Lesson 21Books or ComputersWordsexpressionspressappearmodernelectronicselln.印刷机。新闻界印刷机。新闻界v.出现。呈现。来到出现。
computersppt课件Tag内容描述：
1、Unit4 The Internet Connects UsLesson 21:Books or ComputersWarmup1Presentation2Language Points3Exercise4WarmupFree talkHo。
2、Lesson 21Books or ComputersWordsexpressionspressappearmodernelectronicselln.印刷机;新闻界印刷机;新闻界v.出现;呈现;来到出现;呈现;来到adj.现代的;新式的现。
3、Lesson 21:Books or ComputersLearning aim:1.Learn about the history of the books.2.Know about the fountain of the printin。
4、Chapter 2Question discussion:What do you do with computersDo you know the names of thesemonitorkeyboardfloppy diskdrives。