| Unit 1 Section Ⅰ Main Ideas and Important Details Passage 1 Zimbabwe Children Are "Wasting Away" Passage 2 Fashions Passage 3 When Did Americans Begin Sending Greeting Cards? Section Ⅱ Listening-Based Integrated Exercises Passage 1 Manners and Customs in Different Cultures Passage 2 Laziness Passage 3 Direct and Indirect Taxation Section Ⅲ Optional Listening Exercises Passage 1 Jump Passage 2 White and Black Passage 3 The Origin of the Song——"Happy Birthday to You" Unit 2 Section Ⅰ Main Ideas and Important Details Passage 1 The Effects of the Internet Passage 2 Windows XP Passage 3 Internet Blogs Section Ⅱ Listening-Based Integrated Exercises Passage 1 Finding Friends on the Internet Passage 2 Emotion-Sensitive Computer Passage 3 Roborior： A Robot House-Sitter Section Ⅲ Optional Listening Exercises Passage 1 Low-Cost Computer Under Research Passage ... |
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