人教版必修2 unit3 Computers P1 Warming up

1、ComputersUnit 3Unit 3Words reviewvt. 計算計算adj. 普遍的；通用的；普遍的；通用的； 宇宙的宇宙的calculateuniversalThe development of computersObjectiveTest your knowledge of the development of computers.A toy?A handbag?A computer is a machine which keeps knowledge in its memory and does work on that knowledge. This knowledge

2、is kept in symbols; it is called data. A computer usually has a monitor to show results. However, some computers can speak. These computers can be used for voice mail. What is a computer?I am very old now. I was born in China. Many people used me for calculating in the past, but now I am a bit lonel

3、y because they dont like me now. Do you know who I am?abacusRiddles (Riddles (謎語謎語) )I can be used for calculating. Besides, I can also be used for watching DVD, sending e-mail and communicating through the Internet. However, I am not a PC, because Im small enough for you to take me with you. Do you

4、 know who I am?laptopPDA Personal Digital AssistantI am so small in size that I can fit in your hand. I usually have a small screen usually bigger than a digital phone, however smaller than the smallest laptop, Im a great way to store telephone numbers, access the Internet, make calculations, and so

5、 on. Do you know who I am?I am very small. I can be used for calculating. In China, a lot of students use me when solving mathematical problems. Do you know who I am?calculatorI am very big. Scientists use me to solve some mathematical problems. huge computerDo you know who I am?robotIm a machine th

6、at works automatically. I can do a wide variety of tasks, especially suitable for doing jobs too boring, difficult,or dangerous for human beings. Do you know who I am?PC Personal ComputerIm a small, relatively inexpensive computer designed for an individual user. Im based on the microprocessor techn

7、ology. At home, people use me to surf the Internet and play games. Do you know who I am?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.In pairs discuss what they have in common.DiscussionDiscussionCan you give us the E

8、nglish names of a computer components (組件組件)?Tips: 1. We can use a computer to 2. It is made up of some parts, such as keyboard 鍵盤鍵盤mouse 鼠標鼠標monitor 顯示器顯示器screen 屏幕屏幕speaker 音響音響host 主機主機components of a computermain boardCPU (central processing unit)floppy diskDVD ROMUSB flash disk printerscannermo

9、demscreen keyboardmouse monitorDVD-ROM hard disk1. the part of the computer that looks like a television2. the part of the monitor that you look at3. something you use to click on things (files, etc.)4. the part of the computer that you type on5. the part of a computer that stores information6. the

10、part of computer that we can put a CD inMatch Match PDAabacuscalculatorhuge computerPClaptopWhats next?Can you tell the development of computers?robot高速超導計算機高速超導計算機 激光計算機激光計算機分子計算機分子計算機量子計算機量子計算機 DNA計算機計算機神經(jīng)元計算機神經(jīng)元計算機 生物計算機生物計算機 未來高性能未來高性能計算機計算機What do you think will be the next development?Do you k

11、now in what ways computers are used today? Work out a list and compare it with your partner.search for see movieslisten to musicread books and magazinessend emails to friendsdownload music and filmsbuy things onlineplay games on the computerdraw pictureslook at photographs on the computeruse a computer for school worktake part in chat groupsBesides computer, what else can we get information from?Have the computer and Internetbecome