A: By reflecting on Americans’ previous failures in predicting earthquakes.
B: By noting where the most severe earthquake in U. S. history occurred.
C: By describing the destructive power of earthquakes.
D: By explaining some essential geological principles.
举一反三
- Passage Two Questions 4 to 6 are based on the passage you have just heard.
- Passage Two Questions 12 to 15 are based on the passage you have just heard. Passage 2-12
- Passage Two Questions 19 to 21 are based on the passage you have just heard. 20. A: Impractical. B: Inconsistent. C: Unmanageable. D: Unfair.
- Questions 19 to 21 are based on the passage you have just heard. 19.
- Passage Two Questions21 to23 are based on the passage you have just heard. （） A: Some of them had once experienced an earthquake. B: Most of them lacked interest in the subject. C: Very few of them knew much about geology. D: A couple of them had listened to a similar speech before.
内容
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Questions 19 to 21 are based on the passage you have just heard. What are some people worried about according to the speaker？
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Passage Two Questions 19 to 22 are based on the passage you have just heard. A: The medicinal effects of cola. B: The history of cola. C: A recipe for a soft drink. D: Soft-drink production.
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Passage One Questions 1 to 3 are based on the passage you have just heard.
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Passage 2[br][/br] Questions 19 to 21 are based on the passage you have just heard. A: 38%. B: 25%. C: 36%. D: 21%.
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Passage Two Questions21 to23 are based on the passage you have just heard. （） A: Interrupt him whenever he detected a mistake. B: Focus on the accuracy of the language he used. C: Stop him when he had difficulty understanding. D: Write down any points where he could improve.