TaskⅠ: Skimming

1. Where is the passage most probably taken from? A. An environmental magazine B. A diary C. A novel. D. A story 2. What is the main topic of the article? A. The earth B. Global warming C. Greenhouse effect D. Carbon dioxide 3. Who wrote the article? A. Charles Keeling B. Janice Foster C. George Hambley D. Sophie Armstrong

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