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浙江省高中英語 Unit3 Warming up課件 新人教版必修2 新人教版必修2

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浙江省高中英語 Unit3 Warming up課件 新人教版必修2 新人教版必修2

ComputersUnit 3Unit 3The development of computersObjectiveTest your knowledge of the development of computers.我們在此處增加本課時重點單詞和短語表我們在此處增加本課時重點單詞和短語表達部分達部分, , 旨在幫助學生在上課前對早讀學旨在幫助學生在上課前對早讀學習的單詞及短語進行復(fù)習回顧,從而加深習的單詞及短語進行復(fù)習回顧,從而加深記憶。記憶。 用一分鐘時間對單詞進行復(fù)習,使學用一分鐘時間對單詞進行復(fù)習,使學 生在新課學習中沒有單詞障礙。生在新課學習中沒有單詞障礙。 通過朗讀,使學生熟練掌握單詞的正通過朗讀,使學生熟練掌握單詞的正 確發(fā)音。確發(fā)音。 所呈現(xiàn)單詞均出自課本所呈現(xiàn)單詞均出自課本單詞表單詞表中的詞中的詞 匯。匯。Words reviewvt. 計算計算adj. 普遍的;通用的;普遍的;通用的; 宇宙的宇宙的calculateuniversalA toy?A handbag?A computer is a machine which keeps knowledge in its memory and does work on that knowledge. This knowledge 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 lonely 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 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 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 that 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 technology. 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 English 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 printerscannermodemscreen 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 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(dǎo)計算機高速超導(dǎo)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 know 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 part of your life? Discussion Discussion HOMEWORHOMEWORKK1. Write a passage to talk about the functions of a computer or a robot in about 80 words.2. Preview the Reading: WHO AM I?

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