Unit 4 Lesson 21 Books or Computers课件+嵌入音视频(共42张PPT）

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• 适用地区：全国
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资料简介

(共42张PPT)
Unit 4
The Internet Connects Us
Review
Boys and girls, have you mastered all the words, phrases and sentence patterns you learned in the last lesson
Now let's check it out. Click on the audio to start the dictation.
Lesson 21
Books or Computers
To understand the passage about books.
2. T...