《Computers》ppt79(2份)

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必修二 Unit 3 Computers 课件+教案 (2份打包)
Unit_3_Computers_教学设计_教案.docx
Unit_3_Computers课件.ppt
共29张,教学设计约1430字。

  教学准备
  1.   教学目标
  1. To practise listening comprehension.
  2.To practise making decisions and reasoning
  2.   教学重点/难点
  1. To practise listening comprehension.
  2.To practise making decisions and reasoning
  3.   教学用具
  课件
  4.   标签
  Unit 3 Computers
  教学过程
  Step1. revision
  1. check the homework exercises.
  1). It has been reported that children will be offered free education.
  It has been reported that free education will be offered to children.
  2). It has been said that we will be offered the latest computer science course book.
  It has been planned that the latest computer science course book will be offered to us.
  3). I have been told by Peter that I will be lent his notebooter for a week.
  I have been told by Peter that his notebooter will be lent to me for a week.
  2. Question: What can computers be used as?
  Step2. Lead-in
  As we know, science and technology is developing very fast and computers have become smaller and smaller. They have been used in many fields. So, the 21st century is the century of information technology What does it mean? Does information technology/ IT only mean things liters? Of cause not. Actually, it means more than computers. Computers are just one kind of IT. What else do you know is part of IT?
  (TV, radio, CD-ROM, DVD, books……)
  Step3. Listening (SB)
  1. Pre-listening: What are the changes brought by different forms of IT ?
  What are the advantages and disadvantages of them ?
  2. While-listening:
  Go through the chart and mare the students look at the chart before they listen to the tape. (This is to sharpen their attention and listen for the answers. This will also help them get the gist of the text.) Then Listen to the tape and finish filling in the chart. (If necessary, play the tape for several times.)
  Say: After listening to their talk, we know all kinds of IT have both disadvantages and advantages.Let’s check the answers together.
  Type of IT Advantages Disadvantages
  TV You can both listen and watch. You cannot write to friends.
  Web You can find information. It is very expensive.
  Radio You can listen to English. You cannot watch a film.

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