文章大意:本文通过历史回顾和科学分析,提醒人们多关注New Madrid地区频繁的地震。
1.This passage is mainly about________.
A. the New Madrid fault
B. the San Andreas
C. the causes of faults
D. current scientific knowledge about faults
答案:A 主旨大意题。由本文第一段的最后一句话“But how many people know about the equally serious New Madrid fault in Missouri? ”可知。
2.Which of the following pictures best describes the type of the New Madrid fault?
答案:B 细节理解题。本文第四段和第五段内容可以判断The San Andreas fault是水平地震,而The New Madrid fault是垂直地震,所以B项正确。
3.This passage implies that________.
A. horizontal faults are more dangerous than vertical faults
B. vertical faults are more dangerous than horizontal faults
C. a lot of people would die if the 1811 New Madrid earthquakes happened today
D. the volcanoes that caused the New Madrid fault are still alive.
答案:C 推理判断题。本文无A、B两项相关内容;根据第五段中第二句“Suddenly, the volcanoes cooled and the rock collapsed, leaving huge cracks. Even now, the rock continues to settle downwards”可以排除D项;根据第三段第三句“Few people were killed in the New Madrid earthquakes, probably simply because few people lived in the area in 1811”可以推测答案为C。
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