人教新课标unit3 computers warming up&pre-reading(陕西省西安市)

课件28张PPT。Unit3 ComputersPeriod1 warming up and Pre-reading By Song LeiHow much do you know
about a computer???Give the English name of the
following pictures of the
computer components (组件)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??hard disc
(硬盘)What is it in English??Keyboard (键盘)What is it in English??monitorscreenWhat is it in English??mouse
鼠标DVD ROMmonitor
screen
mouse
keyboard
hard disk
DVD-ROM(1) the part of the computer that looks like a television.
(2) the part of the monitor that you look at.
(3) something you use to click on things (files, etc.)
(4) the part of the computer that you type on.
(5) the part of a computer that stores information.
(6) The part of computer that we can put a CD in.
Work out the names I. Look at these pictures. Discuss what they have in common. Warming upPersonal digital assistantabacuscalculatorlaptopPDAhuge computer PC 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 don’t like me now.
Do you know who I am?abacusRiddles(谜语): 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?calculatorRiddles(谜语): 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 I’m small enough for you to take me with you.
laptopDo you know who I am?Riddles(谜语):(What do they have in common? )I think that…
In my opinion…
I believe that…
What’s your reason?
Why do you think so?DiscussionWhat’s next? what is the next computer like?
Draw it on the blackboard.1.Look at the pictures and the title of the reading passage. Predict what it is going to be about .Pre-reading:2.What can we do with a computer and Internet?As a student, I use the computer or internet to ……DiscussionComputer and Internet type my homeworkdraw picturesplay gamescommunicate with my friends.gather information for my lessonslisten to musicwatch movies……typewriterprojectorvideo game playerdrawing boardIII. Look at these inventions. Can you put them in an order according to the time when they appeared?(　 ) analytical machine
(　) calculating machine
(　) PC(　 ) laptop
(　 ) robot
(　 ) universal machine２１４５６３The Development Of ComputersPCrobotwords and expressionsanalytical adj. 分析的
analyse Vt.
calculate (Vt.)
universal adj. 普遍的，通用的
n.Calculator1. Talk about computers after class.
2. Preview the Reading at Page 18. HomeworkThank you!