. In the past people thought the computer was simple-minded.(T)

6. In the 1960s the first family of computers was connected to each other.(T) 7. Computers could share information and express their feelings.(F) 8. Computers connect people all over the world together.(T) Step 6. Summary I was born as a _ calculating machine in 1642. When I was young, I was good at____________ difficult sums. About 2 hundred years had passed before I could think _________ and produce_______ answers. At that time, I was called an ___________ machine. In 1936, I was built as a ___________ machine . I had the ability to _______any mathematical problem. From then on, I grew rapidly both in _______ and memory. After I stored my memory on __________instead of in _____. I became _______ in size but _________in intelligence. As time went by, I became even smaller, for I put my memory on a very small ______, which made me become PC and laptop.

In the 1960s, I could be connected with other computers by a ___________. From then on, I was able to share my knowledge with others through the _____ _____ ______. After that, I had many new______________. Now, I am glad to serve human beings as a ________ _________ and a pleasant ___________.

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