unit3Computers阅读(1)

1、Unit 3 ComputersWhat English words do you know about computers?1243561 A monitor is2 The screen is3 A keyboard is4 A mouse is5 A CD-ROM is6 A hard disk is (a) the part of a computer that stores information.(b) the part of the computer that you type on.(c) the part of the computer that looks like a t

2、elevision(d) something you use to click on things (files, etc.).(e) the part of the monitor that you look at.(f) The main device that a computer uses to store information.What do you use computers and the Internet for?What do you use computers and the Internet for?1.Help to do homework2.Play compute

3、r games3.Send e-mails4.Listen to music5.See movies6.Chat (聊天聊天) 7.Search for information8.Do shopping 9.Learn computer skillsYesNoI often use a computer to, I sometimes use it to, and I never use it toComputers have great power. They make our lives more colorful and more convenient. BUT Dont spend t

4、oo much time in playing computer games or chatting online. We should learn more computer skills which are very useful in our future work. With the development of science and technology, many new things appear in human beings life.Lets guess what they are:2. I am a machine which moves very fast on fo

5、ur wheels. You need a license(执照执照) and must be very careful when you drive me. Rolls Royce, Benz and BMW are some famous kinds of me. car3. I am a machine which is a good helper in doing house work. I wash clothes for people. Who am I?washing machine4. A machine that you use to talk to other people

6、 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 it is a kind of computer which can be taken conveniently like a notebook.A laptopPredict what does “I” refer to. In the passage, “I” refers to _. a computerthe topic sentence of each p

7、aragraph. Paragraph I: paragraphII: paragraphIII:So the whole passage is mainly about:_.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. the development of computers. 1642 19361940s 1970s

8、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. T

9、he _ machine was made by Charles Babbage.began as a calculating analyticalwrote a book to describegrown as large asa PC as a laptopScanning:The history of computersCareful readingRead the passage more carefully and find more information about computers.early days( paragraph 1)Q1: What could a calcul

10、ating machine do?A1: A caculating machine could simplify difficult sums.Q2: What could an analytical machine do?A2: An analytical machine could think logically.Q3: What could a universal machine do?A3: A universal machine could solve difficult mathematical problem.Q4: How did I change rapidly in siz

11、e?A4: As large as a room, PC, a laptop.FunctionsPoorStrongsize: large-small DevelopmentNetwork times (the 2nd and 3rd para)my memoryTubes(shape)Large_Small chips _have been found in many fields._ Narrow Finance_RobotsMobile phones_Space rocketsMedical operations TransistorsApplicationsCommunicationT

12、radeSmallWide(small-large) I began as a _ machine in 1642 in France. In 1822 I was built as an _ machine. Then in 1936 Alan Turing wrote a book and built a _ machine. As time_ _, I was made smaller but my memory got _ and _. In the 1960s they gave me a family connected by a _. Now people call it the

13、 Internet. I was used in _ and _ since the 1970s. Since my birth I have truly been built to serve the human race.calculatingAnalyticaluniversalwent bylargerlargernetworkofficeshomesSummary Advantages1. study and work: search for information2. fun: play games, download music and films, read books and magazines, go shopping on line3. social contact: send emails to friends, communicate with others . Disadvantages1. get too addicted to it.2. waste too much time: play computer games, chat with others3. may be