答案解析

1.【答案】B。解析：细节题。由第一段Some ancient people believed that lightning and thunder were the weapons of the gods.一些古代人认为雷声和闪电是诸神的武器。故选B。

2.【答案】C。解析：推断题。第三段In the same year he also built the first lightning rod (避雷针). This device protects buildings from being damaged by lightning.美国科学家发明了避雷针，这种装置能够保护建筑物不被闪电损坏，因此，可以推测建筑物需要的是避雷针。

3.【答案】D。解析：细节题。第四段A flash of lightning between a cloud and the earth may be as long as 13 kilometers, and travel at a speed of 30 million meters per second.闪电能够以每秒3000万米的速度传播。可知，它的速度相当快。

4. 【答案】C。解析：细节题。第六段one should stay out of water and away from metal fences. 在雷雨交加的天气，人们也应该远离水和金属物。因此，在雷雨天气中，游泳时一个好主意是错误的。根据倒数第二段最后一句 In the United States alone it kills an average of one person every day.可知选项A说法正确;根据倒数第二段第二句Lightning hits the Empire State Building in New York City 30 to 48 times a year.可知选项B说法正确;根据最后一段第一句话The safest place to be in case of an electrical storm is in a closed car.可知选项D说法正确。

5.【答案】A。解析：推断题。结合最后两段可知雷电会致死，有雷电的时候要注意安全。所以雷电是危险的。

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