1、Unit4 The Internet Connects UsLesson 21:Books or ComputersWarmup1Presentation2Language Points3Exercise4WarmupFree talkHo。

2、Lesson 21Books or ComputersWordsexpressionspressappearmodernelectronicselln.印刷機;新聞界印刷機;新聞界v.出現(xiàn);呈現(xiàn);來到出現(xiàn);呈現(xiàn);來到adj.現(xiàn)代的;新式的現(xiàn)。

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。