高中英语 Unit3 computers period1课件 新人教版必修2 课件.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,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?,abacus,Riddles(,谜语,),I am very big.Scientists use me to solve some mathematical problems.,huge computer,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?,calculator,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?,laptop,PDA,Personal Digital Assistant,I 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?,robot,Im 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 Computer,Im 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?,PDA,abacus,calculator,huge,computer,PC,laptop,Whats,next?,Can you tell the development of computers?,robot,work for us in Mars(,火星,),Whats next?,carry things,work in wars (,战斗,),仿真机器人,entertainment,娱乐,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 movies,listen to music,read books and magazines,send emails to friends,download music,and films,shopping online,play games on,the computer,draw pictures,take part in,chat groups,Parts of computers,keyboard,mouse,modem,scanner,printer,speaker,移动硬盘,USB,Flash disc,1 TB,固态硬盘,Hard disc:,What is it in English?,Main board(,主板,),What is it in English?,CPU(central processing Unit),中央处理器,What is it in English?,RAM,(,随机存储器,),(Random Access Memory,),What is it in English?,Keyboard(,键盘,),What is it in English?,Power supply,(,电源,),DVD ROM,Digital Versatile,Disc Read Only Memory,数字通用光盘,