Lightning is a powerful force of nature. In f...

Lightning is a powerful force of nature. In fact,　 a lightning strike carries millions of volts（伏特）of electricity. Scientists say a bolt of lightning strikes somewhere on Earth every second. That is a lot of energy!

Think how wonderful it would be if we could capture lightning and sell it in a bottle. Sadly, that is not something you or I can do, at least not yet.

The phrase "to catch lighting in a bottle” means capturing something powerful or difficult. Then you are able to control it and perhaps show it to the world. This is where the "bottle” part is important.

We can also use "to catch lightning in a bottle" to describe an extremely difficult or unlikely success. In the world of sports , players and teams have also been known for catching lightning in a bottle. Anything physical that is "lightning in a bottle "can be described as a rare achievement. Climbing the top of Mount Everest is considered a rare achievement of endurance（忍耐力）.

Language experts do not know exactly where this expression comes from. Some say it may have started with Benjamin Franklin---the American diplomat, businessman and inventor. Benjamin Franklin is known for a scientific experiment involving electricity and lightning. As the story goes, Franklin once flew a kite in a lightning storm. He had hoped that lightning would strike the kite as it flew high in the sky. He thought the electricity would travel down the string to a metal key at the bottom. Then the plan was to catch the electricity in a glass jar, but that didn't happen. However, it did lead to the invention of the lightning rod and the understanding of positive and negative charges.

So, you can’t catch real lightning in a bottle. But hopefully, during your lifetime you'll have the experience of catching a little of your own lightning in a bottle・

1.How does the author start the passage?

A.By comparing different views.

B.By giving an example.

C.By presenting some facts.

D.By stating his own experience.

2.The reason why Benjamin Franklin did the scientific experiment was that he aimed to

A.catch the electricity

B.fly a kite in a lightning storm

C.invent the lightning rod

D.understand positive and negative charges

3.Which kind of magazine is this passage probably from?

A.Entertainment. B.Language.

C.Science. D.Sports.

高二英语阅读理解中等难度题查看答案及解析

In old times,  man considered lightning to be one of the great mysteries(神秘事物)of nature.  In fact a single flash of lightning 1. 6 kilometers long has enough electricity to light one million lamps.

The American scientist, Benjamin Franklin, was the first to suggest that lightning is in fact electricity formed between the earth and clouds high above. It happened in 1752. In the same year, he also built the first lightning rod(避雷针)to protect buildings from being struck by lightnings.

Modern science has discovered that lightning is very strong and powerful. A lightning between a cloud and the earth may be as long as 13 kilometers, and travels at a speed of 30 million meters per second.  Scientists have the opinion that there are about 2, 000 million flashes of lightning per year. In the United States alone, it kills almost one person per day.     The safest place to be in during an electrical storm is a closed car. Outside, one should go close to low ground for cover and not stop under a tree. Also one should stay out of water and away from metal fences. Inside a house people should keep away from open doorways and windows and not touch wires or metal things.

1.From this passage we know lightning is_______ .

A. one of the great mysteries of nature

B. electricity high above the earth

C. a kind of light

D. the sound from the clouds

2.In the US _______.

A. every person can see lightning every day

B. at least one person is killed by lightning every day

C. there are about 6 million flashes of lightning per year

D. about one person per day dies from lightning

3.During a lightning storm, it would be best if you _______.

A. stand under a tree  B. go outside  C. stay in a closed car   D. stop near windows

4.A lightning rod can _______.

A. prevent accidents caused by lightning

B. stop lightning

C. protect buildings from being washed away

D. delay the coming of lightning

高二英语阅读理解中等难度题查看答案及解析

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.

1.People once thought lightning came from ________.

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

3.Lightning can travel ________.

4.Which of the following is NOT true?

高二英语阅读理解简单题查看答案及解析

In earliest times, men considered lightning to be one of the great mysteries of nature. Some ancient peoples 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. 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 a tree. Also, one 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 sky　　　　　　　　 B. the gods

C. the earth　　　　　　 D. nature

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

A. Metal fences.　　　　 B. Electricity.

C. lightning rods.　　　 D. Machines.

3.Lightning can travel ________.

A. as quickly as water

B. not so quickly as electricity

C. at very low speed

D. at very high speed

4.Which of the following is NOT true?

A. In the U.S. about 360 people die from lightning in a year.

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

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

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

5.Lightning is probably ______ to man.

A. useful　　　　　　　　 B. kind　　　　　　　　 C. useless　　　　　　　　 D. Friendly

高二英语阅读理解中等难度题查看答案及解析

In earliest times, men considered lightning to be one of the great mysteries of nature. Some ancient peoples 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. 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 a tree. Also, one 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 sky　　 B. the gods

C. the earth　　 D. nature

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

A. Metal fences.　　 B. Electricity.

C. lightning rods.　　 D. Machines.

3.Lightning can travel ________.

A. as quickly as water

B. not so quickly as electricity

C. at very low speed

D. at very high speed

4.Which of the following is NOT true?

