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In earliest times, men considered lightning

时间:2022-10-11 09:04:59 作者:李瑞文 字数:4019字

In earliest times, men considered lightning to be one of the great mysteries of nature. Some ancient people believed that lightning and thunder were the weapons of the gods.

In reality, lightning is a flow of electricity formed high above the earth. A single flash of lightning 1.6 kilometres long has enough electricity to light one million light bulbs .

The American scientist and statesman, Benjamin Franklin, was the first to show the connection between electricity and lightning in 1752. In the same year he also built the first lightning rod (避雷针). This device protects buildings from being damaged by lightning.

Modern science has discovered that one stroke of lightning has a voltage (电压) of more than 15 million volts (伏特). 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.

Scientists judge that there are about 2,000 million flashes of lightning per year. Lightning hits the Empire State Building in New York City 30 to 48 times a year. In the United States alone it kills an average of one person every day.

The safest place to be in case of an electrical storm is in a closed car. Outside, one should go to low ground and not get under tress. Also on,e should stay out of water and away from metal fences. Inside a house, people should avoid open doorways and windows and not touch wires or metal things.

With lightning, it is better to be safe than sorry.

小题1:People once thought lightning came from ________.

A.the godsB.the earth

C.the skyD.nature

小题2:According to the passage what do you think all buildings need?

A.Metal fences.B.Machines.

C.Electricity.D.Lightning rods

小题3:Lightning can travel ________.

A.as quickly as waterB.not so quickly as electricity

C.at very high speedD.at very low speed

小题4:Which of the following is NOT true?

A.In the U.S about one person per day dies from lightning.

B.Swimming during a thunder storm is a good idea.

C.The Empire State Building frequently gets hit by lightning.

D.A closed car is the best place to be during an electrical storm.

答案

小题1:A

小题2:D

小题3:C

小题4:B

解析

小题1:细节题。由第一段Some ancient people believed that lightning and thunder were the weapons of the gods.一些古代的人认为雷声和闪电是诸神的武器。故选A

小题2:细节题。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,所有的建筑都需要避雷针。故选D

小题3: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。故选C

小题4: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。故选B

点评:文章记叙了作者很喜欢去Harrow的那个游泳池玩,在那里可以故意去推一些孩子下水。一次作者将一个很杰出的运动员推下了水,引起了反感。作者从这件事中领悟到了以后要避免这样的事情再发生,以后做事要更慎重。文章题目并不难,理解好文意,再进行答题。

知识点

人物传记类阅读的定义

人物传记类文章的文体特征:

人物传记是记叙文体的一种,主要描写某人的生平事迹、趣闻轶事、生活背景、个性特征、成长奋斗历程等,包含记叙文的时间、地点、人物、事件等要素。其特点是以时间的先后或事件的发展为主线,空间或逻辑线索贯穿文章始终,脉络清楚,可读性较强。