Question

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 (避雷針). This device protects buildings from being damaged by lightning.

Modern science has discovered that one stroke of lightning has a voltage (電壓) 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.

1.People once thought lightning came from ________.

A．the gods	B．the earth
C．the sky	D．nature

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

A．Metal fences.	B．Machines.
C．Electricity.	D．Lightning rods

3.Lightning can travel ________.

A．a(chǎn)s quickly as water	B．not so quickly as electricity
C．a(chǎn)t very high speed	D．a(chǎn)t very low speed

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.

 

Answer 1

【答案】

1.A

2.D

3.C

4.B

【解析】

試題分析：

1.細節(jié)題。由第一段Some ancient people believed that lightning and thunder were the weapons of the gods.一些古代的人認為雷聲和閃電是諸神的武器。故選A

2.細節(jié)題。第三段In the same year he also built the first lightning rod (避雷針). This device protects buildings from being damaged by lightning.美國科學家發(fā)明了避雷針，這種裝置能夠保護建筑物不被閃電損壞，因此，所有的建筑都需要避雷針。故選D

3.細節(jié)題。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.閃電能夠以每秒3000萬米的速度傳播�？芍�，它的速度相當快。故選C

4.細節(jié)題。第六段one should stay out of water and away from metal fences. 在雷雨交加的天氣，人們也應該遠離水和金屬物。因此，在雷雨天氣中，游泳時一個好主意是錯誤的。故選B

考點：記敘文

點評：文章記敘了作者很喜歡去Harrow的那個游泳池玩，在那里可以故意去推一些孩子下水。一次作者將一個很杰出的運動員推下了水，引起了反感。作者從這件事中領(lǐng)悟到了以后要避免這樣的事情再發(fā)生，以后做事要更慎重。文章題目并不難，理解好文意，再進行答題。