A. In the U.S. about 360 people die from lightning in a year.

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

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

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

5.Lightning is probably ______ to man.

A. useful　　 B. kind　　 C. useless　　 D. Friendly

高二英语阅读理解中等难度题查看答案及解析

Of all nature's disasters, forest fires are often considered the most frightening. Moving at lightning speed, huge walls of flames can burn acres of land in just a few minutes. And although technology, including the use of fire-retardant chemicals, has greatly helped the fight against forest fires, they still do great damage.

According to the National Interagency Fire Center, the fire season last year was the worst on record in terms of the number of fires and acres burned. There were 96. 385 fires and 9.873429 acres affected by fire in a year that was 125% more destructive(毁灭性的) than the10-year average. These fires cost the federal government $1.5 billion to fight, and this figure does not include the money spent by local and state governments as part of the effort.

Fires in the southern states represented half of the national total last year with Texas, Oklahoma and Arkansas being home to a usually high amount of activity. Wildfire has also taken place in Western states such as California, Colorado and Alaska throughout the past 10 years.

It is said that two-thirds of forest fires are started accidentally by people. Almost one quarter are purposely set, while lighting causes 10%.

Forest fires can have advantageous effects. Charcoal(木炭) enriches soil and some plant species(种类) grow well after fire. The cones of the jack pine tree, for example, will not spread their seeds unless there is heat. Douglas fir trees grow best in open sunlight areas after fire.

1.Forest fires are considered to be the most frightening because____.

A. fire-retardant chemicals can't be made use of

B. huge walls of flames can burn acres of land

C. they make the greatest loss of all disasters

D. they spread too fast and do great damage

2.Almost 25% forest fires are set_____.

A. unexpectedly　　 B. by lighting　　 C. on purpose　　 D. naturally

3.What does the last paragraph mainly talk about?

A. The advantages of forest fires.　　 B. The usage of charcoals.

C. Pine trees need fires.　　 D. Fires destroy all plants but two.

高二英语阅读理解简单题查看答案及解析

He is always full of _______ as though he never knew tiredness.

A. strength                           B. power                   C. force                         D. energy

高二英语单项填空中等难度题查看答案及解析

请阅读下面短文，然后按照要求用英语写一篇150词左右的文章。

Water is the driving force of all nature, Leonardo da Vinci claimed. Unfortunately for our planet, water supplies are now running dry at an alarming rate. The world’s population continues to increase but that rise in number has not been matched by adequate supplies of fresh water. Reports show that more than a billion individuals — one in seven people on the planet — now lack access to safe drinking water.

In Sao Paulo, a Brazilian city, drought got so bad that residents began drilling through basement floors and car parks to try to reach groundwater. Officials in this city warned that rationing（配给制）of water supplies was likely soon. Citizens in Sao Paulo might have access to water for only two days a week. In California, US, officials have shown that the state has entered its fourth year of drought. At the same time, its per capita（人均）water use has continued to rise.

（写作内容）

1.用约30词概括上述信息的主要内容；

2.结合上述信息及日常生活，简要分析导致全球淡水资源短缺的主要原因（不少于两点）；

3.谈谈在日常生活中我们应如何保护淡水资源（不少于两点）。

（写作要求）

1.写作过程中不能直接引用原文语句；

2.作文中不能出现真实姓名和学校名称；

3.不必写标题。

（评分标准）

内容完整。语言规范，语篇连贯，词数适当。

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高二英语概要写作困难题查看答案及解析

Hope is the most powerful motivating force（驱动力）that helps people to overcome the difficulties.1.you need a guiding force to keep you moving toward your goals.Hope keeps you on your feet and makes you much stronger.

Hope is your strength and inner faith in the battle of your life. 2., you lose everything. You do hard work and make a great effort to succeed in life but fail. That makes you upset and depressed. You do not know what to do. At that time hope comes to your rescue and gives you encouragement.3.

Hope increases the productivity, efficiency and creativity in people. A hopeful person is a positive person who can succeed in any field of his choice. 4.The best service we can do to the mankind is giving hope to the hopeless.

5.? Yes, hope gives meaning to life as without hope there is no reason to live. Give hope to the people and they will become more creative and more productive. Hope is vital to the life of every person. Besides, hope is necessary not only for life but also for living a healthy life. Hope is the best medicine that keeps away tension, depression, high blood pressure and other health problems. I had two big heart attacks and while at the edge of death, I had hope that I would survive. And the hope of getting well kept me alive.

A. A hopeless person is a failed person who can never succeed in life

B. Have you ever lost hope and felt sorry for yourself

C. Since you're full of hope for the future

D. You try one more time and succeed

E. In the ups and downs of life

F. Is hope necessary for life

G. If you lose hope

高二英语七选五简单题查看答案及解析

—Can you help me with this question, Tom?

—Sorry, it is beyond my________.

A.power   B.strength        C.force     D.energy

高二英语单项填空简单题查看答案及解析