浙江省臺(tái)州市天臺(tái)縣平橋第二中學(xué)高中英語(yǔ) Unit3 computers period1課件 新人教版必修2

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(yǔ)謎語(yǔ)) )I am very big. Scientists use me to solve some mathematical problems. huge computerDo 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 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?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?PDAabacuscalculatorhuge computerPClaptopWhats next?Can you tell the development of computers?robotwork for us in Mars(火星火星)Whats next?carry thingswork in wars (戰(zhàn)斗戰(zhàn)斗)仿真機(jī)器人entertainment 娛樂(lè)娛樂(lè)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 watch movieslisten to musicread books and magazinessend emails to friendsdownload music and filmsshopping onlineplay games on the computerdraw picturestake part in chat groupsParts of computerskeyboardmousemodemscannerprinterspeaker移動(dòng)硬盤(pán)移動(dòng)硬盤(pán)USBFlash disc 1 TB 固態(tài)硬盤(pán)固態(tài)硬盤(pán)Hard disc:What is it in English?Main board(主板主板)What is it in English?CPU (central processing Unit)中央處理器中央處理器What is it in English?RAM (隨機(jī)存儲(chǔ)器隨機(jī)存儲(chǔ)器)(Random Access Memory )What is it in English?Keyboard (鍵盤(pán)鍵盤(pán))What is it in English?Power supply(電源電源)DVD ROMDigital Versatile Disc Read Only Memory 數(shù)字通用光盤(pán)數(shù)字通用光盤(pán)